A measurement of the transverse polarization of Lambda-hyperons produced in inelastic pN-reactions at 450 GeV proton energy

Citation
V. Fanti et al., A measurement of the transverse polarization of Lambda-hyperons produced in inelastic pN-reactions at 450 GeV proton energy, EUR PHY J C, 6(2), 1999, pp. 265-269
Citations number
20
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL C
ISSN journal
1434-6044 → ACNP
Volume
6
Issue
2
Year of publication
1999
Pages
265 - 269
Database
ISI
SICI code
1434-6044(199901)6:2<265:AMOTTP>2.0.ZU;2-M
Abstract
A study of the polarization of Lambda hyperons produced in inelastic pN rea ctions induced by the 450 CeV proton beam from the CERN SPS has been perfor med with the NA48 detector. The Lambda hyperons were detected at a fixed an gle of 4.2 mrad in the momentum range from 50 GeV/c to 200 GeV/c. The polar ization changes from -0.053 +/- 0.034 to -0.298 +/- 0.074 for a transverse momentum range of the Lambda between 0.28 GeV/c and 0.86 GeV/c. The <(Lambd a)over bar> polarization is consistent with zero.