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	Measurements of the zz production cross sections in the 2l2 nu channel in proton-proton collisions at root s=7 and 8 tev and combined constraints on triple gauge couplings
	Khachatryan, V.1; Sirunyan, A. M.1; Tumasyan, A.1; Adam, W.2; Bergauer, T.2; Dragicevic, M.2; Eroe, J.2; Friedl, M.2; Fruehwirth, R.2,189; Ghete, V. M.2
刊名	European physical journal c
	2015-10-29
卷号	75期号:10页码:26
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-015-3706-0
通讯作者	Khachatryan, v.()
英文摘要	Measurements of the zz production cross sections in proton-proton collisions at center-of-mass energies of 7 and 8 tev are presented. candidate events for the leptonic decay mode zz -> 2l2 nu. where l denotes an electron or a muon, are reconstructed and selected from data corresponding to an integrated luminosity of 5.1 (19.6) fb(-1) at 7 (8) tev collected with the cms experiment. the measured cross sections, sigma(pp -> zz) = 5.1(1.4)(+1.5) (stat)(-1.1)(+1.4) (syst) +/- 0.1 (lumi) pb at 7 tev, and 7.2(-0.8)(+0.8) (stat)(1.5)(+1.9) (syst) +/- 0.2 (lumi) pb at 8 tev, are in good agreement with the standard model predictions with next-to-leading-order accuracy. the selected data are analyzed to search for anomalous triple gauge couplings involving the zz final state. in the absence of any deviation from the standard model predictions, limits are set on the relevant parameters. these limits are then combined with the previously published cms results for zz in 4l final states, yielding the most stringent constraints on the anomalous couplings.
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:000379515400002
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2176599
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 Hochenergiephy OeAW, Vienna, Austria 3.Natl Ctr Particle & High Energy Phys, 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 La Neuve, Belgium 9.Univ Mons, Mons, Belgium 10.Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil
推荐引用方式 GB/T 7714	Khachatryan, V.,Sirunyan, A. M.,Tumasyan, A.,et al. Measurements of the zz production cross sections in the 2l2 nu channel in proton-proton collisions at root s=7 and 8 tev and combined constraints on triple gauge couplings[J]. European physical journal c,2015,75(10):26.
APA	Khachatryan, V..,Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Bergauer, T..,...&Shmatov, S..(2015).Measurements of the zz production cross sections in the 2l2 nu channel in proton-proton collisions at root s=7 and 8 tev and combined constraints on triple gauge couplings.European physical journal c,75(10),26.
MLA	Khachatryan, V.,et al."Measurements of the zz production cross sections in the 2l2 nu channel in proton-proton collisions at root s=7 and 8 tev and combined constraints on triple gauge couplings".European physical journal c 75.10(2015):26.

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