Please use this identifier to cite or link to this item:
https://hdl.handle.net/11147/10733
Title: | Measurement of the Polarization of W Bosons With Large Transverse Momenta in W Plus Jets Events at the Lhc | Authors: | Karapınar, Güler | Publisher: | American Physical Society | Abstract: | A first measurement of the polarization of W bosons with large transverse momenta in pp collisions is presented. The measurement is based on 36 pb(-1) of data recorded at root s = 7 TeV by the CMS detector at the LHC. The left-handed, right-handed, and longitudinal polarization fractions (f(L), f(R), and f(0), respectively) of W bosons with transverse momenta larger than 50 GeV are determined by using decays to both electrons and muons. The muon final state yields the most precise measurement: (f(L) - f(R))(-) = 0.240 +/- 0.036(syst) +/- 0.031(syst) and f(0)(-) = 0.183 +/- 0.087(stat) +/- 0.123(syst) for negatively charged W bosons and (f(L) - f(R))(+) = 0.310 +/- 0.036(syst) +/- 0.017(syst) and f(0)(+) = 0.171 +/- 0.085(syst) +/- 0.099(syst) for positively charged W bosons. This establishes, for the first time, that W bosons produced in pp collisions with large transverse momenta are predominantly left-handed, as expected in the standard model. | Description: | PubMed: 21797595 | URI: | https://doi.org/10.1103/PhysRevLett.107.021802 https://hdl.handle.net/11147/10733 |
ISSN: | 0031-9007 1079-7114 |
Appears in Collections: | PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection Rectorate / Rektörlük WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
Show full item record
CORE Recommender
SCOPUSTM
Citations
82
checked on Mar 14, 2025
WEB OF SCIENCETM
Citations
69
checked on Mar 15, 2025
Page view(s)
224
checked on Mar 17, 2025
Google ScholarTM
Check
Altmetric
Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.