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Measurement of the polarization of W bosons with large transverse momenta in W + jets events at the LHC.

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 √s = 7 TeV by the CMS detector at the LHC. The left-handed, right-handed, and longitudinal polarization fractions (f(L), f(R), and f₀, 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) ...

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Journal:
Physical Review Letters More from this journal
Volume:
107
Issue:
2
Pages:
021802
Publication date:
2011-07-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Pubs id:
pubs:172505
UUID:
uuid:6e06b667-237c-43d0-ac5d-5ae3d168bf58
Local pid:
pubs:172505
Source identifiers:
172505
Deposit date:
2013-11-16

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