Measurement of the Y(nS) polarizations in pp collisions at √s = 7 and 8 TeV
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
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 p T Υ < 30 GeV/c and rapidity 2.2 < yY < 4.5. No large polarization is observed.
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Date Issued
2017-12-20
Date Acceptance
2017-12-07
Citation
The Journal of High Energy Physics, 2017, 2017 (12)
ISSN
1029-8479
Publisher
Springer Verlag (Germany)
Journal / Book Title
The Journal of High Energy Physics
Volume
2017
Issue
12
Copyright Statement
© The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
License URL
Sponsor
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000418559400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
ST/G005974/1
ST/K001604/1
Subjects
Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
Hadron-Hadron scattering (experiments)
Particle and resonance production
Polarization
QCD
PAIR PRODUCTION
INELASTIC PHOTOPRODUCTION
HADRONIC PRODUCTION
GENERAL-THEORY
J-PSI
UPSILON
DECAY
PARTICLES
J/PSI
TOOL
Publication Status
Published
Article Number
ARTN 110
Date Publish Online
2017-12-20