Λ0 polarization in 800-GeV/cpp→pf (Λ0K+) -: art. no. 061801

被引：15

作者：

Félix, J ^{[1
]}

Berisso, MC

Christian, DC

Gara, A

Gottschalk, EE

Gutiérrez, G

Hartouni, EP

Knapp, BC

Kreisler, MN

Lee, S

Markianos, K

Moreno, G

Reyes, MA

Sosa, M

Wang, MHLS

Wehmann, A

Wesson, D

机构：

[1] Univ Guanajuato, Guanajuato, Mexico

[2] Univ Massachusetts, Amherst, MA 01003 USA

[3] Fermilab Natl Accelerator Lab, Batavia, IL USA

[4] Columbia Univ, Nevis Lab, New York, NY USA

[5] Lawrence Livermore Natl Lab, Livermore, CA USA

[6] Univ Michoacana, Morelia, Michoacan, Mexico

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.88.061801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report results from a study of Lambda(0) polarization in the exclusive reaction pp --> p(f) (Lambda(0)K(+)) at 800-GeV/c. We observe a dependence of the polarization on the Lambda(0)K(+) invariant mass with large (+71%) positive polarization at small mass (1.63-GeV/c(2)) and large (-43%) negative polarization at large mass (2.75-GeV/c(2)). This observation confirms the result of the CERN ISR R608 experiment and extends the range over which the effect is observed. The strong dependence of the polarization on the Lambda(0)K(+) invariant mass suggests that the origin of the polarization is closely related to the production dynamics of the diffractively produced Lambda(0)K(+) system.

引用

页数：4

共 50 条

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