Coherent \(\psi(2S)\) photo-production in ultra-peripheral Pb-Pb collisions at \(\sqrt{s_{\rm NN}}\)= 2.76 TeV
dc.contributor.author | Adam, Jaroslav | |
dc.contributor.author | Adamová, Dagmar | |
dc.contributor.author | Aggarwal, Madan M. | |
dc.contributor.author | Aglieri Rinella, Gianluca | |
dc.contributor.author | Agnello, Michelangelo | |
dc.contributor.author | Agrawal, Nikita | |
dc.contributor.author | Ahammed, Zubayer | |
dc.contributor.author | Ahn, Sang Un | |
dc.contributor.author | Aimo, Ilaria | |
dc.contributor.author | Aiola, Salvatore | |
dc.contributor.author | Alme, Johan | |
dc.contributor.author | Helstrup, Håvard | |
dc.contributor.author | Hetland, Kristin Fanebust | |
dc.contributor.author | Kileng, Bjarte | |
dc.contributor.author | Altinpinar, Sedat | |
dc.contributor.author | Djuvsland, Øystein | |
dc.contributor.author | Haaland, Øystein Senneset | |
dc.contributor.author | Huang, Meidana | |
dc.contributor.author | Lønne, Per-Ivar | |
dc.contributor.author | Nystrand, Joakim | |
dc.contributor.author | Rehman, Attiq ur | |
dc.contributor.author | Røhrich, Dieter | |
dc.contributor.author | Skjerdal, Kyrre | |
dc.contributor.author | Ullaland, Kjetil | |
dc.contributor.author | Velure, Arild | |
dc.contributor.author | Wagner, Boris | |
dc.contributor.author | Zhang, Hui | |
dc.contributor.author | Zhou, Zhuo | |
dc.contributor.author | Arsene, Ionut Christian | |
dc.contributor.author | Bätzing, Paul Christoph | |
dc.contributor.author | Dordic, Olja | |
dc.contributor.author | Lindal, Svein | |
dc.contributor.author | Mahmood, Sohail Musa | |
dc.contributor.author | Milosevic, Jovan | |
dc.contributor.author | Qvigstad, Henrik | |
dc.contributor.author | Richter, Matthias | |
dc.contributor.author | Røed, Ketil | |
dc.contributor.author | Skaali, Toralf Bernhard | |
dc.contributor.author | Tveter, Trine Spedstad | |
dc.contributor.author | Wikne, Jon Christopher | |
dc.contributor.author | Zhao, Chengxin | |
dc.contributor.author | Langøy, Rune | |
dc.contributor.author | Lien, Jørgen André | |
dc.contributor.author | Ajaz, Muhammad | |
dc.contributor.author | Akindinov, Alexander | |
dc.contributor.author | Alam, Sk Noor | |
dc.contributor.author | Aleksandrov, Dimitry | |
dc.contributor.author | Alessandro, Bruno | |
dc.contributor.author | Alexandre, Didier | |
dc.contributor.author | ALICE, Collaboration | |
dc.contributor.author | Zhu, Hongsheng | |
dc.date.accessioned | 2017-12-21T12:26:39Z | |
dc.date.available | 2017-12-21T12:26:39Z | |
dc.date.issued | 2015-12 | |
dc.Published | Adam J, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahn SU, Aimo I, Aiola S, Alme J, Helstrup H, Hetland KF, Kileng B, Altinpinar S, Djuvsland Ø, Haaland ØS, Huang M, Lønne P, Nystrand J, Rehman Au, Røhrich D, Skjerdal K, Ullaland K, Velure A, Wagner B, Zhang H, Zhou Z, Arsene IC, Bätzing P, Dordic O, Lindal S, Mahmood SM, Milosevic J, Qvigstad H, Richter M, Røed K, Skaali TB, Tveter TS, Wikne JC, Zhao C, Langøy R, Lien JA, Ajaz M, Akindinov A, Alam SN, Aleksandrov D, Alessandro B, Alexandre D, ALICE C, Zhu H. Coherent ψ(2S) photo-production in ultra-peripheral PbPb collisions at √sNN=2.76 TeV. Physics Letters B. 2015;751:358-370 | eng |
dc.identifier.issn | 0370-2693 | en_US |
dc.identifier.issn | 1873-2445 | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/17081 | |
dc.description.abstract | The ALICE Collaboration has performed the first measurement of the coherent \(\psi(2S)\) photo-production cross section in ultra-peripheral Pb-Pb collisions at the LHC. This charmonium excited state is reconstructed via the \(\psi(2S)\rightarrow l^+l^-\) and \(\psi(2S)\rightarrow{\rm J}/\psi \pi^+\pi^-\) decays, where the J/\(\psi\) decays into two leptons. The analysis is based on an event sample corresponding to an integrated luminosity of about 22 \(\mu\)b\)^{-1}\), The cross section for coherent \(\psi(2S)\) production in the rapidity interval \(-0.9 < y < 0.9\) is \({\rm d}\sigma^{\rm coh}_{\psi(2S)}/{\rm d}y = 0.83\pm0.19 {\rm (stat+syst)}\) mb. The \(\psi(2S)/{\rm J}/\psi\) coherent cross section ratio is 0.34\)^{+0.08}_{-0.07}{\rm (stat+syst)}\), The obtained cross section and the \(\psi(2S)/{\rm J}/\psi\) coherent cross section ratio are compared to those from theoretical models. | en_US |
dc.language.iso | eng | eng |
dc.publisher | Elsevier | en_US |
dc.rights | Attribution CC BY | eng |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0 | eng |
dc.title | Coherent \(\psi(2S)\) photo-production in ultra-peripheral Pb-Pb collisions at \(\sqrt{s_{\rm NN}}\)= 2.76 TeV | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.date.updated | 2017-10-11T11:03:40Z | |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright 2015 CERN for the benefit of the ALICE Collaboration | en_US |
dc.identifier.doi | https://doi.org/10.1016/j.physletb.2015.10.040 | |
dc.identifier.cristin | 1309341 | |
dc.source.journal | Physics Letters B | |
dc.relation.project | Norges forskningsråd: 217288 | |
dc.subject.nsi | VDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 | |
dc.subject.nsi | VDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 |