TY - JOUR
T1 - Measurement of the Y(nS) polarizations in pp collisions at √s=7 and 8 TeV
N1 - Publisher Copyright:
© 2017, The Author(s).
PY - 2017/12/1
Y1 - 2017/12/1
N2 - The polarization of the Y(1S), Y(2S) and Y(3S) mesons, produced in pp collisions at centre-of-mass energies s=7 and 8 TeV, is measured using data samples collected by the LHCb experiment, corresponding to integrated luminosities of 1 and 2 fb−1, respectively. The measurements are performed in three polarization frames, using Y → μμ decays in the kinematic region of the transverse momentum pT Υ < 30 GeV/c and rapidity 2.2 < yY < 4.5. No large polarization is observed.
AB - The polarization of the Y(1S), Y(2S) and Y(3S) mesons, produced in pp collisions at centre-of-mass energies s=7 and 8 TeV, is measured using data samples collected by the LHCb experiment, corresponding to integrated luminosities of 1 and 2 fb−1, respectively. The measurements are performed in three polarization frames, using Y → μμ decays in the kinematic region of the transverse momentum pT Υ < 30 GeV/c and rapidity 2.2 < yY < 4.5. No large polarization is observed.
KW - Hadron-Hadron scattering (experiments)
KW - Particle and resonance production
KW - Polarization
KW - QCD
UR - http://www.scopus.com/inward/record.url?scp=85039070542&partnerID=8YFLogxK
U2 - 10.1007/JHEP12(2017)110
DO - 10.1007/JHEP12(2017)110
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AN - SCOPUS:85039070542
SN - 1126-6708
VL - 2017
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 12
M1 - 110
ER -