Energy dependence of forward-rapidity J / ψ and ψ(2 S) production in pp collisions at the LHC
(2017) In European Physical Journal C 77(6).- Abstract
- We present results on transverse momentum (pT) and rapidity (y) differential production cross sections, mean transverse momentum and mean transverse momentum square of inclusive J / ψ and ψ(2 S) at forward rapidity (2.5 < y< 4) as well as ψ(2 S) -to-J / ψ cross section ratios. These quantities are measured in pp collisions at center of mass energies s=5.02 and 13 TeV with the ALICE detector. Both charmonium states are reconstructed in the dimuon decay channel, using the muon spectrometer. A comprehensive comparison to inclusive charmonium cross sections measured at s=2.76, 7 and 8 TeV is performed. A comparison to non-relativistic quantum chromodynamics and fixed-order next-to-leading logarithm calculations, which describe prompt and... (More)
- We present results on transverse momentum (pT) and rapidity (y) differential production cross sections, mean transverse momentum and mean transverse momentum square of inclusive J / ψ and ψ(2 S) at forward rapidity (2.5 < y< 4) as well as ψ(2 S) -to-J / ψ cross section ratios. These quantities are measured in pp collisions at center of mass energies s=5.02 and 13 TeV with the ALICE detector. Both charmonium states are reconstructed in the dimuon decay channel, using the muon spectrometer. A comprehensive comparison to inclusive charmonium cross sections measured at s=2.76, 7 and 8 TeV is performed. A comparison to non-relativistic quantum chromodynamics and fixed-order next-to-leading logarithm calculations, which describe prompt and non-prompt charmonium production respectively, is also presented. A good description of the data is obtained over the full pT range, provided that both contributions are summed. In particular, it is found that for pT>15 GeV/c the non-prompt contribution reaches up to 50% of the total charmonium yield.
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Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/403be1f5-86c4-4260-8bca-acb5ffae94e6
- author
- S., Acharya ; Christiansen, P. LU ; Ljunggren, H. ; Oskarsson, A. LU ; Richert, T. LU ; Silvermyr, D. LU ; Stenlund, E. LU ; Vislavicius, V. LU and J., Zmeskal
- author collaboration
- organization
- publishing date
- 2017
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 77
- issue
- 6
- article number
- 392
- publisher
- Springer
- external identifiers
-
- scopus:85020514164
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-017-4940-4
- language
- English
- LU publication?
- yes
- id
- 403be1f5-86c4-4260-8bca-acb5ffae94e6
- date added to LUP
- 2022-04-05 08:19:04
- date last changed
- 2023-11-25 22:48:53
@article{403be1f5-86c4-4260-8bca-acb5ffae94e6, abstract = {{We present results on transverse momentum (pT) and rapidity (y) differential production cross sections, mean transverse momentum and mean transverse momentum square of inclusive J / ψ and ψ(2 S) at forward rapidity (2.5 < y< 4) as well as ψ(2 S) -to-J / ψ cross section ratios. These quantities are measured in pp collisions at center of mass energies s=5.02 and 13 TeV with the ALICE detector. Both charmonium states are reconstructed in the dimuon decay channel, using the muon spectrometer. A comprehensive comparison to inclusive charmonium cross sections measured at s=2.76, 7 and 8 TeV is performed. A comparison to non-relativistic quantum chromodynamics and fixed-order next-to-leading logarithm calculations, which describe prompt and non-prompt charmonium production respectively, is also presented. A good description of the data is obtained over the full pT range, provided that both contributions are summed. In particular, it is found that for pT>15 GeV/c the non-prompt contribution reaches up to 50% of the total charmonium yield. <br/>}}, author = {{S., Acharya and Christiansen, P. and Ljunggren, H. and Oskarsson, A. and Richert, T. and Silvermyr, D. and Stenlund, E. and Vislavicius, V. and J., Zmeskal}}, issn = {{1434-6044}}, language = {{eng}}, number = {{6}}, publisher = {{Springer}}, series = {{European Physical Journal C}}, title = {{Energy dependence of forward-rapidity J / ψ and ψ(2 S) production in pp collisions at the LHC}}, url = {{http://dx.doi.org/10.1140/epjc/s10052-017-4940-4}}, doi = {{10.1140/epjc/s10052-017-4940-4}}, volume = {{77}}, year = {{2017}}, }