Polarization of Lambda and Anti-Lambda in 920 GeV Fixed-Target Proton-Nucleus Collisions
| dc.creator | B Collaboration | |
| dc.date | 2006-03-23 | |
| dc.date.accessioned | 2026-07-07T10:28:37Z | |
| dc.date.available | 2026-07-07T10:28:37Z | |
| dc.description | A measurement of the polarization of Lambda and Anti-Lambda baryons produced in pC and pW collisions at sqrt(s)=41.6 GeV has been performed with the HERA-B spectrometer. The measurements cover the kinematic range of 0.6 GeV/c < p_T<1.2 GeV/c in transverse momentum and -0.15<x_F<0.01 in Feynman-x. The polarization results from the two different targets agree within the statistical error. In the combined data set, the largest deviation from zero, +0.054 +- 0.029, is measured for x_F < -0.07. Zero polarization is expected at x_F=0 in the absence of nuclear effects. The polarization results for the Lambda agree with a parametrization of previous measurements which were performed at positive x_F values, where the Lambda polarization is negative. Results of Anti-Lambda polarization measurements are consistent with zero. | |
| dc.description | 11 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0603047 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0603047 | |
| dc.identifier | Phys.Lett.B638:415-421,2006 | |
| dc.identifier | doi:10.1016/j.physletb.2006.05.040 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177510 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Polarization of Lambda and Anti-Lambda in 920 GeV Fixed-Target Proton-Nucleus Collisions | |
| dc.type | text |