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
Oliver Lodge Laboratory
University of Liverpool
Clermont-Auvergne University
University of Dortmund
SUPA
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
Physik-Institut
University of Zurich
University of Cincinnati
Sezione INFN di Ferrara
University of Ferrara
University of Maryland, College Park
School of Physics and Astronomy
University of Manchester
Max-Planck-Institut für Kernphysik
Kurchatov Institute
Syracuse University
Aix Marseille Université
Università degli Studi della Basilicata
Physikalisches Institut
University of Heidelberg
Department of Physics
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
School of Physics and Astronomy
University of Edinburgh

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

39 Citations (Scopus)

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 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.

Original language	English
Article number	2835
Journal	European Physical Journal C
Volume	74
Issue number	4
DOIs	https://doi.org/10.1140/epjc/s10052-014-2835-1
Publication status	Published - 29 Apr 2014
Externally published	Yes

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@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{\textendash}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) {\texttimes} B (ϒ(1S) → μ+ μ−) = 1.111 ± 0.043 ± 0.044 nb, σ (pp → ϒ(2S)X) {\texttimes} B (ϒ(2S)→μ+ μ−) = 0.264 ± 0.023 ± 0.011 nb, σ (pp → ϒ(3S)X) {\texttimes} 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",

publisher = "Springer Nature",

number = "4",

}

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

Abstract

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