MEASUREMENT OF THE POLARIZATION OF LAMBDA(0), (LAMBDA)OVER-BAR-(0), SIGMA(+) AND XI(-) PRODUCED IN A SIGMA(-)-BEAM OF 330-GEV/C

被引：32

作者：

ADAMOVICH, ML

ALBERTSON, E

ALEXANDROV, YA

BARBERIS, D

BERAT, C

BEUSCH, W

BRENZINGER, KH

BRONS, S

BRUCKNER, W

BRUNENGO, A

BUENERD, M

CHARIGNON, F

CHAUVIN, J

CHUDAKOV, EA

DAMERI, M

DROPMANN, F

ENGELFRIED, J

FALLER, F

FRENCH, BR

GERASSIMOV, SG

GODBERSEN, M

GRAFSTROM, P

HOSTACHY, JY

HURST, RB

KALLAKOWSKY, TH

KLUTH, S

LAUBER, HM

LENNERT, P

LJUNGFELT, S

MARTENS, K

MARTIN, PH

MICHAELS, R

MULLER, U

NEWSOM, C

OSCULATI, B

PAUL, S

POVH, B

REYCAMPAGNOLLE, M

RIESEBERG, H

ROHRICH, K

ROSNER, G

ROSSI, L

RUDOLPH, H

SCHEEL, C

SCHMITT, L

SIEBERT, HW

SIMON, A

TROMBINI, A

TOUILLON, R

VOLKEMER, B

机构：

[1] CERN,CH-1211 GENEVA 23,SWITZERLAND

[2] UNIV GENOA,IST NAZL FIS NUCL,I-16146 GENOA,ITALY

[3] UNIV GRENOBLE 1,IN2P3,ISN,F-38026 GRENOBLE,FRANCE

[4] MAX PLANCK INST KERNPHYS,D-69117 HEIDELBERG,GERMANY

[5] UNIV HEIDELBERG,INST PHYS,D-69120 HEIDELBERG,GERMANY

[6] UNIV MAINZ,INST KERNPHYS,D-55099 MAINZ,GERMANY

来源：

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI | 1995年 / 350卷 / 04期

关键词：

D O I：

10.1007/BF01291194

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The polarization of Lambda(0), ($) over bar Lambda(0), Sigma(+) and Xi(-) inclusively produced in Sigma(-) induced interactions at 330 GeV has been measured in the experiment WA89 at CERN. This is the first measurement of polarization of baryons produced by an unpolarized hyperon beam. No polarization of ($) over bar Lambda(0) is observed, as was also the case in proton beam data. At transverse momenta of about 1 GeV/c Lambda(0) and Sigma(+) show little polarization, significantly lower than in the proton beam data, while Xi(-) have a polarization comparable to the polarization of Lambda(0) produced in proton beams.

引用

页码：379 / 386

页数：8

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