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Measurement of exclusive Y photoproduction from protons in pPb collisions at ?sNN=5.02TeV

Abstract: The exclusive photoproduction of ?(nS) meson states from protons, ?p??(nS)p (with n=1,2,3), is studied in ultraperipheral pp Pb collisions at a centre-of-mass energy per nucleon pair of ?sNN=5.02TeV . The measurement is performed using the ?(nS)??+?? 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 ?(nS) transverse momentum squared p2T, and rapidity y, are presented. The ?(1S) 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

Authorship: Sirunyan A.M., Tumasyan A., Adam W., Ambrogi F., Asilar E., Bergauer T., Brandstetter J., Brondolin E., Dragicevic M., Erö J., Del Valle A.E., Flechl M., Friedl M., Frühwirth R., Ghete V.M., Grossmann J., Hrubec J., Jeitler M., König A., Krammer N., Krätschmer I., Liko D., Madlener T., Mikulec I., Pree E., Rad N., Rohringer H., Schieck J., Schöfbeck R., Spanring M., Spitzbart D., Taurok A., Waltenberger W., Wittmann J., Wulz C.E

Fuente: European Physical Journal C, 2019, 79(3), 277 -- (ERRATUM) 2022, 82(4), 343

Publisher: Springer New York LLC

Publication date: 01/03/2019

No. of pages: 26

Publication type: Article

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

ISSN: 1434-6044,1434-6052

Publication Url: https://doi.org/10.1140/epjc/s10052-019-6774-8

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