POLARIZATION OF LAMBDA-PRODUCED AND (LAMBDA)OVER-BAR-PRODUCED BY 800-GEV PROTONS

被引：98

作者：

RAMBERG, EJ

BOCK, GJ

COLEMAN, R

CRISLER, M

ENAGONIO, J

FORD, R

HSIUNG, YB

JENSEN, DA

TSCHIRHART, R

ARISAKA, K

ROBERTS, D

SLATER, W

WEAVER, M

BRIERE, RA

CHEU, E

HARRIS, DA

KROLAK, P

MAKOFF, G

MCFARLAND, KS

ROODMAN, A

SCHWINGENHEUER, B

SOMALWAR, S

WAH, YW

WINSTEIN, B

WINSTON, R

BARKER, AR

SWALLOW, EC

COLLINS, EM

GOLLIN, GD

NAKAYA, T

YAMANAKA, T

GU, P

HAAS, P

HOGAN, WP

KIM, S

MATTHEWS, JN

MYUNG, SS

SCHNETZER, S

THOMSON, G

ZOU, Y

机构：

[1] UNIV CALIF LOS ANGELES, DEPT PHYS, LOS ANGELES, CA 90024 USA

[2] UNIV CHICAGO, ENRICO FERMI INST, CHICAGO, IL 60637 USA

[3] UNIV CHICAGO, DEPT PHYS, CHICAGO, IL 60637 USA

[4] UNIV COLORADO, DEPT PHYS, BOULDER, CO 80309 USA

[5] UNIV ILLINOIS, DEPT PHYS, URBANA, IL 61801 USA

[6] OSAKA UNIV, DEPT PHYS, TOYONAKA, OSAKA 560, JAPAN

[7] RUTGERS STATE UNIV, DEPT PHYS, PISCATAWAY, NJ 08855 USA

[8] ELMHURST COLL, DEPT PHYS, ELMHURST, IL 60126 USA

来源：

PHYSICS LETTERS B | 1994年 / 338卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0370-2693(94)91397-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have measured the polarization of Lambda and <(Lambda)over bar> hyperons produced by 800 GeV protons on a Be target at a fixed targeting angle of 4.8 mrad. Comparison with previous data at 400 GeV production energy and twice the targeting angle shows no significant energy dependence for the Lambda polarization. This is in striking contrast to the energy dependence found for Sigma(+) and Xi(-) polarizations. We find no evidence for <(Lambda)over bar> polarization at 800 GeV.

引用

页码：403 / 408

页数：6

共 14 条

[1] PRECISE MEASUREMENT OF THE SIGMA+ MAGNETIC-MOMENT [J].

ANKENBRANDT, C ;

BERGE, JP ;

BRENNER, AE ;

BUTLER, J ;

DOROBA, K ;

ELIAS, JE ;

LACH, J ;

LAURIKAINEN, P ;

MACLACHLAN, J ;

MARRINER, J ;

MCCLIMENT, E ;

ANDERSON, EW ;

BREAKSTONE, A ;

CARDELLO, T ;

COOPER, PS ;

TEIG, LJ ;

THRON, JL ;

WAH, YW .

PHYSICAL REVIEW LETTERS, 1983, 51 (10) :863-866

[2] MODELS FOR POLARIZATION ASYMMETRY IN INCLUSIVE HADRON-PRODUCTION [J].

DEGRAND, TA ;

MIETTINEN, HI .

PHYSICAL REVIEW D, 1981, 24 (09) :2419-2427

[3] POLARIZATION OF =- HYPERONS PRODUCED BY 800-GEV PROTONS [J].

DURYEA, J ;

GUGLIELMO, G ;

HELLER, K ;

JOHNS, K ;

SHUPE, M ;

THORNE, K ;

JAMES, C ;

LUK, KB ;

RAMEIKA, R ;

HO, PM ;

LONGO, MJ ;

DIEHL, HT ;

TEIGE, S ;

THOMSON, GB .

PHYSICAL REVIEW LETTERS, 1991, 67 (10) :1193-1196

[4] LAMBDAL-O POLARIZATION IN PROTON-PROTON INTERACTIONS AT SQUARE-ROOT-S=53 AND 62 GEV [J].

ERHAN, S ;

LOCKMAN, W ;

MEDINNIS, M ;

MEYER, T ;

RANDER, J ;

SCHLEIN, P ;

WEBB, R ;

BOEHM, A ;

FOETH, H ;

STAUDE, A ;

ELLIS, R ;

NAROSKA, B ;

STROLIN, P ;

ZSEMBERY, J .

PHYSICS LETTERS B, 1979, 82 (02) :301-304

[5]

HELLER K, 1990, 9TH P INT S HIGH EN, P97

[6]

HIKASA K, 1992, PHYS REV D 2, V45, P1

[7] PRODUCTION POLARIZATION AND MAGNETIC-MOMENT OF XIBAR+ ANTIHYPERONS PRODUCED BY 800-GEV/C PROTONS [J].

HO, PM ;

LONGO, MJ ;

NGUYEN, A ;

LUK, KB ;

JAMES, C ;

RAMEIKA, R ;

DURYEA, J ;

GUGLIELMO, G ;

HELLER, K ;

JOHNS, K ;

DIEHL, HT ;

TEIGE, S ;

THOMSON, GB ;

ZOU, Y .

PHYSICAL REVIEW LETTERS, 1990, 65 (14) :1713-1716

[8]

LACH J, 1991, CONF91200 FERM PREPR

[9] POLARIZATION IN INCLUSIVE-LAMBDA AND LAMBDA-BAR PRODUCTION AT LARGE PT [J].

LUNDBERG, B ;

HANDLER, R ;

PONDROM, L ;

SHEAFF, M ;

WILKINSON, C ;

DWORKIN, J ;

OVERSETH, OE ;

RAMEIKA, R ;

HELLER, K ;

JAMES, C ;

BERETVAS, A ;

CUSHMAN, P ;

DEVLIN, T ;

LUK, KB ;

THOMSON, GB ;

WHITMAN, R .

PHYSICAL REVIEW D, 1989, 40 (11) :3557-3567

[10]

MCFARLAND K, 1994, THESIS U CHICAGO

← 1 2 →