Measurement of exclusive Υ photoproduction from protons in p Pb collisions at √sNN=5.02TeV

CMS Collaboration

doi:10.1140/epjc/s10052-019-6774-8

Measurement of exclusive Υ photoproduction from protons in p Pb collisions at √sNN=5.02TeV

CMS Collaboration

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Abstract

The exclusive photoproduction of Υ (nS) meson states from protons, γp→Υ(nS)p (with n = 1 , 2 , 3), is studied in ultraperipheral p Pb collisions at a centre-of-mass energy per nucleon pair of sNN=5.02TeV. The measurement is performed using the Υ (nS) → μ⁺μ^- decay mode, with data collected by the CMS experiment corresponding to an integrated luminosity of 32.6nb-1. Differential cross sections as functions of the Υ (nS) transverse momentum squared pT2, and rapidity y, are presented. The Υ (1 S) photoproduction cross section is extracted in the rapidity range | y| < 2.2 , which corresponds to photon–proton centre-of-mass energies in the range 91<Wγp<826GeV. The data are compared to theoretical predictions based on perturbative quantum chromodynamics and to previous measurements.

Original language	English (US)
Article number	277
Journal	European Physical Journal C
Volume	79
Issue number	3
DOIs	https://doi.org/10.1140/epjc/s10052-019-6774-8
State	Published - Mar 1 2019

All Science Journal Classification (ASJC) codes

Engineering (miscellaneous)
Physics and Astronomy (miscellaneous)

Keywords

CMS
UPC
Y
pPb
photoproduction

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10.1140/epjc/s10052-019-6774-8

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@article{9d396b910e9e4d36a403204e77227e47,

title = "Measurement of exclusive Υ photoproduction from protons in p Pb collisions at √sNN=5.02TeV",

abstract = "The exclusive photoproduction of Υ (nS) meson states from protons, γp→Υ(nS)p (with n = 1 , 2 , 3), is studied in ultraperipheral p Pb collisions at a centre-of-mass energy per nucleon pair of sNN=5.02TeV. The measurement is performed using the Υ (nS) → μ+μ- decay mode, with data collected by the CMS experiment corresponding to an integrated luminosity of 32.6nb-1. Differential cross sections as functions of the Υ (nS) transverse momentum squared pT2, and rapidity y, are presented. The Υ (1 S) photoproduction cross section is extracted in the rapidity range | y| < 2.2 , which corresponds to photon–proton centre-of-mass energies in the range 91",

keywords = "CMS, UPC, Y, pPb, photoproduction",

author = "{CMS Collaboration} and Sirunyan, {A. M.} and A. Tumasyan and W. Adam and F. Ambrogi and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and {Del Valle}, {A. Escalante} and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, {V. M.} and J. Grossmann and J. Hrubec and M. Jeitler and A. K{\"o}nig and N. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Madlener and I. Mikulec and E. Pree and N. Rad and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and D. Spitzbart and A. Taurok and W. Waltenberger and J. Wittmann and Wulz, {C. E.} and M. Zarucki and V. Chekhovsky and V. Mossolov and Gonzalez, {J. Suarez} and {De Wolf}, {E. A.} and {Di Croce}, D. and X. Janssen and J. Lauwers and J. D{\textquoteright}Hondt and {De Clercq}, J. and L. Moreels and D. Lange and I. Ojalvo and J. Olsen and D. Stickland",

note = "Publisher Copyright: {\textcopyright} 2019, CERN for the benefit of the CMS collaboration.",

year = "2019",

month = mar,

day = "1",

doi = "10.1140/epjc/s10052-019-6774-8",

language = "English (US)",

volume = "79",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "3",

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TY - JOUR

T1 - Measurement of exclusive Υ photoproduction from protons in p Pb collisions at √sNN=5.02TeV

AU - CMS Collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Ambrogi, F.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Del Valle, A. Escalante

AU - Flechl, M.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Grossmann, J.

AU - Hrubec, J.

AU - Jeitler, M.

AU - König, A.

AU - Krammer, N.

AU - Krätschmer, I.

AU - Liko, D.

AU - Madlener, T.

AU - Mikulec, I.

AU - Pree, E.

AU - Rad, N.

AU - Rohringer, H.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Spanring, M.

AU - Spitzbart, D.

AU - Taurok, A.

AU - Waltenberger, W.

AU - Wittmann, J.

AU - Wulz, C. E.

AU - Zarucki, M.

AU - Chekhovsky, V.

AU - Mossolov, V.

AU - Gonzalez, J. Suarez

AU - De Wolf, E. A.

AU - Di Croce, D.

AU - Janssen, X.

AU - Lauwers, J.

AU - D’Hondt, J.

AU - De Clercq, J.

AU - Moreels, L.

AU - Lange, D.

AU - Ojalvo, I.

AU - Olsen, J.

AU - Stickland, D.

PY - 2019/3/1

Y1 - 2019/3/1

N2 - The exclusive photoproduction of Υ (nS) meson states from protons, γp→Υ(nS)p (with n = 1 , 2 , 3), is studied in ultraperipheral p Pb collisions at a centre-of-mass energy per nucleon pair of sNN=5.02TeV. The measurement is performed using the Υ (nS) → μ+μ- decay mode, with data collected by the CMS experiment corresponding to an integrated luminosity of 32.6nb-1. Differential cross sections as functions of the Υ (nS) transverse momentum squared pT2, and rapidity y, are presented. The Υ (1 S) photoproduction cross section is extracted in the rapidity range | y| < 2.2 , which corresponds to photon–proton centre-of-mass energies in the range 91

AB - The exclusive photoproduction of Υ (nS) meson states from protons, γp→Υ(nS)p (with n = 1 , 2 , 3), is studied in ultraperipheral p Pb collisions at a centre-of-mass energy per nucleon pair of sNN=5.02TeV. The measurement is performed using the Υ (nS) → μ+μ- decay mode, with data collected by the CMS experiment corresponding to an integrated luminosity of 32.6nb-1. Differential cross sections as functions of the Υ (nS) transverse momentum squared pT2, and rapidity y, are presented. The Υ (1 S) photoproduction cross section is extracted in the rapidity range | y| < 2.2 , which corresponds to photon–proton centre-of-mass energies in the range 91

KW - CMS

KW - UPC

KW - Y

KW - pPb

KW - photoproduction

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U2 - 10.1140/epjc/s10052-019-6774-8

DO - 10.1140/epjc/s10052-019-6774-8

M3 - Article

C2 - 31007586

AN - SCOPUS:85063495613

SN - 1434-6044

VL - 79

JO - European Physical Journal C

JF - European Physical Journal C

IS - 3

M1 - 277

ER -

Measurement of exclusive Υ photoproduction from protons in p Pb collisions at √sNN=5.02TeV

Abstract

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