Measurement of the fraction of jet longitudinal momentum carried by Λc+ baryons in pp collisions

ALICE Collaboration

doi:10.1103/PhysRevD.109.072005

Measurement of the fraction of jet longitudinal momentum carried by Λc+ baryons in pp collisions

ALICE Collaboration

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

Abstract

Recent measurements of charm-baryon production in hadronic collisions have questioned the universality of charm-quark fragmentation across different collision systems. In this work the fragmentation of charm quarks into charm baryons is probed, by presenting the first measurement of the longitudinal jet momentum fraction carried by Λc+ baryons, z∥ch, in hadronic collisions. The results are obtained in proton-proton (pp) collisions at s=13 TeV at the LHC, with Λc+ baryons and charged (track-based) jets reconstructed in the transverse momentum intervals of 3≤pTΛc+<15 GeV/c and 7≤pTjet ch<15 GeV/c, respectively. The z∥ch distribution is compared to a measurement of D0-tagged charged jets in pp collisions as well as to pythia 8 simulations. The data hints that the fragmentation of charm quarks into charm baryons is softer with respect to charm mesons, in the measured kinematic interval, as predicted by hadronization models which include color correlations beyond leading-color in the string formation.

Original language	English
Article number	072005
Journal	Physical Review D
Volume	109
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.109.072005
Publication status	Published - 1 Apr 2024

Bibliographical note

Publisher Copyright:
© 2024 CERN.

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 Cientifico 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 2020-2027 (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; Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic; The Danish Council for Independent Research | 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 Nucl ' eaire 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), UniversityGrantsCommission, 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; Commission on Science and Technology for Sustainable Development in the South (COMSATS), Pakistan; Pontificia Universidad Catolica del Peru, Peru; Ministry of Education and Science, 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 Dev elopment 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 theUnited States ofAmerica (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: European Research Council, Strong 2020-Horizon 2020, Marie Sklodowska Curie (Grants No. 950692, No. 824093, No. 896850), European Union; Academy of Finland (Center of Excellence in Quark Matter) (Grants No. 346327, No. 346328), Finland; Programa de Apoyos para la Superacion del Personal Acad ' emico, UNAM, Mexico.

Funders	Funder number
A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation (ANSL), Armenia
State Committee of Science, Armenia
World Federation of Scientists (WFS), Armenia
Austrian Science Fund (FWF), Austria
Nationalstiftung fur Forschung, Technologie und Entwicklung, Austria
Ministry of Communications and High Technologies, National Nuclear Research Center, Azerbaijan
Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil
Financiadora de Estudos e Projetos (Finep), Brazil
Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Brazil
Universidade Federal do Rio Grande do Sul (UFRGS), Brazil
Bulgarian Ministry of Education and Science, within the National Roadmap for Research Infrastructures 2020-2027 (object CERN), Bulgaria
Ministry of Science & Technology of China (MSTC), China
National Natural Science Foundation of China (NSFC), China
Croatian Science Foundation, Croatia
Centro de Aplicaciones Tecnologicas y Desarrollo Nuclear (CEADEN), Cubaenergia, Cuba
Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic
Danish Council for Independent Research \| Natural Sciences, Denmark
VILLUM FONDEN, Denmark
Danish National Research Foundation (DNRF), Denmark
Helsinki Institute of Physics (HIP), Finland
Commissariat a l'Energie Atomique (CEA), France
Centre National de la Recherche Scientifique (CNRS), France
Bundesministerium fur Bildung und Forschung (BMBF), Germany
GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Germany
Council of Scientific and Industrial Research (CSIR), India
Istituto Nazionale di Fisica Nucleare (INFN), Italy
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), Mexico
Direccion General de Asuntos del Personal Academico (DGAPA), Mexico
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands
Research Council of Norway, Norway
Commission on Science and Technology for Sustainable Development in the South (COMSATS), Pakistan
Pontificia Universidad Catolica del Peru, Peru
Ministry of Education and Science, Poland
National Science Centre, Poland
WUT ID-UB, Poland
Korea Institute of Science and Technology Information, Republic of Korea
National Research Foundation of Korea (NRF), Republic of Korea
Austrian Academy of Sciences, Austria
Ministry of Education and Scientific Research, Romania
Institute of Atomic Physics, Romania
Ministry of Research and Innovation, Romania
University Politehnica of Bucharest, 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), Sweden
Knut & Alice Wallenberg Foundation (KAW), Sweden
European Organization for Nuclear Research, Switzerland
Suranaree University of Technology (SUT), Thailand
National Science and Technology Development Agency (NSTDA), Thailand
Thailand Science Research and Innovation (TSRI) , Thailand
National Science, Research and Innovation Fund (NSRF), 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) , United States of America
United States Department of Energy, Office of Nuclear Physics (DOE NP), United States of America
European Union
Strong 2020 - Horizon 2020, European Union
European Research Council , European Union	824093, 896850, 950692
Academy of Finland (Center of Excellence in Quark Matter), Finland	346327, 346328
Programa de Apoyos para la Superacion del Personal Academico, UNAM, Mexico
Ministry of Education of China (MOEC) , China
Ministry of Science and Education, Croatia
Institut National de Physique Nucleaire et de Physique des Particules (IN2P3), France
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)
National Research and Innovation Agency - BRIN, Indonesia
Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan

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10.1103/PhysRevD.109.072005Licence: CC BY

PhysRevD.109.072005Final published version, 15.6 MBLicence: CC BY

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@article{2ed93da9ba1e4c3aaf7ffcc3b1177d73,

title = "Measurement of the fraction of jet longitudinal momentum carried by Λc+ baryons in pp collisions",

abstract = "Recent measurements of charm-baryon production in hadronic collisions have questioned the universality of charm-quark fragmentation across different collision systems. In this work the fragmentation of charm quarks into charm baryons is probed, by presenting the first measurement of the longitudinal jet momentum fraction carried by Λc+ baryons, z∥ch, in hadronic collisions. The results are obtained in proton-proton (pp) collisions at s=13 TeV at the LHC, with Λc+ baryons and charged (track-based) jets reconstructed in the transverse momentum intervals of 3≤pTΛc+<15 GeV/c and 7≤pTjet ch<15 GeV/c, respectively. The z∥ch distribution is compared to a measurement of D0-tagged charged jets in pp collisions as well as to pythia 8 simulations. The data hints that the fragmentation of charm quarks into charm baryons is softer with respect to charm mesons, in the measured kinematic interval, as predicted by hadronization models which include color correlations beyond leading-color in the string formation.",

author = "\{ALICE Collaboration\} and S. Acharya and D. Adamov{\'a} and A. Adler and \{Aglieri Rinella\}, G. and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, \{S. U.\} and I. Ahuja and A. Akindinov 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 I. Altsybeev and Alvarado, \{J. R.\} and Anaam, \{M. N.\} and C. Andrei and A. Andronic 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 P. Christakoglou and A. Grelli and Keijdener, \{D. L.D.\} and Kuijer, \{P. G.\} and Mohanty, \{A. P.\} and T. Peitzmann and S. Qiu and Snellings, \{R. J.M.\} and \{Van Doremalen\}, \{L. V.R.\} and M. Verweij and \{Pliatskas Stylianidis\}, Christos and Bas Hofman and \{van Weelden\}, Gijs and Rik Spijkers and Johanna L{\"o}mker and Artem Isakov and \{van Leeuwen\}, Marco",

note = "Publisher Copyright: {\textcopyright} 2024 CERN.",

year = "2024",

month = apr,

day = "1",

doi = "10.1103/PhysRevD.109.072005",

language = "English",

volume = "109",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Institute of Physics",

number = "7",

}

TY - JOUR

T1 - Measurement of the fraction of jet longitudinal momentum carried by Λc+ baryons in pp collisions

AU - ALICE Collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Adler, A.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Ahuja, I.

AU - Akindinov, A.

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 - Altsybeev, I.

AU - Alvarado, J. R.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andronic, A.

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 - Christakoglou, P.

AU - Grelli, A.

AU - Keijdener, D. L.D.

AU - Kuijer, P. G.

AU - Mohanty, A. P.

AU - Peitzmann, T.

AU - Qiu, S.

AU - Snellings, R. J.M.

AU - Van Doremalen, L. V.R.

AU - Verweij, M.

AU - Pliatskas Stylianidis, Christos

AU - Hofman, Bas

AU - van Weelden, Gijs

AU - Spijkers, Rik

AU - Lömker, Johanna

AU - Isakov, Artem

AU - van Leeuwen, Marco

PY - 2024/4/1

Y1 - 2024/4/1

N2 - Recent measurements of charm-baryon production in hadronic collisions have questioned the universality of charm-quark fragmentation across different collision systems. In this work the fragmentation of charm quarks into charm baryons is probed, by presenting the first measurement of the longitudinal jet momentum fraction carried by Λc+ baryons, z∥ch, in hadronic collisions. The results are obtained in proton-proton (pp) collisions at s=13 TeV at the LHC, with Λc+ baryons and charged (track-based) jets reconstructed in the transverse momentum intervals of 3≤pTΛc+<15 GeV/c and 7≤pTjet ch<15 GeV/c, respectively. The z∥ch distribution is compared to a measurement of D0-tagged charged jets in pp collisions as well as to pythia 8 simulations. The data hints that the fragmentation of charm quarks into charm baryons is softer with respect to charm mesons, in the measured kinematic interval, as predicted by hadronization models which include color correlations beyond leading-color in the string formation.

AB - Recent measurements of charm-baryon production in hadronic collisions have questioned the universality of charm-quark fragmentation across different collision systems. In this work the fragmentation of charm quarks into charm baryons is probed, by presenting the first measurement of the longitudinal jet momentum fraction carried by Λc+ baryons, z∥ch, in hadronic collisions. The results are obtained in proton-proton (pp) collisions at s=13 TeV at the LHC, with Λc+ baryons and charged (track-based) jets reconstructed in the transverse momentum intervals of 3≤pTΛc+<15 GeV/c and 7≤pTjet ch<15 GeV/c, respectively. The z∥ch distribution is compared to a measurement of D0-tagged charged jets in pp collisions as well as to pythia 8 simulations. The data hints that the fragmentation of charm quarks into charm baryons is softer with respect to charm mesons, in the measured kinematic interval, as predicted by hadronization models which include color correlations beyond leading-color in the string formation.

UR - https://www.scopus.com/pages/publications/85189921275

U2 - 10.1103/PhysRevD.109.072005

DO - 10.1103/PhysRevD.109.072005

M3 - Article

AN - SCOPUS:85189921275

SN - 2470-0010

VL - 109

JO - Physical Review D

JF - Physical Review D

IS - 7

M1 - 072005

ER -

Measurement of the fraction of jet longitudinal momentum carried by Λc+ baryons in pp collisions

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