Measurement of Prompt ψ(2S) to J/ψ Yield Ratios in Pb-Pb and p-p Collisions at sNN−−−−√=2.76 TeV
| dc.contributor.author | CMS Collaboration | |
| dc.date.accessioned | 2016-12-15T21:12:57Z | |
| dc.date.available | 2016-12-15T21:12:57Z | |
| dc.date.issued | 2014-12-31 | |
| dc.identifier.citation | CMS Collaboration. "Measurement of Prompt ψ(2S) to J/ψ Yield Ratios in Pb-Pb and p-p Collisions at sNN−−−−√=2.76 TeV." Physical Review Letters 113 (2014): 26-31. | en_US |
| dc.identifier.uri | http://hdl.handle.net/1808/22244 | |
| dc.description.abstract | The ratio between the prompt ψ(2S) and J/ψ yields, reconstructed via their decays into μ+μ−, is measured in Pb-Pb and p-p collisions at sNN−−−−√=2.76 TeV. The analysis is based on Pb-Pb and p-p data samples collected by CMS at the Large Hadron Collider, corresponding to integrated luminosities of 150 μb−1 and 5.4 pb−1, respectively. The double ratio of measured yields (Nψ(2S)/NJ/ψ)Pb−Pb/(Nψ(2S)/NJ/ψ)p−p is computed in three Pb-Pb collision centrality bins and two kinematic ranges: one at midrapidity, |y|<1.6, covering the transverse momentum range 6.5<pT<30 GeV/c, and the other at forward rapidity, 1.6<|y|<2.4, extending to lower pT values, 3<pT<30 GeV/c. The centrality-integrated double ratio changes from 0.45±0.13(stat)±0.07(syst) in the first range to 1.67±0.34(stat)±0.27(syst) in the second. This difference is most pronounced in the most central collisions. | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.relation.isversionof | http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.113.262301 | en_US |
| dc.rights | This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. | en_US |
| dc.rights.uri | http://creativecommons.org/licenses/by/3.0/ | |
| dc.title | Measurement of Prompt ψ(2S) to J/ψ Yield Ratios in Pb-Pb and p-p Collisions at sNN−−−−√=2.76 TeV | en_US |
| dc.type | Article | en_US |
| kusw.kuauthor | Sanders, Stephen J. | |
| kusw.kudepartment | Physics and Astronomy | en_US |
| kusw.oanotes | Per SHERPA/RoMEO 12/15/2016:Author's Pre-print: green tick author can archive pre-print (ie pre-refereeing) Author's Post-print: green tick author can archive post-print (ie final draft post-refereeing) Publisher's Version/PDF: green tick author can archive publisher's version/PDF General Conditions: On author's personal website, employer's website or institutional repository Publisher's version/PDF may be used Publisher's version/PDF may be used on author's personal website or employer's website only Link to publisher version required Publisher copyright and source must be acknowledged with citation | en_US |
| dc.identifier.doi | 10.1103/PhysRevLett.113.262301 | en_US |
| kusw.oaversion | Scholarly/refereed, publisher version | en_US |
| kusw.oapolicy | This item meets KU Open Access policy criteria. | en_US |
| kusw.proid | 123040731136 | en_US |
| dc.rights.accessrights | openAccess |
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