Measurement of the $Z$ boson differential cross section in transverse momentum and rapidity in proton–proton collisions at 8 TeV

CMS Collaboration; Khachatryan, V; Sirunyan, A M; Tumasyan, A; Amsler, C; Canelli, F; Chiochia, V; De Cosa, A; Hinzmann, A; Hreus, T; Kilminster, B; Lange, C; Ngadiuba, J; Pinna, D; Robmann, P; Ronga, F J; Taroni, S; Yang, Y; et al (2015). Measurement of the $Z$ boson differential cross section in transverse momentum and rapidity in proton–proton collisions at 8 TeV. Physics Letters B, 749:187-209.

Abstract

We present a measurement of the $Z$ boson differential cross section in rapidity and transverse momentum using a data sample of pp collision events at a centre-of-mass energy $\sqrt{s}$=8 TeV , corresponding to an integrated luminosity of 19.7 $fb^{−1}$. The $Z$ boson is identified via its decay to a pair of muons. The measurement provides a precision test of quantum chromodynamics over a large region of phase space. In addition, due to the small experimental uncertainties in the measurement the data has the potential to constrain the gluon parton distribution function in the kinematic regime important for Higgs boson production via gluon fusion. The results agree with the next-to-next-to-leading-order predictions computed with the fewz program. The results are also compared to the commonly used leading-order MadGraph and next-to-leading-order powheg generators.

We present a measurement of the $Z$ boson differential cross section in rapidity and transverse momentum using a data sample of pp collision events at a centre-of-mass energy $\sqrt{s}$=8 TeV , corresponding to an integrated luminosity of 19.7 $fb^{−1}$. The $Z$ boson is identified via its decay to a pair of muons. The measurement provides a precision test of quantum chromodynamics over a large region of phase space. In addition, due to the small experimental uncertainties in the measurement the data has the potential to constrain the gluon parton distribution function in the kinematic regime important for Higgs boson production via gluon fusion. The results agree with the next-to-next-to-leading-order predictions computed with the fewz program. The results are also compared to the commonly used leading-order MadGraph and next-to-leading-order powheg generators.

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5 citations in Web of Science®
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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 15:23 05 Apr 2016 20:02 Elsevier 0370-2693 Publisher DOI. An embargo period may apply. https://doi.org/10.1016/j.physletb.2015.07.065 http://arxiv.org/abs/1504.03511 (Organisation)
Permanent URL: https://doi.org/10.5167/uzh-121296

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