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Rare Z-decay into light CP-odd Higgs bosons: a comparative study in different new physics models
Cao, Junjie; Heng, Zhaoxia; Yang, Jin Min; Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China
2010
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
ISSN1126-6708
期号11页码:-
摘要Various new physics models predict a light CP-odd Higgs boson (labeled as a) and open up new decay modes for Z-boson, such as Z -> (f) over bar fa, Z -> a gamma and Z -> aaa, which could be explored at the GigaZ option of the ILC. In this work we investigate these rare decays in several new physics models, namely the type-II two Higgs doublet model (type-II 2HDM), the lepton-specific two Higgs doublet model (L2HDM), the nearly minimal supersymetric standard model (nMSSM) and the next-to-minimal supersymmetric standard model (NMSSM). We find that in the parameter space allowed by current experiments, the branching ratios can reach 10(-4) for Z -> (f) over bar fa (f = b,tau), 10(-9) for Z -> a gamma and 10(-3) for Z -> aaa, which implies that the decays Z -> (f) over bar fa and Z -> aaa may be accessible at the GigaZ option. Moreover, since different models predict different patterns of the branching ratios, the measurement of these rare decays at the GigaZ may be utilized to distinguish the models.
部门归属[Cao, JJ] Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China; [Heng, ZX; Yang, JM] Acad Sinica, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
关键词Supersymmetric Standard Model e(+)e(-) Collisions Opal Detector Search Lep Colliders Mssm Phenomenology Parameters Neutralino
学科领域Physics
资助者HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10]
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收录类别SCI
资助者HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10] ; HASTIT[2009HASTIT004]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences[KJCX2.YW.W10]
WOS记录号WOS:000284962600050
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5024
专题理论物理所SCI论文
通讯作者Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China
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GB/T 7714
Cao, Junjie,Heng, Zhaoxia,Yang, Jin Min,et al. Rare Z-decay into light CP-odd Higgs bosons: a comparative study in different new physics models[J]. JOURNAL OF HIGH ENERGY PHYSICS,2010(11):-.
APA Cao, Junjie,Heng, Zhaoxia,Yang, Jin Min,&Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.(2010).Rare Z-decay into light CP-odd Higgs bosons: a comparative study in different new physics models.JOURNAL OF HIGH ENERGY PHYSICS(11),-.
MLA Cao, Junjie,et al."Rare Z-decay into light CP-odd Higgs bosons: a comparative study in different new physics models".JOURNAL OF HIGH ENERGY PHYSICS .11(2010):-.
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