Measurement of ϒ production in pp collisions at √s = 2.76 TeV

The LHCb collaboration

doi:10.1140/epjc/s10052-014-2835-1

Measurement of ϒ production in pp collisions at √s = 2.76 TeV

The LHCb collaboration

European Organization for Nuclear Research
Science Park 105
University Santiago de Compostela
University of Bristol
University of Liverpool
Clermont-Auvergne University
University of Dortmund
University of Glasgow
Petersburg Nuclear Physics Institute (PNPI)
Sezione di Roma
Instituto de Biofisica da UFRJ
INFN
Laboratoire de l'Accélérateur Linéaire
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
University of Florence
University of Zurich
University of Cincinnati
Sezione INFN di Ferrara
University of Ferrara
University of Maryland, College Park
University of Manchester
Max-Planck-Institut für Kernphysik
Kurchatov Institute
Syracuse University
Aix Marseille Université
Università degli Studi della Basilicata
University of Heidelberg
University of Warwick
University of Barcelona
Institute for Theoretical and Experimental Physics
ENAC-IIC-GEL
University of Cambridge
National Centre for Nuclear Research (NCBJ)
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Centro Brasileiro de Pesquisas Fisicas
Universités Paris VI and VII
LNF-INFN
University of Edinburgh
Moscow State University
University of Birmingham
University of Modena and Reggio Emilia
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Novosibirsk State University
Sezione INFN di Cagliari
Vrije Universiteit Amsterdam
University of Padova
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
Universitat Ramon LLull - CSIC
INFN Sezione di Bologna
University of Bologna
University of Rome “Tor Vergata”
Sezione di Genova
University of Genoa
University of Oxford
Institute for Nuclear Physics
Imperial College London
Horia Hulubei National Institute of Physics and Nuclear Engineering
Massachusetts Institute of Technology
Pontifícia Universidade Católica do Rio de Janeiro
Université Savoie Mont Blanc
Agh University of Science and Technology Faculty of Computer Science
Kharkov Institute of Physics and Technology
CCLRC Rutherford Appleton Laboratory
Institute for Nuclear Research of the Russian Academy of Sciences
Sezione INFN di Milano
Tsinghua University
Universidade Federal Do Triângulo Mineiro (UFTM)
Universität Rostock
ICS/University of Groningen
Institute for Nuclear Research of the National Academy of Sciences (KINR)
Universitá di Cagliari
Scuola Normale Superiore di Pisa
University of Valencia
University College Dublin
Hanoi University of Science
INFN Sezione di Bari
Università degli studi di Bari Aldo Moro
University of Milano
University of Rome
Celal Bayar University
University of Pisa
Kurchatov Institute
University of Urbino Carlo Bo
P.N. Lebedev Physical Institute of the Russian Academy of Sciences

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The production of ϒ(1S), ϒ(2S) and ϒ(3S) mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of 3.3pb⁻¹ collected in proton–proton collisions at a centre-of-mass energy of √s = 2.76 TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the ϒ transverse momentum and rapidity, over the ranges p_T < 15 GeV/c and 2.0 < y < 4.5. The total cross-sections in this kinematic region, assuming unpolarised production, aremeasured to be σ (pp → ϒ(1S)X) × B (ϒ(1S) → μ⁺ μ⁻) = 1.111 ± 0.043 ± 0.044 nb, σ (pp → ϒ(2S)X) × B (ϒ(2S)→μ⁺ μ⁻) = 0.264 ± 0.023 ± 0.011 nb, σ (pp → ϒ(3S)X) × B (ϒ(3S) → μ⁺ μ⁻) = 0.159 ± 0.020 ± 0.007 nb, where the first uncertainty is statistical and the second systematic.

langue originale	Anglais
Numéro d'article	2835
journal	European Physical Journal C
Volume	74
Numéro de publication	4
Les DOIs	https://doi.org/10.1140/epjc/s10052-014-2835-1
état	Publié - 29 avr. 2014
Modification externe	Oui

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10.1140/epjc/s10052-014-2835-1

Contient cette citation

@article{2edcb423f5924e65913ab57e27ab5dfa,

title = "Measurement of ϒ production in pp collisions at √s = 2.76 TeV",

abstract = "The production of ϒ(1S), ϒ(2S) and ϒ(3S) mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of 3.3pb−1 collected in proton–proton collisions at a centre-of-mass energy of √s = 2.76 TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the ϒ transverse momentum and rapidity, over the ranges pT < 15 GeV/c and 2.0 < y < 4.5. The total cross-sections in this kinematic region, assuming unpolarised production, aremeasured to be σ (pp → ϒ(1S)X) × B (ϒ(1S) → μ+ μ−) = 1.111 ± 0.043 ± 0.044 nb, σ (pp → ϒ(2S)X) × B (ϒ(2S)→μ+ μ−) = 0.264 ± 0.023 ± 0.011 nb, σ (pp → ϒ(3S)X) × B (ϒ(3S) → μ+ μ−) = 0.159 ± 0.020 ± 0.007 nb, where the first uncertainty is statistical and the second systematic.",

author = "\{The LHCb collaboration\} and R. Aaij and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and Cartelle, \{P. Alvarez\} and Alves, \{A. A.\} and S. Amato and S. Amerio and Y. Amhis and L. Anderlini and J. Anderson and R. Andreassen and M. Andreotti and Andrews, \{J. E.\} and Appleby, \{R. B.\} and Gutierrez, \{O. Aquines\} and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, \{J. J.\} and A. Badalov and V. Balagura and W. Baldini and Barlow, \{R. J.\} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and Th Bauer and A. Bay and J. Beddow and F. Bedeschi and I. Bediaga and S. Belogurov and K. Belous and I. Belyaev and E. Ben-Haim and G. Bencivenni and S. Benson and J. Benton",

note = "Publisher Copyright: {\textcopyright} 2014, CERN for the benefit of the LHCb collaboration.",

year = "2014",

month = apr,

day = "29",

doi = "10.1140/epjc/s10052-014-2835-1",

language = "English",

volume = "74",

journal = "European Physical Journal C",

issn = "1434-6044",

number = "4",

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TY - JOUR

T1 - Measurement of ϒ production in pp collisions at √s = 2.76 TeV

AU - The LHCb collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Cartelle, P. Alvarez

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - Anderlini, L.

AU - Anderson, J.

AU - Andreassen, R.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Gutierrez, O. Aquines

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Bauer, Th

AU - Bay, A.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Belogurov, S.

AU - Belous, K.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Bencivenni, G.

AU - Benson, S.

AU - Benton, J.

PY - 2014/4/29

Y1 - 2014/4/29

N2 - The production of ϒ(1S), ϒ(2S) and ϒ(3S) mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of 3.3pb−1 collected in proton–proton collisions at a centre-of-mass energy of √s = 2.76 TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the ϒ transverse momentum and rapidity, over the ranges pT < 15 GeV/c and 2.0 < y < 4.5. The total cross-sections in this kinematic region, assuming unpolarised production, aremeasured to be σ (pp → ϒ(1S)X) × B (ϒ(1S) → μ+ μ−) = 1.111 ± 0.043 ± 0.044 nb, σ (pp → ϒ(2S)X) × B (ϒ(2S)→μ+ μ−) = 0.264 ± 0.023 ± 0.011 nb, σ (pp → ϒ(3S)X) × B (ϒ(3S) → μ+ μ−) = 0.159 ± 0.020 ± 0.007 nb, where the first uncertainty is statistical and the second systematic.

AB - The production of ϒ(1S), ϒ(2S) and ϒ(3S) mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of 3.3pb−1 collected in proton–proton collisions at a centre-of-mass energy of √s = 2.76 TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the ϒ transverse momentum and rapidity, over the ranges pT < 15 GeV/c and 2.0 < y < 4.5. The total cross-sections in this kinematic region, assuming unpolarised production, aremeasured to be σ (pp → ϒ(1S)X) × B (ϒ(1S) → μ+ μ−) = 1.111 ± 0.043 ± 0.044 nb, σ (pp → ϒ(2S)X) × B (ϒ(2S)→μ+ μ−) = 0.264 ± 0.023 ± 0.011 nb, σ (pp → ϒ(3S)X) × B (ϒ(3S) → μ+ μ−) = 0.159 ± 0.020 ± 0.007 nb, where the first uncertainty is statistical and the second systematic.

U2 - 10.1140/epjc/s10052-014-2835-1

DO - 10.1140/epjc/s10052-014-2835-1

M3 - Article

AN - SCOPUS:84937645852

SN - 1434-6044

VL - 74

JO - European Physical Journal C

JF - European Physical Journal C

IS - 4

M1 - 2835

ER -

Measurement of ϒ production in pp collisions at √s = 2.76 TeV

Résumé

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