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Cao, JJ; Shang, LL; Yang, JM; Zhang, Y; Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
Explanation of the ATLAS Z-peaked excess by squark pair production in the NMSSM
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordSupersymmetry Phenomenology
AbstractThe ATLAS collaboration recently reported a 3 sigma excess in the leptonic-Z + jets + E-T(miss) channel. We intend to interpret this excess by squark pair production in the Next-to-Minimal Supersymmetric Standard Model (NMSSM). The decay chain we employ is (q) over tilde -> q (chi) over tilde (0)(2) -> q (chi) over tilde (0)(1)Z, where (chi) over tilde (0)(1) and (chi) over tilde (0)(2) denote the lightest and the next-to-lightest neutralinos with singlino and bino as their dominant components respectively. Our simulations indicate that after considering the constraints from the ATLAS searches for jets + E-T(miss) signal the central value of the excess can be obtained for m((q) over tilde) less than or similar to 1.2TeV, and if the constraint from the CMS on-Z search is further considered, more than 10 signal events are still attainable for m((q) over tilde) less than or similar to 750GeV. Compared with the interpretation by gluino pair production, the squark explanation allows for a significantly wider range of m((q) over tilde) as well as a less compressed SUSY mass spectrum. We also show that the squark explanation will be readily tested at the initial stage of the 14TeV LHC.
2015
Issue10Pages:178
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1007/JHEP10(2015)178
Indexed BySCI
Funding OrganizationNational 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)
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/20811
Collection理论物理所科研产出_SCI论文
Corresponding AuthorCao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
Recommended Citation
GB/T 7714
Cao, JJ,Shang, LL,Yang, JM,et al. Explanation of the ATLAS Z-peaked excess by squark pair production in the NMSSM[J]. JOURNAL OF HIGH ENERGY PHYSICS,2015(10):178.
APA Cao, JJ,Shang, LL,Yang, JM,Zhang, Y,&Cao, JJ .(2015).Explanation of the ATLAS Z-peaked excess by squark pair production in the NMSSM.JOURNAL OF HIGH ENERGY PHYSICS(10),178.
MLA Cao, JJ,et al."Explanation of the ATLAS Z-peaked excess by squark pair production in the NMSSM".JOURNAL OF HIGH ENERGY PHYSICS .10(2015):178.
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