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Abstract: Exclusive ?(770)0 photoproduction is measured for the first time in ultraperipheral pPb collisions at ?sNN=5.02TeV with the CMS detector. The cross section ?(?p??(770)0p) is 11.0±1.4(stat)±1.0(syst) ?b at ?W?p?=92.6GeV for photon?proton centre-of-mass energies W?pW?p between 29 and 213GeV. The differential cross section d?/d|t| is measured in the interval 0.025<|t|<1GeV2 as a function of W?p, where t is the squared four-momentum transfer at the proton vertex. The results are compared with previous measurements and theoretical predictions. The measured cross section ?(?p??(770)0p) has a power-law dependence on the photon?proton centre-of-mass, consistent with electron?proton collision measurements performed at HERA. The W?pW?p dependence of the exponential slope of the differential cross section d?/d|t| is also measured.
Fuente: Eur. Phys. J. C (2019) 79:702
Publisher: Springer New York LLC
Publication date: 01/08/2019
No. of pages: 27
Publication type: Article
DOI: 10.1140/epjc/s10052-019-7202-9
ISSN: 1434-6044,1434-6052
Publication Url: https://doi.org/10.1140/epjc/s10052-019-7202-9
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UCrea Repository Read publication
SIRUNYAN, A. M.
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
BARBARA CHAZIN QUERO
JORGE DUARTE CAMPDERROS
MARCOS FERNANDEZ GARCIA
PEDRO JOSE FERNANDEZ MANTECA
ANDREA GARCIA ALONSO
JUAN GARCIA FERRERO
GERVASIO GOMEZ GRAMUGLIO
MARIA AMPARO LOPEZ VIRTO
JESUS MARCO DE LUCAS
CELSO MARTINEZ RIVERO
PABLO MARTINEZ RUIZ DEL ARBOL
FRANCISCO MATORRAS WEINIG
JONATAN PIEDRA GOMEZ
CEDRIC GERALD PRIEELS
MARIA TERESA RODRIGO ANORO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
NICOLO TREVISANI
IVAN VILA ALVAREZ
ROCIO VILAR CORTABITARTE
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