Measurement of the weak mixing angle with the Drell Yan process inproton proton collisions at the LHC
Yazarlar (1)
Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Physical Review D Particles Fields Gravitation and Cosmology (Q4) | ||
| Dergi ISSN | 1550-7998 | ||
| Dergi Tarandığı Indeksler | SCI | ||
| Makale Dili | İngilizce | Basım Tarihi | 01-2011 |
| Cilt / Sayı / Sayfa | 84 / 11 / – | DOI | 10.1103/PhysRevD.84.112002 |
| UAK Araştırma Alanları |
Yüksek Enerji ve Parçacık Fiziği
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| Özet |
| A multivariate likelihood method to measure electroweak couplings with the Drell-Yan process at the LHC is presented. The process is described by the dilepton rapidity, invariant mass, and decay angle distributions. The decay angle ambiguity due to the unknown assignment of the scattered constituent quark and antiquark to the two protons in a collision is resolved statistically using correlations between the observables. The method is applied to a sample of dimuon events from proton-proton collisions at √s=7TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 1.1fb -1. From the dominant uū, dd̄→γ */Z→μ -μ + process, the effective weak mixing angle parameter is measured to be sin2θ eff=0.2287±0.0020(stat.)±0.0025(syst.). This result is consistent with measurements from other processes, as expected within the standard model. © 2011 CERN. |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Scopus | 103 |