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Search for top quark decays t -> qh,with h -> gamma gamma, in root s=13 tev pp collisions using the atlas detector

文献类型:期刊论文

作者Aaboud, M.197,198; Aad, G.127,128; Abbott, B.159; Abdinov, O.15; Abeloos, B.163; Abidi, S. H.229; AbouZeid, O. S.201; Abraham, N. L.218; Abramowicz, H.222; Abreu, H.221
刊名Journal of high energy physics
出版日期2017-10-19
期号10页码:43
关键词Flavour changing neutral currents Hadron-hadron scattering (experiments) Higgs physics Top physics
ISSN号1029-8479
DOI10.1007/jhep10(2017)129
通讯作者Aaboud, m.()
英文摘要This article presents a search for flavour-changing neutral currents in the decay of a top quark into an up-type (q = c; u) quark and a higgs boson, where the higgs boson decays into two photons. the proton-proton collision data set analysed amounts to 36.1 fb(-1) at root s = 13tev collected by the atlas experiment at the lhc. top quark pair events are searched for, where one top quark decays into qh and the other decays into bw. both the hadronic and leptonic decay modes of the w boson are used. no significant excess is observed and an upper limit is set on the t -> ch branching ratio of 2 : 2 x 10(-3) at the 95% confidence level, while the expected limit in the absence of signal is 1 : 6 x 10(-3). the corresponding limit on the tch coupling is 0.090 at the 95% confidence level. the observed upper limit on the t -> uh branching ratio is 2 : 4 x 10(-3).
WOS关键词CHANGING NEUTRAL CURRENTS ; SUPERSYMMETRIC MODELS ; STANDARD MODEL ; DOUBLET MODELS ; HIGGS ; LHC ; BOSON ; COUPLINGS ; COLLIDERS ; PHYSICS
WOS研究方向Physics
WOS类目Physics, Particles & Fields
语种英语
WOS记录号WOS:000413664300001
出版者SPRINGER
URI标识http://www.irgrid.ac.cn/handle/1471x/2176930
专题高能物理研究所
通讯作者Aaboud, M.
作者单位1.Univ Adelaide, Dept Phys, Adelaide, SA, Australia
2.SUNY Albany, Dept Phys, Albany, NY 12222 USA
3.Univ Alberta, Dept Phys, Edmonton, AB, Canada
4.Ankara Univ, Dept Phys, Ankara, Turkey
5.Istanbul Aydin Univ, Istanbul, Turkey
6.TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey
7.CNRS, IN2P3, LAPP, Annecy Le Vieux, France
8.Univ Savoie Mont Blanc, Annecy Le Vieux, France
9.Argonne Natl Lab, Div High Energy Phys, 9700 S Cass Ave, Argonne, IL 60439 USA
10.Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
推荐引用方式
GB/T 7714
Aaboud, M.,Aad, G.,Abbott, B.,et al. Search for top quark decays t -> qh,with h -> gamma gamma, in root s=13 tev pp collisions using the atlas detector[J]. Journal of high energy physics,2017(10):43.
APA Aaboud, M..,Aad, G..,Abbott, B..,Abdinov, O..,Abeloos, B..,...&Hamacher, K..(2017).Search for top quark decays t -> qh,with h -> gamma gamma, in root s=13 tev pp collisions using the atlas detector.Journal of high energy physics(10),43.
MLA Aaboud, M.,et al."Search for top quark decays t -> qh,with h -> gamma gamma, in root s=13 tev pp collisions using the atlas detector".Journal of high energy physics .10(2017):43.

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