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Measurement of W-boson polarization in Top-Quark Decay in pp collisions at sqrt[s]=1.96  TeV.

Abstract:

We report measurements of the polarization of W bosons from top-quark decays using 2.7 fb{-1} of pp collisions collected by the CDF II detector. Assuming a top-quark mass of 175  GeV/c{2}, three measurements are performed. A simultaneous measurement of the fraction of longitudinal (f{0}) and right-handed (f{+}) W bosons yields the model-independent results f{0}=0.88±0.11(stat)±0.06(syst) and f{+}=-0.15±0.07(stat)±0.06(syst) with a correlation coefficient of -0.59. A measurement of f{0} [f{+}]...

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Authors


Aaltonen, T More by this author
Adelman, J More by this author
Alvarez González, B More by this author
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Journal:
Physical review letters
Volume:
105
Issue:
4
Pages:
042002
Publication date:
2010-07-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:c38d1a0e-9fb5-4a13-acf1-ec190c38e574
Source identifiers:
124883
Local pid:
pubs:124883
Language:
English
Keywords:

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