Počet záznamov: 1
Direct reactions with pion production in nucleus-nucleus collisions
SYS 0303715 LBL -----naa--22--------450- 005 20240313124000.4 014 $a A1993KU94800020 $2 WOS CC. SCIE 017 70
$2 DOI 100 $a 20211124d1993 m y slo 03 ba 101 0-
$a eng 102 $a US 200 1-
$a Direct reactions with pion production in nucleus-nucleus collisions $f D. N. Voskresenskii, E. E. Kolomeitsev 330 $a Various processes of pion production in nuclear matter at characteristic temperatures T much less than m(pi) are analyzed. It is shown that the pions are produced mainly in NN --> NN(pi) reactions. Taking into account the modification of the NN interaction in nucelar matter, probabilities and differential cross sections of production of pi- mesons in direct NN --> NNpi- reactions are calculated. It is shown that at incident-pion momenta q approximately 2m(pi) processes with pion production via DELTA-resonance intermediate states dominate. From a comparison of the results of the calculation with experimental data on pion production in nucleus-nucleus collisions it is concluded that piN absorption is strong and increases with increasing temperature and density of the nuclear matter. At the initial stage of development of the nuclear fireball the pions are confined inside the system at practically all momenta. Soft (q less-than-or-similar-to m(pi)) pions are emitted at the intermediate stage of expansion of the nuclear fireball, and harder pions are released together with nucleons at the final stage of breakup of the fireball. 463 -1
$1 001 umb_un_cat*0303744 $1 011 $a 1063-7788 $1 011 $a 1562-692X $1 200 1 $a Physics of Atomic Nuclei $v Vol. 56, no. 2 (1993), pp. 252-259 $1 210 $a New York $c Pleiades Publishing $d 1993 606 0-
$3 umb_un_auth*0221930 $a Pion-production 606 0-
$3 umb_un_auth*0221975 $a nucleus-nucleus collisions 608 $3 umb_un_auth*0273282 $a články $X journal articles 700 -1
$3 umb_un_auth*0160605 $a Voskresensky $b Dmitri $4 070 $9 50 701 -1
$3 umb_un_auth*0131258 $a Kolomeitsev $b Evgeni E. $4 070 $9 50 $f 1970- 801 $a SK $b BB301 $g AACR2 $9 unimarc sk 856 $u https://www.webofscience.com/wos/woscc/full-record/WOS:A1993KU94800020?UT=WOS:A1993KU94800020&SID=F2NQ63yHHH7e7pq8wa3 $a Link do databázy WoS T85 $x existuji fulltexy
Počet záznamov: 1