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Highlights of the production of (anti-)(hyper-)nuclei and exotica with ALICE at the LHC

Measurements of the production of light (anti-)nuclei and (anti-)hypernuclei have been performed in different colliding systems, namely pp, p–Pb and Pb–Pb. The results of the production in Pb–Pb collisions of light (anti-)(hyper-)nuclei follows the expectation of thermal models, whereas the producti...

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Autor principal: Dönigus, Benjamin
Lenguaje:eng
Publicado: 2019
Materias:
Acceso en línea:https://dx.doi.org/10.1063/1.5118385
http://cds.cern.ch/record/2834870
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author Dönigus, Benjamin
author_facet Dönigus, Benjamin
author_sort Dönigus, Benjamin
collection CERN
description Measurements of the production of light (anti-)nuclei and (anti-)hypernuclei have been performed in different colliding systems, namely pp, p–Pb and Pb–Pb. The results of the production in Pb–Pb collisions of light (anti-)(hyper-)nuclei follows the expectation of thermal models, whereas the production of nuclei in p–Pb collisions tends to closer follow the expectations from coalescence models. Both models can give predictions for the production of hypothetical states such as bound states of two Λ hyperons or of a Λ and a neutron, which are expected to decay weakly. These states are searched for and no signal is found, thus upper limits, which are significantly below the model expectations, are set. Further, the most recent measurement of the lifetime of the hypertriton determined in Pb–Pb collisions at sNN=5.02 TeV at the LHC gives a value exactly between the expectations of the most recent theoretical calculation and the world average. In addition, the new result is in agreement with other recent measurements in heavy-ion collisions.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
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spelling cern-28348702022-10-05T13:14:45Zdoi:10.1063/1.5118385http://cds.cern.ch/record/2834870engDönigus, BenjaminHighlights of the production of (anti-)(hyper-)nuclei and exotica with ALICE at the LHCParticle Physics - ExperimentNuclear Physics - ExperimentMeasurements of the production of light (anti-)nuclei and (anti-)hypernuclei have been performed in different colliding systems, namely pp, p–Pb and Pb–Pb. The results of the production in Pb–Pb collisions of light (anti-)(hyper-)nuclei follows the expectation of thermal models, whereas the production of nuclei in p–Pb collisions tends to closer follow the expectations from coalescence models. Both models can give predictions for the production of hypothetical states such as bound states of two Λ hyperons or of a Λ and a neutron, which are expected to decay weakly. These states are searched for and no signal is found, thus upper limits, which are significantly below the model expectations, are set. Further, the most recent measurement of the lifetime of the hypertriton determined in Pb–Pb collisions at sNN=5.02 TeV at the LHC gives a value exactly between the expectations of the most recent theoretical calculation and the world average. In addition, the new result is in agreement with other recent measurements in heavy-ion collisions.oai:cds.cern.ch:28348702019
spellingShingle Particle Physics - Experiment
Nuclear Physics - Experiment
Dönigus, Benjamin
Highlights of the production of (anti-)(hyper-)nuclei and exotica with ALICE at the LHC
title Highlights of the production of (anti-)(hyper-)nuclei and exotica with ALICE at the LHC
title_full Highlights of the production of (anti-)(hyper-)nuclei and exotica with ALICE at the LHC
title_fullStr Highlights of the production of (anti-)(hyper-)nuclei and exotica with ALICE at the LHC
title_full_unstemmed Highlights of the production of (anti-)(hyper-)nuclei and exotica with ALICE at the LHC
title_short Highlights of the production of (anti-)(hyper-)nuclei and exotica with ALICE at the LHC
title_sort highlights of the production of (anti-)(hyper-)nuclei and exotica with alice at the lhc
topic Particle Physics - Experiment
Nuclear Physics - Experiment
url https://dx.doi.org/10.1063/1.5118385
http://cds.cern.ch/record/2834870
work_keys_str_mv AT donigusbenjamin highlightsoftheproductionofantihypernucleiandexoticawithaliceatthelhc