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 Detalle_Publicacion

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.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 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