Cross section and longitudinal single-spin asymmetry A(L) for forward W-+/- -> mu(+/-)nu production in polarized p plus p collisions at root s=510 GeV

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http://hdl.handle.net/10138/246120

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PHENIX Collaboration , Adare , A , Kim , D J , Krizek , F , Novitzky , N & Rak , J 2018 , ' Cross section and longitudinal single-spin asymmetry A(L) for forward W-+/- - > mu(+/-)nu production in polarized p plus p collisions at root s=510 GeV ' , Physical Review D , vol. 98 , no. 3 , 032007 . https://doi.org/10.1103/PhysRevD.98.032007

Title: Cross section and longitudinal single-spin asymmetry A(L) for forward W-+/- -> mu(+/-)nu production in polarized p plus p collisions at root s=510 GeV
Author: PHENIX Collaboration; Adare, A.; Kim, D. J.; Krizek, F.; Novitzky, N.; Rak, J.
Contributor: University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
Date: 2018-08-14
Language: eng
Number of pages: 14
Belongs to series: Physical Review D
ISSN: 2470-0010
URI: http://hdl.handle.net/10138/246120
Abstract: We have measured the cross section and single-spin asymmetries from forward W-+/- -> mu(+/-)nu production in longitudinally polarized p + p collisions at root s = 510 GeV using the PHENIX detector at the Relativistic Heavy Ion Collider. The cross sections are consistent with previous measurements at this collision energy, while the most forward and backward longitudinal single spin asymmetries provide new insights into the sea quark helicities in the proton. The charge of the W bosons provides a natural flavor separation of the participating partons.
Subject: PHENIX
DETECTOR
UPGRADE
114 Physical sciences
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