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Suppression of ψ(2S) production in p-Pb collisions at sNN−−−√ = 5.02 TeV
dc.contributor.author | ALICE Collaboration | |
dc.contributor.author | Tapia Takaki, Daniel | |
dc.date.accessioned | 2015-12-21T16:32:48Z | |
dc.date.available | 2015-12-21T16:32:48Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | The ALICE Collaboration. "Suppression of ψ(2S) Production in P-Pb Collisions at SNN−−−√ = 5.02 TeV." Journal of High Energy Physics (2014). http://dx.doi.org/10.1007/JHEP12(2014)073. | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/19295 | |
dc.description | This is the published version. Open Access, Copyright CERN, for the benefit of the ALICE Collaboration. Article funded by SCOAP3. | en_US |
dc.description.abstract | The ALICE Collaboration has studied the inclusive production of the charmonium state ψ(2S) in proton-lead (p-Pb) collisions at the nucleon-nucleon centre of mass energy sNN−−−√ = 5.02 TeV at the CERN LHC. The measurement was performed at forward (2.03 < y cms < 3.53) and backward (−4.46 < y cms < −2.96) centre of mass rapidities, studying the decays into muon pairs. In this paper, we present the inclusive production cross sections σ ψ(2S), both integrated and as a function of the transverse momentum p T, for the two y cms domains. The results are compared to those obtained for the 1S vector state (J/ψ), by showing the ratios between the production cross sections, as well as the double ratios [σ ψ(2S) /σ J/ψ ]pPb /[σ ψ(2S) /σ J/ψ ]pp between p-Pb and proton-proton collisions. Finally, the nuclear modification factor for inclusive ψ(2S) is evaluated and compared to the measurement of the same quantity for J/ψ and to theoretical models including parton shadowing and coherent energy loss mechanisms. The results show a significantly larger suppression of the ψ(2S) compared to that measured for J/ψ and to models. These observations represent a clear indication for sizeable final state effects on ψ(2S) production. | en_US |
dc.publisher | Springer Verlag | en_US |
dc.subject | Charm physics | en_US |
dc.subject | Heavy Ions | en_US |
dc.title | Suppression of ψ(2S) production in p-Pb collisions at sNN−−−√ = 5.02 TeV | en_US |
dc.type | Article | |
kusw.kuauthor | Tapia Takaki, Daniel | |
kusw.kudepartment | Physics and Astronomy | en_US |
dc.identifier.doi | 10.1007/JHEP12(2014)073 | |
kusw.oaversion | Scholarly/refereed, publisher version | |
kusw.oapolicy | This item meets KU Open Access policy criteria. | |
dc.rights.accessrights | openAccess |