Cross sections for the coherent photoproduction of ρ 0 vector mesons in ultraperipheral Pb-Pb collisions at √ sNN = 5.02 TeV are reported. The measurements, which rely on the π +π − decay channel, are presented in three regions of rapidity covering the range |y| < 0.8. For each rapidity interval, cross sections are shown for different nuclearbreakup 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.
Eser Adı (dc.title) | Coherent photoproduction of rho-0 vector mesons in ultra-peripheral Pb-Pb collisions at sNN = 5.02 TeV |
Yayın Türü (dc.type) | Diğer |
Yazar/lar (dc.contributor.author) | KARASU UYSAL, Ayben |
Yazar/lar (dc.contributor.author) | ALICE Collaboration |
Atıf Dizini (dc.source.database) | Wos |
Atıf Dizini (dc.source.database) | Scopus |
Yayın Tarihi (dc.date.issued) | 2020 |
Kayıt Giriş Tarihi (dc.date.accessioned) | 2022-03-05T13:18:16Z |
Açık Erişim tarihi (dc.date.available) | 2022-03-05T13:18:16Z |
Özet (dc.description.abstract) | Cross sections for the coherent photoproduction of ρ 0 vector mesons in ultraperipheral Pb-Pb collisions at √ sNN = 5.02 TeV are reported. The measurements, which rely on the π +π − decay channel, are presented in three regions of rapidity covering the range |y| < 0.8. For each rapidity interval, cross sections are shown for different nuclearbreakup 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. |
Tek Biçim Adres (dc.identifier.uri) | http://hdl.handle.net/20.500.12498/5363 |