The ALICE Collaboration has studied J=c production in pp collisions at √s = 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=c 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.
J/Psi Polarization in pp Collisions at √s = 7 TeV
CAMERINI, Paolo;CONTIN, GIACOMO;FRAGIACOMO, ENRICO;LEA, RAMONA;MARGAGLIOTTI, GIACOMO;PIANO, STEFANO;RUI, RINALDO;VENARUZZO, MASSIMO;
2012-01-01
Abstract
The ALICE Collaboration has studied J=c production in pp collisions at √s = 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=c polarization parameters and were obtained. The study was performed in the kinematic region 2.5File in questo prodotto:
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