One-dimensional pion, kaon, and proton femtoscopy in Pb-Pb collisions at s NN =2.76 TeV

ALICE Collaboration

doi:10.1103/PhysRevC.92.054908

One-dimensional pion, kaon, and proton femtoscopy in Pb-Pb collisions at s NN =2.76 TeV

ALICE Collaboration

Sección de Física

Faculty of Nuclear Sciences and Physical Engineering
Czech Academy of Sciences
Panjab University
CERN
National Institute for Nuclear Physics
Indian Institute of Technology Bombay
Variable Energy Cyclotron Centre
Korea Institute of Science and Technology Information
Polytechnic University of Turin
Yale University
COMSATS University Islamabad
Alikhanov Institute for Theoretical and Experimental Physics
Russian Research Centre Kurchatov Institute
University of Birmingham
Universidad Nacional Autónoma de México
Enrico Fermi Center
NASU - Bogolyubov Institute for Theoretical Physics
Western Norway University of Applied Sciences
Goethe University Frankfurt
University of Bergen
St. Petersburg State University
Universidade de São Paulo
Horia Hulubei National Institute of Physics and Nuclear Engineering
GSI Helmholtz Centre for Heavy Ion Research
Heidelberg University
University of Münster
Ruder Boskovic Institute
Nantes Université
Universidad de Santiago de Compostela
University of Oslo
Aligarh Muslim University
Gangneung-Wonju National University
University of Jammu
IRFU
Institute of Physics Bhubaneswar
Hungarian Academy of Sciences
Université Clermont Auvergne
Central China Normal University
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
Joint Institute for Nuclear Research
University of Copenhagen
Indian Institute of Technology Indore
Université de Strasbourg
Benemerita Universidad Autonoma de Puebla
University of Houston
Wayne State University
Moscow Engineering Physics Institute
RAS - Saint Petersburg Nuclear Physics Institute
Utrecht University
Gauhati University
University of Tsukuba
Bose Institute
National Institute of Science Education and Research
CIEMAT
Lawrence Berkeley National Laboratory
Pavol Jozef Šafárik University
Pusan National University
STFC Daresbury Laboratory
National Research Foundation
National Institute for Subatomic Physics
Purdue University
University of Helsinki
All-Russian Scientific Research Institute of Experimental Physics
Ohio State University
Pontificia Universidad Católica del Perú
University of Tennessee, Knoxville
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
Technical University of Kosice
University of Jyväskylä
University of Liverpool
Saha Institute of Nuclear Physics
Creighton University
Universite Claude Bernard Lyon 1
Universidade Estadual de Campinas
Lund University
University of Cape Town
Slovak Academy of Sciences
Université Grenoble Alpes
Université Paris-Saclay
Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
Oak Ridge National Laboratory
University of Eastern Piedmont
Technische Universität München
Technical University of Munich
Institute for Space Sciences
National Centre for Nuclear Research
University of Zagreb
Institute for High Energy Physics
RAS - Institute for Nuclear Research
National and Kapodistrian University of Athens
Chicago State University
University of Split
Warsaw University of Technology
A. Alikhanian Yerevan Institute of Physics
The University of Tokyo
University of Tübingen
Sejong University
Yonsei University
KTO Karatay University
University of Applied Sciences Worms
California Polytechnic State University, San Luis Obispo
University of Texas at Austin
Suranaree University of Technology
Inha University
University of South-Eastern Norway
Universidad Autonoma de Sinaloa
China National Nuclear Corporation
Comenius University
University of Belgrade
Polytechnic University of Bari
Konkuk University
Hiroshima University
RAS - Budker Institute of Nuclear Physics
University of Rajasthan
Laboratori Nazionali di Legnaro
Lawrence Livermore National Laboratory
University of Kansas
Centre de calcul de l'IN2P3
University of the Witwatersrand

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Abstract

The size of the particle emission region in high-energy collisions can be deduced using the femtoscopic correlations of particle pairs at low relative momentum. Such correlations arise due to quantum statistics and Coulomb and strong final state interactions. In this paper, results are presented from femtoscopic analyses of π±π±,K±K±,KS0KS0,pp, and p¯p¯ correlations from Pb-Pb collisions at sNN=2.76 TeV by the ALICE experiment at the LHC. One-dimensional radii of the system are extracted from correlation functions in terms of the invariant momentum difference of the pair. The comparison of the measured radii with the predictions from a hydrokinetic model is discussed. The pion and kaon source radii display a monotonic decrease with increasing average pair transverse mass mT which is consistent with hydrodynamic model predictions for central collisions. The kaon and proton source sizes can be reasonably described by approximate mT scaling. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Original language	English
Article number	054908
Journal	Physical Review C - Nuclear Physics
Volume	92
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.92.054908
State	Published - 19 Nov 2015

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10.1103/PhysRevC.92.054908

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@article{a65e0a0ab0054c5c8120786349248f7e,

title = "One-dimensional pion, kaon, and proton femtoscopy in Pb-Pb collisions at s NN =2.76 TeV",

abstract = "The size of the particle emission region in high-energy collisions can be deduced using the femtoscopic correlations of particle pairs at low relative momentum. Such correlations arise due to quantum statistics and Coulomb and strong final state interactions. In this paper, results are presented from femtoscopic analyses of π±π±,K±K±,KS0KS0,pp, and p¯p¯ correlations from Pb-Pb collisions at sNN=2.76 TeV by the ALICE experiment at the LHC. One-dimensional radii of the system are extracted from correlation functions in terms of the invariant momentum difference of the pair. The comparison of the measured radii with the predictions from a hydrokinetic model is discussed. The pion and kaon source radii display a monotonic decrease with increasing average pair transverse mass mT which is consistent with hydrodynamic model predictions for central collisions. The kaon and proton source sizes can be reasonably described by approximate mT scaling. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

author = "\{ALICE Collaboration\} and J. Adam and D. Adamov{\'a} and Aggarwal, \{M. M.\} and \{Aglieri Rinella\}, G. and M. Agnello and N. Agrawal and Z. Ahammed and Ahn, \{S. U.\} and I. Aimo and S. Aiola and M. Ajaz and A. Akindinov and Alam, \{S. N.\} and D. Aleksandrov and B. Alessandro and D. Alexandre and \{Alfaro Molina\}, R. and A. Alici and A. Alkin and J. Alme and T. Alt and S. Altinpinar and I. Altsybeev and \{Alves Garcia Prado\}, C. and C. Andrei and A. Andronic and V. Anguelov and J. Anielski and T. Anti{\v c}i{\'c} and F. Antinori and P. Antonioli and L. Aphecetche and H. Appelsh{\"a}user and S. Arcelli and N. Armesto and R. Arnaldi and Arsene, \{I. C.\} and M. Arslandok and B. Audurier and A. Augustinus and R. Averbeck and Azmi, \{M. D.\} and M. Bach and A. Badal{\`a} and Baek, \{Y. W.\} and S. Bagnasco and R. Bailhache and R. Bala and A. Baldisseri and Gago, \{A. M.\}",

note = "Publisher Copyright: {\textcopyright} 2015 CERN.",

year = "2015",

month = nov,

day = "19",

doi = "10.1103/PhysRevC.92.054908",

language = "English",

volume = "92",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "5",

}

TY - JOUR

T1 - One-dimensional pion, kaon, and proton femtoscopy in Pb-Pb collisions at s NN =2.76 TeV

AU - ALICE Collaboration

AU - Adam, J.

AU - Adamová, D.

AU - Aggarwal, M. M.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahn, S. U.

AU - Aimo, I.

AU - Aiola, S.

AU - Ajaz, M.

AU - Akindinov, A.

AU - Alam, S. N.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alexandre, D.

AU - Alfaro Molina, R.

AU - Alici, A.

AU - Alkin, A.

AU - Alme, J.

AU - Alt, T.

AU - Altinpinar, S.

AU - Altsybeev, I.

AU - Alves Garcia Prado, C.

AU - Andrei, C.

AU - Andronic, A.

AU - Anguelov, V.

AU - Anielski, J.

AU - Antičić, T.

AU - Antinori, F.

AU - Antonioli, P.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arcelli, S.

AU - Armesto, N.

AU - Arnaldi, R.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Audurier, B.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Azmi, M. D.

AU - Bach, M.

AU - Badalà, A.

AU - Baek, Y. W.

AU - Bagnasco, S.

AU - Bailhache, R.

AU - Bala, R.

AU - Baldisseri, A.

AU - Gago, A. M.

PY - 2015/11/19

Y1 - 2015/11/19

N2 - The size of the particle emission region in high-energy collisions can be deduced using the femtoscopic correlations of particle pairs at low relative momentum. Such correlations arise due to quantum statistics and Coulomb and strong final state interactions. In this paper, results are presented from femtoscopic analyses of π±π±,K±K±,KS0KS0,pp, and p¯p¯ correlations from Pb-Pb collisions at sNN=2.76 TeV by the ALICE experiment at the LHC. One-dimensional radii of the system are extracted from correlation functions in terms of the invariant momentum difference of the pair. The comparison of the measured radii with the predictions from a hydrokinetic model is discussed. The pion and kaon source radii display a monotonic decrease with increasing average pair transverse mass mT which is consistent with hydrodynamic model predictions for central collisions. The kaon and proton source sizes can be reasonably described by approximate mT scaling. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

AB - The size of the particle emission region in high-energy collisions can be deduced using the femtoscopic correlations of particle pairs at low relative momentum. Such correlations arise due to quantum statistics and Coulomb and strong final state interactions. In this paper, results are presented from femtoscopic analyses of π±π±,K±K±,KS0KS0,pp, and p¯p¯ correlations from Pb-Pb collisions at sNN=2.76 TeV by the ALICE experiment at the LHC. One-dimensional radii of the system are extracted from correlation functions in terms of the invariant momentum difference of the pair. The comparison of the measured radii with the predictions from a hydrokinetic model is discussed. The pion and kaon source radii display a monotonic decrease with increasing average pair transverse mass mT which is consistent with hydrodynamic model predictions for central collisions. The kaon and proton source sizes can be reasonably described by approximate mT scaling. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

UR - https://www.scopus.com/pages/publications/84948675616

U2 - 10.1103/PhysRevC.92.054908

DO - 10.1103/PhysRevC.92.054908

M3 - Article

AN - SCOPUS:84948675616

SN - 0556-2813

VL - 92

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 5

M1 - 054908

ER -

One-dimensional pion, kaon, and proton femtoscopy in Pb-Pb collisions at s NN =2.76 TeV

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