Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector

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Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector	1 MB	Adobe Acrobat PDF	View Details	Download
DOI Доступ к ресурсу на сайте издателя				10.1007/JHEP04(2015)117

Title: Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
Creator: Aad, G.
Creator: Abdallah, J.
Creator: Chelkov, G. A.
Creator: Abbott, B.
Contributor: Томский государственный университет Радиофизический факультет Научные подразделения РФФ
Subject: ATLAS, детектор
Большой адронный коллайдер
лептоны
столкновение частиц
Date: 2015
DOI: 10.1007/JHEP04(2015)117
Description: Results of a search for H → τ τ decays are presented, based on the full set of proton-proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. The data correspond to integrated luminosities of 4.5 fb−1 and 20.3 fb−1 at centre-of-mass energies of √ s = 7 TeV and √ s = 8 TeV respectively. All combinations of leptonic (τ → `νν¯ with ` = e, µ) and hadronic (τ → hadrons ν) tau decays are considered. An excess of events over the expected background from other Standard Model processes is found with an observed (expected) significance of 4.5 (3.4) standard deviations. This excess provides evidence for the direct coupling of the recently discovered Higgs boson to fermions. The measured signal strength, normalised to the Standard Model expectation, of µ = 1.43 +0.43 −0.37 is consistent with the predicted Yukawa coupling strength in the Standard Model.

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collection(s): Радиофизический факультет
Identifier: vtls:000532652
http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000532652
Type: статьи в журналах
Source: Journal of high energy physics. 2015. № 4. P. 117 (1-73)
Language: eng

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Радиофизический факультет Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector