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Interpreting the 750 GeV diphoton excess by the singlet extension of the Manohar-Wise model
Cao, JJ; Han, CC; Shang, LL; Su, W; Yang, JM; Zhang, Y; Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.; Zhang, Y (reprint author), Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2016
发表期刊PHYSICS LETTERS B
卷号755页码:456-463
文章类型Article
摘要The evidence of a new scalar particle X from the 750 GeV diphoton excess, and the absence of any other signal of new physics at the LHC so far suggest the existence of new colored scalars, which may be moderately light and thus can induce sizable Xgg and X gamma gamma couplings without resorting to very strong interactions. Motivated by this speculation, we extend the Manohar-Wise model by adding one gauge singlet scalar field. The resulting theory then predicts one singlet dominated scalar phi as well as three kinds of color-octet scalars, which can mediate through loops the phi gg and phi gamma gamma interactions. After fitting the model to the diphoton data at the LHC, we find that in reasonable parameter regions the excess can be explained at 1 sigma level by the process gg -> phi -> gamma gamma.,and the best points predict the central value of the excess rate with chi(2)(min) = 2.32, which corresponds to a p-value of 0.68. We also consider the constraints from various LHC Run I signals, and we conclude that, although these constraints are powerful in excluding the parameter space of the model, the best points are still experimentally allowed. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.
学科领域Astronomy & Astrophysics ; Physics
资助者National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; World Premier International Research Center Initiative (WPI Initiative) ; World Premier International Research Center Initiative (WPI Initiative) ; World Premier International Research Center Initiative (WPI Initiative) ; World Premier International Research Center Initiative (WPI Initiative) ; MEXT, Japan ; MEXT, Japan ; MEXT, Japan ; MEXT, Japan ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; World Premier International Research Center Initiative (WPI Initiative) ; World Premier International Research Center Initiative (WPI Initiative) ; World Premier International Research Center Initiative (WPI Initiative) ; World Premier International Research Center Initiative (WPI Initiative) ; MEXT, Japan ; MEXT, Japan ; MEXT, Japan ; MEXT, Japan
DOIhttp://dx.doi.org/10.1016/j.physletb.2016.02.045
关键词[WOS]ELECTROWEAK SYMMETRY-BREAKING ; PROTON-PROTON COLLISIONS ; ROOT-S=8 TEV ; PP COLLISIONS ; HIGGS BOSONS ; RESONANCES ; SEARCH ; PAIRS ; ANATOMY ; QUARK
收录类别SCI
语种英语
资助者National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; World Premier International Research Center Initiative (WPI Initiative) ; World Premier International Research Center Initiative (WPI Initiative) ; World Premier International Research Center Initiative (WPI Initiative) ; World Premier International Research Center Initiative (WPI Initiative) ; MEXT, Japan ; MEXT, Japan ; MEXT, Japan ; MEXT, Japan ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; National Natural Science Foundation of China (NNSFC) [10821504, 11222548, 11121064, 11135003, 90103013, 11275245] ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; World Premier International Research Center Initiative (WPI Initiative) ; World Premier International Research Center Initiative (WPI Initiative) ; World Premier International Research Center Initiative (WPI Initiative) ; World Premier International Research Center Initiative (WPI Initiative) ; MEXT, Japan ; MEXT, Japan ; MEXT, Japan ; MEXT, Japan
WOS类目Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21696
专题理论物理所SCI论文
通讯作者Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.; Zhang, Y (reprint author), Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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Cao, JJ,Han, CC,Shang, LL,et al. Interpreting the 750 GeV diphoton excess by the singlet extension of the Manohar-Wise model[J]. PHYSICS LETTERS B,2016,755:456-463.
APA Cao, JJ.,Han, CC.,Shang, LL.,Su, W.,Yang, JM.,...&Zhang, Y .(2016).Interpreting the 750 GeV diphoton excess by the singlet extension of the Manohar-Wise model.PHYSICS LETTERS B,755,456-463.
MLA Cao, JJ,et al."Interpreting the 750 GeV diphoton excess by the singlet extension of the Manohar-Wise model".PHYSICS LETTERS B 755(2016):456-463.
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