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A bstractThe polarization of the Y(1S), Y(2S) and Y(3S) mesons, produced in pp collisions at centre-of-mass energies s=7$$ \sqrt{s}=7 $$ and 8 TeV, is measured using data samples collected by… Click to show full abstract
A bstractThe polarization of the Y(1S), Y(2S) and Y(3S) mesons, produced in pp collisions at centre-of-mass energies s=7$$ \sqrt{s}=7 $$ 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 pTΥ < 30 GeV/c and rapidity 2.2 < yY < 4.5. No large polarization is observed.
Keywords:
sqrt tev;
polarization;
measurement polarizations;
collisions sqrt;
polarizations collisions
Journal Title: Journal of High Energy Physics
Year Published: 2017
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Journal Title: Journal of High Energy Physics
Year Published: 2017
Link to full text (if available)
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recommendations!