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

页码：447 / 452

页数：6

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