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Search for higgs boson pair production in the b(b)over-barb(b)over-bar final state from pp collisions at root s=8 tevwith the atlas detector

文献类型:期刊论文

作者Aad, G.122,123; Abbott, B.155; Abdallah, J.217; Abdinov, O.14; Aben, R.148,149; Abolins, M.128; AbouZeid, O. S.225; Abramowicz, H.219; Abreu, H.218; Abreu, R.45
刊名European physical journal c
出版日期2015-09-09
卷号75期号:9页码:32
ISSN号1434-6044
DOI10.1140/epjc/s10052-015-3628-x
通讯作者Aad, g.()
英文摘要A search for higgs boson pair production pp -> hh is performed with 19.5 fb(-1) of proton-proton collision data at root s = 8tev, which were recorded by the atlas detector at the large hadron collider in 2012. the decay products of each higgs boson are reconstructed as a high-momentum b (b) over bar system with either a pair of small-radius jets or a single large-radius jet, the latter exploiting jet substructure techniques and associated b-tagged track-jets. no evidence for resonant or non-resonant higgs boson pair production is observed. the data are interpreted in the context of the randall-sundrum model with a warped extra dimension as well as the two-higgs-doublet model. an upper limit on the cross-section for pp -> g(kk)* -> hh -> b (b) over barb (b) over bar of 3.2 (2.3) fb is set for a kaluza-klein graviton g(kk)* mass of 1.0 (1.5) tev, at the 95 % confidence level. the search for non-resonant standard model hh production sets an observed 95 % confidence level upper limit on the production cross-section sigma(pp -> hh -> b (b) over barb (b) over bar) of 202 fb, compared to a standard model prediction of s(pp -> hh -> b (b) over barb (b) over bar) = 3.6 +/- 0.5fb.
WOS关键词PARTON DISTRIBUTIONS ; HADRON COLLIDERS ; STANDARD MODEL ; CROSS-SECTION ; LHC ; PROGRAM
WOS研究方向Physics
WOS类目Physics, Particles & Fields
语种英语
WOS记录号WOS:000366305400004
出版者SPRINGER
URI标识http://www.irgrid.ac.cn/handle/1471x/2176423
专题高能物理研究所
通讯作者Aad, G.
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, TR-06100 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 Mont 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
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Aad, G.,Abbott, B.,Abdallah, J.,et al. Search for higgs boson pair production in the b(b)over-barb(b)over-bar final state from pp collisions at root s=8 tevwith the atlas detector[J]. European physical journal c,2015,75(9):32.
APA Aad, G..,Abbott, B..,Abdallah, J..,Abdinov, O..,Aben, R..,...&Hauser, R..(2015).Search for higgs boson pair production in the b(b)over-barb(b)over-bar final state from pp collisions at root s=8 tevwith the atlas detector.European physical journal c,75(9),32.
MLA Aad, G.,et al."Search for higgs boson pair production in the b(b)over-barb(b)over-bar final state from pp collisions at root s=8 tevwith the atlas detector".European physical journal c 75.9(2015):32.

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