Stevens, J. R. (2013) The STAR W program at RHIC. Il nuovo cimento C, 36 (5). pp. 39-42. ISSN 1826-9885
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Abstract
The production of W bosons in polarized p + p collisions at RHIC provides an excellent tool to probe the proton’s sea quark distributions. At leading order W−(+) bosons are produced in ¯u + d ( ¯ d + u) collisions, and parity-violating single-spin asymmetries measured in longitudinally polarized p + p collisions give access to the flavor-separated light quark and antiquark helicity distributions. In this proceedings we report preliminary results for the single-spin asymmetry, AL from data collected in 2012 by the STAR experiment at RHIC with an integrated luminosity of 72 pb−1 at √s = 510 GeV and an average beam polarization of 56%.
| Item Type: | Article |
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| Uncontrolled Keywords: | Protons and neutrons ; Inclusive production with identified leptons, photons, or other nonhadronic particles ; Decays of W bosons ; Decays of Z bosons |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 06 May 2020 16:12 |
| Last Modified: | 06 May 2020 16:12 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/18314 |
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