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Measurement of exclusive ?(770)0 photoproduction in ultraperipheral pPb collisions at ?sNN=5.02TeV

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.

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Fuente: Eur. Phys. J. C (2019) 79:702

Editorial: Springer New York LLC

Fecha de publicación: 01/08/2019

Nº de páginas: 27

Tipo de publicación: Artículo de Revista

DOI: 10.1140/epjc/s10052-019-7202-9

ISSN: 1434-6044,1434-6052

Url de la publicación: https://doi.org/10.1140/epjc/s10052-019-7202-9

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Autoría

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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