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	Search for heavy neutrinos or third-generation leptoquarks in final states with two hadronically decaying tau leptons and two jets in proton-proton collisions at root s=13 tev
	Khachatryan, V.1; Sirunyan, A. M.1; Tumasyan, A.1; Adam, W.2; Asilar, E.2; Bergauer, T.2; Brandstetter, J.2; Brondolin, E.2; Dragicevic, M.2; Eroe, J.2
刊名	Journal of high energy physics
	2017-03-14
期号	3页码:36
关键词	Beyond standard model Hadron-hadron scattering (experiments) Proton-proton scattering
ISSN号	1029-8479
DOI	10.1007/jhep03(2017)077
通讯作者	Khachatryan, v.()
英文摘要	A search for new particles has been conducted using events with two high transverse momentum ((pt)) t leptons that decay hadronically, at least two high-pt jets, and missing transverse energy from the t lepton decays. the analysis is performed using data from proton-proton collisions, collected by the cms experiment in 2015 at root s = 13 tev, corresponding to an integrated luminosity of 2.1 fb(-1). the results are interpreted in two physics models. the first model involves heavy right-handed neutrinos, n-l (l = e, mu, t), and right-handed charged bosons, wr, arising in a left-right symmetric extension of the standard model. masses of the w-r boson below 2.35 (1.63) tev are excluded at 95% confidence level, assuming the n-tau mass is 0.8 (0.2) times the mass of the w-r boson and that only the nt flavor contributes to the wr decay width. in the second model, pair production of third-generation scalar leptoquarks that decay into (tt)bb is considered. third-generation scalar leptoquarks with masses below 740 gev are excluded, assuming a 100% branching fraction for the leptoquark decay to a t lepton and a bottom quark. this is the first search at hadron colliders for the third-generation majorana neutrino, as well as the first search for third-generation leptoquarks in the final state with a pair of hadronically decaying t leptons and jets.
WOS研究方向	Physics
WOS类目	Physics, Particles & Fields
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000397676300006
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2176744
专题	高能物理研究所
通讯作者	Khachatryan, V.
作者单位	1.Yerevan Phys Inst, Yerevan, Armenia 2.Inst Hochenergiephys, Vienna, Austria 3.Inst Nucl Problems, Minsk, Byelarus 4.Natl Ctr Particle & High Energy Phys, Minsk, Byelarus 5.Univ Antwerp, Antwerp, Belgium 6.Vrije Univ Brussel, Brussels, Belgium 7.Univ Libre Bruxelles, Brussels, Belgium 8.Univ Ghent, Ghent, Belgium 9.Catholic Univ Louvain, Louvain, Belgium 10.Univ Mons, Mons, Belgium
推荐引用方式 GB/T 7714	Khachatryan, V.,Sirunyan, A. M.,Tumasyan, A.,et al. Search for heavy neutrinos or third-generation leptoquarks in final states with two hadronically decaying tau leptons and two jets in proton-proton collisions at root s=13 tev[J]. Journal of high energy physics,2017(3):36.
APA	Khachatryan, V..,Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Asilar, E..,...&Mejia Guisao, J..(2017).Search for heavy neutrinos or third-generation leptoquarks in final states with two hadronically decaying tau leptons and two jets in proton-proton collisions at root s=13 tev.Journal of high energy physics(3),36.
MLA	Khachatryan, V.,et al."Search for heavy neutrinos or third-generation leptoquarks in final states with two hadronically decaying tau leptons and two jets in proton-proton collisions at root s=13 tev".Journal of high energy physics .3(2017):36.

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