SCIENTIFIC ABSTRACT BOOS, E. G. - BOR, M.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000206310009-0
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: June 9, 2000
• Sequence Number: 9
• Publication Date: December 31, 1967
• Content Type: SCIENCEAB

SOV/120-59--l-12/50
Determination cC the Energy of Relativistic Particles froi-.1 Yieasure--
ments on Multiple Coulomb Scattering
C)
En-lish and the rest are Italian.
0
ASSOCIATION: Institut yadernoy fiziki AN KazSSR (Instuitute of Nu-Ilear
Physics, Academy of Sciences,Ka7-33R)
SUBMITTED,: Jazraary 4, 1958.
Card 4/4

24(5),21(7)
AUTHORS: Boos# E. G., Takibayevj Zh. S. SOV/56-37-1-43/64
TITLE: On an Evaluation of the Energy Characteristics of Shower-
producing Particles (0b otsenke energeticheskikh iharakteris-
tik livnegeneriruyushchikh chastits)
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheskoy fizkit 1959,
Vol 37, Nr 1, pp 292-293 (DSSR)
ABSTRACT:` It has already been shown experimentally that for the particle
hidmenta p, (in units go, where~
g denotes the particle masg) in
_
cdAmic showers it holds that: p P--1, where the individual
i
,~a
iues no longer deviate from & average value. This fact, as
*611 as the assumption concerning the symmetric flying-apart -
of-the shower particles in the cms, permits an evaluation of
the parameter yo
pc , where pc is the velocity of the
oms with respect to the laboratory system. The authors of the
present "Letter to the Editor" investigate two variants of
the symmetric flying-apart: a) the angular symmetry for partic-
les departing under the angles Q! and 0 1, if 81 - n- el , and
b) if on both sides of a plane that is perpendicular to the
Card.1/2 direction of the motion of the cms the same number of

On the Evaluati6n'of the Energy Characteristics of SOV/56-.717---l-43/64
Shower-producing Particles
particles is found. A table shows the numerical results of
Ih66retical considerations for a number of showers (the ex-
perimefital data were obtained from references 4-8); the
values for y. and K for the var~ants-a) and b) at various con-
ditions are given and are briefly discussed in the following.
It;was found that, under th& assumption p,~~ 1, an evaluation
of-the energy 6haracteristic (yc and K) in showers, of which
only the angular distribution of the secondary particles is-
known, is possible. The thus obtained yc-values agree well
with those which have been obtained on the assumption of an
exponential energy spectrum of the produce'd mesons (-Ref 7).
There 6~m 1 table and 9 references, 4 of which are Soviet.
ASSOCIATION: Institut yadernoy fiziki
if tute of Nuclear Physics
skays, SSR)
SUBMITTEDL January 15, 1959
Akademii nauk'Kazakhskoy SSR (Insti-
of the Academy of Sciences, Kazakh-
Card 2/2

5/707/60/003/000/003/013
B117/B102
AUTHORS: Boos, E. G., Takibayev, Zh- S.
TITLE: A survey of methods for estimating the energy and the
inelasticity coefficient in meson showers produced by
cosmic rays
SOURCE: Akademiya nauk Kazakhakoy SSR. Institut yadernoy fiziki.
Trudy. v. 3, 1960. Vzaimodeystviye vysokoenergichnykh
chastits a atomnymi yadrami, 46-63
TEXT; Thia survey analyzes various recent methods for estimating the
energy of shower-producing particles, which are based on angular
distribution measurements of secondary particles. L. D. Landau) A. 1.
Nikishov, and I. L. Rozentall are mentioned. There are 4 figures,
3 tables, and 35 references: 16 Soviet-bloc and 19 non-Soviet-bloc. The 1."-Z
four references to English-language publications read as follows: B.
Edwards, J. Loety, D. H. Perkins, K. Pinkau, and I. Reinholds, PhiL Mag.
1, 237, 1958; C. Powell, Report delivered at the Geneva Conference on the
Peaceful Use of Atomic Energy, Geneva, 1958; Camerini, Fowler P. H. et al.
Card 1/2

S/707/60/003/000/003/013
A survey of methods for ... B117/B102
Phil. Mag- All, 413, 1950; V. D. Hupper et al. Phys. Rev. 2A, 457, 1951-
Card 2/2

B125YB102
AUTHORS: Laos, E. G., Takibayev, Zh. S.
TITLE: Transverse momentum distribution of mesons in high-energy
showers
SOURCE: Akademiya nauk Kazakhskoy SSR. Insbitut yadernoy fiziki.
Trudy. v. 3, 1960. Vzaimodeystviye vysokoenergichnykh chastits
s atomnymi yadrami, 89-99 .
TEXT: The present paper gives a systematic classification of the transverse
momenta following from various theories of multiple meson production at
high energies and from various phenomenological schemes. According to the
hydrodynamic theory of L. D. Landau (Izv. All SSSR, seriya fiz., 17, 51,
1953), the formulas
exp + L2 - I +'exp (- 2),)
dN C2 14 1- 6 31
- ~dp ;, rc, -.7f 2-exp(-% - (I + exp 24))
S/70 6o/oO3/'000/005/013
Card 1/4,

8/707/60/003/000/005/013
Transverse momentum distribution ... B125/B102
e
x _ 6 -3 If Q
P[ +
1 + exp (- 24) 2 (4)
and Fig. 1 hold for the meson distribution on transverse momenta. M and -~i
are the nucleon and pion masses respectively. The law of the conservation
of momentum is satisfied neither by the Fermi theory nor by Landau's
hydrodynamic, theory, as practically all values of the inelasticity
coefficient disagree with experimental data; The part of mesons with large
transverse momenta is consid-,.ably larger than it is in reality. According
to the Fermi theory, the distribution
+1
dN 71.P1 +
-,Vdp a (I y') dy d7)
-f (p) - , (7)
CXP IP-L
I+P 2
rAe a 2,413 it (P) P1, P PTI
Card 2/6

S/707/60/003/000/005/013
Transverse morientum distribution ... B125/B102
shown in Fig. 2 for yc = 10 and for various values of the inelasticity
coefficient, s found at high energies and not as predicted (3) and (4).
The Fermi theory (takinG into account the conservation of momentum) and
the Landau theory give correctly the anisotropy of the angular distribution
of mesons produced in high-energy nucleon-nucleon collisions. But both theories
probably give a much too hard energy distribution of the mesons produced
and hence incorrect transverse momentum distributions. 'With the Bose
distribution of pions, a transverse momentum distribution is obtained
which depends on the critical temperature (T crit at which the system
begins to disintegrate). On the condition of monoenergetic mesons in the
center Of MaS13 System, the distribution
P.L3n 2 P:L
7 ;'0-,1011 ev B000060
nucleons in the tunnel is found on the basis of experimental data. By
comparing these values with values obtained theoretically, a conclusion
is drawn as to the applicability of the following theories: 1) The
hydrodynamic theory by Landau, extended by S. Z. Relenlkiv and G.
Milekhin (qef. 12). Equations are written down for the total number N of
Generated particles and, on the assumption of the shower consisting only
of pions and muons, equations are written down for ns. 2) Heisenberg's
theory in a derived form, on the assumption of the primary nucleon
undergoing nonelastic collisions with a nucleon or nucleus (Pig. 1)
Equation (11) is given for the ratio of the number of KI mesons to ;he
total number of charged K and n mesons, and Fig. 2 illustrates this ratio
for n,n-co-Jisions and for collisions with a 7-nucleon tunnel as a
function of the Lorentz factor y.. Table 1 supplies data for the energy,
y. and Kn of two showers of the type 20 + 12(p) and la + 11(p). The
author concludes from the analysis made that in the case of E ~,1011 ev
none of thE- theories examined gives a good agreement between the
distributic-n of the numbe-- of showers along the tunnel and the
distributic,n which is to be expected in the photoemulsion. Landau's
Card 2/3

83762
An Analysie of the Nuclear Interactions in S/056/60/039/003/012/045
Photoemulsion for Nucleons With E >/ 1011 ev BO04/B060
hydrodynamic theory yields much too great a number of collisions
(N,IN2 = 1.8) with large tunnels; Heisenberg's theory extended to
nucleon-nucleus collisions yields much too low a number (N,IN2 = 0-3),
while an expectation of NjIN2 = 0.9 was found for the emulsion. The
author thanks D. I. Chernavskiy for his advice and Zh. S. Takibayev for
having formulated'the problem. There are 4 figures, 1 table, and 25
references: 17 Soviet, 5 US, 1 British, 2 German, 1 Czechoslovakian, and
5 Italian.
ASSOCIATION: Institut yadernoy fiziki Akademii nauk Kazakhskoy SSR
Kazakhskaya SSR)
SUBMITTED: March 17, 1960
Card 3/3

BOGS, E. G.
Cand Phys-Math Sci - (diss) "Study of nuclear interactions of
nucleons in the distribution of transverse imDulses of the
particles generated." Alma-Ata, 1961. 16 pp with diagrams;
(Ministry of Higher and Secondary Specialist-Educatior Kazakh
SSR, Kazakh State Univ imeni S. M. Kirov); 200 copies; price
not given; bibliography on up 113-16 (14 entries); (KL, 7-61 sup,
217)

BOTVIN, V.A. \,TAKIBAYEV., M.S.; CHASNIKOV, I.Ya.; PAVLOVA, N.P.;-BOGS, E.G. -
Study of three-pointed stars resulting from inelastic pn-
interadtions iii a nuclear emulsion at an energy of 9 Bev. Zhur.
eksp.i "teor.fiz. 41 no-4:993--1002 0 161. (MIRA 14: 10)
1. Institut yadernoy fiziki AN Kazakhakoy SSR.
(Photography, Particle track) (Protons) (Neutrons)

39305
3/707/62/005/000/001/(~` I,-
D290/D308
Bobvin, V.k., Takibayev, MS., Chasnikov, 1.Ya.,
Bco5s B.G. and P.Ivlcira, N.111.
Mn-a]:~-.i:3 of some inelastic p-n-interactionn at 9 Bev
R iya nau): Kazakhakoy SSR. Inntitut yadernoy
CE
U
fizilti Trudy. v. 5, Alma-Ata, 1962. Fizi-ka chastA5
vvsokikh energiy. Strulftura yadra, 3-15
~K,T; The authorz ctud.iod in detail the characteristic!~ of
the ~7pcondary particleL 11rom three-ray p-n -inter--- ctions prcduced by
9 Dev protons; the work was carried out becaunne of appreciable diff-
c-rencen in the re~ultr, for such reactions given in the literature.
Nuclear emul3ions typejjj4rjK-p(NIKIFI-R) were used, The aggregate I