Longitudinal double-spin asymmetries for dijet production at intermediate pseudorapidity in polarized <i>pp</i> collisions at √s=200 GeV



Adam, J, Adamczyk, L, Adams, JR, Adkins, JK, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Ajitanand, NN, Alekseev, I, Anderson, DM
et al (show 339 more authors) (2018) Longitudinal double-spin asymmetries for dijet production at intermediate pseudorapidity in polarized <i>pp</i> collisions at √s=200 GeV. PHYSICAL REVIEW D, 98 (3). 032011-.

Access the full-text of this item by clicking on the Open Access link.

Abstract

We present the first measurements of the longitudinal double-spin asymmetry $A_{LL}$ for dijets with at least one jet reconstructed within the pseudorapidity range $0.8 < \eta < 1.8$. The dijets were measured in polarized $pp$ collisions at a center-of-mass energy $\sqrt{s}$ = 200 GeV. Values for $A_{LL}$ are determined for several distinct event topologies, defined by the jet pseudorapidities, and span a range of parton momentum fraction $x$ down to $x \sim$ 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 $\Delta g(x)$ in this poorly constrained region when included in future global analyses.

Item Type: Article
Uncontrolled Keywords: hep-ex, hep-ex, nucl-ex
Depositing User: Symplectic Admin
Date Deposited: 07 May 2019 10:15
Last Modified: 10 Oct 2023 23:25
DOI: 10.1103/PhysRevD.98.032011
Open Access URL: https://doi.org/10.1103/PhysRevD.98.032011
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3040046