# Angular coefficients of Z bosons produced in pp collisions at $\sqrt{s}$ = 8 TeV and decaying to $\mu^{+}\mu^{−}$ as a function of transverse momentum and rapidity

CMS Collaboration; Khachatryan, V; Sirunyan, A M; Tumasyan, A; Amsler, C; Canelli, F; Chiochia, V; Kilminster, B; Hreus, T; Hinzmann, A; De Cosa, A; Lange, C; Ngadiuba, J; Pinna, D; Robmann, P; Ronga, F J; Taroni, S; Yang, Y; et al (2015). Angular coefficients of Z bosons produced in pp collisions at $\sqrt{s}$ = 8 TeV and decaying to $\mu^{+}\mu^{−}$ as a function of transverse momentum and rapidity. Physics Letters B, 750:154-175.

## Abstract

Measurements of the five most significant angular coefficients, $A_0$ through $A_4$ , for $Z$ bosons produced in $pp$ collisions at $\sqrt{s}$=8 TeV and decaying to $\mu^{+}\mu^{−}$ are presented as a function of the transverse momentum and rapidity of the Z boson. The integrated luminosity of the dataset collected with the CMS detector at the LHC corresponds to 19.7 $fb^{−1}$ . These measurements provide comprehensive information about the $Z$ boson production mechanisms, and are compared to the QCD predictions at leading order, next-to-leading order, and next-to-next-to-leading order in perturbation theory.

## Abstract

Measurements of the five most significant angular coefficients, $A_0$ through $A_4$ , for $Z$ bosons produced in $pp$ collisions at $\sqrt{s}$=8 TeV and decaying to $\mu^{+}\mu^{−}$ are presented as a function of the transverse momentum and rapidity of the Z boson. The integrated luminosity of the dataset collected with the CMS detector at the LHC corresponds to 19.7 $fb^{−1}$ . These measurements provide comprehensive information about the $Z$ boson production mechanisms, and are compared to the QCD predictions at leading order, next-to-leading order, and next-to-next-to-leading order in perturbation theory.

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Item Type: Journal Article, refereed, original work 07 Faculty of Science > Physics Institute 530 Physics English 14 April 2015 16 Feb 2016 15:29 08 Dec 2017 18:15 Elsevier 0370-2693 Publisher DOI. An embargo period may apply. https://doi.org/10.1016/j.physletb.2015.08.061 http://arxiv.org/abs/1504.03512v2