Determination of the top quark pole mass and strong coupling constantfrom the t t over bar production cross section in pp collisions at roots 7 TeV
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 | Physics Letters Section B Nuclear Elementary Particle and High Energy Physics (Q4) | ||
| Dergi ISSN | 0370-2693 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI | ||
| Makale Dili | İngilizce | Basım Tarihi | 01-2014 |
| Cilt / Sayı / Sayfa | 728 / 1 / 496–517 | DOI | 10.1016/j.physletb.2013.12.009 |
| UAK Araştırma Alanları |
Yüksek Enerji ve Parçacık Fiziği
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| Özet |
| The inclusive cross section for top-quark pair production measured by the CMS experiment in proton–proton collisions at a center-of-mass energy of 7 TeV is compared to the QCD prediction at next-to-next-to-leading order with various parton distribution functions to determine the top-quark pole mass, m t pole, or the strong coupling constant, α S. With the parton distribution function set NNPDF2. 3, a pole mass of 176.7− 3.4+ 3.8 GeV is obtained when constraining α S at the scale of the Z boson mass, m Z, to the current world average. Alternatively, by constraining m t pole to the latest average from direct mass measurements, a value of α S (m Z)= 0.1151− 0.0032+ 0.0033 is extracted. This is the first determination of α S using events from top-quark production. |
| Anahtar Kelimeler |
| CMS | Constant | Coupling | Cross section | Mass | Pair | Physics | QCD | Quark | Strong | Top |
Science Direct
Determination of the top quark pole mass and strong coupling constantfrom the t t over bar production cross section in pp collisions at roots 7 TeV
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Scopus | 129 |
| Google Scholar | 369 |