Beyond nPDFs Effects : Prompt J/? And ?(2s) Production İn pPb And Pp Collisions
Yükleniyor...
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
The CMS Collaboration
Erişim Hakkı
Özet
A multi-dimensional analysis of prompt charmonia in pp and pPb collisions at ? sNN = 5.02 TeV with the CMS detector is resented. The pPb differential cross-sections of prompt J/? are shown in a wide kinematic region, for transverse momentum pT spanning from 2 to 30 GeV/c and a rapidity interval between -2.4 to 1.93 in the center of mass of the collision. The final results on prompt ?(2S) meson production cross section in pp and pPb collisions at 5.02 TeV are also reported as a function of pT and rapidity, for pT from 4 to 30 GeV/c. The nuclear modification factor is found to be smaller than that of prompt J/? in all measured bins, especially at low pT and at backward rapidity. Such a different behaviour between the ground and excited states cannot be reproduced considering nPDF effects alone.
Açıklama
Anahtar Kelimeler
Quarkonia, Charmonia, Prompt J/ψ, Prompt ψ(2S), Production
Kaynak
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
Sayı
Künye
Nuclear Physics A 982 (2019) 743–746
