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공공누리This item is licensed Korea Open Government License

Title
Measurement of W -Boson Polarization in Top-quark Decay using the Full CDF Run II Data Set
Author(s)
T. Aaltonen조기현
Publication Year
2013-02-21
Abstract
We measure the polarization of W bosons from top-quark (t) decays into final states with a charged lepton and jets, tt̅ →W+bW-b̅ →ℓνbqq̅ ′b̅ , using the full Run II data set collected by the CDF II detector, corresponding to an integrated luminosity of 8.7  fb-1. A model-independent method simultaneously determines the fraction of longitudinal (f0) and right-handed (f+) W bosons to yield f0=0.726±0.066(stat)±0.067(syst) and f+=-0.045±0.044(stat)±0.058(syst) with a correlation coefficient of -0.69. Additional results are presented under various standard model assumptions. No significant discrepancies with the standard model are observed
Keyword
High Energy Physics; Particle Physics; belle
Journal Title
Physical review. D, Particles and fields
ISSN
1550-7998
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14161
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