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Charm production and hadronization in pp and p-Pb collisions at the LHC with ALICE
Studies of open-charm hadron production in pp and \pPb collisions are performed by the ALICE Collaboration at the LHC to investigate charm-quark hadronization mechanisms. Recent measurements of charm meson (${\rm D^0}$, ${\rm D^+}$, ${\rm D^+_{\rm s}}$, and ${\rm D^{*+}}$) and baryon ($\Lambda^+_{\r...
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Lenguaje: | eng |
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2022
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Acceso en línea: | http://cds.cern.ch/record/2816113 |
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author | Kalteyer, Annalena Sophie |
author_facet | Kalteyer, Annalena Sophie |
author_sort | Kalteyer, Annalena Sophie |
collection | CERN |
description | Studies of open-charm hadron production in pp and \pPb collisions are performed by the ALICE Collaboration at the LHC to investigate charm-quark hadronization mechanisms. Recent measurements of charm meson (${\rm D^0}$, ${\rm D^+}$, ${\rm D^+_{\rm s}}$, and ${\rm D^{*+}}$) and baryon ($\Lambda^+_{\rm c}$, $\Xi^{0,+}_{\rm c}$, $\Sigma^{0,++}_{\rm c}$, and $\Omega^0_{\rm c}$) production in pp collisions at $\sqrt{s}$ = 5.02 TeV and $\sqrt{s}$ = 13 TeV allow the determination of the charm cross section and the fragmentation fractions at $\sqrt{s}$ = 5.02 TeV with unprecedented precision. The measurements show that the fragmentation fractions significantly differ from the ones measured in ${\rm e^+e^-}$ and \ep collisions. This highlights possible differences in the hadronization process between electron induced collisions and pp collisions at the LHC. \\ Furthermore, the first measurement of the baryon-to-meson yield ratio $\Lambda^+_{\rm c}/{\rm D^0}$, down to $p_{\rm T}=0$ in pp and \pPb collisions will be discussed. In p--Pb collisions a modification of the hadronization mechanisms could be present due to cold nuclear matter effects and collective phenomena. A systematic comparison between data and model calculations will help to understand charm quark hadronization in pp and p--Pb collisions. |
id | cern-2816113 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2022 |
record_format | invenio |
spelling | cern-28161132023-01-31T04:00:06Zhttp://cds.cern.ch/record/2816113engKalteyer, Annalena SophieCharm production and hadronization in pp and p-Pb collisions at the LHC with ALICEhep-exParticle Physics - Experimentnucl-exNuclear Physics - ExperimentStudies of open-charm hadron production in pp and \pPb collisions are performed by the ALICE Collaboration at the LHC to investigate charm-quark hadronization mechanisms. Recent measurements of charm meson (${\rm D^0}$, ${\rm D^+}$, ${\rm D^+_{\rm s}}$, and ${\rm D^{*+}}$) and baryon ($\Lambda^+_{\rm c}$, $\Xi^{0,+}_{\rm c}$, $\Sigma^{0,++}_{\rm c}$, and $\Omega^0_{\rm c}$) production in pp collisions at $\sqrt{s}$ = 5.02 TeV and $\sqrt{s}$ = 13 TeV allow the determination of the charm cross section and the fragmentation fractions at $\sqrt{s}$ = 5.02 TeV with unprecedented precision. The measurements show that the fragmentation fractions significantly differ from the ones measured in ${\rm e^+e^-}$ and \ep collisions. This highlights possible differences in the hadronization process between electron induced collisions and pp collisions at the LHC. \\ Furthermore, the first measurement of the baryon-to-meson yield ratio $\Lambda^+_{\rm c}/{\rm D^0}$, down to $p_{\rm T}=0$ in pp and \pPb collisions will be discussed. In p--Pb collisions a modification of the hadronization mechanisms could be present due to cold nuclear matter effects and collective phenomena. A systematic comparison between data and model calculations will help to understand charm quark hadronization in pp and p--Pb collisions.arXiv:2207.07590oai:cds.cern.ch:28161132022-07-15 |
spellingShingle | hep-ex Particle Physics - Experiment nucl-ex Nuclear Physics - Experiment Kalteyer, Annalena Sophie Charm production and hadronization in pp and p-Pb collisions at the LHC with ALICE |
title | Charm production and hadronization in pp and p-Pb collisions at the LHC with ALICE |
title_full | Charm production and hadronization in pp and p-Pb collisions at the LHC with ALICE |
title_fullStr | Charm production and hadronization in pp and p-Pb collisions at the LHC with ALICE |
title_full_unstemmed | Charm production and hadronization in pp and p-Pb collisions at the LHC with ALICE |
title_short | Charm production and hadronization in pp and p-Pb collisions at the LHC with ALICE |
title_sort | charm production and hadronization in pp and p-pb collisions at the lhc with alice |
topic | hep-ex Particle Physics - Experiment nucl-ex Nuclear Physics - Experiment |
url | http://cds.cern.ch/record/2816113 |
work_keys_str_mv | AT kalteyerannalenasophie charmproductionandhadronizationinppandppbcollisionsatthelhcwithalice |