QQ客服 官方微博 反馈留言

	Four-lepton LHC events from MSSM Higgs boson decays into neutralino and chargino pairs
	Bisset, Mike ; Li, Jun ; Kersting, Nick ; Lu, Ran ; Moortgat, Filip ; Moretti, Stefano
	2010-10-12 ; 2010-10-12
关键词	Supersymmetry Phenomenology LARGE HADRON COLLIDER STANDARD MODEL SUPERCOLLIDERS SUPERSYMMETRY PHYSICS OBSERVABILITY PRECISION TEVATRON SEARCH REACH Physics, Particles & Fields
中文摘要	Heavy neutral Higgs boson production and decay into neutralino and chargino pairs is studied at the Large Hadron Collider in the context of the minimal supersymmetric standard model. Higgs boson decays into the heavier neutralino and chargino states, i.e., H-0, A(0) -> (chi) over tilde (0)(2)(chi) over tilde (0,)(3) (chi) over tilde (0)(2)(chi) over tilde (0)(4), (chi) over tilde (0)(3)(chi) over tilde (0)(3), (chi) over tilde (0)(3)(chi) over tilde (0)(4), (chi) over tilde (0)(4)(chi) over tilde (0)(4) as well as H-0, A(0) -> (chi) over tilde (+/-)(1)(chi) over tilde (-/+)(2), (chi) over tilde (+)(2)(chi) over tilde (-)(2) (all leading to four-lepton plus missing transverse energy final states), is found to improve the possibilities of discovering such Higgs states beyond those previously identified by considering H-0, A(0) -> (chi) over tilde (0)(2)(chi) over tilde (0)(2) decays only. In particular, H-0, A(0) bosons with quite heavy masses, approaching similar to 800 GeV in the so-called 'decoupling region' where no clear SM signatures for the heavier MSSM Higgs bosons are known to exist, can now be discerned, for suitable but not particularly restrictive configurations of the low energy supersymmetric parameters. The high M-A discovery reach for the H-0 and A(0) may thus be greatly extended. Full event-generator level simulations, including realistic detector effects and analyses of all significant backgrounds, are performed to delineate the potential H-0, A(0) discovery regions. The wedgebox plot technique is also utilized to further analyze the 4l plus missing transverse energy signal and background events. This study marks the first thorough and reasonably complete analysis of this important class of MSSM Higgs boson signature modes. In fact, this is the first time discovery regions including all possible neutralino and chargino decay modes of the Higgs bosons have ever been mapped out.
语种	英语 ; 英语
出版者	INT SCHOOL ADVANCED STUDIES ; TRIESTE ; VIA BEIRUT 2-4, I-34014 TRIESTE, ITALY
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81573]
专题	清华大学
推荐引用方式 GB/T 7714	Bisset, Mike,Li, Jun,Kersting, Nick,et al. Four-lepton LHC events from MSSM Higgs boson decays into neutralino and chargino pairs[J],2010, 2010.
APA	Bisset, Mike,Li, Jun,Kersting, Nick,Lu, Ran,Moortgat, Filip,&Moretti, Stefano.(2010).Four-lepton LHC events from MSSM Higgs boson decays into neutralino and chargino pairs..
MLA	Bisset, Mike,et al."Four-lepton LHC events from MSSM Higgs boson decays into neutralino and chargino pairs".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。