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Search for new phenomena in a lepton plus high jet multiplicity final state the atlas experiment using root s=13 tev proton-proton collision data

文献类型:期刊论文

作者Aaboud, M.199,200; Collaboration, A. T. L. A. S.199,200; Aad, G.129,130; Abbott, B.161; Abdinov, O.15; Abeloos, B.165; Abidi, S. H.229; AbouZeid, O. S.203; Abraham, N. L.219; Abramowicz, H.223
刊名Journal of high energy physics
出版日期2017-09-19
期号9页码:50
ISSN号1029-8479
关键词Beyond standard model Hadron-hadron scattering (experiments)
DOI10.1007/jhep09(2017)088
通讯作者Aaboud, m.()
英文摘要A search for new phenomena in final states characterized by high jet multiplicity, an isolated lepton ( electron or muon) and either zero or at least three b-tagged jets is presented. the search uses 36.1 fb(-1) of root s = 13tev proton-proton collision data collected by the atlas experiment at the large hadron collider in 2015 and 2016. the dominant sources of background are estimated using parameterized extrapolations, based on observables at medium jet multiplicity, to predict the b-tagged jet multiplicity distribution at the higher jet multiplicities used in the search. no significant excess over the standard model expectation is observed and 95% confidence-level limits are extracted constraining four simplified models of r-parity-violating supersymmetry that feature either gluino or top-squark pair production. the exclusion limits reach as high as 2.1tev in gluino mass and 1.2tev in top-squark mass in the models considered. in addition, an upper limit is set on the cross-section for standard model t (t) over bart (t) over bar production of 60 fb (6.5 x the standard model prediction) at 95% confidence level. finally, model-independent limits are set on the contribution from new phenomena to the signal-region yields.
WOS关键词HADRON COLLIDERS ; PARTON DISTRIBUTIONS ; GLUINO PRODUCTION ; GENERATORS ; EXTENSION ; VIOLATION ; PARTICLE ; SQUARK
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:000411470700001
URI标识http://www.irgrid.ac.cn/handle/1471x/2177111
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 Mt Blanc, Annecy Le Vieux, France
9.Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA
10.Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
推荐引用方式
GB/T 7714
Aaboud, M.,Collaboration, A. T. L. A. S.,Aad, G.,et al. Search for new phenomena in a lepton plus high jet multiplicity final state the atlas experiment using root s=13 tev proton-proton collision data[J]. Journal of high energy physics,2017(9):50.
APA Aaboud, M..,Collaboration, A. T. L. A. S..,Aad, G..,Abbott, B..,Abdinov, O..,...&Hamal, P..(2017).Search for new phenomena in a lepton plus high jet multiplicity final state the atlas experiment using root s=13 tev proton-proton collision data.Journal of high energy physics(9),50.
MLA Aaboud, M.,et al."Search for new phenomena in a lepton plus high jet multiplicity final state the atlas experiment using root s=13 tev proton-proton collision data".Journal of high energy physics .9(2017):50.

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来源:高能物理研究所

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