ITP OpenIR  > 理论物理所科研产出  > SCI论文
Bian, LG; Liu, D1; Shu, J1,2
Low scale composite Higgs model and 1.8 similar to 2 TeV diboson excess
Source PublicationINTERNATIONAL JOURNAL OF MODERN PHYSICS A
Language英语
KeywordPHENOMENOLOGICAL LAGRANGIANS
AbstractWe consider a simple solution to explain the recent diboson excess observed by ATLAS and CMS Collaborations in models with custodial symmetry SU(2)(L) x SU(2)(R) -> SU(2)(C). The SU(2)(L) triplet vector boson rho with mass range of 1.8 similar to 2 TeV would be produced through the Drell Yan process with sizable diboson decay branching to account for the excess. The other SU(2)(L) x SU(2)(R) bidoublet axial vector boson a would cancel all deviations of electroweak obervables induced by rho even if the SM fermions mix with some heavy vector-like (composite) fermions which couple to rho ("nonuniversally partially composite"), therefore allows arbitrary couplings between each SM fermion and rho. We present our model in the "General Composite Higgs" framework with SO(5) x U(1)(X) > SO(4) x U(1)(X) breaking at scale f and demand the first Wein-berg sum rule and positive gauge boson form factors as the theoretical constraints. We find that our model can fit the diboson excess very well if the left-handed SM light quarks, charged leptons and tops have zero, zero/moderately small and moderate/large composite components for reasonable values of g(rho) and f. The correlation between tree level S parameter and the h -> Z gamma suggest a large a contribution to h -> Z gamma and it is indeed a Omicron(1) effect in our parameter space which provides a strong hint for our scenario if this diboson excess is confirmed by the 13 similar to 14 TeV LHC Run II.
2018
ISSN0217-751X
Volume33Issue:11Pages:1841007
Subject AreaPhysics
MOST Discipline CataloguePhysics, Nuclear ; Physics, Particles & Fields
DOI10.1142/S0217751X18410075
Indexed BySCIE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22918
Collection理论物理所科研产出_SCI论文
Affiliation1.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
3.CAS Ctr Excellence Particle Phys, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Bian, LG,Liu, D,Shu, J. Low scale composite Higgs model and 1.8 similar to 2 TeV diboson excess[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2018,33(11):1841007.
APA Bian, LG,Liu, D,&Shu, J.(2018).Low scale composite Higgs model and 1.8 similar to 2 TeV diboson excess.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,33(11),1841007.
MLA Bian, LG,et al."Low scale composite Higgs model and 1.8 similar to 2 TeV diboson excess".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 33.11(2018):1841007.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Bian, LG]'s Articles
[Liu, D]'s Articles
[Shu, J]'s Articles
Baidu academic
Similar articles in Baidu academic
[Bian, LG]'s Articles
[Liu, D]'s Articles
[Shu, J]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Bian, LG]'s Articles
[Liu, D]'s Articles
[Shu, J]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.