Multiplicity dependence of π , K, and p production in pp collisions at √s=13 TeV

ALICE Collaboration

doi:10.1140/epjc/s10052-020-8125-1

Multiplicity dependence of π , K, and p production in pp collisions at √s=13 TeV

ALICE Collaboration

Sección de Física

CERN
Variable Energy Cyclotron Centre
Czech Academy of Sciences
Goethe University Frankfurt
University of Lund
Panjab University
Politecnico di Torino
Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi
National Institute for Nuclear Physics
Department of Physics Aligarh Muslim University
Korea Institute of Science and Technology Information
Russian Research Centre Kurchatov Institute
GSI Helmholtzzentrum für Schwerionenforschung
Universidade Estadual de Campinas
Sezione INFN
Central China Normal University
Universidad Nacional Autónoma de México
COMSATS University Islamabad
Bogolyubov Institute for Theoretical Physics Nasu
University of Bergen
St. Petersburg State University
National Institute for Physics and Nuclear Engineering
University of Birmingham
University of Münster
Ruprecht-Karls-Universität Heidelberg
Creighton University
Ruder Boskovic Institute
Lawrence Berkeley National Laboratory
Nantes Université
University of Oslo
Centre de calcul de l'IN2P3
Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN
Gangneung-Wonju National University
University of Jammu
Université Paris-Saclay Centre d’Etudes de Saclay (CEA)
Rheinische Friedrich-Wilhelms-Universität Bonn
Technical University of Munich
Bose Institute
Wigner Research Centre for Physics
STFC Daresbury Laboratory
Université Clermont Auvergne
Wayne State University
Joint Institute for Nuclear Research
Indian Institute of Technology Bombay
University of Copenhagen
Yale University
Institute for Subatomic Physics of Utrecht University
Inha University
Université de Strasbourg
University of Houston
Moscow Engineering Physics Institute
Petersburg Nuclear Physics Institute (PNPI)
University of Tennessee
Institute of Space Science (ISS)
Gauhati University
INFN, Laboratori Nazionali Di Frascati
Faculty of Nuclear Sciences and Physical Engineering
Technische Universität München
University of Texas at Austin
University of Pavia
Oak Ridge National Laboratory
Pavol Jozef Šafárik University
Università di Brescia
Universidade de São Paulo
Polytechnic University of Bari
University of Liverpool
Russian Federal Nuclear Center (VNIIEF)
Austrian Academy of Sciences
National Research Foundation
University of the Witwatersrand
Ohio State University
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
National Institute for Subatomic Physics
Pontifical Catholic Univ. of Peru
Benemérita Universidad Autónoma de Puebla
Homi Bhabha National Institute
Universite Claude Bernard Lyon 1
University of Tsukuba
University of Cape Town
Université Grenoble Alpes
Università del Piemonte Orientale and Gruppo Collegato INFN
Universidade Federal do ABC
Warsaw University of Technology
Frankfurt Institute for Advanced Studies
Indian Institute of Technology Indore
National Centre for Nuclear Studies
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
University of California at Berkeley
RAS - Institute for Nuclear Research
University of Zagreb
Institute for High Energy Physics
Universidad Autonoma de Sinaloa
National and Kapodistrian University of Athens
Chicago State University
National Nuclear Research Center
Universidade Federal do Rio Grande do Sul
University of Split
A. Alikhanian Yerevan Institute of Physics
Tokyo University
Nagasaki Institute of Applied Science
Western Norway University of Applied Sciences
Centro de Investigación y de Estudios AVanzados (CINVESTAV)
Technical University of Košice
Slovak Academy of Sciences
KTO Karatay University
Zentrum für Technologietransfer und Telekommunikation (ZTT)
Yonsei University
University of Jyväskylä
Jeonbuk National University
Pusan National University
Sejong University
California Polytechnic State University, San Luis Obispo
Suranaree University of Technology
University of South-Eastern Norway
China Institute of Atomic Energy
Fudan University
Institute of Physics of the Czech Academy of Sciences
Università degli Studi di Foggia
University of Rome La Sapienza
Comenius University
Budker Institute for Nuclear Physics
University of Rajasthan
University of Helsinki
Eberhard Karls Universität Tübingen
Hiroshima University
Nara Women's University
Indonesian Institute of Sciences
Centre de Calcul de l’IN2P3
University of Science and Technology of China

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104 Citas (Scopus)

Resumen

This paper presents the measurements of π^±, K ^±, p and p ¯ transverse momentum (p_T) spectra as a function of charged-particle multiplicity density in proton–proton (pp) collisions at s=13TeV with the ALICE detector at the LHC. Such study allows us to isolate the center-of-mass energy dependence of light-flavour particle production. The measurements reported here cover a p_T range from 0.1 to 20 GeV / c and are done in the rapidity interval | y| < 0.5. The p_T-differential particle ratios exhibit an evolution with multiplicity, similar to that observed in pp collisions at s=7TeV, which is qualitatively described by some of the hydrodynamical and pQCD-inspired models discussed in this paper. Furthermore, the p_T-integrated hadron-to-pion yield ratios measured in pp collisions at two different center-of-mass energies are consistent when compared at similar multiplicities. This also extends to strange and multi-strange hadrons, suggesting that, at LHC energies, particle hadrochemistry scales with particle multiplicity the same way under different collision energies and colliding systems.

Idioma original	Inglés
Número de artículo	693
Publicación	European Physical Journal C
Volumen	80
N.º	8
DOI	https://doi.org/10.1140/epjc/s10052-020-8125-1
Estado	Publicada - 1 ago. 2020

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@article{0f89aa42a94746de897997d1087d4031,

title = "Multiplicity dependence of π , K, and p production in pp collisions at √s=13 TeV",

abstract = "This paper presents the measurements of π±, K ±, p and p ¯ transverse momentum (pT) spectra as a function of charged-particle multiplicity density in proton–proton (pp) collisions at s=13TeV with the ALICE detector at the LHC. Such study allows us to isolate the center-of-mass energy dependence of light-flavour particle production. The measurements reported here cover a pT range from 0.1 to 20 GeV / c and are done in the rapidity interval | y| < 0.5. The pT-differential particle ratios exhibit an evolution with multiplicity, similar to that observed in pp collisions at s=7TeV, which is qualitatively described by some of the hydrodynamical and pQCD-inspired models discussed in this paper. Furthermore, the pT-integrated hadron-to-pion yield ratios measured in pp collisions at two different center-of-mass energies are consistent when compared at similar multiplicities. This also extends to strange and multi-strange hadrons, suggesting that, at LHC energies, particle hadrochemistry scales with particle multiplicity the same way under different collision energies and colliding systems.",

author = "\{ALICE Collaboration\} and S. Acharya and D. Adamov{\'a} and A. Adler and J. Adolfsson and Aggarwal, \{M. M.\} and \{Aglieri Rinella\}, G. and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, \{S. U.\} and A. Akindinov and M. Al-Turany and Alam, \{S. N.\} and Albuquerque, \{D. S.D.\} and D. Aleksandrov and B. Alessandro and Alfanda, \{H. M.\} and \{Alfaro Molina\}, R. and B. Ali and Y. Ali and A. Alici and A. Alkin and J. Alme and T. Alt and L. Altenkamper and I. Altsybeev and Anaam, \{M. N.\} and C. Andrei and D. Andreou and Andrews, \{H. A.\} and A. Andronic and M. Angeletti and V. Anguelov and C. Anson and T. Anti{\v c}i{\'c} and F. Antinori and P. Antonioli and N. Apadula and L. Aphecetche and H. Appelsh{\"a}user and S. Arcelli and R. Arnaldi and M. Arratia and Arsene, \{I. C.\} and M. Arslandok and A. Augustinus and R. Averbeck and Alba, \{J. L.Bazo\} and Gago, \{A. M.\}",

note = "Publisher Copyright: {\textcopyright} 2020, CERN for the benefit of the ALICE collaboration.",

year = "2020",

month = aug,

day = "1",

doi = "10.1140/epjc/s10052-020-8125-1",

language = "English",

volume = "80",

journal = "European Physical Journal C",

issn = "1434-6044",

number = "8",

}

TY - JOUR

T1 - Multiplicity dependence of π , K, and p production in pp collisions at √s=13 TeV

AU - ALICE Collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Adler, A.

AU - Adolfsson, J.

AU - Aggarwal, M. M.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Alam, S. N.

AU - Albuquerque, D. S.D.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfanda, H. M.

AU - Alfaro Molina, R.

AU - Ali, B.

AU - Ali, Y.

AU - Alici, A.

AU - Alkin, A.

AU - Alme, J.

AU - Alt, T.

AU - Altenkamper, L.

AU - Altsybeev, I.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andreou, D.

AU - Andrews, H. A.

AU - Andronic, A.

AU - Angeletti, M.

AU - Anguelov, V.

AU - Anson, C.

AU - Antičić, T.

AU - Antinori, F.

AU - Antonioli, P.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arcelli, S.

AU - Arnaldi, R.

AU - Arratia, M.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Alba, J. L.Bazo

AU - Gago, A. M.

PY - 2020/8/1

Y1 - 2020/8/1

N2 - This paper presents the measurements of π±, K ±, p and p ¯ transverse momentum (pT) spectra as a function of charged-particle multiplicity density in proton–proton (pp) collisions at s=13TeV with the ALICE detector at the LHC. Such study allows us to isolate the center-of-mass energy dependence of light-flavour particle production. The measurements reported here cover a pT range from 0.1 to 20 GeV / c and are done in the rapidity interval | y| < 0.5. The pT-differential particle ratios exhibit an evolution with multiplicity, similar to that observed in pp collisions at s=7TeV, which is qualitatively described by some of the hydrodynamical and pQCD-inspired models discussed in this paper. Furthermore, the pT-integrated hadron-to-pion yield ratios measured in pp collisions at two different center-of-mass energies are consistent when compared at similar multiplicities. This also extends to strange and multi-strange hadrons, suggesting that, at LHC energies, particle hadrochemistry scales with particle multiplicity the same way under different collision energies and colliding systems.

AB - This paper presents the measurements of π±, K ±, p and p ¯ transverse momentum (pT) spectra as a function of charged-particle multiplicity density in proton–proton (pp) collisions at s=13TeV with the ALICE detector at the LHC. Such study allows us to isolate the center-of-mass energy dependence of light-flavour particle production. The measurements reported here cover a pT range from 0.1 to 20 GeV / c and are done in the rapidity interval | y| < 0.5. The pT-differential particle ratios exhibit an evolution with multiplicity, similar to that observed in pp collisions at s=7TeV, which is qualitatively described by some of the hydrodynamical and pQCD-inspired models discussed in this paper. Furthermore, the pT-integrated hadron-to-pion yield ratios measured in pp collisions at two different center-of-mass energies are consistent when compared at similar multiplicities. This also extends to strange and multi-strange hadrons, suggesting that, at LHC energies, particle hadrochemistry scales with particle multiplicity the same way under different collision energies and colliding systems.

UR - https://www.scopus.com/pages/publications/85088962855

U2 - 10.1140/epjc/s10052-020-8125-1

DO - 10.1140/epjc/s10052-020-8125-1

M3 - Article

AN - SCOPUS:85088962855

SN - 1434-6044

VL - 80

JO - European Physical Journal C

JF - European Physical Journal C

IS - 8

M1 - 693

ER -

Multiplicity dependence of π , K, and p production in pp collisions at √s=13 TeV

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