ITP OpenIR  > 理论物理所2015年知识产出
Explanation of the ATLAS Z-peaked excess by squark pair production in the NMSSM
Cao, JJ; Shang, LL; Yang, JM; Zhang, Y; Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
2015
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号10页码:178
文章类型Article
摘要The 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.
关键词Supersymmetry Phenomenology
学科领域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] ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; 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)
DOIhttp://dx.doi.org/10.1007/JHEP10(2015)178
关键词[WOS]SEARCH ; BOSON
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] ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; 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)
WOS类目Physics, Particles & Fields
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20811
专题理论物理所2015年知识产出
通讯作者Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
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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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