Measurement of HΛ3 production in Pb–Pb collisions at sNN=5.02 TeV

ALICE Collaboration

doi:10.1016/j.physletb.2024.139066

Measurement of HΛ3 production in Pb–Pb collisions at s_NN=5.02 TeV

ALICE Collaboration

Department of Physics

CERN
Université Clermont Auvergne
Czech Academy of Sciences
Variable Energy Cyclotron Centre
National Institute for Nuclear Physics
Aligarh Muslim University
Korea Institute of Science and Technology Information
Pavol Jozef Šafárik University
Goethe University Frankfurt
GSI Helmholtz Centre for Heavy Ion Research
Central China Normal University
Universidad Nacional Autónoma de México
University of Houston
Sungkyunkwan University
University of Bergen
Technical University of Munich
Benemerita Universidad Autonoma de Puebla
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Derby
University of Münster
Heidelberg University
Lawrence Berkeley National Laboratory
Nantes Université
Université Grenoble Alpes
Universidade de São Paulo
University of Oslo
Yale University

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The first measurement of HΛ3 and H‾Λ‾3 differential production with respect to transverse momentum and centrality in Pb–Pb collisions at s_NN=5.02 TeV is presented. The HΛ3 has been reconstructed via its two-charged-body decay channel, i.e., HΛ3→³He+π⁻. A Blast-Wave model fit of the p_T-differential spectra of all nuclear species measured by the ALICE collaboration suggests that the HΛ3 kinetic freeze-out surface is consistent with that of other nuclei. The ratio between the integrated yields of HΛ3 and He3 is compared to predictions from the statistical hadronisation model and the coalescence model, with the latter being favoured by the presented measurements.

Original language	English
Article number	139066
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	860
DOIs	https://doi.org/10.1016/j.physletb.2024.139066
State	Published - Jan 2025

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10.1016/j.physletb.2024.139066

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@article{1c61e9d761f14610bccabe27dd4b57ab,

title = "Measurement of HΛ3 production in Pb{\textendash}Pb collisions at sNN=5.02 TeV",

abstract = "The first measurement of HΛ3 and H‾Λ‾3 differential production with respect to transverse momentum and centrality in Pb{\textendash}Pb collisions at sNN=5.02 TeV is presented. The HΛ3 has been reconstructed via its two-charged-body decay channel, i.e., HΛ3→3He+π−. A Blast-Wave model fit of the pT-differential spectra of all nuclear species measured by the ALICE collaboration suggests that the HΛ3 kinetic freeze-out surface is consistent with that of other nuclei. The ratio between the integrated yields of HΛ3 and He3 is compared to predictions from the statistical hadronisation model and the coalescence model, with the latter being favoured by the presented measurements.",

author = "\{ALICE Collaboration\} and S. Acharya and D. Adamov{\'a} and A. Agarwal and \{Aglieri Rinella\}, G. and L. Aglietta and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, \{S. U.\} and I. Ahuja and A. Akindinov and V. Akishina and M. Al-Turany and D. Aleksandrov and B. Alessandro and Alfanda, \{H. M.\} and \{Alfaro Molina\}, R. and B. Ali and A. Alici and N. Alizadehvandchali and A. Alkin and J. Alme and G. Alocco and T. Alt and Altamura, \{A. R.\} and I. Altsybeev and Alvarado, \{J. R.\} and Alvarez, \{C. O.R.\} and Anaam, \{M. N.\} and C. Andrei and N. Andreou and A. Andronic and E. Andronov and V. Anguelov and F. Antinori and P. Antonioli and N. Apadula and L. Aphecetche and H. Appelsh{\"a}user and C. Arata and S. Arcelli and M. Aresti and R. Arnaldi and Arneiro, \{J. G.M.C.A.\} and Arsene, \{I. C.\} and M. Arslandok and A. Augustinus and R. Averbeck and B. Kim",

note = "Publisher Copyright: {\textcopyright} 2024 CERN for the benefit of the ALICE Collaboration",

year = "2025",

month = jan,

doi = "10.1016/j.physletb.2024.139066",

language = "English",

volume = "860",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Measurement of HΛ3 production in Pb–Pb collisions at sNN=5.02 TeV

AU - ALICE Collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Agarwal, A.

AU - Aglieri Rinella, G.

AU - Aglietta, L.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Ahuja, I.

AU - Akindinov, A.

AU - Akishina, V.

AU - Al-Turany, M.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfanda, H. M.

AU - Alfaro Molina, R.

AU - Ali, B.

AU - Alici, A.

AU - Alizadehvandchali, N.

AU - Alkin, A.

AU - Alme, J.

AU - Alocco, G.

AU - Alt, T.

AU - Altamura, A. R.

AU - Altsybeev, I.

AU - Alvarado, J. R.

AU - Alvarez, C. O.R.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andreou, N.

AU - Andronic, A.

AU - Andronov, E.

AU - Anguelov, V.

AU - Antinori, F.

AU - Antonioli, P.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arata, C.

AU - Arcelli, S.

AU - Aresti, M.

AU - Arnaldi, R.

AU - Arneiro, J. G.M.C.A.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Kim, B.

PY - 2025/1

Y1 - 2025/1

N2 - The first measurement of HΛ3 and H‾Λ‾3 differential production with respect to transverse momentum and centrality in Pb–Pb collisions at sNN=5.02 TeV is presented. The HΛ3 has been reconstructed via its two-charged-body decay channel, i.e., HΛ3→3He+π−. A Blast-Wave model fit of the pT-differential spectra of all nuclear species measured by the ALICE collaboration suggests that the HΛ3 kinetic freeze-out surface is consistent with that of other nuclei. The ratio between the integrated yields of HΛ3 and He3 is compared to predictions from the statistical hadronisation model and the coalescence model, with the latter being favoured by the presented measurements.

AB - The first measurement of HΛ3 and H‾Λ‾3 differential production with respect to transverse momentum and centrality in Pb–Pb collisions at sNN=5.02 TeV is presented. The HΛ3 has been reconstructed via its two-charged-body decay channel, i.e., HΛ3→3He+π−. A Blast-Wave model fit of the pT-differential spectra of all nuclear species measured by the ALICE collaboration suggests that the HΛ3 kinetic freeze-out surface is consistent with that of other nuclei. The ratio between the integrated yields of HΛ3 and He3 is compared to predictions from the statistical hadronisation model and the coalescence model, with the latter being favoured by the presented measurements.

UR - https://www.scopus.com/pages/publications/85212823857

U2 - 10.1016/j.physletb.2024.139066

DO - 10.1016/j.physletb.2024.139066

M3 - Article

AN - SCOPUS:85212823857

SN - 0370-2693

VL - 860

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 139066

ER -

Measurement of HΛ3 production in Pb–Pb collisions at s_NN=5.02 TeV

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