Precision Measurement of the Longitudinal Double-Spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at root s=200 GeV | |
Adamczyk, L.1; Adkins, J. K.23; Agakishiev, G.21; Aggarwal, M. M.35; Ahammed, Z.53; Alekseev, I.19; Alford, J.22; Anson, C. D.32; Aparin, A.21,37; Arkhipkin, D.4 | |
刊名 | PHYSICAL REVIEW LETTERS |
2015-08-26 | |
卷号 | 115页码:7 |
ISSN号 | 0031-9007 |
DOI | 10.1103/PhysRevLett.115.092002 |
英文摘要 | We report a new measurement of the midrapidity inclusive jet longitudinal double-spin asymmetry, A(LL), in polarized pp collisions at center-of-mass energy root s = 200 GeV. The STAR data place stringent constraints on polarized parton distribution functions extracted at next-to-leading order from global analyses of inclusive deep-inelastic scattering (DIS), semi-inclusive DIS, and RHIC pp data. The measured asymmetries provide evidence at the 3 sigma level for positive gluon polarization in the Bjorken-x region x > 0.05. |
资助项目 | RHIC Operations Group and RCF at BNL ; NERSC Center at LBNL ; KISTI Center in Korea ; Open Science Grid consortium ; Offices of NP and HEP within the U.S. DOE Office of Science ; U.S. NSF ; CNRS/IN2P3 ; FAPESP CNPq of Brazil ; Ministry of Education and Science of the Russian Federation ; NNSFC ; CAS ; MoST ; MoE of China ; Korean Research Foundation ; GA and MSMT of the Czech Republic ; FIAS of Germany ; DAE ; DST ; CSIR of India ; National Science Centre of Poland ; National Research Foundation[NRF-2012004024] ; Ministry of Science, Education and Sports of the Republic of Croatia ; RosAtom of Russia |
WOS关键词 | PARTON DISTRIBUTIONS ; UNCERTAINTIES |
WOS研究方向 | Physics |
语种 | 英语 |
出版者 | AMER PHYSICAL SOC |
WOS记录号 | WOS:000360065900003 |
资助机构 | RHIC Operations Group and RCF at BNL ; NERSC Center at LBNL ; KISTI Center in Korea ; Open Science Grid consortium ; Offices of NP and HEP within the U.S. DOE Office of Science ; U.S. NSF ; CNRS/IN2P3 ; FAPESP CNPq of Brazil ; Ministry of Education and Science of the Russian Federation ; NNSFC ; CAS ; MoST ; MoE of China ; Korean Research Foundation ; GA and MSMT of the Czech Republic ; FIAS of Germany ; DAE ; DST ; CSIR of India ; National Science Centre of Poland ; National Research Foundation ; Ministry of Science, Education and Sports of the Republic of Croatia ; RosAtom of Russia |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.186/handle/113462/40438] |
专题 | 中国科学院近代物理研究所 |
通讯作者 | Adamczyk, L. |
作者单位 | 1.AGH Univ Sci & Technol, PL-30059 Krakow, Poland 2.Argonne Natl Lab, Argonne, IL 60439 USA 3.Univ Birmingham, Birmingham, W Midlands, England 4.Brookhaven Natl Lab, Upton, NY 11973 USA 5.Univ Calif Berkeley, Berkeley, CA 94720 USA 6.Univ Calif Davis, Davis, CA 95616 USA 7.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 8.Univ Estadual Campinas, BR-05314970 Sao Paulo, Brazil 9.Cent China Normal Univ HZNU, Wuhan 430079, Peoples R China 10.Univ Illinois, Chicago, IL 60607 USA |
推荐引用方式 GB/T 7714 | Adamczyk, L.,Adkins, J. K.,Agakishiev, G.,et al. Precision Measurement of the Longitudinal Double-Spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at root s=200 GeV[J]. PHYSICAL REVIEW LETTERS,2015,115:7. |
APA | Adamczyk, L..,Adkins, J. K..,Agakishiev, G..,Aggarwal, M. M..,Ahammed, Z..,...&Zyzak, M..(2015).Precision Measurement of the Longitudinal Double-Spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at root s=200 GeV.PHYSICAL REVIEW LETTERS,115,7. |
MLA | Adamczyk, L.,et al."Precision Measurement of the Longitudinal Double-Spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at root s=200 GeV".PHYSICAL REVIEW LETTERS 115(2015):7. |
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