\(^{3}_{\Lambda}\mathrm H\) and \(^{3}_{\bar{\Lambda}} \overline{\mathrm H}\) production in 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 | 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 | Zhu, Hongsheng | |
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 | Alfaro Molina, José Rubén | |
dc.contributor.author | ALICE, Collaboration | |
dc.date.accessioned | 2017-11-08T09:00:29Z | |
dc.date.available | 2017-11-08T09:00:29Z | |
dc.date.issued | 2016-03 | |
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, Ullaland K, Velure A, Wagner B, Zhang H, Zhou Z, Zhu H, 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, Alfaro Molina JR, ALICE C. 3ΛH and -3Λ-H production in Pb-Pb collisions at √sNN=2.76 TeV. Physics Letters B. 2016;754:360-372 | eng |
dc.identifier.issn | 0370-2693 | en_US |
dc.identifier.issn | 1873-2445 | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/16901 | |
dc.description.abstract | The production of the hypertriton nuclei \(^{3}_{\Lambda}\mathrm H\) and \(^{3}_{\bar{\Lambda}} \overline{\mathrm H}\) has been measured for the first time in Pb-Pb collisions at \(\sqrt{s_{\rm NN}}\) = 2.76 TeV with the ALICE experiment at LHC energies. The total yield, d\(N\)/d\(y\) \(\times \mathrm{B.R.}_{\left( ^{3}_{\Lambda}\mathrm H \rightarrow ^{3}\mathrm{He},\pi^{-} \right)} = \left( 3.86 \pm 0.77 (\mathrm{stat.}) \pm 0.68 (\mathrm{syst.})\right) \times 10^{-5}\) in the 0-10% most central collisions, is consistent with the predictions from a statistical thermal model using the same temperature as for the light hadrons. The coalescence parameter \(B_3\) shows a dependence on the transverse momentum, similar to the \(B_2\) of deuterons and the \(B_3\) of \(^{3}\mathrm{He}\) nuclei. The ratio of yields \(S_3\) = \(^{3}_{\Lambda}\mathrm H\). \(^{3}\mathrm{He}\) \(\times \Lambda/\mathrm{p}\) was measured to be \(S_3\) = 0.60 \(\pm\) 0.13 (stat.) \(\pm\) 0.21 (syst.) in 0-10% centrality events; this value is compared to different theoretical models. The measured \(S_3\) is fully compatible with thermal model predictions. The measured \(^{3}_{\Lambda}\mathrm H\) lifetime, \( \tau = 181^{+54}_{-39} (\mathrm{stat.}) \pm 33 (\mathrm{syst.})\ \mathrm{ps}\) is compatible within 1\(\sigma\) with the world average value. | 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 | \(^{3}_{\Lambda}\mathrm H\) and \(^{3}_{\bar{\Lambda}} \overline{\mathrm H}\) production in Pb-Pb collisions at \(\sqrt{s_{\rm NN}}\) = 2.76 TeV | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.date.updated | 2017-10-06T08:02:08Z | |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright 2016 CERN for the benefit of the ALICE Collaboration | en_US |
dc.identifier.doi | https://doi.org/10.1016/j.physletb.2016.01.040 | |
dc.identifier.cristin | 1362546 | |
dc.source.journal | Physics Letters B | |
dc.relation.project | Norges forskningsråd: 255188 | |
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 |