ANTIPROTON PRODUCTION IN 14.6 A GEV/C SI+A COLLISIONS

被引：25
|
作者：
ABBOTT, T
AKIBA, Y
BEAVIS, D
BLOOMER, MA
BOND, PD
CHASMAN, C
CHEN, Z
CHU, YY
COLE, BA
COSTALES, JB
CRAWFORD, HJ
CUMMING, JB
DEBBE, R
ENGELAGE, J
FUNG, SY
GRODZINS, L
GUSHUE, S
HAMAGAKI, H
HANSEN, O
HAYANO, R
HAYASHI, S
HOMMA, S
HUANG, HZ
IKEDA, Y
JURICIC, I
KANG, J
KAUFMAN, S
KIMURA, K
KITAMURA, K
KURITA, K
LEDOUX, RJ
LEVINE, MJ
MIAKE, Y
MORSE, RJ
MOSKOWITZ, B
NAGAMIYA, S
OLNESS, J
PARSONS, CG
REMSBERG, LP
ROEHRICH, D
SAKURAI, H
SARABURA, M
SHOR, A
STANKUS, P
STEADMAN, SG
STEPHANS, GSF
SUGITATE, T
TANAKA, M
TANNENBAUM, MJ
TORIKOSHI, M
机构：
[1] UNIV CALIF,RIVERSIDE,CA 92507
[2] UNIV TOKYO,DEPT PHYS,TOKYO 133,JAPAN
[3] NEVIS LABS,IRVINGTON,NY 10533
[4] UNIV TOKYO,INST NUCL STUDY,TANASHI,TOKYO 188,JAPAN
[5] BROOKHAVEN NATL LAB,DEPT AGS,UPTON,NY 11973
[6] BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973
[7] BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973
[8] MIT,CAMBRIDGE,MA 02139
[9] UNIV CALIF BERKELEY,SPACE SCI LAB,BERKELEY,CA 94720
[10] COLUMBIA UNIV,NEW YORK,NY 10027
[11] ARGONNE NATL LAB,DIV PHYS,ARGONNE,IL 60439
[12] KYUSHU UNIV,FUKUOKA 812,JAPAN
[13] HIROSHIMA UNIV,DEPT PHYS,HIROSHIMA 730,JAPAN
来源：
PHYSICS LETTERS B | 1991年 / 271卷 / 3-4期
关键词：
D O I：
10.1016/0370-2693(91)90116-8
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Antiproton production cross sections have been measured for minimum bias and central Si + Al and Si + Au collisions at 14.6 A GeV/c. The data presented cover the range of transverse momentum from 0.3 to 1.2 GeV/c and lab rapidities from 1.1 to 1.7 units. The relative pBAR/pi- and pBAR/K- yields are found to be the smallest for the heaviest system measured, central Si + Au collisions. For these collisions, the pBAR/pi- ratio, determined from integrated yields for 1.1 less-than-or-equal-to y less-than-or-equal-to 1.7, is (0.84 +/- 0.07) 10(-3). In the same rapidity interval, the average antiproton inverse m perpendicular-to slope is 141 +/- 14 MeV for central Si + Al and central Si + Au collisions.
引用
收藏
页码：447 / 452
页数：6
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