Measurement of K⁎(892)± production in inelastic pp collisions at the LHC

ALICE Collaboration

doi:10.1016/j.physletb.2022.137013

Measurement of K^⁎(892)^± production in inelastic pp collisions at the LHC

ALICE Collaboration

Sección de Física

Variable Energy Cyclotron Centre
Czech Academy of Sciences
Goethe University Frankfurt
Lund University
CERN
National Institute for Nuclear Physics
Aligarh Muslim University
Korea Institute of Science and Technology Information
Pavol Jozef Šafárik University
Indonesian Institute of Sciences
Russian Research Centre Kurchatov Institute
GSI Helmholtz Centre for Heavy Ion Research
Fudan University
Central China Normal University
Universidad Nacional Autónoma de México
COMSATS University Islamabad
University of Houston
University of Bergen
St. Petersburg State University
Horia Hulubei National Institute of Physics and Nuclear Engineering
National Institute for Subatomic Physics
University of Münster
Heidelberg University
Lawrence Berkeley National Laboratory
Nantes Université
University of Oslo
Yale University
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
Gangneung-Wonju National University
University of Science and Technology of China
Indian Institute of Technology Indore
University of Jammu
Université Paris-Saclay
AGH University of Krakow
University of Bonn
Bose Institute
University of Catania
Technical University of Munich
National and Kapodistrian University of Athens
Wigner Research Centre for Physics
STFC Daresbury Laboratory
Université Clermont Auvergne
University of Liverpool
Joint Institute for Nuclear Research
Indian Institute of Technology Bombay
University of Copenhagen
Université de Strasbourg
Moscow Engineering Physics Institute
RAS - Saint Petersburg Nuclear Physics Institute
Institute for Space Sciences
Gauhati University
Faculty of Nuclear Sciences and Physical Engineering
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
University of Texas at Austin
University of Pavia
Oak Ridge National Laboratory
Inha University
University of Brescia
Moscow Institute of Physics and Technology
Universidade de São Paulo
Polytechnic University of Bari
All-Russian Scientific Research Institute of Experimental Physics
Austrian Academy of Sciences
National Research Foundation
University of the Witwatersrand
Pontificia Universidad Católica del Perú
Universidad Autonoma de Sinaloa
Benemerita Universidad Autonoma de Puebla
Homi Bhabha National Institute
Université de Lyon
Universidade Estadual de Campinas
University of Tsukuba
University of Cape Town
University of Birmingham
Université Grenoble Alpes
University of Eastern Piedmont
Universidade Federal do ABC
Warsaw University of Technology
University of California at Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
RAS - Institute for Nuclear Research
Panjab University
Comenius University
University of Zagreb
Institute for High Energy Physics
Chicago State University
National Nuclear Research Center
University of Kansas
Universidade Federal do Rio Grande do Sul
Nagasaki Institute of Applied Science
Wayne State University
University of Split
Utrecht University
A. Alikhanian Yerevan Institute of Physics
The University of Tokyo
Western Norway University of Applied Sciences
Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
Yonsei University
Creighton University
University of Tennessee, Knoxville
Ohio State University
Technical University of Kosice
Suranaree University of Technology
Slovak Academy of Sciences
KTO Karatay University
Zentrum für Technologietransfer und Telekommunikation (ZTT)
Pusan National University
University of Jyväskylä
Jeonbuk National University
Sejong University
California Polytechnic State University, San Luis Obispo
National Centre for Nuclear Research
University of South-Eastern Norway
China National Nuclear Corporation
University of Messina
University of Foggia
University of Rome La Sapienza
Chungbuk National University
Hiroshima University
RAS - Budker Institute of Nuclear Physics
University of Rajasthan
University of Helsinki
University of Tübingen
Nara Women's University
NASU - Bogolyubov Institute for Theoretical Physics

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

13 Scopus citations

Abstract

The first results on K^⁎(892)^± resonance production in inelastic pp collisions at LHC energies of s=5.02, 8, and 13 TeV are presented. The K^⁎(892)^± has been reconstructed via its hadronic decay channel K^⁎(892)→±K_S⁰+π^± with the ALICE detector. Measurements of transverse momentum distributions, p_T-integrated yields, and mean transverse momenta for charged K^⁎(892) are found to be consistent with previous ALICE measurements for neutral K^⁎(892) within uncertainties. For p_T>1 GeV/c the K^⁎(892)^± transverse momentum spectra become harder with increasing centre-of-mass energy from 5.02 to 13 TeV, similar to what previously observed for charged kaons and pions. For p_T<1 GeV/c the K^⁎(892)^± yield does not evolve significantly and the abundance of K^⁎(892)^± relative to K is rather independent of the collision energy. The transverse momentum spectra, measured for K^⁎(892)^± at midrapidity in the interval 0 < p_T<15 GeV/c, are not well described by predictions of different versions of PYTHIA 6, PYTHIA 8 and EPOS-LHC event generators. These generators reproduce the measured p_T-integrated K^⁎±/K ratios and describe well the momentum dependence for p_T<2 GeV/c.

Original language	English
Article number	137013
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	828
DOIs	https://doi.org/10.1016/j.physletb.2022.137013
State	Published - 10 May 2022

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10.1016/j.physletb.2022.137013

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@article{83926de663f64fbf812b6f29030cba4d,

title = "Measurement of K⁎(892)± production in inelastic pp collisions at the LHC",

abstract = "The first results on K⁎(892)± resonance production in inelastic pp collisions at LHC energies of s=5.02, 8, and 13 TeV are presented. The K⁎(892)± has been reconstructed via its hadronic decay channel K⁎(892)→±KS0+π± with the ALICE detector. Measurements of transverse momentum distributions, pT-integrated yields, and mean transverse momenta for charged K⁎(892) are found to be consistent with previous ALICE measurements for neutral K⁎(892) within uncertainties. For pT>1 GeV/c the K⁎(892)± transverse momentum spectra become harder with increasing centre-of-mass energy from 5.02 to 13 TeV, similar to what previously observed for charged kaons and pions. For pT<1 GeV/c the K⁎(892)± yield does not evolve significantly and the abundance of K⁎(892)± relative to K is rather independent of the collision energy. The transverse momentum spectra, measured for K⁎(892)± at midrapidity in the interval 0 < pT<15 GeV/c, are not well described by predictions of different versions of PYTHIA 6, PYTHIA 8 and EPOS-LHC event generators. These generators reproduce the measured pT-integrated K⁎±/K ratios and describe well the momentum dependence for pT<2 GeV/c.",

author = "\{ALICE Collaboration\} and S. Acharya and D. Adamov{\'a} and A. Adler and J. Adolfsson and \{Aglieri Rinella\}, G. and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, \{S. U.\} and I. Ahuja and Z. Akbar and A. Akindinov and M. Al-Turany and Alam, \{S. N.\} and D. Aleksandrov and B. Alessandro and Alfanda, \{H. M.\} and \{Alfaro Molina\}, R. and B. Ali and Y. Ali and A. Alici and N. Alizadehvandchali 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 A. Andronic and M. Angeletti and V. Anguelov and F. Antinori and P. Antonioli and C. Anuj and N. Apadula and L. Aphecetche and H. Appelsh{\"a}user and S. Arcelli and R. Arnaldi and Arsene, \{I. C.\} and M. Arslandok and A. Augustinus and R. Averbeck and S. Aziz and Azmi, \{M. D.\} and \{Bazo Alba\}, \{J. L.\} and Gago, \{A. M.\}",

note = "Publisher Copyright: {\textcopyright} 2022 European Organization for Nuclear Research",

year = "2022",

month = may,

day = "10",

doi = "10.1016/j.physletb.2022.137013",

language = "English",

volume = "828",

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

issn = "0370-2693",

}

TY - JOUR

T1 - Measurement of K⁎(892)± production in inelastic pp collisions at the LHC

AU - ALICE Collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Adler, A.

AU - Adolfsson, J.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Ahuja, I.

AU - Akbar, Z.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Alam, S. N.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfanda, H. M.

AU - Alfaro Molina, R.

AU - Ali, B.

AU - Ali, Y.

AU - Alici, A.

AU - Alizadehvandchali, N.

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 - Andronic, A.

AU - Angeletti, M.

AU - Anguelov, V.

AU - Antinori, F.

AU - Antonioli, P.

AU - Anuj, C.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arcelli, S.

AU - Arnaldi, R.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Aziz, S.

AU - Azmi, M. D.

AU - Bazo Alba, J. L.

AU - Gago, A. M.

PY - 2022/5/10

Y1 - 2022/5/10

N2 - The first results on K⁎(892)± resonance production in inelastic pp collisions at LHC energies of s=5.02, 8, and 13 TeV are presented. The K⁎(892)± has been reconstructed via its hadronic decay channel K⁎(892)→±KS0+π± with the ALICE detector. Measurements of transverse momentum distributions, pT-integrated yields, and mean transverse momenta for charged K⁎(892) are found to be consistent with previous ALICE measurements for neutral K⁎(892) within uncertainties. For pT>1 GeV/c the K⁎(892)± transverse momentum spectra become harder with increasing centre-of-mass energy from 5.02 to 13 TeV, similar to what previously observed for charged kaons and pions. For pT<1 GeV/c the K⁎(892)± yield does not evolve significantly and the abundance of K⁎(892)± relative to K is rather independent of the collision energy. The transverse momentum spectra, measured for K⁎(892)± at midrapidity in the interval 0 < pT<15 GeV/c, are not well described by predictions of different versions of PYTHIA 6, PYTHIA 8 and EPOS-LHC event generators. These generators reproduce the measured pT-integrated K⁎±/K ratios and describe well the momentum dependence for pT<2 GeV/c.

AB - The first results on K⁎(892)± resonance production in inelastic pp collisions at LHC energies of s=5.02, 8, and 13 TeV are presented. The K⁎(892)± has been reconstructed via its hadronic decay channel K⁎(892)→±KS0+π± with the ALICE detector. Measurements of transverse momentum distributions, pT-integrated yields, and mean transverse momenta for charged K⁎(892) are found to be consistent with previous ALICE measurements for neutral K⁎(892) within uncertainties. For pT>1 GeV/c the K⁎(892)± transverse momentum spectra become harder with increasing centre-of-mass energy from 5.02 to 13 TeV, similar to what previously observed for charged kaons and pions. For pT<1 GeV/c the K⁎(892)± yield does not evolve significantly and the abundance of K⁎(892)± relative to K is rather independent of the collision energy. The transverse momentum spectra, measured for K⁎(892)± at midrapidity in the interval 0 < pT<15 GeV/c, are not well described by predictions of different versions of PYTHIA 6, PYTHIA 8 and EPOS-LHC event generators. These generators reproduce the measured pT-integrated K⁎±/K ratios and describe well the momentum dependence for pT<2 GeV/c.

UR - https://www.scopus.com/pages/publications/85126957198

U2 - 10.1016/j.physletb.2022.137013

DO - 10.1016/j.physletb.2022.137013

M3 - Article

AN - SCOPUS:85126957198

SN - 0370-2693

VL - 828

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 - 137013

ER -

Measurement of K^⁎(892)^± production in inelastic pp collisions at the LHC

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