eprintid: 131839
rev_number: 40
eprint_status: archive
userid: 608
dir: disk0/00/13/18/39
datestamp: 2010-10-25 03:35:37
lastmod: 2021-09-17 22:49:50
status_changed: 2019-01-14 10:55:30
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Lancaster, M
creators_name: Nurse, E
creators_name: Waters, DCDFC
title: Polarizations of J / ψ and ψ ( 2 S ) Mesons Produced in p ¯ p Collisions at √ s = 1.96 TeV
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F60
note: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: We have measured the polarizations of J/ψ and ψ(2S) mesons as functions of their transverse momentum pT when they are produced promptly in the rapidity range |y|<0.6 with pT≥5  GeV/c. The analysis is performed using a data sample with an integrated luminosity of about 800  pb-1 collected by the CDF II detector. For both vector mesons, we find that the polarizations become increasingly longitudinal as pT increases from 5 to 30  GeV/c. These results are compared to the predictions of nonrelativistic quantum chromodynamics and other contemporary models. The effective polarizations of J/ψ and ψ(2S) mesons from B-hadron decays are also reported.
date: 2007-09-26
official_url: http://dx.doi.org/10.1103/PhysRevLett.99.132001
vfaculties: VMPS
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
article_type_text: Article
verified: verified_manual
elements_source: Manually entered
elements_id: 92415
doi: 10.1103/PhysRevLett.99.132001
lyricists_name: BIZJAK, ILIJA
lyricists_name: Cooper, Ben
lyricists_name: Lancaster, Mark
lyricists_name: Nurse, Emily
lyricists_name: Torre, Stefano
lyricists_name: Waters, David
lyricists_id: IBIZJ81
lyricists_id: BDCOO72
lyricists_id: MALAN32
lyricists_id: ELNUR41
lyricists_id: STORR86
lyricists_id: DSWAT56
full_text_status: public
publication: Physical Review Letters
volume: 99
number: 13
article_number: 132001
issn: 0031-9007
citation:        Lancaster, M;    Nurse, E;    Waters, DCDFC;      (2007)    Polarizations of J / ψ and ψ ( 2 S ) Mesons Produced in p ¯ p Collisions at √ s = 1.96 TeV.                   Physical Review Letters , 99  (13)    , Article 132001.  10.1103/PhysRevLett.99.132001 <https://doi.org/10.1103/PhysRevLett.99.132001>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/131839/1/131839.pdf