Measurement of the (sic)(nS) polarizations in pp collisions at √<i>s</i>=7 and 8 TeV



Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S
et al (show 795 more authors) (2017) Measurement of the (sic)(nS) polarizations in pp collisions at √<i>s</i>=7 and 8 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 12 (12). 110-.

[thumbnail of 1709.01301v2.pdf] Text
1709.01301v2.pdf - Author Accepted Manuscript

Download (1MB)

Abstract

The polarization of the $\Upsilon(1S)$, $\Upsilon(2S)$ and $\Upsilon(3S) $mesons, produced in $pp$ collisions at centre-of-mass energies $\sqrt{s}$=7 and 8TeV, is measured using data samples collected by the LHCb experiment, corresponding to integrated luminosities of 1 and 2fb$^{-1}$, respectively. The measurements are performed in three polarization frames, using $\Upsilon\to\mu^+\mu^-$ decays in the kinematic region of the transverse momentum $p_{T}(\Upsilon)<30GeV/c$, and rapidity $2.2<y(\Upsilon)<4.5$. No large polarization is observed.

Item Type: Article
Additional Information: 61 page, 15 figures, 28 tables. All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2017-028.html
Uncontrolled Keywords: Hadron-Hadron scattering (experiments), Particle and resonance production, Polarization, QCD
Depositing User: Symplectic Admin
Date Deposited: 12 Jan 2018 10:42
Last Modified: 06 Oct 2023 18:07
DOI: 10.1007/JHEP12(2017)110
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3015922