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	Search for dark matter produced in association with bottom or top quarks in root s=13 tev pp collisions with the atlas detector
	Aaboud, M.193,194; Aad, G.125,126; Abbott, B.156; Abdinov, O.17; Abeloos, B.160; Abidi, S. H.225; AbouZeid, O. S.197; Abraham, N. L.214; Abramowicz, H.218; Abreu, H.217
刊名	European physical journal c
	2018-01-11
卷号	78期号:1页码:36
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-017-5486-1
通讯作者	Aaboud, m.()
英文摘要	A search for weakly interacting massive dark matter particles produced in association with bottom or top quarks is presented. final states containing third-generation quarks and missing transverse momentum are considered. the analysis uses 36.1 fb(-1) of proton proton collision data recorded by the atlas experiment at root s = 13 tev in 2015 and 2016. no significant excess of events above the estimated backgrounds is observed. the results are interpreted in the framework of simplified models of spin-0 dark-matter mediators. for colour-neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark matter particles, mediator masses below 50 gev are excluded assuming a dark-matter candidate mass of 1 gev and unitary couplings. for scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross-section of 300 times the predicted rate for mediators with masses between 10 and 50 gev and assuming a dark-matter mass of 1 gev and unitary coupling. constraints on colour-charged scalar simplified models are also presented. assuming a dark-matter particle mass of 35 gev, mediator particles with mass below 1.1 tev are excluded for couplings yielding a dark-matter relic density consistent with measurements.
WOS关键词	HADRON COLLIDERS ; PARTON DISTRIBUTIONS ; MEASURING MASSES ; PAIR PRODUCTION ; CROSS-SECTION ; LHC ; CONSTRAINTS
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:000422660200005
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177869
专题	高能物理研究所
通讯作者	Aaboud, M.
作者单位	1.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.TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey 8.CNRS, IN2P3, LAPP, Annecy Le Vieux, France 9.CNRS, IN2P3, LAPP, Annecy Le Vieux, France 10.Univ Savoie Mt Blanc, Annecy Le Vieux, France
推荐引用方式 GB/T 7714	Aaboud, M.,Aad, G.,Abbott, B.,et al. Search for dark matter produced in association with bottom or top quarks in root s=13 tev pp collisions with the atlas detector[J]. European physical journal c,2018,78(1):36.
APA	Aaboud, M..,Aad, G..,Abbott, B..,Abdinov, O..,Abeloos, B..,...&Haley, J..(2018).Search for dark matter produced in association with bottom or top quarks in root s=13 tev pp collisions with the atlas detector.European physical journal c,78(1),36.
MLA	Aaboud, M.,et al."Search for dark matter produced in association with bottom or top quarks in root s=13 tev pp collisions with the atlas detector".European physical journal c 78.1(2018):36.

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