Evidence for the 125 GeV Higgs boson decaying to a pair of τ leptons
Yazarlar (1)
| Makale Türü |
Özgün Makale
(ESCI dergilerinde yayınlanan tam makale)
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| Dergi Adı | Journal of High Energy Physics | ||
| Dergi ISSN | 1126-6708 | ||
| Makale Dili | İngilizce | Basım Tarihi | 05-2014 |
| Cilt / Sayı / Sayfa | 2014 / 5 / 1–72 | DOI | 10.1007/JHEP05(2014)104 |
| Makale Linki | https://link.springer.com/content/pdf/10.1007/JHEP05(2014)104.pdf | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| A search for a standard model Higgs boson decaying into a pair of τ leptons is performed using events recorded by the CMS experiment at the LHC in 2011 and 2012. The dataset corresponds to an integrated luminosity of 4.9 fb− 1 at a centre-of-mass energy of 7 TeV and 19.7 fb− 1 at 8 TeV. Each τ lepton decays hadronically or leptonically to an electron or a muon, leading to six different final states for the τ-lepton pair, all considered in this analysis. An excess of events is observed over the expected background contributions, with a local significance larger than 3 standard deviations for m H values between 115 and 130 GeV. The best fit of the observed H→ τ τ signal cross section times branching fraction for m H= 125 GeV is 0. 78±0. 27 times the standard model expectation. These observations constitute evidence for the 125 GeV Higgs boson decaying to a pair of τ leptons. |
| Anahtar Kelimeler |
| Hadron-Hadron Scattering | Higgs physics |
