SCIENTIFIC ABSTRACT SHEBANOV,M V.A. - SHEBANOVA, M.P.

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• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT


T TT C, a ---I-T-.'Cjr,_-,~j-,, I~. ~ -_- 5�- 9Z5fi
_J

i'I'L E Z.
zz oil -taro Isctc-ic n r~ C les
a
(Obrazovani.7--c- na -Anc~ -all
Russian)
PEE R 16 DLI I C k L Zhurnal i Teor~' Piziki, 1957, Vol 32,1',r 06,r~p 1328-1334
(U.S S .-LL. )
A32M.UICT For an an~-le of observation of the present paper determines the
energy spectra and the diff~2r-:.ntial -orocniction cross sections of po.-
sitive and negative pions on 6euterium, as well as thc- production
cross zec~iQns of ne.,ative -oions on carbon.In addition to the re-
sults obtained by Poroshkin and Tyapkin the necessary data for the
cozaz)arison of results rith the relation & + (5-=2clowas
-
Here or+, a- and 10 denote the total or differ-
ir !his way obtained.
t:ntial cross sectional'of the productiot. of positive, ne.-ative, and
reutral !-i~sons resi),Lcti-vely.-,.:Iasuiereits Tieie carried out on the ex-
terior proton bundle of the sy::chrocYclotron of the United in_--titu-
te for I~Aaclear I~search.T'ae measurin- aethod and the ar,.)ar~,tus "aave
already been "Iescribed in so--e otf the aathorls nrev-1ous -ror'-Ls.
Results obtained by measuring the energy spectra of positive and
negative raesons whnA were pToduced b,r 66o Eev protons on deuteri-
ums and carbon at an an.-le of observation of 450, are sho-rn toqe-
ther in a table.A further table contains the differcntial crcso
'lard 1/2 sections of the -oroduction of oositive and nez~-ative mesons. The he-

AUTHORS: '.7eshkovskiy, A.G., Shalamov, Ya. Ya., Shebanov, V.A., 56-3-8/59
TITLE: The Production of Negative R-Mesons by the Bombardment of Various
Nuclei with 66o MeV Protons. (Obrazovaniye otritsatellnykh n-mezo-
nov protonami s energiyey 66o MeV na yadrakh razlichnykh elementov)
,IODICAL: Zhurnal Eksperim. j Teoret.Fiziki, 1957, Vol. 33, Nr 3, pp.6o2-605
(USSR)
ABSTRACTt For an angle of observation of 450 with respect to tile proton beam
of 66o MeV the meson-production cross sections dd-/d2 for the
following elements were determined. -/d!2. 1027
Element d(S
Li o,93 + o,14
Be 1,00 + 0,15
C 1,00 + 0,13
Al 1,64 + o,26
Cu 2,82 � 0,43
For kg and Pb the n-meson yield was measured only at a meson ener-
9Y Of 157 + 5 MeV. Herefrom da-/d~l for Ag can be determined at
(2,87 � 0,88) mb/Eteradian for Pb with (4,16 + 1,16) mb/steradian.
There are 2 figures and 4 Slavic references .
Card 1/2

The Production of Megative A-Mesons by the Bombardment of Various 56-3-8/59
Nuclei with 66o MeV Protons.
SUBMITTEDs garch 25, 1957
AVAILABLEt Library of Congress.
Card 2/2

SHFBAD-TOV, V. A . , Cand Phys--!.:ath Sci -- (diss) OForriation of charged
7T -mesons by protond with an energy of 66o Mev~upon the nuclei of
various elements." Nos, 1958. 6 pp (Acad Sci USSR) (KL. 16-,~-8, n6)
7T - ~
-10-

30V-120-5( -1-5/43
AUTHORS: Blino-,.r, G.A., Lomanov, IJ.F. , Mesh-'-ovs-"'-iy, A.G., Shala:,aov,
Ya.Ya. and Shebanov, V A
TITLE: A Large Freon bift-ble Chamber (Bol'shaya puzyr,kovaya
freonovaya 1kamera)
PE71RIODI"IAL: Pribory i Teldinika El-csnerimenta, 19581 Nr 1, 2 plates
and PP 35-38 (USSR)
AB'J'TLZA3T: Tite wor'lin;_'; volwno of the chamber described in the pres-
Oard 1/2
ent paper is 17 litres and it works at room temperature at a
pressure of 38 at-m. A mixture of freon-12-freon-13, having
a density of about 1.2 is used. The maximum path of particles
in ti-iis chaniber is 0.7 of the mean path between nuclear
interactions. A diagram of the chamber is shown in Fig.l.
The main body of the chamber is made of steel and the windows
are covered by plexiglass plates, 9 cm thick and attached to
the body of the chamber by steel flan3es. A description is
'ziven of a device giving good pressure control. The chamber
was used in the beam of the synchrocyclotron of the United
Institute for Nuclear Studies. The beam employed was either
the proton or the neutron beam, the maximum energy being
680 MeV. F4-.3 (facing P-34) shows a photograph of particles
scattered froLa a paraffin target irradiated with 670 MeV
Pro tons. The following persons are thanked for their inter-

SOV-120-58-1-5/43
A Lar-e Freon Bubble Chamber.
LD
est and collaboration: A. I. Alikhanov, V. A. Beketdv, Yu. I.
lvlalkarov, LT. G. Polikarpov, V. A. Shchegolev, V. P. R=yantseva
and Ye. V. Kuznetsov. There are 3 figures, 1 table. and 8
.L-,~f~.,rences, of which 5 -are English and 3 Soviet.
SUBMITTED; July 45 1957.
1. B14bble chambers--Design 2. Bubble chambers--Materials
3. Methyl halides--Applications 4. Particles--Detection
Card 212

S OV/56 -3 4 -6 -0 //51
4 :.'c r, h k ov s L. .1 73halamov, Y:- . Ya. S',,ebanov, 14.
T -,:,E The -nerf7j Spectra and Vie Ancular Distribution of the Positive
('0 "e : I -
_7ions Froduced by 6 ) I- V -'rotons o~ Carbon (--nerC;eticheskiye
si;ektry i iu-lovoye ra2predeleniye z -7,esorov, obrazovannykh
'60 -.-eV)
na liglerode protonami s ene.rgiyey a
7hurnal eko-erimentallnoy i teoreticheskoy fiziki, 1958,
7101 34, -!r 6, pp 11.26-1233 (USSR)
...s -,)a er i_nvest~,~ates the encr,-~f spectra and the absolute
Yieldz o~ the positive Dions produced bv O"SO '.,eV rrotons on
or the anCi 0 00 in the
carbon f es 19 30', 290, 38','5'- , and 650
laboratory system. All the measureLsnts were carried out by
means of a pion spectrometer in the exterior proton beam of
Vle synchrocyclotron of the Laboratoriya yadernykh problem
Otryedinennogo Institutia yadernykh issledovaniy (Laboratory
for Nuclear Troblems of the United Institute for 'Niuclear Re-
search). A table shows the results of the measurement of the
differential cross sections d2a_,/dP- dE for various observa-
Card 1/3 tion angles and the energy spectra of the positive Dions are

SOV~/56-34-6-8/51
~-~e Ener7y SDectra and the Angular Distribution of the Positive Pions
Produced by 660 'I,eV Protons on Carbon
demonstrated by some diagrams. An other table gives the cross
sections dcl+ ds? . --he next part of this paper discusses the
form of the spectra. The average energy of the positive pions
in the system connected with thecenter of inertia practically
does not dem-nd on t-e departure angle and a-mounts to -100 MeV.
The cros-- oection dcl ~/dQ
(in the system of tie center of inertia) does not deperld much
0
on the an.-le in the interval 36 103 . An analogous result
was also found for neutral pions (Ref 0). The above mentioned
cross section may be estimated also by considerations basing
on the nrinci-le of the isotonlic invariance. The ratio-dU+/da-
denends only little on the angle and the yield of the negative
mesons amounts only to 15 - 20 of the Dositive meson yield.
T'oe last -,art of this nn.-.,,er compares the yields of the positive
Mesons u)roduced on free and bound -orotons. The decrease
%1b.1j, 2 times) of the probability of the produ~!tion of positive
pions by p-p-collis-Lons in a carbon nucleus wilth respect to
t'--e analogous Vrobability for free D-D-collisions can be ex-
Card 2 :Aained vcll bythe absorption of protons ~n 'lie nuclear matter,
//3 -1 - U

SOV156-AA-'-0151
I -r G
-c'ra ---d tlle Anjular Distribution of the Positive ons
7 'r.C, '-.2V 7
.r o d ue d hjU -'rotons cr Carbor
i the exT..erirentally ubserved Iositive pions were produced
on tle nuel-sus curface. The authors thank Yu. D. -2-o'e-.o--:!-Lkin
for the disoussion of the recuits. There are 2 firuren, 2
tablec, I-Ind 15 references, 11 of --hich are Soviet.
January 137 1958
Card 3/1.3

::9
7 0 V
3'- b o v -1 1
TITLE: Enerz6y Scectr~,. and Anjular Distribut'-Ion of jt~-:,esons Produced
in p-p Collicions at an Enerj-~, of 0660 - 7~C, -eV
I Q .,. (Ener~eti-

C.",e-.1:i7,,e s-ektry i u~' 1 1
iovoye raSpredeleniye zi -
L; -mezonov
obrazovannykh v p-.p-soudareniya1r-.!-. -pri ener&iyakh 6~0-670 Mle7)

PERIODICV'T:
Zhurna', e'-o-~;eri.::enta' Ino i teoretic~.ei:!-O.v f;:~"--
Y - . ~ . I ~ . , , -~o
7C,
Vol Nr 1, 0 p U.j
A~ ST R-A C T T'.:e --iut'-oro ."Jvq a abD1:t
coilision.s at E = 670 MeV and ccmpare their :-esu -itus
-.1i t h tpose olt~l-~ned in e-..riier naoers 'Res 1--7) by
ot'ier Soviet aut',Ilors. 3 i r1orov (Ref 1 investi-ated p-p
collisio-s at E 6 6 0 -.eV 5 ~njles 'Cetaeen 60 and
0 -
ID, +
120 ; -,eshcrieryakov et al. (Ref 2,~ investi,-,a-ted t'~le r,
spectr,um --t 240 ime-uns of MLjrj-.Cti,-- analysis; it was
again Jeshcherya' ov et al. (FLef -i,,ho reporteLf on
the determination of t-e absolute -.0----7ield at 29, 406j and

0
6
5 and the s~)--ctra at 29 and 460; lle~~-anov and Savc
Card 1/ 3 (Ref 4) investim-ated Lhe enerL7
Y s -,~ e t r, ~ o n zl s b- e tw e e n

f . II f
En ercry S ;j t ra an'! a r lu, ~ u f n Z S
Produced in p-p Col' iSions ~-_t --:n. Ener.~4y of 660
I OR ~rd I 'no af-: t',le '-.veen _60 and 1600
etc. In the present paper observations are carr*ed out
at 19030', 380 and 56(), and ET,+ as well as the differential
cross section d2 (j/d-QdE -lire mc-asured (results in tables
1 and 2 and in fib-urcs 1 and 2, all in c.m,s,)~ I-, vias
found t-at in t-e c m. s. tre sha ce of the snectrun
_p+p 4 P+n+n+ reac t 4
for the ~on de-jends on the an-le of
emission. For the anjular distribution. th-e for:7ula
d /dR W=1(0,97 + 0,06)+(0,50+ 0,21)cos 2~r-*3.10-27cj ~teradian-'
is obtained. The numerical results for t-e 6,~*-vaiues
betweel~ 35 and 1010 at E = 6~_,O 1,.,e'V are -iven in ta-ble 3.
For tu-e total cross secPion
Ir+
27 2
C (14,4 + 1,2_')-10_ CM s o-ta4.ned. FiFure 'A showis
pp 0 1 0
T-L+-s7,%ectra atE ')60 ,,eV -for 19 301, 29, -56,46 and 56
-.,,hic'- are v;i4th. the result o-tained by 1-eshc-eryakov
j
1. (Ref 2) for 240. In conclusior t-e a,,ft',am tnan?,
et a
Card 2/3 V.P.Dzhelecov _-F'or the ne d_-s,_,_7ayed in th~is zaper,

EnerEy S~ectra -~nd -'r:---,jlr D-'stri'-,-A-*().,. cf' s,-
11 ...... . - I - - - - U.L - .- - - --,; - - i "
Produced in Coll i s ions --: t an Ene o f. r-~C'C - :. - e 7
and I.-lu.vobz-a--ev for d scussed t'- e e -X e r e t I
r e s t s e re a r e fj -1, S 7 r
allof w'ric- are Soviet.
SUB',.: ITTED: Felbvtiar-y 24, 19513
5/ 3

24(5)
AUTHORS: Blinov, G. A., Lomanov, Id. F., SOV/56-35-4-71/..1_9
Shalamov, Ya. Ya., Shebanov, V. A., Shchegolev, V.
TITLE. Investigation of the Interaction of Tr +-Mesons With Light Nuclei
in the Energy Range 80-300 MeV (Issiedovarliye vzaimodeystv--*Iy
e-mezonov s legkimi yadrami v oblasti energiy 80-300 MeV)
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheskoy fiziki., 1958,
Vol 35, Nr 4, pp 880-886 (USSR)
ABSTRACT: The investigations were carried out in a Freon bubble chamber
(17 liters, 50.22.15 cm3) for ten energy values in the range of
80-300 MeV; measurements were carried out, for the interact-ion
between positive pions and C-, P-, and Cl-nuclei, of the charge-
exchange scattering cross sections, of star production cross
sections, and of total elastic and inelastic scattering cross
sections. In the interval of 210-300 MeV the production of
charged pions by v7*-mesons was observed in 6 cases. In transition
from 80 to 200 MeV the exchange scattering cross section is
doubled and attains 10~. of the geometric nuclear cross section.
The star production cross section has its maximum at about
Card 1/3 180 MeV. Also 260 MeV proton interaction was investigated.

Investigation of the Interaction of ff~"-Mesons SOV/56-35-4-,7/52
With Light Nuclei in the Energy Range 80-300 MeV
A comparison of stars occurring in exchange scattering with stars
occurring in the interaction between protons and C-, F-, and
Cl-nuclei shows that exchange scattering in light nuclei oc3urs
as a result of a single interaction of the inciding e-meson
with the individual nucleon of the nucleus. Comparison of stars
occurring in absorption with ihose produced by protons shows that
within the energy interval investigated 10'-absorption is in
general the result of a single interaction of the Tr+-meson with
a proton-neutron pair. In the case of 200 MeV IT+-mesons this
process occurs in 60-Mlfo of cases. The experimental order and
the carrying out of the experiments is described in detail.
Results are shown by diagrams and tables. Figures 2-4 show
photographs of charge-exchange scattering processes. Figure 4
shows a typical case of a IT 0 + e + + e + f reaction. For
1_+
I -mesons the exchange splattering reactionc with free nucleons
develop according to t1ja scheme 11+n -1P, Tr0p, and the absorption
(E pion (pp). For the 6 cases
Card 2/3 of the generation of charged Dions on F-nuclei a cross section

Investigation of the interaction of ir +-Mesons SOV/56- 35 -4-7/5 2
'With Light Nuclei in the Energy Range 80-300 MeV
of (0-7 � 0-3) . 10-27cm 2 was measured. The authorz
thank A, A. Tyapkin for discussing the results, V. P. i)zhelepov
for making it possible to carry out the experiments, and
V. P. Rumyantseva and K. A. Zaytsev for their assistance in
evaluating measuring results. There are 7 figures, 3 tables,
and 10 references, 5 of which are Soviet.
SUBMITTED: May 6, 1958
Card 3/3

24(5)
AUTHORS: Uomanov, M. F., Meshkovskiy, A. G., SOV/56-35-4-8/52
Shalamov, Ya. Ya., Shebano,,r_,_V- A-, Grashin, A. F.
TITLE: Bremsstrahlung of tT-Mesons in Interaction With Nuclei
(Tormoznoye izlucheniye iT-mezonov pri vzaimodeystvii s yadrami)
PERIODICAL: Zhurnal ekSDerimentallnoy i teoreticheskoy fiziki, 1958,
Vol 35, Nr 4, pp 887-893 (USSR)
ABSTRACT: Already in earlier papers the pion bremsstrahlung in the nuclear
field of forces has been investigated theoretically by several
authors (Refs 1-4, Landau, Pomeranchuk, Vdovin, Solov'yev).
Solov'yev investigated pion bremsstrahlung at energies near the
rest-energy of pions, and determined the bremsstrahlung cross
section on the nucleon as being of the order of 10-28cm2. pr
.:r
the pion bremsstrahlung on nuclear forces larger cross sections
are obtained. In the present paper the authors report the
discovery of a pion bremsstrahlung during the investigation of
the interaction between positive pions and light nuclei in the
energy range near rest energy. Experiments were carried out
Card 1/3 with the external ir -meson beam of the synchrocyclotron

Bremsstrahlung of ly-Mesons in Interaction With Nuclei SOV/56-351-4-8/52
of the Laboratoriya yadernykh problem Ob"yedinennogo instituta
yadernykh issledovaniy (Laboratory for Nuclear Problems of the
United Institute for Nuclear Research). The authors used a
bubble chamber with a Freon mixture (CClF2+CClF3). The t-quanta
of the bremsstrahlung were observed by means of the conversion
effect on electron-positron pairs. (In this connection compare
also the papers worked out by the authors in cooperation with
Blinov and Shchegolev)(Refs 5, 6). Energy- and cross secticn
measurements are here carried out for pion nuclear force brems-
strahlung in the energy range of 80- e + rdecays
by means of a 17 liter freon bubble chamber. The chamber was
located in the external -M + beam of the synchrocyclotron of the
OIYaI (Joint Institute of Nucleax Research). The 200 Mev
r +-mesons were slowed down by means of a graphite filter and
Card 1/3 were stopped in the chamber space. About 20000 stereophotographs

On the Decays ~&-q-e + r and ? 4 e + V + ;~ + r SOV/56-37-3-52/62
were obtained, which were twice evaluated. The evaluation lines
are given. Of the three possible decays /u -* a + Y + _~ + r ,
7 -, A + -Y + d-, and /", -). e + r not a single one of the third
kind was found among 91000 ir-,U-e decays. V, was determined as
amounting to :!!f 4.3-lo-5 . In the evaluation of the plates
reactions of the first kind were found with (eq-r) < 1800; such
a photo is shown by figure 1. Such a decay has hitherto not
been observed. A table shows all cases in which Er;~; 15 - 20 Mev
and in which the angle (e, r) 2~ 50 -600. The table contains
data concerning the (e, ?-)-angle, E. and E,., as well as the
energy of the decay products." . For processes of the first
kind it was found that Q = 105.2 Mev, for those of the second
kind - 33.9 Mev. Figure 2 Shows investigation results in form
of a diagram, where the number of recorded pairs is plotted
versus the angle of rotation in the muon stopping oint The
4 e + V +
ratio of the reactions 92 e + v + T +
was determined as amounting to 80 + 0 24 10-3.
(0. - 0:36).
Card 2/3 Theoretically, 1.02-10-3 < ~2< 1.80.10-3 WAS obtained

On the Decays ~k 4 e + r and ~t 4 e + Y + Y + SOV/56-37-3-52/62
(for the A-V interaction). The authors finally thank
Academician A. I. Alikhanov for his discussion and interest,
M. F. Lomanov, Yu. I. Makarov, and V. I. Smetanina for their
assistance, I.-S. Bruk for m~ki-ng it possible to carry out
computations on the electronic computer of the type M-2 of the
Institut elektronnykh i upravlyayushchikh mashin AN SSSR
(Institute for Electronic and Control Machines of the AS USSR),
and R. A. Ioffe for carrying out these computations. There
are 2 figures, 1 table, and 8 references, 1 of which is Soviet.
SUBMITTED: June 9, 1959
Card 3/3

S/120/60/000/03/042/055
E032/E514
AUTHORS: Shalamov, Ya. Ya. and Shebanov, V. A.
The Use of Xenon-Freon and Xenon-P __TMixtures in
TITLE:; ropane
Bubble Chambers,02
~7
PERIODICAL: Pribory i tekhnika eksperimenta, 1960, No 3,
pp 141.-142
ABSTRACTi In their search for working substances having a high
Z which can be used at room temperature and are not
toxic or corroding, the present authors have carried
out experiments designed to determine the characteristics
of mixtures of xenon with various other substances used
as the working liquid in bubble chambers. It was found
that mixtures of xenon with freon-12 (CCI 2 F2) and
xenon %,rith propane (C H8) were the most satisfactory.
The mixtures were tesM in a stainless steel chamber
having a working volume of 44 CM3. The characteristics
of the mIxtures found experimentally at a working
Card 1/2 temperature of 250C are given in the following table.
ve

82002
S/120/60/000/03/o42/055
E032/E514
The Use of Xenon-Freon and Xenon-Propane Mixtures in Bubble
Chambers
Mixture Percentage Saturation Density at Radiation
Composition Vapour 250C length,
of Xe (by Pressure of cm
weight) the Mixture
at 25*C
1~xe +
Ccl 2F2 37.6 23,6 1.5 9.3
2~xe+c 3H8 65.0 24~6 o.96 12.0
The first mixture has a high density and a low radiation
length. It is non-corrosive. The second mixture has a
high density of the free hydrogen,reaching the liquid
hydrogen density. Acknowledgments are made to Ye. V.
Kuznetsov for discussions and to Yu.I. Makarov for
assistance in this work. There are table and 6
references, I of which is Soviet and 5 English.
SUBMITTED- April 10, 1959
Card 2/2

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SH&LAWW, Ya.Ya.; SHEBANOV, V.A.
Using xenon-freon and xenon-propano mixtures for bubble chambers.
Prib. i tekh. eksp. no-3:141-142 My-Je 160. (MIRA 14:10)
(Bubble chamber) (Xenon)

8689h S/056/60/039/005/010/05-
B029/BO77
AUTHORS: Shalamov, Ya. Ya., Shebanoy A.
~ I V.
TITLE- Production of W 0. Mesons Due to -ff-p Collisions With a
w- Meson Momentum of 2.8 Bev/C
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheskoy fiziki, 1960,
Vol 39; No~ 5011), pp, 1232-1236
TEXT: The authors investigated the cross section for the reaction:
W- + P--Imffo ~ r (m = 1,2. 3) for p,,. = 2.8 Bev/c; for this purpose the outer
negative pion beam of the proton synchrotron of OIYaI (Joint Institute of
Nuclear Research) was studied with the aid of a 17-1 bubble chamber filled
with a propane- xenon mixture or a Freon-13- Freon--14 mixture, About 3000
stereo-pictures were made of theIT- beam, Several examinations of the
pictures disclosed 125 trackless stars in the propane-xenon mixture and
103 in the Freon mixture,. Here is the distribution of the number of events
in the gas mixture as a function of the number of electron-positron pairs:
.1) Number of (e+ - e-) pairs 0 1 2 3 4 5 6
2) Number of events in the propane-xenon mixture 13 30 41 20' 9 5 1
Card 1/3

86894
Production of Tt0 Yesons Due to T-'p Collisions 3/056/60/039/005/010/051
With a x- Meson Momentum of 2.8 Bev/c B029/BO77
3) Number of events in the Freon mixture 13 52 22 11 3 1 -
The probability of finding trackless stars on C,F,Cl (Freon) nuclei, or on
B,C,Xe (propane-xenon mixture) nuclei is (0,93tO~1)% or (1~61_0,15),4 of the
total cross section of inelastic interaction between negative pions and
nuc.'Lei- By using the above data the cross section per free proton was
calculated to be (2,.2-'- O~3 mb), The angular distribution of t quanta agreed
for both gas mixtures- Therefore, Pig. 2 furnishes also the quantum
distribution in a neutral pion decay if this pion has been for-med on a
free proton. The cross sections for the Tr- + p-4m7rO + n reaction with
m'= 1,2,3 are d = (0.2tO.25) mb, d
Vn 21TOn ~ (1.3+0.4) mb, d31ro =(0-7tO.4)mb-
The angular distribution of ~% quanta is very anisotropic in the center-of-
mass system, and can be divided into two parts, one of which is isotropic-
For a hard neutral-pion spectrum, the angular distribution of neutral
pions agrees well with that of r quanta- According to V.M. Maksimenko,
the jr- + p-4mIO + n reactions have to total 10.70% of the inelastic scat--
tering cross section involving negative pions and protons. The above
values agree well with experimental data yielded by the present study
(10.1 + 1~4 %). The anisotropy in the angular distribution of neutral pions
Card 2/5

86894
Production of R 0 Mesons Due to IT-p Collisions S/056/60/039/005/010/051
With a iy- Meson Momentum of 2.8 Bev/c B029/BO77
cannot be explained by the statistical theory., V. S. Barashenkov attempts
to explain the asymmetric angular distribution of the mesons produced by
assuming that the peripheric collisions amount to,?_20~6 of the total cross
section of a ff-p collision. The cross section of 2exchange scattering may
be written as 6(jr- + p-~ Tr' + n) = (9/2) C f - 91 , where the amplitudes f
and g correspond to the isotopic states of T=3/2 and T=1/2, According to
L., B, Okun' and I.. Ya. Pomeranchuk, the exchange scattering cross section
amounts to a small fraction of the total inelastic scattering cross
section at high energies; therefore, f--g, The authors thank Academician
All I., Alikhanov for cooperation, Academician V,. I.. Veksler for making
these experiments possible, Yu,. S. Krestnikov3 Yu, I. Makarov, N~S~Khropov.
N., G, Birger, and V. M- Maksimenko for discussions, I. S. Bruk for
statistical computations and for making possible calculations on the elec-
tronic computerM-2(M-2)of Institut elektronnykh i upravlyayushchikh mashin.
Akademii nauk SSSR (Institute of Electronic and Control Machines, Academy
of Sciences USSR), and also G, M. Adellson who made these calculations..
Ye V Kuznetsov is mentioned. There are 2 figures, 12 tables, and 10
references: 5 Soviet, 4 USp and 1 Dutch,,
SUBMITTED: July 2. 1960
Card 3/3

SHEBANOV., V.A.y inzh.
Heat cycle during welding and hard facing of sheets with spaced
arcs. Svar. proizv. no.6:12-15 Je 161. (MIM 14:6)
1. Khersonskiy sudoremontnyy zavod.
(Electric welding)
(Thermometry)

SHEBANOV, V.A. (g.Kherson)
Processes of heal'. treatment and certain characteristics of the I
hard facing of small cylindrical parts. Avtom. svar. 14 no.5-
30-36 My 161. (MIRA 14--5)
(Hard facing) (Machinery-Maintenance and repair)

SHAIAI-'OV, Ya.Ya,_- 10~ A
J~IT.Ab GRASHIN, A.F.
Generation of YO (A Y2 0)-hyperons and KO-mesons on light
nuclei by 7j--mesons having t. pulse energy of 2.8 Bev/c.
Zhur, eksp. i teor. fiz. 40 no.5:1302-1312 My 161.
(MIRA 14:7)
l.. Institut teoreticheakoy i eksperimentallnoy fiziki AN SSSR.
(Hyperons) (Mesons)

8/137/62/000/002/12!/144.
A052/AIOI
AUTHOR Shebanov, -1, A,
medium
Physico-mechanical properties of built-up metal in C02
PE5LODI'-AL-1 Feferativnyy zhurnal, Metallurglya, no. 2, 1962, 11, abstract 2E,~!
1
("Zap. Leningr. s.-kh. in-ta, v. 85, 1961, 68-73)
To study the combined work of the base metal and.the metal built-up
on the surface of a part in C02 medium, comparative tests for fatigue, ak and
wear of CT 45 (St 45) samples were carried out. The samples were normalized
prior to building-up. The building-up was carried out or. direct 2urrent of
r ever'sed polarity from the CYF -26 (SUG-2b) welding generator with CB -o8r2 CA
.6-.-1),%2SA' and CB -LOr
.I JC ~Sv-10GS) wires 1.6 and 2 mm in diameter. The fatigue
tes,7~- was :arried out onacantilever machine with 3,000 rpm. The decrease of
6~ of the samples built-up with Sv-08G2SA wire in C02 medium did not exceed
6 4~/;,:-ompared with the St 45 reference samples. The impact test was'carried out
f-,Pd the effect of building-up on the tendency of metal to pass into the
brlt-le state. The test results have shown that the mean ak value of the samples
t;uilt-up with Sv-08G2SA and Sv-10GS wire is higher than ak of St 45 reference
~~ ard ! 1/2

hm~
SICE bANCV, V.A. , J-nzh.
Repairing ship parts by built-up welding in a carbon dioxido
atmosphere. Sudostroenie 27 no.9:53-55 S '61. (141RA 14-11)
(Ships-Maintenanm azA topMrI

SHMMOV, V.A.,, inzh,
Selecting -e~rfacing conditions. Sudostroenie 27 no.11:54-56
N 161. (MIRA 15: 1)
(Ships-Welding)

BAYUKOV, Yu.D.; LEKSIH, G.A.; SUCHKOV, D.A.; SHALAMOV, Ya.Ya.; SHEBANOV, V.A.
Backward elastic scattering of 2.8 bev/c I"r "-mesons on neutrons.
Zhur.eksp.i ~por.fiz. 41 m.1:52-55 J1 161. (MIRA 14:7)
1. Institut teoreticheskoy i eksperimentallnoy fiziki AN SSSR.
(Mesons--scattering) (Neutrons)

Y~: - Y A G
yu. P.;
C' ~,C Zc M 1 C~uulf-mb Field of
rep,-jrt pres~-ritA at the llth Intl. ColiPit"I", On 111 F r;7v
R-11 ~1(, -, Fn-,cjcs
Ccnc,-.-,a, 4-1.1 July 1~k,2
Institute of TheorettenL and E.---ritrerital 11hy,11ca,

v .7. Yl I. :,P. 1,; V. A.
,:c,irch for Rpsonp_nce3 in the !,-action of iG. Fair Fr~~,uctlon"
repart presented at the Intl. Conference on High Fncrj-_y PhZ;sics, Geneva,
4-U July lc,62
Inst. of Theoretical and Exyerluwntal Phyuics, Ybocow, U33SR

S/0 56/62/04 3/004/016/061
B102/B180
Yu. S., ~.uznetsov,.Ye. V., Mesh-
bar. in, V. V. , Kre:3tnikov,
v,; i y , it. G. , Nik i ti n, Yu. F. , S3hebaqov
!.(,son prodhiction in the nuclear-Coulomb field
ches'koy fiziki,-v. 43,
Zhur!-.A. erimental"noy i teoreti
1962, 12~'3 - 1230
the i. ch, -~ism of cotter.-it interaction, in which momcnti.tm
tr;-nsfer ver-: lo-.,,- -nd nucleir excit-ition absent, I-C + NA _.~- + -0 + ,
z IL IL LIA
z
re. lc~ion!-., .-er~_ cx~lmined. They cnn only occur.via interaction with the
field, diff'ructive pion "dissociations" being. strongly for-
d len. unly ono :)ion dissociation experiment is hitherto kno,.,,,n (BaYdassar-
re et -I. '~'IIOVO Cim. 21, 45'~-), 1961). Using a 2-liter xenon bubble chamber
.anri ".d 114_~V/c -C ii.esons from the proton-synchrotron of the OIYaI about
1,',_),000 ~3toreophotoErapihs were otntained, and a similar number with a freon
ch ~,. Pi b c r. 48 ,in~l 31 everts of j'L_ scattering through 3-300accompanied by
,-.,,-o eiectron-positron pairs were found respectively. After kinematic ana-.
& ri r,4 1 /2

3/'G 4/, 16/ f~ 6, 1
t n! I c vc n t s %- 11 ~2 hcould be attributed to the
+ Xe of the total nual-
L is 5 . 7�
bur o' i.-I.c.-iction2, the cro.,3-: section of which, v.,as 120C.) 111b,
:Jon !ross section wa2 found to be- 4 +1 .6
_qk
rf"'ici(~ncy t~tken into ticcount. v-.,ere a swirp pe
I < ,- i i t.ne nr;; 1!ir a i 3 tr; bu tion of this rcactilon. For the mean
.- -0 ph
-+TL - +1L was obtained
c r,j F: n o f e o t r a c o s - Tr 6+r. 2 nb
in t i o n (5~ It holds for t-ie rang-e
,,:re ~7, s t:-Le nion.mass and ;,, the center-of-mis~~ total
u: '~~e :L,.)n6 :.1(i.'~,ced in the photoprocess. linere are 3 fiEures and
in2,1 lt~;t toorpticheskoy i eksperimental Inoy fiziki Akademii
-%Uk o3oL'i -knstitute of T~ieoretical and Experimental Physics
0
of the nc.~def;iy of 5ciences U6jll)
i LJ: it 1'j, 1',,;;2
I

S/056/62/043/004/061/o6i
B104/B186
;,UT'--G'RS: 3armin, V. V., Krestnikov, Yu. S., Kuznetsov, Ye. V.,
"esh
kovsl-iy, A. G., Shebanov, V. A.
TITL-'-: Search for resonances of K ORO pair production reactions
-RICDICAL; Zhurnal eksperiment-allnoy i teoreticheskoy fiziki, V. 43v
.,,(l c) , 1962, 1564-1565
K 1:air production processes with 2.8 Bev/c n--mesons in Freon
and xenon bubble chambers had been studied by Ye. V. Kuznetsov and I. Ye.
TimaoshIn A, 40, 1959) and C. A. Blinov et al. (PTE, it 351 1956).
in these studies 36 and 13 events respectively.of KORO*pair production were
observed. '.o find possible resonances in the KORO system the distribution
of the pairs detected over their effective masses was now construct'ed'
(Fi.-,. a). The error in the masses is approximately +25 Mev. The broken
The distribution has a
lines indicate the boundary values of the m(KORO).
peak at m(KoKO) - 1275 Mev but the statistical reliability of this is
very low'. It was shown that the hypothesis of the decay of a
0.0-meson according to the scheme a 0 ---~ KO + 10 + no could be completely
Card 1 /~ -~Z-

S/056/62/043/004/061/061
Search for resonances of B104/B186
0
refuted. total of nine events was detected in which two K -mesons
departed without any charged particle or quantum. These events can be
interoreted according to the reaction n + p ---;O-K 0 + KO + n. In this case
the e;-~"
.,Lective mass of Ro + n can be determined from the momentum and
anele of departure of the K V/
O-meson (Fig. b). The peak at 1715 Mev has
little statistical reliability so the resonances can only be supposed.
There is 1 figure.
ASSOCIATI 07T: Insti-.ut teoreticheszkoy i eksperimentallnoy fiziki
(Institute of Theoretical and Experimental Physics)
SUB;,IITTED: July 17, 1962
Card 2//1.,)--

S/056/63/044/002!052/065
3184/3102
AUTFORSt Barmin, V. V., Kre3tnikov, Yu. S., Kuznotsov, Y~. V.,
I'eshkovskiy, A. G., 11 Sheb3rov, 7.
TITLLi flow data on X Mason production in the nuclear Coulo=*o field
FE-PIODICALt Zhurnal eksperimentallnoy i teoreticheskoy fiziki, v. 44,
no, 2P, 1963P 746 - 749
T-XTt The present article is a continuation of experimer,,31
(ZhEIIF, 43, 1223, 1962) on the reaction n- + Xe --o-n- + ~' + (e, 'Aserved
in a xenon bubble chamber bombarded by piona of 2.8 Bevj'c. 25 evcnts had
been found on scanning about 10,00C stereophotographs. No. another 15,000
stereophotogr phs were scanned four times and 53 nb production events were
found. Since da/dIl - f (~) tends to zero with 9 ---o- 300, the -.,~:action cross-
section was d:termined ftom the values obtained for 304re,4300, and cf.
- 2.65 1 0.90 mb was obtainedl 9 is the angle of x emission. The inelastio
scatt,ering crocs-seo tioA was taken as 1200 cb. From this result also the
cross - - no V
-section a P, of the reaction r+ n --on + as astimatedi assuming
a./_P ~ 7.5, &'value of 0.35 + 0.12 mb 'Was obtained fory 3P. There are
Card 1 2

New data. on K0 meson production ... S/056/63/044/002/05 2/o65
B180102
I figure and I table.
AS!;OC1,',TIOXs Institut teoreticheskoy i okeperimentallnoy fiziki ikademii
nauk sssR (Institute of Theoretical and Experimental Physics
of the Academy of Sciences USSR)
SUB M ITT ED iNovember 2, 1962
Card 2/2

'Flat"
ACCESSION Ng: AP4009109
V. V.; Dolgolefiko,
AUTHORS: Barmin,
Meshkovskiy, A. G.; Nikitin, Yu.'P.;
TITLE: Observation of the decay
S/0056A3/045/OOP/1879/1890
A~ G.- Ki stnikov, ~U. S.;
e
Shebanov, V. A.
SOURCE: Zhurnal eksper. i teoret. fiziki, v. 45,
1879-1890
no. 6,"1963,
TOPIC TAGS: Omega meson decay, Omega meson charge parity, radiative
decay, Omega meson width, Omega neutral particle decay, pion proton
interaction, negative pion proton interaction
0
ABSTRACT: The reaction 7r + p n + co L+ n + 7T + 'Y was investigated
for negative-pion momenta of 1.2t, 1.5~, and 2.8 BeV/c ip- a 17-
liter propane-xenon bubble chambpr 6 T~e purpose of the ~nvestiga-
tion was to detect the decay w --~ 7r '+ y --o. 3-y, the existepce of
which was established on the basis of the excess of numb4~r of events
Card 1/3

ACCESSION NR: AP4009109
wit
th three -rrays as compared with the-number of background events
from the reactions ~r_ + P ~ n + m7ro (M,> 2), and was further con-
firrd by a statistical method based on the kinematics of the w -
7r, + y decay. The cross sections for the reaction under study
were estimated in the indicated momentum interval. "in conclusion,
we express our deep gratitude to A. I. Alikhanov for constant
interest and valuable advice. We thank the ITEF (Institute of
Theoretical and Experimental Physics) proton synchrotron crew who
enabled us to obtain the large number of photographs in a short ,
time. We thank I. Ya. Pomeranchuk, L. B. Okun', I. Yu. Kobzarev,
B. L_ Ioffe, Yu. A. Simonov, and A. S. Zhizhin for fruitful theo-
retical discussions. We are very indebted to A. S. Kronrod, R. S.
Guter, and Ye. M. Landis for valuable advice and for organizing
and carrying out the calculations on the ITEF electronic computer.
We thank the scanning staff under the direction of V. P. Rumyant-
seva for scanning the pictures, Yu. I. Makarov, N. S. Khropov, and
B. I. Chistyakov for operating the bubble chamber, Yu. V. Trebukhov-
Card 2/3

ACCESSION NR: AP4009109
skiy for aid in the work and V.-V. Vladimirskiy for helpful discus-
sion of the results. Orig. art. has: 8 figures, 27 formulas, and
2 tables.
ASSOCIATION: Institut teoreticheskoy i eksperimentallnoy fiziki
(Institute of Theoretical and Experimental PlLysics)
SUBMITTED: 03Jul63 DATE ACQ: 02Feb64 ENCL: 00
SUB CODE: PH NO REF SOV:- 003 OTHER: 010
C-rd 3/3

ACCESSION NR; AP4009142 S/0056/63/045/006/2082/2084
AUTHORS: Barmin, V. V.; Dolgolenko, A.-Gi;;-Krestnikov, Yu. S.;
Meshkovskiy, A. G.; Shebanov, V. A.
TITLE: Search for the co --o e++ e- decay
SOURCE: Zhurnal eksper. i teoret. f.iziki, v. 45, no. 6, 1963,
2082-2084
TOPIC TAGS: Omega meson, Omega meson decay, negative pion proton
interaction, bubble chamber, proton synchrotron, three pion decay
ABSTRACT: An attempt is made to observe the decay (D-.*.e+ + e ex-
perimentally by the authors earlier (ZhETF v. 45, 1878, 1963) in a
17-liter xenon-propane bubble chamber exposed to 1.55 and 2.8 BeV/c
negative pion beams from the proton synchrotron at the Institut
teoreticheskoy i eksperimental'noy fiziki (Institute of Theoretical
and Experimental Physics). The chamber was operated without a mag-
Card 1/3

.I
ACCESSION NR: AP4009142
netic field, with 20,000 pictures at 1.55 BeV/c and 40,000 pictures
at 2.8 BeV/c scanned independently. Four two-prong stars were found
to satisfy completely all the selection criteria, along with three
doubtful cases. Reasons are advanced for assuming that all seven
two-prong stars are cases of the reaction 7r + p --a. n + w with the
subsequent (z ~ e+ + e- decay of the w meson. The sources of back-
ground reactions are ahalyzed. The value obtained for the ratio
of the probability of this decay to the three-pion decay is found to
+0.15 -2
.be (0.40 -0.30 ) x 10,which agrees well with the theoretical pre
dictions. "We are deeply grateful to A. I. Alikhanov for his con-
stant interest in the work and for valuable advice, to the scanning
department of the Institute of Theoretical and Experimental Physics
for scanning the photographs, to Ya. S. Yelenskiy for an experi-
mental determination of the scanning efficiency for electrons in a
chamber, and to I. Yu. Kobzarev and Yu. P. Nikitin for discussions.
orig. art. has: 2 figures and 2 formulas.
COM 2/3

ACCESSION NR: AP4009142
ASSOCIATION: Institut teoreticheskoy i eksperimentallnoy fiziki
(Institute of Theoretical and Experimental Physics)
SUBMITTED: 090ct63 DATE ACQ: 02Feb64 ENCL: 00
SUB CODE: PH NO REF SOV: 002 OTHER: 004
Card 3/3

ACCESSION NR: AP4012534 S/0056/64/046/001/0142/0147
AUTHORS: Barmin, V. V.; Dolgolenko, A. G.; Krestnikov, Yu. S.;
Meshkovskiy, A. G.; Shebanov, V. A.
____ -_ - - -.1 1. ~, .
TITLE: An investigation of the charge exchange n- + p - n + r 0 and
.Tr + p --o. n + ~ (q -+ 2,y) reaction in the 1.55--4.5 BeV/c region
I
$OURCE: Zhurnal eksper. i teoret. fiz., v. 46, no. 1, 1964, 142-147
TOPIC TAGS: pion proton interaction, negative pion proton interac-,
..tion, pion proton charge exchange, Eta meson production, neutral
pion angular distribution, pion angular distribution, backward scat-
tering, backward charge exchange, backward exchange scattering
ILBSTRIACT: The reactions were investigated with a 17-liter propane-
xenon bubble chamber with an aim at checking on the theoretical pre-
diction by L. B. Okun' and I. Ya. Pomeranchuk (ZhETF, v. 30, 424,
'44956) that a considerable decrease takes place in the exchange scat-
1~ff.
Card 1/3

ACCESSION NR: AP4012534
tering with increasing 7r meson energy. The number of pictures
scanned were 20,000, 60,000 and 20,000 at momenta 1.55, 2.8, and 4.5
BeV/c. The charge exchange reaction cross sections were found to be
3.0, 1.54 + 0.37, 0.36.+ 0.09, and 0.19 + 0.12 mb for 1.14, 1.55,
2.80, and 4.50 Bev/c. The TI-meson production cross sections for the
same momenta are 0.5, 0.32 + 0.22, 0.08 + 0.07, and 0.05 + 0.07, re-
spectively. From these values, and from the angular distribution of
the Tro meson in the charge-exchange reaction, it was found that the
differential cross section for backward exchange scattering is 0.04 +
+ 0.02 mb/sr for 1.5 BeV/c and 0'.008 + 0.005 rib/sr for 2.8 BeV/c.
"In conclusion we are deeply gra 'teful to A. I. Alikhanov for contin-
uous interest and for valuable advice, and to I. Ya. Pomeranchuk and
V. V. Vladimirskiy for a discussion of the results. We are grateful
to the ITEF proton synchrotron crew for providing a large number of
photographs within a short time. We are very indebted to L. 1M.
Vorenina, V. N. Dez, and N. A. Ivanova for carrying out the compu-
tations with the ITEF electronic computer. Orig. art. has: 3
Card 2/3

ACCESSION NR: AP4012534
figures, 4 formulas and 3 tables.
ASSOCIATION: Institut teoreticheskoy i eksperimental'noy fiziki
(Institute of Theoretical and Experimental Physics)
SUBMITTED: 30Jul63 DATE ACQ: 26Feb64 ENCL: 00
SUB CODE: PH NO REF SOV: 006 OTHER: 004
F;Ord 3/3

L 01319-67 2~-; TI W
ACC "': AT6031149 SOURCE CODE: UR/3138/65/000/401/0005/0016
AUTHOR: 'Barmin, V. V.; Dolgolenko, A. G.; Meshkovskiy, A. Shebanov, 9
v. A.
ORG: none
e at 2. B
TITLE: Analysis of xchange scattering with momentum
Bev1c
SOURCE: USSR. Gosudarstvennyy komitet po ispollzovaniyu atomnoy energii.
Institut teoreticheskoy i eksperimentallnoy fiziki. Doklady, no. 401, 1965.
Issledovaniye obmennogo reaseyaniya otritsatellnogo piona s protonom v rezul'tate
kotorogo poluchayetsya neytrallniy pion i ney-tron pri impul'se 2, 8 Gev/c, 5-16
TOPIC TAGS: exchange scattering, pi meson, proton, pion, pion proton interaction
ABSTRACT: An analysis is made of the :17 +P r eac tion at-. Po-. = 2. 8
Bev/c. The total cross section for this reaction is (2~ = 0. 35 � 0. 04 mb. The
angular distribution dd1dQ has two maxima: one close to 0' and the other within
the interval 0. 3