{"created":"2021-03-01T07:32:50.653970+00:00","id":52296,"links":{},"metadata":{"_buckets":{"deposit":"5982ccb0-1f2d-4683-9e43-417a6db85435"},"_deposit":{"id":"52296","owners":[],"pid":{"revision_id":0,"type":"depid","value":"52296"},"status":"published"},"_oai":{"id":"oai:tsukuba.repo.nii.ac.jp:00052296","sets":["3:62:5598:84"]},"author_link":["115393","160524"],"item_1644910766877":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"5","bibliographicPageStart":"051102","bibliographicVolumeNumber":"99","bibliographic_titles":[{"bibliographic_title":"Physical review D","bibliographic_titleLang":"en"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We report new STAR measurements of the single-spin asymmetries AL for W+ and W? bosons produced in polarized proton-proton collisions at √s=510??GeV as a function of the decay-positron and decay-electron pseudorapidity. The data were obtained in 2013 and correspond to an integrated luminosity of 250??pb?1. The results are combined with previous results obtained with 86??pb?1. A comparison with theoretical expectations based on polarized lepton-nucleon deep-inelastic scattering and prior polarized proton-proton data suggests a difference between the  ̄u and  ̄d quark helicity distributions for 0.05