Measurement of prompt hadron production ratios in pp collisions at √s = 0.9 and 7 TeV

The LHCb collaboration

doi:10.1140/epjc/s10052-012-2168-x

Measurement of prompt hadron production ratios in pp collisions at √s = 0.9 and 7 TeV

The LHCb collaboration

European Organization for Nuclear Research
Science Park 105
University of Barcelona
Universitat Ramon LLull - CSIC
University of Heidelberg
University Santiago de Compostela
University of Bristol
Aix Marseille Université
University of Liverpool
Clermont-Auvergne University
University of Glasgow
Petersburg Nuclear Physics Institute (PNPI)
Sezione di Roma
Instituto de Biofisica da UFRJ
ENAC-IIC-GEL
University of Zurich
University of Manchester
Max-Planck-Institut für Kernphysik
LNF-INFN
Kurchatov Institute
Syracuse University
Università degli Studi della Basilicata
University of Warwick
Institute for Theoretical and Experimental Physics
Sezione INFN di Ferrara
Université Paris-Saclay
University of Cambridge
Centro Brasileiro de Pesquisas Fisicas
Sorbonne Université
University of Edinburgh
Moscow State University
University College Dublin
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
University of Modena and Reggio Emilia
Imperial College London
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Novosibirsk State University
Sezione INFN di Cagliari
University of Dortmund
Vrije Universiteit Amsterdam
Horia Hulubei National Institute of Physics and Nuclear Engineering
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
INFN Sezione di Bologna
University of Bologna
University of Rome “Tor Vergata”
Sezione di Genova
University of Genoa
University of Oxford
Tsinghua University
Institute for Nuclear Physics
Université Savoie Mont Blanc
Kharkov Institute of Physics and Technology
CCLRC Rutherford Appleton Laboratory
University of Birmingham
University of Ferrara
Institute for Nuclear Research of the Russian Academy of Sciences
University of Florence
Pontifícia Universidade Católica do Rio de Janeiro
Universität Rostock
Institute of Nuclear Research, National Academy of Sciences in Ukraine
Universitá di Cagliari
INFN Sezione di Bari
Agh University of Science and Technology Faculty of Computer Science
Hanoi University of Science
Università degli studi di Bari Aldo Moro
University of Rome
Soltan Institute for Nuclear Studies
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 charged−particle production ratios p/p, K ⁻/K ⁺, π ⁻/π ⁺, (p + p)/(π ⁺+π ⁻), (K ⁺+K ⁻)/(π ⁺ + π ⁻) and (p+ p)/(K ⁺ + K ⁻) are measured with the LHCb detector using 0.3 nb⁻¹ of pp collisions delivered by the LHC at √s = 0.9 TeV and 1.8 nb⁻¹ at √s = 7 TeV. The measurements are performed as a function of transverse momentum p_T and pseudorapidity η. The production ratios are compared to the predictions of several Monte Carlo generator settings, none of which are able to describe adequately all observables. The ratio p/p is also considered as a function of rapidity loss, Δy ≡ y_beam − y, and is used to constrain models of baryon transport.

langue originale	Anglais
Numéro d'article	2168
journal	European Physical Journal C
Volume	72
Numéro de publication	10
Les DOIs	https://doi.org/10.1140/epjc/s10052-012-2168-x
état	Publié - 5 oct. 2012
Modification externe	Oui

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10.1140/epjc/s10052-012-2168-x

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@article{846cff8274f34980a06b0fa570e61e75,

title = "Measurement of prompt hadron production ratios in pp collisions at √s = 0.9 and 7 TeV",

abstract = "The charged−particle production ratios p/p, K −/K +, π −/π +, (p + p)/(π ++π −), (K ++K −)/(π + + π −) and (p+ p)/(K + + K −) are measured with the LHCb detector using 0.3 nb−1 of pp collisions delivered by the LHC at √s = 0.9 TeV and 1.8 nb−1 at √s = 7 TeV. The measurements are performed as a function of transverse momentum pT and pseudorapidity η. The production ratios are compared to the predictions of several Monte Carlo generator settings, none of which are able to describe adequately all observables. The ratio p/p is also considered as a function of rapidity loss, Δy ≡ ybeam − y, and is used to constrain models of baryon transport.",

author = "\{The LHCb collaboration\} and R. Aaij and Beteta, \{C. Abellan\} and A. Adametz and B. Adeva and M. Adinolfi and C. Adrover 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 Y. Amhis and J. Anderson and Appleby, \{R. B.\} and Gutierrez, \{O. Aquines\} and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and S. Bachmann and Back, \{J. J.\} and V. Balagura and W. Baldini and Barlow, \{R. J.\} and C. Barschel and S. Barsuk and W. Barter and A. Bates and C. Bauer and Th Bauer and A. Bay and J. Beddow and I. Bediaga and S. Belogurov and K. Belous and I. Belyaev and E. Ben-Haim and M. Benayoun and G. Bencivenni and S. Benson and J. Benton and A. Berezhnoy and R. Bernet and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2012, CERN for the benefit of the LHCb collaboration.",

year = "2012",

month = oct,

day = "5",

doi = "10.1140/epjc/s10052-012-2168-x",

language = "English",

volume = "72",

journal = "European Physical Journal C",

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T1 - Measurement of prompt hadron production ratios in pp collisions at √s = 0.9 and 7 TeV

AU - The LHCb collaboration

AU - Aaij, R.

AU - Beteta, C. Abellan

AU - Adametz, A.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adrover, C.

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 - Amhis, Y.

AU - Anderson, J.

AU - Appleby, R. B.

AU - Gutierrez, O. Aquines

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Bachmann, S.

AU - Back, J. J.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Bates, A.

AU - Bauer, C.

AU - Bauer, Th

AU - Bay, A.

AU - Beddow, J.

AU - Bediaga, I.

AU - Belogurov, S.

AU - Belous, K.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Benayoun, M.

AU - Bencivenni, G.

AU - Benson, S.

AU - Benton, J.

AU - Berezhnoy, A.

AU - Bernet, R.

AU - Maurice, E.

PY - 2012/10/5

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N2 - The charged−particle production ratios p/p, K −/K +, π −/π +, (p + p)/(π ++π −), (K ++K −)/(π + + π −) and (p+ p)/(K + + K −) are measured with the LHCb detector using 0.3 nb−1 of pp collisions delivered by the LHC at √s = 0.9 TeV and 1.8 nb−1 at √s = 7 TeV. The measurements are performed as a function of transverse momentum pT and pseudorapidity η. The production ratios are compared to the predictions of several Monte Carlo generator settings, none of which are able to describe adequately all observables. The ratio p/p is also considered as a function of rapidity loss, Δy ≡ ybeam − y, and is used to constrain models of baryon transport.

AB - The charged−particle production ratios p/p, K −/K +, π −/π +, (p + p)/(π ++π −), (K ++K −)/(π + + π −) and (p+ p)/(K + + K −) are measured with the LHCb detector using 0.3 nb−1 of pp collisions delivered by the LHC at √s = 0.9 TeV and 1.8 nb−1 at √s = 7 TeV. The measurements are performed as a function of transverse momentum pT and pseudorapidity η. The production ratios are compared to the predictions of several Monte Carlo generator settings, none of which are able to describe adequately all observables. The ratio p/p is also considered as a function of rapidity loss, Δy ≡ ybeam − y, and is used to constrain models of baryon transport.

UR - https://www.scopus.com/pages/publications/84937644781

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DO - 10.1140/epjc/s10052-012-2168-x

M3 - Article

AN - SCOPUS:84937644781

SN - 1434-6044

VL - 72

JO - European Physical Journal C

JF - European Physical Journal C

IS - 10

M1 - 2168

ER -

Measurement of prompt hadron production ratios in pp collisions at √s = 0.9 and 7 TeV

Résumé

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