Publication: Coherent photoproduction of rho(0) vector mesons in ultra-peripheral Pb-Pb collisions at root s(NN)=5.02 TeV
Дата
2020
Авторы
Acharya, S.
Adamova, D.
Adler, A.
Adolfsson, J.
Belyaev, V.
Bogdanov, A.
Bolozdynya, A.
Borissov, A.
Grigoriev, V.
Kaplin, V.
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Аннотация
Cross sections for the coherent photoproduction of rho(0) vector mesons in ultra-peripheral Pb-Pb collisions at root s(NN) = 5.02 TeV are reported. The measurements, which rely on the pi(+)pi(-) decay channel, are presented in three regions of rapidity covering the range vertical bar y vertical bar < 0.8. For each rapidity interval, cross sections are shown for different nuclear-breakup classes defined according to the presence of neutrons measured in the zero-degree calorimeters. The results are compared with predictions based on different models of nuclear shadowing. Finally, the observation of a coherently produced resonance-like structure with a mass around 1.7 GeV/c(2) and a width of about 140 MeV/c(2) is reported and compared with similar observations from other experiments.
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Coherent photoproduction of rho(0) vector mesons in ultra-peripheral Pb-Pb collisions at root s(NN)=5.02 TeV / Acharya, S [et al.] // Journal of High Energy Physics. - 2020. - № 6. - 10.1007/JHEP06(2020)035
URI
https://www.doi.org/10.1007/JHEP06(2020)035
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https://openrepository.mephi.ru/handle/123456789/21952
https://www.scopus.com/record/display.uri?eid=2-s2.0-85088861612&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000538671000001
https://openrepository.mephi.ru/handle/123456789/21952