Beyond nPDFs effects: prompt J/ψ and ψ(2S) production in pPb and pp collisions
A multi-dimensional analysis of prompt charmonia in pp and pPb collisions at sNN=5.02TeV with the CMS detector is presented. The pPb differential cross-sections of prompt J/ψ are shown in a wide kinematic region, for transverse momentum pT spanning from 2 to 30 GeV/c and a rapidity interval between...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
Elsevier B.V.
2019
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/71106/ http://irep.iium.edu.my/71106/ http://irep.iium.edu.my/71106/ http://irep.iium.edu.my/71106/1/71106_Beyond%20nPDFs%20effects.pdf http://irep.iium.edu.my/71106/2/71106_Beyond%20nPDFs%20effects_SCOPUS.pdf http://irep.iium.edu.my/71106/3/71106_Beyond%20nPDFs%20effects_WOS.pdf |
| Summary: | A multi-dimensional analysis of prompt charmonia in pp and pPb collisions at sNN=5.02TeV with the CMS detector is presented. The pPb differential cross-sections of prompt J/ψ 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 ψ(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/ψ 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. © 2018 |
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