Production of pions, kaons and protons in pp collisions at \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\sqrt{s}= 900~\mathrm{GeV}$\end{document} with ALICE at the LHC

被引:0
作者
K. Aamodt
N. Abel
U. Abeysekara
A. Abrahantes Quintana
A. Abramyan
D. Adamová
M. M. Aggarwal
G. Aglieri Rinella
A. G. Agocs
S. Aguilar Salazar
Z. Ahammed
A. Ahmad
N. Ahmad
S. U. Ahn
R. Akimoto
A. Akindinov
D. Aleksandrov
B. Alessandro
R. Alfaro Molina
A. Alici
E. Almaráz Aviña
J. Alme
T. Alt
V. Altini
S. Altinpinar
C. Andrei
A. Andronic
G. Anelli
V. Angelov
C. Anson
T. Antičić
F. Antinori
S. Antinori
K. Antipin
D. Antończyk
P. Antonioli
A. Anzo
L. Aphecetche
H. Appelshäuser
S. Arcelli
R. Arceo
A. Arend
N. Armesto
R. Arnaldi
T. Aronsson
I. C. Arsene
A. Asryan
A. Augustinus
R. Averbeck
T. C. Awes
机构
[1] Dipartimento di Scienze e Tecnologie Avanzate dell’Università del Piemonte Orientale and Gruppo Collegato INFN,Department of Physics
[2] Aligarh Muslim University,Nikhef
[3] National Institute for Subatomic Physics,Physics Department
[4] University of Athens,Department of Physics and Technology
[5] Dipartimento Interateneo di Fisica ‘M. Merlin’ and Sezione INFN,Faculty of Engineering
[6] Sezione INFN,School of Physics and Astronomy
[7] China Institute of Atomic Energy,Faculty of Mathematics, Physics and Informatics
[8] University of Bergen,KFKI Research Institute for Particle and Nuclear Physics
[9] Bergen University College,Physics Department
[10] Lawrence Berkeley National Laboratory,Physics Department
[11] Institute of Physics,Laboratoire de Physique Corpusculaire (LPC), Clermont Université, Université Blaise Pascal
[12] University of Birmingham,Department of Physics
[13] Dipartimento di Fisica dell’Università and Sezione INFN,Niels Bohr Institute
[14] Sezione INFN,The Henryk Niewodniczanski Institute of Nuclear Physics
[15] Comenius University,Research Division and ExtreMe Matter Institute EMMI
[16] Institute of Space Sciences (ISS),Institut für Kernphysik
[17] National Institute for Physics and Nuclear Engineering,Frankfurt Institute for Advanced Studies
[18] Hungarian Academy of Sciences,Institut für Kernphysik
[19] Dipartimento di Fisica dell’Università and Sezione INFN,Laboratori Nazionali di Frascati
[20] Sezione INFN,Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier, CNRS
[21] Universidade Estadual de Campinas (UNICAMP),IN2P3
[22] University of Cape Town,Kirchhoff
[23] iThemba Laboratories,Institut für Physik
[24] Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN,Physikalisches Institut
[25] Sezione INFN,Physics Department
[26] Panjab University,Physics Department
[27] CNRS-IN2P3,Faculty of Science
[28] Ohio State University,Institute of Experimental Physics
[29] University of Copenhagen,Laboratori Nazionali di Legnaro
[30] Polish Academy of Sciences,Sección Física, Departamento de Ciencias
[31] Universidad Autónoma de Sinaloa,Division of Experimental High Energy Physics
[32] GSI Helmholtzzentrum für Schwerionenforschung,Instituto de Ciencias Nucleares
[33] Technische Universität Darmstadt,Instituto de Física
[34] Wayne State University,Institute for Nuclear Research
[35] Joint Institute for Nuclear Research (JINR),Institut für Kernphysik
[36] Johann Wolfgang Goethe-Universität Frankfurt,SUBATECH, Ecole des Mines de Nantes, Université de Nantes
[37] Johann Wolfgang Goethe-Universität Frankfurt,Physics Department
[38] INFN,Institut de Physique Nucléaire d’Orsay (IPNO), Université Paris
[39] Gangneung-Wonju National University,Sud
[40] Petersburg Nuclear Physics Institute,Department of Physics
[41] European Organization for Nuclear Research (CERN),Faculty of Nuclear Sciences and Physical Engineering
[42] Institut Polytechnique de Grenoble,Institute of Physics
[43] Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN),Nuclear Physics Institute
[44] Ruprecht-Karls-Universität Heidelberg,Commissariat à l’Energie Atomique
[45] Ruprecht-Karls-Universität Heidelberg,Departamento de Física de Partículas and IGFAE
[46] Hiroshima University,Department of Physics
[47] University of Houston,V. Fock Institute for Physics
[48] University of Rajasthan,Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg
[49] University of Jammu,Université de Lyon, Université Lyon 1, CNRS/IN2P3
[50] Helsinki Institute of Physics (HIP) and University of Jyväskylä,Zentrum für Technologietransfer und Telekommunikation (ZTT)
来源
The European Physical Journal C | 2011年 / 71卷 / 6期
关键词
Large Hadron Collider; Transverse Momentum; Time Projection Chamber; Weak Decay; Silicon Strip Detector;
D O I
10.1140/epjc/s10052-011-1655-9
中图分类号
学科分类号
摘要
The production of π+, π−, K+, K−, p, and \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\overline{\mathrm{p}}$\end{document} at mid-rapidity has been measured in proton-proton collisions at \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\sqrt{s} = 900~\mathrm{GeV}$\end{document} with the ALICE detector. Particle identification is performed using the specific energy loss in the inner tracking silicon detector and the time projection chamber. In addition, time-of-flight information is used to identify hadrons at higher momenta. Finally, the distinctive kink topology of the weak decay of charged kaons is used for an alternative measurement of the kaon transverse momentum (pt) spectra. Since these various particle identification tools give the best separation capabilities over different momentum ranges, the results are combined to extract spectra from pt=100 MeV/c to 2.5 GeV/c. The measured spectra are further compared with QCD-inspired models which yield a poor description. The total yields and the mean pt are compared with previous measurements, and the trends as a function of collision energy are discussed.
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[1]  
Alessandro B.(2006)undefined J. Phys. G 32 1295-undefined
[2]  
Cinausero M.(2004)undefined J. Phys. G 30 1517-undefined
[3]  
Aamodt K.(2008)undefined J. Instrum. 3 316-undefined
[4]  
Aglieri Rinella G.(2007)undefined J. Instrum. 2 235-undefined
[5]  
Kluge A.(2010)undefined J. Instrum. 5 676-undefined
[6]  
Krivda M.(2010)undefined J. Instrum. 5 37-undefined
[7]  
Alessandro B.(2010)undefined Nucl. Instrum. Methods Phys. Res. A 622 601-undefined
[8]  
Aamodt K.(2009)undefined Nuovo Cimento B 124 89-undefined
[9]  
Alme J.(2007)undefined Nucl. Instrum. Methods Phys. Res. A 572 53-undefined
[10]  
Akindinov A.(2010)undefined Nucl. Instrum. Methods Phys. Res. A 615 175-undefined