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	Observation of electroweak production of same-sign w boson pairs in the two jet and two same-sign lepton final state in proton-proton collisions at root s=13 tev
	Sirunyan, A. M.1; Tumasyan, A.1; Adam, W.2; Ambrogi, F.2; Asilar, E.2; Bergauer, T.2; Brandstetter, J.2; Brondolin, E.2; Dragicevic, M.2; Ero, J.2
刊名	Physical review letters
	2018-02-22
卷号	120期号:8页码:17
ISSN号	0031-9007
DOI	10.1103/physrevlett.120.081801
通讯作者	Sirunyan, a. m.()
英文摘要	The first observation of electroweak production of same-sign w boson pairs in proton-proton collisions is reported. the data sample corresponds to an integrated luminosity of 35.9 fb(-1) collected at a center-of-mass energy of 13 tev with the cms detector at the lhc. events are selected by requiring exactly two leptons (electrons or muons) of the same charge, moderate missing transverse momentum, and two jets with a large rapidity separation and a large dijet mass. the observed significance of the signal is 5.5 standard deviations, where a significance of 5.7 standard deviations is expected based on the standard model. the ratio of measured event yields to that expected from the standard model at leading order is 0.90 +/- 0.22. a cross section measurement in a fiducial region is reported. bounds are given on the structure of quartic vector boson interactions in the framework of dimension-8 effective field theory operators and on the production of doubly charged higgs bosons.
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000425738500002
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2178016
专题	高能物理研究所
通讯作者	Sirunyan, A. M.
作者单位	1.Yerevan Phys Inst, Yerevan, Armenia 2.Inst Hochenergiephys, Vienna, Austria 3.Inst Nucl Problems, Minsk, Byelarus 4.Univ Antwerp, Antwerp, Belgium 5.Vrije Univ Brussel, Brussels, Belgium 6.Univ Libre Bruxelles, Brussels, Belgium 7.Univ Ghent, Ghent, Belgium 8.Catholic Univ Louvain, Louvain, Belgium 9.Univ Mons, Mons, Belgium 10.Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil
推荐引用方式 GB/T 7714	Sirunyan, A. M.,Tumasyan, A.,Adam, W.,et al. Observation of electroweak production of same-sign w boson pairs in the two jet and two same-sign lepton final state in proton-proton collisions at root s=13 tev[J]. Physical review letters,2018,120(8):17.
APA	Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Ambrogi, F..,Asilar, E..,...&Guisao, J. Mejia.(2018).Observation of electroweak production of same-sign w boson pairs in the two jet and two same-sign lepton final state in proton-proton collisions at root s=13 tev.Physical review letters,120(8),17.
MLA	Sirunyan, A. M.,et al."Observation of electroweak production of same-sign w boson pairs in the two jet and two same-sign lepton final state in proton-proton collisions at root s=13 tev".Physical review letters 120.8(2018):17.

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