Measurement of the W boson helicity in events with a single reconstructed top quark in p p collisions at √s=8 TeV
Yazarlar (1)
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Journal of High Energy Physics (Q1) | ||
| Dergi ISSN | 1029-8479 Dergi Bilgileri (2015) | ||
| Makale Dili | İngilizce | Basım Tarihi | 01-2015 |
| Cilt / Sayı / Sayfa | 2015 / 1 / 1–35 | DOI | 10.1007/JHEP01(2015)053 |
| Makale Linki | https://doi.org/10.1007/jhep01(2015)053 | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| A measurement of the W boson helicity is presented, where the W boson originates from the decay of a top quark produced in pp collisions. The event selection, optimized for reconstructing a single top quark in the final state, requires exactly one isolated lepton (muon or electron) and exactly two jets, one of which is likely to originate from the hadronization of a bottom quark. The analysis is performed using data recorded at a center-of-mass energy of 8 TeV with the CMS detector at the CERN LHC in 2012. The data sample corresponds to an integrated luminosity of 19.7 fb−1. The measured helicity fractions are FL = 0.298 ± 0.028 (stat) ± 0.032(syst), F0 = 0.720 ± 0.039 (stat) ± 0.037(syst), and FR = −0.018 ± 0.019 (stat) ± 0.011(syst). These results are used to set limits on the real part of the tWb anomalous couplings, gL and gR. © 2015, The Author(s). |
| Anahtar Kelimeler |
| Electroweak interaction | Hadron-Hadron Scattering |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 36 |
| Scopus | 32 |
| Google Scholar | 51 |