Measurement of exclusive ρ(770)0ρ(770)0 photoproduction in ultraperipheral pPb collisions at √Snn =5.02TeV

Measurement of exclusive ρ(770)0ρ(770)0 photoproduction in ultraperipheral pPb collisions at √Snn =5.02TeV

Podrobná bibliografie
Parent link:European Physical Journal C
Vol. 79, iss. 8.— 2019.— [702, 27 p.]
Korporativní autor: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Další autoři: Sirunyan A. M., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Asilar E. Ece, Bergauer T. Thomas, Babaev A. A. Anton Anatoljevich
Shrnutí:Title screen
Exclusive ρ(770)0ρ(770)0 photoproduction is measured for the first time in ultraperipheral pPb collisions at sNN−−−√=5.02TeVsNN=5.02TeV with the CMS detector. The cross section σ(γp→ρ(770)0p)σ(γp→ρ(770)0p) is 11.0±1.4(stat)±1.0(syst)11.0±1.4(stat)±1.0(syst) μμb at ⟨Wγp⟩=92.6GeV⟨Wγp⟩=92.6GeV for photon-proton centre-of-mass energies WγpWγp between 29 and 213GeV213GeV. The differential cross section dσ/d|t|dσ/d|t| is measured in the interval 0.025<|t|<1GeV20.025<|t|<1GeV2 as a function of WγpWγp, 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 σ(γp→ρ(770)0p)σ(γp→ρ(770)0p) has a power-law dependence on the photon-proton centre-of-mass, consistent with electron-proton collision measurements performed at HERA. The WγpWγp dependence of the exponential slope of the differential cross section dσ/d|t|dσ/d|t| is also measured.
Jazyk:angličtina
Vydáno: 2019
Témata:
электронный ресурс
труды учёных ТПУ
протон-протонные соударения
фоторождение
On-line přístup:https://doi.org/10.1140/epjc/s10052-019-7202-9
Médium: Elektronický zdroj Kapitola
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662436

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