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Measurement of exclusive Upsilon photoproduction from protons in pPb collisions at root sNN=5.02 Tev

Sirunyan, AM and Tumasyan, A and Adam, W and Ambrogi, F (2019) Measurement of exclusive Upsilon photoproduction from protons in pPb collisions at root sNN=5.02 Tev. In: European Physical Journal C, 79 (3).

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Official URL: https://doi.org/10.1140/epjc/s10052-019-6774-8

Abstract

The exclusive photoproduction of (nS) meson states from protons, (nS) p (with n = 1, 2, 3), is studied in ultraperipheral pPb collisions at a centre-of-mass energy per nucleon pair of The measurement is performed using the decay mode, with data collected by the CMS experiment corresponding to an integrated luminosity of 32.6 nb(-1). Differential cross sections as functions of the nS) transverse momentum squared and rapidity y, are presented. The 1S) photoproduction cross section is extracted in the rapidity range < 2.2, which corresponds to photon-proton centre-of-mass energies in the range 91 W < 826 GeV. The data are compared to theoretical predictions based on perturbative quantum chromodynamics and to previous measurements

Item Type: Journal Article
Additional Information: copyright for this article belongs to SPRINGER
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Depositing User: Id for Latest eprints
Date Deposited: 03 Jun 2019 11:06
Last Modified: 03 Jun 2019 11:06
URI: http://eprints.iisc.ac.in/id/eprint/62826

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