Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √sNN=2.76 TeV
dc.date.accessioned | 2020-03-09T19:46:22Z | |
dc.date.available | 2020-03-09T19:46:22Z | |
dc.date.created | 2019-04-02T18:51:33Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Acharya, Shreyasi Adamová, Dagmar Adolfsson, Jonatan Aggarwal, Madan M. Aglieri Rinella, Gianluca Agnello, Michelangelo Agrawal, Nikita Ahammed, Zubayer Ahn, Sang Un Aiola, Salvatore Alme, Johan Altenkaemper, Lucas Djuvsland, Øystein Ersdal, Magnus Rentsch Fionda, Fiorella Maria Celeste Nystrand, Joakim Rehman, Attiq ur Røhrich, Dieter Tambave, Ganesh Jagannath Ullaland, Kjetil Wagner, Boris Zhou, Zhuo Arsene, Ionut Cristian Bätzing, Paul Christoph Dordic, Olja Lardeux, Antoine Xavier Lindal, Svein Mahmood, Sohail Musa Malik, Qasim Waheed Richter, Matthias Røed, Ketil Skaali, Toralf Bernhard Tveter, Trine Spedstad Wikne, Jon Christopher Zhao, Chengxin Helstrup, Håvard Hetland, Kristin Fanebust Kileng, Bjarte Nesbø, Simon Voigt Storetvedt, Maksim Melnik Langøy, Rune Lien, Jørgen André Akindinov, Alexander Al-Turany, Mohammed Alam, Sk Noor De Albuquerque, Danilo Silva Aleksandrov, Dimitry Alessandro, Bruno Alfaro Molina, José Rubén Ali, Yasir Turki Ben ALICE, Collaboration . Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √sNN=2.76 TeV. Physical Review C. 2019, 99:024905, 1-12 | |
dc.identifier.uri | http://hdl.handle.net/10852/73787 | |
dc.description.abstract | The production yield of the Λ(1520) baryon resonance is measured at midrapidity in Pb-Pb collisions at √sNN = 2.76 TeV with the ALICE detector at the Large Hadron Collider (LHC). The measurement is performed in the Λ(1520)→pK− (and charge conjugate) hadronic decay channel as a function of the transverse momentum (pT) and collision centrality. The ratio of the pT-integrated production of Λ(1520) baryons relative to Λ baryons in central collisions is suppressed by about a factor of 2 with respect to peripheral collisions. This is the first observation of the suppression of a baryonic resonance at the LHC and the first 3σ evidence of Λ(1520) suppression within a single collision system. The measured Λ(1520)/Λ ratio in central collisions is smaller than the value predicted by the statistical hadronization model calculations. The shape of the measured pT distribution and the centrality dependence of the suppression are reproduced by the EPOS3 Monte Carlo event generator. The measurement adds further support to the formation of a dense hadronic phase in the final stages of the evolution of the fireball created in heavy-ion collisions, lasting long enough to cause a significant reduction in the observable yield of short-lived resonances. | en_US |
dc.language | EN | |
dc.publisher | American Physical Society | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √sNN=2.76 TeV | en_US |
dc.type | Journal article | en_US |
dc.creator.author | Acharya, Shreyasi | |
dc.creator.author | Adamová, Dagmar | |
dc.creator.author | Adolfsson, Jonatan | |
dc.creator.author | Aggarwal, Madan M. | |
dc.creator.author | Aglieri Rinella, Gianluca | |
dc.creator.author | Agnello, Michelangelo | |
dc.creator.author | Agrawal, Nikita | |
dc.creator.author | Ahammed, Zubayer | |
dc.creator.author | Ahn, Sang Un | |
dc.creator.author | Aiola, Salvatore | |
dc.creator.author | Alme, Johan | |
dc.creator.author | Altenkaemper, Lucas | |
dc.creator.author | Djuvsland, Øystein | |
dc.creator.author | Ersdal, Magnus Rentsch | |
dc.creator.author | Fionda, Fiorella Maria Celeste | |
dc.creator.author | Nystrand, Joakim | |
dc.creator.author | Rehman, Attiq ur | |
dc.creator.author | Røhrich, Dieter | |
dc.creator.author | Tambave, Ganesh Jagannath | |
dc.creator.author | Ullaland, Kjetil | |
dc.creator.author | Wagner, Boris | |
dc.creator.author | Zhou, Zhuo | |
dc.creator.author | Arsene, Ionut Cristian | |
dc.creator.author | Bätzing, Paul Christoph | |
dc.creator.author | Dordic, Olja | |
dc.creator.author | Lardeux, Antoine Xavier | |
dc.creator.author | Lindal, Svein | |
dc.creator.author | Mahmood, Sohail Musa | |
dc.creator.author | Malik, Qasim Waheed | |
dc.creator.author | Richter, Matthias | |
dc.creator.author | Røed, Ketil | |
dc.creator.author | Skaali, Toralf Bernhard | |
dc.creator.author | Tveter, Trine Spedstad | |
dc.creator.author | Wikne, Jon Christopher | |
dc.creator.author | Zhao, Chengxin | |
dc.creator.author | Helstrup, Håvard | |
dc.creator.author | Hetland, Kristin Fanebust | |
dc.creator.author | Kileng, Bjarte | |
dc.creator.author | Nesbø, Simon Voigt | |
dc.creator.author | Storetvedt, Maksim Melnik | |
dc.creator.author | Langøy, Rune | |
dc.creator.author | Lien, Jørgen André | |
dc.creator.author | Akindinov, Alexander | |
dc.creator.author | Al-Turany, Mohammed | |
dc.creator.author | Alam, Sk Noor | |
dc.creator.author | De Albuquerque, Danilo Silva | |
dc.creator.author | Aleksandrov, Dimitry | |
dc.creator.author | Alessandro, Bruno | |
dc.creator.author | Alfaro Molina, José Rubén | |
dc.creator.author | Ali, Yasir Turki Ben | |
dc.creator.author | ALICE, Collaboration | |
cristin.unitcode | 185,15,4,60 | |
cristin.unitname | Høyenergifysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1689849 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical Review C&rft.volume=99:024905&rft.spage=1&rft.date=2019 | |
dc.identifier.jtitle | Physical Review C | |
dc.identifier.volume | 99 | |
dc.identifier.issue | 2 | |
dc.identifier.doi | https://doi.org/10.1103/PhysRevC.99.024905 | |
dc.identifier.urn | URN:NBN:no-76882 | |
dc.subject.nvi | VDP::Kjerne- og elementærpartikkelfysikk: 431 | |
dc.type.document | Tidsskriftartikkel | en_US |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 2469-9985 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/73787/1/acharya95980.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | 024905 |
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