Longitudinal double-spin asymmetries for dijet production at intermediate pseudorapidity in polarized pp collisions at s =200 GeV
J Adam , Deryk Anderson , Fu-Kuo Chang , Xin-Nan Chen , Xin-Nan Chen , J Cheng , Y. Guo , Shi Huang , Hong-Zhong HUANG , Wei-Te Huang , Daniel Kikoła , Adam Kisiel , Leszek Kosarzewski , SS. Kumar , W. Li , Fengwei Liu , Pengfei Liu , Lin Ma , Mayer J. R. R. , Bernd Page , Jan Pluta , Joanna Porter-Sobieraj , J. Schambach , R Sikora , S. Tripathy , Cheng-Zhong Xu , J. W. Xu , S. Yang , Wuqiang Q Yang , Hanna Zbroszczyk , Liren Zhang , Jian Zhang , Jian Zhang , J Zhao , X. Zhu , Andrzej Lipiec , Sebastian Siejka , Piotr Szymański
AbstractWe present the first measurements of the longitudinal double-spin asymmetry ALL for dijets with at least one jet reconstructed within the pseudorapidity range 0.8<η<1.8. The dijets were measured in polarized pp collisions at a center-of-mass energy s=200 GeV. Values for ALL are determined for several distinct event topologies, defined by the jet pseudorapidities, and span a range of parton momentum fraction x down to x∼0.01. The measured asymmetries are found to be consistent with the predictions of global analyses that incorporate the results of previous RHIC measurements. They will provide new constraints on Δg(x) in this poorly constrained region when included in future global analyses.
|Collective author||L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, N.N. Ajita.....|
|Total number of authors||349|
|Journal series||Physical Review D, ISSN 2470-0010, e-ISSN 2470-0029, (0 pkt)|
|Score|| = 0.0, 11-12-2018, ArticleFromJournal|
= 5.0, 11-12-2018, ArticleFromJournal - czasopismo zagraniczne spoza list
|Publication indicators||= 0; : 2017 = 1.058; : 2017 = 4.394 (2) - 2017=3.797 (5)|
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