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

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

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
Pages (from-to)	1-13
Number of pages	13
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	860
DOIs	https://doi.org/10.1016/j.physletb.2024.139066
Publication status	Published - Jan 2025

Bibliographical note

Publisher Copyright:
© 2024 CERN for the benefit of the ALICE Collaboration

Funding

The ALICE Collaboration would like to thank all its engineers and technicians for their invaluable contributions to the construction of the experiment and the CERN accelerator teams for the outstanding performance of the LHC complex. The ALICE Collaboration gratefully acknowledges the resources and support provided by all Grid centres and the Worldwide LHC Computing Grid (WLCG) collaboration. The ALICE Collaboration acknowledges the following funding agencies for their support in building and running the ALICE detector: A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation (ANSL), State Committee of Science and World Federation of Scientists (WFS), Armenia; Austrian Academy of Sciences, Austrian Science Fund (FWF): [M 2467-N36] and Nationalstiftung fur Forschung, Technologie und Entwicklung, Austria; Ministry of Communications and High Technologies, National Nuclear Research Center, Azerbaijan; Conselho Nacional de Desenvolvimento Cientfico e Tecnologico (CNPq), Financiadora de Estudos e Projetos (Finep), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) and Universidade Federal do Rio Grande do Sul (UFRGS), Brazil; Bulgarian Ministry of Education and Science, within the National Roadmap for Research Infrastructures 20202027 (object CERN), Bulgaria; Ministry of Education of China (MOEC), Ministry of Science & Technology of China (MSTC) and National Natural Science Foundation of China (NSFC), China; Ministry of Science and Education and Croatian Science Foundation, Croatia; Centro de Aplicaciones Tecnologicas y Desarrollo Nuclear (CEADEN), Cubaenergia, Cuba; The Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic; The Danish Council for Independent Research vertical bar Natural Sciences, the Villum Fonden and Danish National Research Foundation (DNRF), Denmark; Helsinki Institute of Physics (HIP), Finland; Commissariat a l'Energie Atomique (CEA) and Institut National de Physique Nucleaire et de Physique des Particules (IN2P3) and Centre National de la Recherche Scientifique (CNRS), France; Bundesministerium fur Bildung und Forschung (BMBF) and GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Germany; General Secretariat for Research and Technology, Ministry of Education, Research and Religions, Greece; National Research, Development and Innovation Office, Hungary; Department of Atomic Energy, Government of India (DAE), Department of Science and Technology, Government of India (DST), University Grants Commission, Government of India (UGC) and Council of Scientific and Industrial Research (CSIR), India; National Research and Innovation Agency - BRIN, Indonesia; Istituto Nazionale di Fisica Nucleare (INFN), Italy; Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and Japan Society for the Promotion of Science (JSPS) KAKENHI, Japan; Consejo Nacional de Ciencia (CONACYT) y Tecnologia, through Fondo de Cooperacion Internacional en Ciencia y Tecnologia (FONCICYT) and Direccion General de Asuntos del Personal Academico (DGAPA), Mexico; Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands; The Research Council of Norway, Norway; Pontificia Universidad Catolica del Peru, Peru; Ministry of Science and Higher Education, National Science Centre and WUT ID-UB, Poland; Korea Institute of Science and Technology Information and National Research Foundation of Korea (NRF), Republic of Korea; Ministry of Education and Scientific Research, Institute of Atomic Physics, Ministry of Research and Innovation and Institute of Atomic Physics and Universitatea Nationala de Stiinta si Tehnologie Politehnica Bucuresti, Romania; Ministry of Education, Science, Research and Sport of the Slovak Republic, Slovakia; National Research Foundation of South Africa, South Africa; Swedish Research Council (VR) and Knut & Alice Wallenberg Foundation (KAW), Sweden; European Organization for Nuclear Research, Switzerland; Suranaree University of Technology (SUT), National Science and Technology Development Agency (NSTDA) and National Science, Research and Innovation Fund (NSRF via PMU -B B05F650021), Thailand; Turkish Energy, Nuclear and Mineral Research Agency (TENMAK), Turkey; National Academy of Sciences of Ukraine, Ukraine; Science and Technology Facilities Council (STFC), United Kingdom; National Science Foundation of the United States of America (NSF) and United States Department of Energy, Office of Nuclear Physics (DOE NP), United States of America. In addition, individual groups or members have received support from: Czech Science Foundation (grant no. 23-07499S), Czech Republic; European Research Council (grant no. 950692), European Union; ICSC - Centro Nazionale di Ricerca in High Performance Computing, Big Data and Quantum Computing, European Union - NextGenerationEU; Academy of Finland (Center of Excellence in Quark Matter) (grant nos. 346327, 346328), Finland.

Funders	Funder number
Worldwide LHC Computing Grid (WLCG) collaboration
ALICE detector: A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation (ANSL), State Committee of Science and World Federation of Scientists (WFS), Armenia
Austrian Academy of Sciences, Austrian Science Fund (FWF)	M 2467-N36
Nationalstiftung fur Forschung, Technologie und Entwicklung, Austria
Ministry of Communications and High Technologies, National Nuclear Research Center
Conselho Nacional de Desenvolvimento Cientfico e Tecnologico (CNPq)
Financiadora de Estudos e Projetos (Finep)
Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
Universidade Federal do Rio Grande do Sul (UFRGS), Brazil
Bulgarian Ministry of Education and Science, within the National Roadmap
Ministry of Education of China (MOEC), Ministry of Science & Technology of China (MSTC)
National Natural Science Foundation of China (NSFC), China
Ministry of Science and Education and Croatian Science Foundation, Croatia
Centro de Aplicaciones Tecnologicas y Desarrollo Nuclear (CEADEN)
Cubaenergia
Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic
VILLUM FONDEN
Danish National Research Foundation (DNRF), Denmark
Helsinki Institute of Physics (HIP), Finland
Commissariat a l'Energie Atomique (CEA)
Centre National de la Recherche Scientifique (CNRS), France
Bundesministerium fur Bildung und Forschung (BMBF)
Department of Atomic Energy, Government of India (DAE), Department of Science and Technology, Government of India (DST), University Grants Commission, Government of India
National Research and Innovation Agency - BRIN, Indonesia
Istituto Nazionale di Fisica Nucleare (INFN), Italy
Japan Society for the Promotion of Science (JSPS) KAKENHI, Japan
Direccion General de Asuntos del Personal Academico (DGAPA), Mexico
Research Council of Norway
Pontificia Universidad Catolica del Peru
Ministry of Science and Higher Education, National Science Centre
National Research Foundation of South Africa
Swedish Research Council (VR)
Knut & Alice Wallenberg Foundation (KAW), Sweden
National Science and Technology Development Agency (NSTDA)
National Science, Research and Innovation Fund (NSRF)	PMU-B B05F650021
Turkish Energy, Nuclear and Mineral Research Agency
United States Department of Energy
Czech Science Foundation	23-07499S
Czech Republic
European Research Council	950692
European Union
ICSC - Centro Nazionale di Ricerca in High Performance Computing, Big Data and Quantum Computing, European Union
Academy of Finland (Center of Excellence in Quark Matter)	346327, 346328

Access to Document

10.1016/j.physletb.2024.139066Licence: CC BY

1-s2.0-S0370269324006245-mainFinal published version, 2.7 MBLicence: CC BY

Cite this

@article{8f597b62029c4452a218207312d161f1,

title = "Measurement of HΛ3 production in Pb–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–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 S. Basu and A. Caliva and P. Christakoglou and T. Chujo and A. Dobrin and L. Fabbietti and A. Grelli and R. Gupta and Jacobs, {P. M.} and S. Jaelani and J. Klein and C. Kuhn and Kuijer, {P. G.} and {La Pointe}, {S. L.} and G. Luparello and S. Muhuri and T. Peitzmann and N. Poljak and S. Qiu and Sas, {M. H.P.} and Snellings, {R. J.M.} and D. Thomas and {van Doremalen}, {L. V.R.} and L. Vermunt and M. Verweij and Wessels, {J. P.} and Z. Yin and X. Zhang and D. Zhou and Johanna L{\"o}mker and Olaf Massen and Bas Hofman and {van Weelden}, Gijs and {van Leeuwen}, Marco and {Pliatskas Stylianidis}, Christos and Rik Spijkers and Mariia Selina and Justus Rudolph and Noor Koster and Artem Isakov",

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",

pages = "1--13",

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

issn = "0370-2693",

publisher = "Elsevier",

}

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 - Basu, S.

AU - Caliva, A.

AU - Christakoglou, P.

AU - Chujo, T.

AU - Dobrin, A.

AU - Fabbietti, L.

AU - Grelli, A.

AU - Gupta, R.

AU - Jacobs, P. M.

AU - Jaelani, S.

AU - Klein, J.

AU - Kuhn, C.

AU - Kuijer, P. G.

AU - La Pointe, S. L.

AU - Luparello, G.

AU - Muhuri, S.

AU - Peitzmann, T.

AU - Poljak, N.

AU - Qiu, S.

AU - Sas, M. H.P.

AU - Snellings, R. J.M.

AU - Thomas, D.

AU - van Doremalen, L. V.R.

AU - Vermunt, L.

AU - Verweij, M.

AU - Wessels, J. P.

AU - Yin, Z.

AU - Zhang, X.

AU - Zhou, D.

AU - Lömker, Johanna

AU - Massen, Olaf

AU - Hofman, Bas

AU - van Weelden, Gijs

AU - van Leeuwen, Marco

AU - Pliatskas Stylianidis, Christos

AU - Spijkers, Rik

AU - Selina, Mariia

AU - Rudolph, Justus

AU - Koster, Noor

AU - Isakov, Artem

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 - http://www.scopus.com/inward/record.url?scp=85212823857&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2024.139066

DO - 10.1016/j.physletb.2024.139066

M3 - Article

AN - SCOPUS:85212823857

SN - 0370-2693

VL - 860

SP - 1

EP - 13

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 -