NEUTRON FRAGMENTATION IN THE REACTION PN-]PX AT 19 GEV-C

被引：3

作者：

BAKKEN, V

GENNOW, H

LUNDBORG, P

SELLDEN, B

MAKELA, J

PIMIA, M

TUOMINIEMI, JK

SUNDELL, E

机构：

[1] UNIV STOCKHOLM, INST PHYS, S-10691 STOCKHOLM, SWEDEN

[2] UNIV HELSINKI, DEPT HIGH ENERGY PHYS, SF-00290 HELSINKI 29, FINLAND

[3] SWEDISH UNIV ABO, DEPT PHYS, SF-20500 ABO 50, FINLAND

来源：

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS | 1979年 / 51卷 / 02期

关键词：

D O I：

10.1007/BF02775424

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Data on the reaction pn→pX are extracted from a pd experiment in the CERN 2m DBC at 19 GeV/c. The cross-section for neutron fragmentation events with |t|<1 (GeV/c)2 is determined and compared with data at high energies at fixed M x 2 /s and t. We find that the cross-section can be described with the triple-Regge formula taking into account only the pion exchange contributions, i.e. the ππP and ππR terms. A leading-particle effect consistent with the pion exchange model is observed in the longitudinal-momentum distribution of the negative pions in the final state of the reaction pn→pX, when transformed to the rest frame of the recoiling system X. © 1979 Società Italiana di Fisica.

引用

页码：253 / 262

页数：10

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