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Measurement of the (sic)(nS) polarizations in pp collisions at root s=7 and 8 TeV

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Schmelling,  M.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Citation

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2017). Measurement of the (sic)(nS) polarizations in pp collisions at root s=7 and 8 TeV. Journal of high energy physics: JHEP, 2017(12): 110. doi:10.1007/JHEP12(2017)110.


Cite as: https://hdl.handle.net/21.11116/0000-0001-3023-1
Abstract
The polarization of the (sic) (1S), (sic) (2S) and (sic) (3S) mesons, produced in pp collisions at centre-of-mass energies root s = 7 and 8TeV, 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 (sic) -> mu mu decays in the kinematic region of the transverse momentum p(T)((sic)) < 30 GeV/c and rapidity 2.2 < y((sic)) < 4.5. No large polarization is observed.