中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Search for direct top squark pair production in final states with two leptons in root s=13 tev pp collisions with the atlas detector

文献类型:期刊论文

AuthorAaboud, M.193,194; Aad, G.125,126; Abbott, B.156; Abdinov, O.16; Abeloos, B.160; Abidi, S. H.225; AbouZeid, O. S.197; Abraham, N. L.214; Abramowicz, H.218; Abreu, H.217
SourceEuropean physical journal c
Issued Date2017-12-21
Volume77Issue:12Pages:41
ISSN1434-6044
DOI10.1140/epjc/s10052-017-5445-x
Corresponding AuthorAaboud, m.()
English AbstractThe results of a search for direct pair production of top squarks in events with two opposite-charge leptons (electrons or muons) are reported, using 36.1 fb(-1) of integrated luminosity from proton-proton collisions at root s = 13 tev collected by the atlas detector at the large hadron collider. to cover a range of mass differences between the top squark (t) over tilde and lighter supersymmetric particles, four possible decay modes of the top squark are targeted with dedicated selections: the decay (t) over tilde -> b (chi) over tilde (+/-)(1) into a b-quark and the lightest chargino with (chi) over tilde (+/-)(1) w (chi) over tilde (0)(1),the decay (t) over tilde -> t (chi) over tilde (0)(1) into an on-shell top quark and the lightest neutralino, the three-body decay (t) over tilde -> bw (chi) over tilde (0)(1) and the four-body decay (t) over tilde -> bl nu(chi) over tilde (0)(1). no significant excess of events is observed above the standard model background for any selection, and limits on top squarks are set as a function of the (t) over tilde and (chi) over tilde (0)(1) masses. the results exclude at 95% confidence level (t) over tilde masses up to about 720 gev, extending the exclusion region of supersymmetric parameter space covered by previous searches.
WOS KeywordCALCULATING SUPERSYMMETRIC SPECTRA ; PROTON-PROTON COLLISIONS ; HADRON COLLIDERS ; GLUINO PRODUCTION ; MEASURING MASSES ; CROSS-SECTION ; PARTICLE ; PROGRAM ; EXTENSION ; SPHENO
WOS Research AreaPhysics
WOS SubjectPhysics, Particles & Fields
Language英语
WOS IDWOS:000418591100004
PublisherSPRINGER
URIhttp://www.irgrid.ac.cn/handle/1471x/2178272
Collection高能物理研究所
Corresponding AuthorAaboud, M.
Affiliation1.CERN, CH-1211 Geneva 23, Switzerland
2.Univ Adelaide, Dept Phys, Adelaide, SA, Australia
3.SUNY Albany, Dept Phys, Albany, NY 12222 USA
4.Univ Alberta, Dept Phys, Edmonton, AB, Canada
5.Ankara Univ, Dept Phys, Ankara, Turkey
6.Istanbul Aydin Univ, Istanbul, Turkey
7.Univ Econ & Technol, TOBB, Div Phys, Ankara, Turkey
8.LAPP, CNRS, IN2P3, GUILL Annecy Le Vieux, France
9.Univ Savoie Mont Blanc, Annecy Le Vieux, France
10.Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA
Recommended Citation
GB/T 7714
Aaboud, M.,Aad, G.,Abbott, B.,et al. Search for direct top squark pair production in final states with two leptons in root s=13 tev pp collisions with the atlas detector[J]. European physical journal c,2017,77(12):41.
APA Aaboud, M..,Aad, G..,Abbott, B..,Abdinov, O..,Abeloos, B..,...&Halladjian, G..(2017).Search for direct top squark pair production in final states with two leptons in root s=13 tev pp collisions with the atlas detector.European physical journal c,77(12),41.
MLA Aaboud, M.,et al."Search for direct top squark pair production in final states with two leptons in root s=13 tev pp collisions with the atlas detector".European physical journal c 77.12(2017):41.

入库方式: iSwitch采集

来源:高能物理研究所

浏览0
下载0
收藏0
其他版本

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.