The ALICE Collaboration has studied J production in pp collisions at =7 TeV at the LHC through its muon pair decay. The polar and azimuthal angle distributions of the decay muons were measured, and results on the J polarization parameters and were obtained. The study was performed in the kinematic region 2.5< y <4, 2<pt<8 GeV/c, in the helicity and Collins-Soper reference frames. In both frames, the polarization parameters are compatible with zero, within uncertainties. © 2012 CERN. Published by the American Physical Society.

J Polarization in pp Collisions at =7 TeV

BRUNO, GIUSEPPE EUGENIO;CARMINATI, FLAVIO;COSTA, FIAMMETTA;DAS, KESHABANANDA;DI BARI, DEBORAH;FERRETTI, ANDREA;PERINI, DAVIDE;ROY, PARTHA PRATIM;SANTORO, ROMUALDO;SEGATO, GINO;TOIA, ALESSIO;
2012

Abstract

The ALICE Collaboration has studied J production in pp collisions at =7 TeV at the LHC through its muon pair decay. The polar and azimuthal angle distributions of the decay muons were measured, and results on the J polarization parameters and were obtained. The study was performed in the kinematic region 2.5< y <4, 2
PHYSICAL REVIEW LETTERS
http://oai.aps.org/filefetch?identifier=10.1103/PhysRevLett.108.082001&component=fulltext&description=markup&format=xml
Physics and Astronomy (all)
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11383/2062288
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