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SUSY effects in R-b: Revisited under current experimental constraints
Su, W; Yang, JM; Yang, JM (reprint author), Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China.; Yang, JM (reprint author), Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan.
2016
发表期刊PHYSICS LETTERS B
卷号757页码:136-141
文章类型Article
摘要In this note we revisit the SUSY effects in R-b under current experimental constraints including the LHC Higgs data, the B-physics measurements, the dark matter relic density and direct detection limits, as well as the precision electroweak data. We first perform a scan to figure out the currently allowed parameter space and then display the SUSY effects in R-b. We find that although the SUSY parameter space has been severely restrained by current experimental data, both the general MSSM and the natural-SUSY scenario can still alter R-b with a magnitude sizable enough to be observed at future Z-factories (ILC, CEPC, FCC-ee, Super Z-factory) which produce 10(9)-10(12) Z-bosons. To be specific, assuming a precise measurement delta R-b = 2.0 x 10(-5) at FCC-ee, we can probe a right-handed stop up to 530 GeV through chargino-stop loops, probe a sbottom to 850 GeV through neutralino-sbottom loops and a charged Higgs to 770 GeV through the Higgs-top quark loops for a large tan beta. The full one-loop SUSY correction to R-b can reach 1 x 10(-4) in natural SUSY and 2 x 10(-4) in the general MSSM. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3).
关键词Supersymmetry R-b
学科领域Astronomy & Astrophysics ; Physics
资助者National Natural Science Foundation of China [11275245, 11135003] ; National Natural Science Foundation of China [11275245, 11135003] ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; National Natural Science Foundation of China [11275245, 11135003] ; National Natural Science Foundation of China [11275245, 11135003] ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP)
DOIhttp://dx.doi.org/10.1016/j.physletb.2016.03.075
关键词[WOS]SUPERSYMMETRIC STANDARD MODEL ; RADIATIVE-CORRECTIONS ; Z-RESONANCE ; MSSM ; LHC ; RENORMALIZATION ; SEARCH ; BOSON
收录类别SCI
语种英语
资助者National Natural Science Foundation of China [11275245, 11135003] ; National Natural Science Foundation of China [11275245, 11135003] ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; National Natural Science Foundation of China [11275245, 11135003] ; National Natural Science Foundation of China [11275245, 11135003] ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP)
WOS类目Astronomy & Astrophysics ; Physics, Nuclear ; 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/311006/21621
专题2016年知识产出
通讯作者Su, W; Yang, JM (reprint author), Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China.; Yang, JM (reprint author), Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan.
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Su, W,Yang, JM,Yang, JM ,et al. SUSY effects in R-b: Revisited under current experimental constraints[J]. PHYSICS LETTERS B,2016,757:136-141.
APA Su, W,Yang, JM,Yang, JM ,&Yang, JM .(2016).SUSY effects in R-b: Revisited under current experimental constraints.PHYSICS LETTERS B,757,136-141.
MLA Su, W,et al."SUSY effects in R-b: Revisited under current experimental constraints".PHYSICS LETTERS B 757(2016):136-141.
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