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dc.creatorPosik, M
dc.date.accessioned2021-02-03T18:28:05Z
dc.date.available2021-02-03T18:28:05Z
dc.date.issued2015-01-01
dc.identifier.issn1824-8039
dc.identifier.doihttp://dx.doi.org/10.34944/dspace/5825
dc.identifier.urihttp://hdl.handle.net/20.500.12613/5843
dc.description.abstract© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). Over the past several years the STAR experiment at RHIC has been contributing to our understanding of the proton structure. Through its instrumentation, STAR is well equipped to measure W → v + e in √s = 500/510 GeV proton-proton collisions at mid-rapidity (-1.1 ≤ η ≤ 1.1). The W cross section ratio (W+/W-) is sensitive to unpolarized u, d, ū, and d quark distributions. At these kinematics, STAR is able to measure the quark distributions near Bjorken-x values of 0.1. The RHIC runs in 2011, 2012 and 2013 at √s = 500/510 GeV saw a significant increase in delivered luminosity from previous years. This resulted in a total data sample being collected of about 352 pb-1 of integrated luminosity. The increased statistics will lead to a higher precision measurement of the W+/W- cross section ratio than was previously measured by STAR's 2009 run, as well as allow for a measurement of its η dependence at mid-rapidity. Presented here is an update of the W cross section ratio analysis from the STAR 2011, 2012 and 2013 runs.
dc.format.extent214-
dc.relation.haspartProceedings of Science
dc.relation.isreferencedbySissa Medialab
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectnucl-ex
dc.subjectnucl-ex
dc.titleConstraining sea quark distributions through W<sup>±</sup> cross section ratios measured at STAR
dc.typeArticle
dc.type.genreConference Proceeding
dc.relation.doi10.22323/1.297.0214
dc.ada.noteFor Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.edu
dc.date.updated2021-02-03T18:28:02Z
refterms.dateFOA2021-02-03T18:28:05Z


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