中国科学院理论物理研究所机构知识库
Advanced  
ITP OpenIR  > 理论物理所2016年知识产出  > 期刊论文
题名: Closing up a light stop window in natural SUSY at LHC
作者: Kobakhidze, A ;  Liu, N ;  Wu, L ;  Yang, JM ;  Zhang, MC
刊名: PHYSICS LETTERS B
出版日期: 2016
卷号: 755, 页码:76-81
学科分类: Astronomy & Astrophysics; Physics
DOI: http://dx.doi.org/10.1016/j.physletb.2016.02.003
通讯作者: Liu, N (reprint author), Henan Normal Univ, Inst Theoret Phys, Xinxiang 453007, Peoples R China. ;  Wu, L (reprint author), Univ Sydney, Sch Phys, ARC Ctr Excellence Particle Phys Terascale, Sydney, NSW 2006, Australia. ;  Zhang, MC (reprint author), Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: Top squark (stop) plays a key role in the radiative stability of the Higgs boson mass in supersymmetry (SUSY). In this work, we use the LHC Run-1 data to determine the lower mass limit of the right-handed stop in a natural SUSY scenario, where the higgsinos (chi) over tilde (0)(1,2) and (chi) over tilde (+/-)(1) are light and nearly degenerate. We find that the stop mass has been excluded up to 430 GeV for m((chi) over tilde 10) less than or similar to 250 GeV and to 540 GeV for m m((chi) over tilde 10) similar or equal to 100 GeV by the Run-1 SUSY searches for 2b + E-T(miss) and 1l + jets+ E-T(miss), respectively. In a small strip of parameter space with m((chi) over tilde 10) greater than or similar to 190GeV, the stop mass can still be as light as 210 GeV and compatible with the Higgs mass measurement and the monojet bound. The 14 TeV LHC with a luminosity of 20 fb(-1) can further cover such a light stop window by monojet and 2b + E-T(miss) searches and push the lower bound of the stop mass to 710 GeV. We also explore the potential to use the Higgs golden ratio, D gamma gamma = sigma(pp -> h -> gamma gamma)/sigma(pp -> h -> ZZ* -> 4l(+)), as a complementary probe for the light and compressed stop. If this golden ratio can be measured at percent level at the high luminosity LHC (HL-LHC) or future e(+)e(-) colliders, the light stop can be excluded for most of the currently allowed parameter region. (C) 2016 The Authors. Published by Elsevier B.V.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Nuclear ;  Physics, Particles & Fields
关键词[WOS]: MADANALYSIS 5 ;  DARK-MATTER ;  ELECTROWEAK BARYOGENESIS ;  PP COLLISIONS ;  FORTRAN CODE ;  MSSM ;  BREAKING ;  DECAYS ;  SQUARK ;  COLLIDERS
收录类别: SCI
项目资助者: Australian Research Council ;  National Natural Science Foundation of China (NNSFC) [11275057, 11305049, 11375001, 11405047, 11135003, 11275245] ;  Specialised Research Fund for the Doctoral Program of Higher Education [20134104120002] ;  Startup Foundation for Doctors of Henan Normal University [11112] ;  Joint Funds of the National Natural Science Foundation of China [U1404113]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21693
Appears in Collections:理论物理所2016年知识产出_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Closing up a light stop window in natural SUSY at LHC - Kobakhidze et al. - 2016.pdf(824KB)----开放获取View Download

Recommended Citation:
Kobakhidze, A,Liu, N,Wu, L,et al. Closing up a light stop window in natural SUSY at LHC[J]. PHYSICS LETTERS B,2016,755:76-81.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Kobakhidze, A]'s Articles
 [Liu, N]'s Articles
 [Wu, L]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Kobakhidze, A]‘s Articles
 [Liu, N]‘s Articles
 [Wu, L]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
文件名: Closing up a light stop window in natural SUSY at LHC - Kobakhidze et al. - 2016.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

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

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院理论物理研究所 - Feedback
Powered by CSpace