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Production of light (anti-)nuclei and (anti-)hypernuclei with ALICE at the LHC

<!--HTML--><p>The high energy pp, p-Pb, and Pb-Pb collisions at the LHC offer a unique tool to study the production of nuclei and hyperon-baryon bound systems, called hypernuclei, and the corresponding anti-particles. The study of the production yield of (anti-)(hyper-)nuclei in heay-ion...

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Autor principal: Lea, Ramona
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:http://cds.cern.ch/record/2286157
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author Lea, Ramona
author_facet Lea, Ramona
author_sort Lea, Ramona
collection CERN
description <!--HTML--><p>The high energy pp, p-Pb, and Pb-Pb collisions at the LHC offer a unique tool to study the production of nuclei and hyperon-baryon bound systems, called hypernuclei, and the corresponding anti-particles. The study of the production yield of (anti-)(hyper-)nuclei in heay-ion collisions at the LHC energy probes the late stages in the evolution of the hot, dense nuclear matter created in the collision and serves as baseline for the search of exotic multi-baryon states.<br /> The measurements in smaller collision systems may also provide an input to cosmological searches for segregated primordial anti-matter and dark matter, since anti-nuclei produced in pp and p--A collisions in interstellar space represent a background source in these measurements. Thanks to its excellent particle identification and tracking capabilities, the ALICE detector allows for the measurement of deuterons, tritons, 3He, 4He and their corresponding anti-nuclei. Moreover, the secondary vertices from the mesonic decays of (anti-)hypernuclei can be reconstructed.</p> <p>Results on the production yields of light nuclei and anti-nuclei in pp, p–Pb, and Pb–Pb collisions will be presented, together with the measurements of hypertriton lifetime and production rates in Pb–Pb collisions. The experimental results will be compared to the predictions of statistical (thermal) model and baryon coalescence models. Further constraints on the production mechanism of light nuclei are obtained from measurements of the elliptic flow of deuterons and their comparison to expectations from coalescence and hydrodynamic models.</p>
id cern-2286157
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
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spelling cern-22861572022-11-02T22:32:57Zhttp://cds.cern.ch/record/2286157engLea, RamonaProduction of light (anti-)nuclei and (anti-)hypernuclei with ALICE at the LHCProduction of light (anti-)nuclei and (anti-)hypernuclei with ALICE at the LHCLHC Seminar<!--HTML--><p>The high energy pp, p-Pb, and Pb-Pb collisions at the LHC offer a unique tool to study the production of nuclei and hyperon-baryon bound systems, called hypernuclei, and the corresponding anti-particles. The study of the production yield of (anti-)(hyper-)nuclei in heay-ion collisions at the LHC energy probes the late stages in the evolution of the hot, dense nuclear matter created in the collision and serves as baseline for the search of exotic multi-baryon states.<br /> The measurements in smaller collision systems may also provide an input to cosmological searches for segregated primordial anti-matter and dark matter, since anti-nuclei produced in pp and p--A collisions in interstellar space represent a background source in these measurements. Thanks to its excellent particle identification and tracking capabilities, the ALICE detector allows for the measurement of deuterons, tritons, 3He, 4He and their corresponding anti-nuclei. Moreover, the secondary vertices from the mesonic decays of (anti-)hypernuclei can be reconstructed.</p> <p>Results on the production yields of light nuclei and anti-nuclei in pp, p–Pb, and Pb–Pb collisions will be presented, together with the measurements of hypertriton lifetime and production rates in Pb–Pb collisions. The experimental results will be compared to the predictions of statistical (thermal) model and baryon coalescence models. Further constraints on the production mechanism of light nuclei are obtained from measurements of the elliptic flow of deuterons and their comparison to expectations from coalescence and hydrodynamic models.</p>oai:cds.cern.ch:22861572017
spellingShingle LHC Seminar
Lea, Ramona
Production of light (anti-)nuclei and (anti-)hypernuclei with ALICE at the LHC
title Production of light (anti-)nuclei and (anti-)hypernuclei with ALICE at the LHC
title_full Production of light (anti-)nuclei and (anti-)hypernuclei with ALICE at the LHC
title_fullStr Production of light (anti-)nuclei and (anti-)hypernuclei with ALICE at the LHC
title_full_unstemmed Production of light (anti-)nuclei and (anti-)hypernuclei with ALICE at the LHC
title_short Production of light (anti-)nuclei and (anti-)hypernuclei with ALICE at the LHC
title_sort production of light (anti-)nuclei and (anti-)hypernuclei with alice at the lhc
topic LHC Seminar
url http://cds.cern.ch/record/2286157
work_keys_str_mv AT learamona productionoflightantinucleiandantihypernucleiwithaliceatthelhc