Artigo
Measurement of Bose-Einstein correlations in pp collisions at root s=0.9 and 7 TeV
Fecha
2011-05-01Registro en:
Journal of High Energy Physics. New York: Springer, n. 5, p. 29, 2011.
1126-6708
10.1007/JHEP05(2011)029
WOS:000291364300029
WOS000291364300029.pdf
Autor
Yerevan Phys Inst
OeAW
Natl Ctr Particle & High Energy Phys
Univ Antwerp
Vrije Univ Brussel
Univ Libre Brussels
Univ Ghent
Catholic Univ Louvain
Univ Mons
Centro Brasileiro de Pesquisas Físicas (CBPF)
Universidade do Estado do Rio de Janeiro (UERJ)
Universidade Estadual Paulista (Unesp)
Bulgarian Acad Sci
Univ Sofia
Inst High Energy Phys
Peking Univ
Universidad de los Andes
Tech Univ Split
Univ Split
Rudjer Boskovic Inst
Univ Cyprus
Acad Sci Res & Technol Arab Republ Egypt
NICPB
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Helsinki Inst Phys
Lappeenranta Univ Technol
CNRS
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Ecole Polytech
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IN2P3
Univ Lyon 1
Acad Sci
Tbilisi State Univ
RWTH Aachen University
DESY
Univ Hamburg
Univ Karlsruhe
Inst Nucl Phys Demokritos
Univ Athens
Univ Ioannina
KFKI Res Inst Particle & Nucl Phys
Inst Nucl Res ATOMKI
Univ Debrecen
Panjab Univ
University of Delhi
Bhabha Atom Res Ctr
Tata Inst Fundamental Res EHEP
Tata Inst Fundamental Res HECR
Inst Studies Theoret Phys & Math IPM
Ist Nazl Fis Nucl
Univ Bari
Politecn Bari
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Resumen
Bose-Einstein correlations between identical particles are measured in samples of proton-proton collisions at 0.9 and 7 TeV centre-of-mass energies, recorded by the CMS experiment at the LHC. The signal is observed in the form of an enhancement of number of pairs of same-sign charged particles with small relative momentum. The dependence of this enhancement on kinematic and topological features of the event is studied. Anticorrelations between same-sign charged particles are observed in the region of relative momenta higher than those in the signal region.