Measurement of Prompt D0, Λc+, and Σc                      0, ++ (2455) Production in Proton-Proton Collisions at √s = 13 TeV

ALICE Collaboration

doi:10.1103/PhysRevLett.128.012001

Measurement of Prompt D⁰, Λ_c+, and Σ_c ⁰, ⁺⁺ (2455) Production in Proton-Proton Collisions at √s = 13 TeV

ALICE Collaboration

Chair of Experimentalphysik - Dense and Strange Hadronic Matter

VECC Kolkata
Nuclear Physics Institute of the Cas
Johann Wolfgang Goethe University
Lund University
European Organization for Nuclear Research
INFN Sez. di Torino
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
Aligarh Muslim University
Korea Institute of Science and Technology Information
P. J. Safarik University
Indonesian Institute of Sciences
National Research Centre "Kurchatov Institute"
GSI Helmholtz Center
Fudan University
Central China Normal University
Universidad Nacional Autónoma de México
COMSATS University Islamabad
University of Houston
University of Bergen
University of St. Petersburg
Horia Hulubei National Institute of Physics and Nuclear Engineering
Science Park 105
University of Münster
Heidelberg University
Dipartimento di Fisica 'G. Galilei' and INFN
Lawrence Berkeley National Laboratory
l'institut du thorax
University of Oslo
Yale University
Institut de Physique Nucléaire
Laboratori Nazionali Del Sud
Gangneung-Wonju National University
University of Science and Technology of China
Indian Institute of Technology Indore
University of Jammu
University Paris-Sud
Univ of Mining and Metallurgy
University of Bonn
Bose Institute
Università and Sezione INFN
Technical University of Munich
University of Athens
Wigner Research Centre for Physics
STFC Daresbury Laboratory
LAIC, Université d'Auvergne
University of Liverpool
Joint Inst. for Nuclear Research
The Indian Institute of Technology Bombay
Pontifical Catholic University of Peru San Miguel
Niels Bohr Institutet
Institut Pluridisciplinaire Hubert Curien
National Research Nuclear University MEPhI
Instituto de Ciencias Nucleares de la UNAM
Petersburg Nuclear Phys. Inst.
Institute of Space Sciences
Gauhati University
Sezione INFN di Cagliari
INFN, Laboratori Nazionali Di Frascati
Czech Technical University in Prague
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
University of Texas at Austin
University of Pavia
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia
Oak Ridge National Laboratory
Inha University
University of Brescia
Moscow Institute of Physics and Technology
University of São Paulo
Istituto Nazionale di Fisica Nucleare, Sezione di Bari
Politecnico di Bari
Russian Federal Nuclear Center (VNIIEF)
Stefan Meyer Institut für Subatomare Physik (SMI)
National Research Foundation
University of the Witwatersrand, Johannesburg
Universidad Autonoma de Sinaloa
Benemerita Universidad Autonoma de Puebla
INFN- Sezione di Trieste
Homi Bhabha National Institute
University of Lyon
University of Campinas
Tsukuba University
Energy and Sustainable Economic Development (ENEA)
University of Cape Town
University of Birmingham
Politecnico di Torino
University of Grenoble Alpes
University of Eastern Piedmont
UFABC
Sezione INFN di Roma La Sapienza
Frankfurt Institute for Advanced Studies
Warsaw Institute of Technology
University of California at Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
Institute for Nuclear Research of the Russian Academy of Sciences
Panjab University
Comenius University
University of Zagreb
Institute for High Energy Physics (IHEP)
Chicago State University
National Nuclear Research Center
University of Kansas
UFRGS
Nagasaki Institute of Applied Science
Wayne State University
University of Split
the University of Utrecht
A.I. Alikhanyan National Science Laboratory (YerPhi)
University of Tokyo
Western Norway University of Applied Sciences
CINVESTAV
Yonsei University
Creighton University
University of Tennessee
Ohio State University
Technical University of Košice
Suranaree University of Technology
Institute of Experimental Physics Slovak Academy of Sciences
KTO Karatay University
Zentrum für Technologietransfer und Telekommunikation (ZTT)
Pusan National University
University of Jyväskylä
Chonbuk National University
Sejong University
California Polytechnic State University, San Luis Obispo
National Center for Nuclear Research (NCBJ)
University of South-Eastern Norway
China Institute of Atomic Energy
Moscow State University
Multimedia and Distributed Systems Laboratory
Institute of Physics of the Czech Academy of Sciences
University of Foggia
Universita La Sapienza
Chungbuk National University
Hiroshima University
Budker Institute of Nuclear Physics (SB RAS)
University of Rajasthan
University of Helsinki and Helsinki Institute of Physics
Wrocław University
University of Tübingen
Nara Women's University
Bogolyubov Institute for Theoretical Physics Nasu

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

58 Scopus citations

Abstract

The pT-differential production cross sections of prompt D0, Λc+, and Σc0,++(2455) charmed hadrons are measured at midrapidity (|y|<0.5) in pp collisions at s=13 TeV. This is the first measurement of Σc0,++ production in hadronic collisions. Assuming the same production yield for the three Σc0,+,++ isospin states, the baryon-to-meson cross section ratios Σc0,+,++/D0 and Λc+/D0 are calculated in the transverse momentum (pT) intervals 2<pT<12 and 1<pT<24 GeV/c. Values significantly larger than in e+e- collisions are observed, indicating for the first time that baryon enhancement in hadronic collisions also extends to the Σc. The feed-down contribution to Λc+ production from Σc0,+,++ is also reported and is found to be larger than in e+e- collisions. The data are compared with predictions from event generators and other phenomenological models, providing a sensitive test of the different charm-hadronization mechanisms implemented in the models.

Original language	English
Article number	012001
Journal	Physical Review Letters
Volume	128
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.128.012001
State	Published - 7 Jan 2022

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10.1103/PhysRevLett.128.012001

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@article{91a81f783ffc45539401de9818732309,

title = "Measurement of Prompt D0, Λc+, and Σc 0, ++ (2455) Production in Proton-Proton Collisions at √s = 13 TeV",

abstract = "The pT-differential production cross sections of prompt D0, Λc+, and Σc0,++(2455) charmed hadrons are measured at midrapidity (|y|<0.5) in pp collisions at s=13 TeV. This is the first measurement of Σc0,++ production in hadronic collisions. Assuming the same production yield for the three Σc0,+,++ isospin states, the baryon-to-meson cross section ratios Σc0,+,++/D0 and Λc+/D0 are calculated in the transverse momentum (pT) intervals 2",

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 A. Badal{\`a} and L. Fabbietti",

note = "Publisher Copyright: {\textcopyright} 2022 CERN, for the ALICE Collaboration",

year = "2022",

month = jan,

day = "7",

doi = "10.1103/PhysRevLett.128.012001",

language = "English",

volume = "128",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "1",

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TY - JOUR

T1 - Measurement of Prompt D0, Λc+, and Σc 0, ++ (2455) Production in Proton-Proton Collisions at √s = 13 TeV

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 - Badalà, A.

AU - Fabbietti, L.

PY - 2022/1/7

Y1 - 2022/1/7

N2 - The pT-differential production cross sections of prompt D0, Λc+, and Σc0,++(2455) charmed hadrons are measured at midrapidity (|y|<0.5) in pp collisions at s=13 TeV. This is the first measurement of Σc0,++ production in hadronic collisions. Assuming the same production yield for the three Σc0,+,++ isospin states, the baryon-to-meson cross section ratios Σc0,+,++/D0 and Λc+/D0 are calculated in the transverse momentum (pT) intervals 2

AB - The pT-differential production cross sections of prompt D0, Λc+, and Σc0,++(2455) charmed hadrons are measured at midrapidity (|y|<0.5) in pp collisions at s=13 TeV. This is the first measurement of Σc0,++ production in hadronic collisions. Assuming the same production yield for the three Σc0,+,++ isospin states, the baryon-to-meson cross section ratios Σc0,+,++/D0 and Λc+/D0 are calculated in the transverse momentum (pT) intervals 2

UR - https://www.scopus.com/pages/publications/85123289100

U2 - 10.1103/PhysRevLett.128.012001

DO - 10.1103/PhysRevLett.128.012001

M3 - Article

C2 - 35061479

AN - SCOPUS:85123289100

SN - 0031-9007

VL - 128

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

M1 - 012001

ER -

Measurement of Prompt D⁰, Λ_c+, and Σ_c ⁰, ⁺⁺ (2455) Production in Proton-Proton Collisions at √s = 13 TeV

Abstract

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