The University of Southampton
University of Southampton Institutional Repository

Four-lepton LHC events from MSSM Higgs boson decays into neutralino and chargino pairs

Record type: Article

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 or A^0 to tilde{chi}_i^0 tilde{chi}_j^0 (i,j = 2,3,4) as well as H^0 or A^0 to tilde{chi}_1^{pm} tilde{chi}_2^{mp}, tilde{chi}_2^+ tilde{chi}_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 or A^0 to tilde{chi}_2^0 tilde{chi}_2^0 decays only. In particular, H^0,A^0 bosons with quite heavy masses, approaching ~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.

Full text not available from this repository.

Citation

Bisset, Mike, Li, Jun, Kersting, Nick, Moortgat, Filip and Moretti, Stefano (2007) Four-lepton LHC events from MSSM Higgs boson decays into neutralino and chargino pairs Pre-print, pp. 1-41. (doi:10.1088/1126-6708/2009/08/037).

More information

Published date: 7 September 2007
Additional Information: arXiv:0709.1029v1
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 57086
URI: http://eprints.soton.ac.uk/id/eprint/57086
PURE UUID: 7fd481b8-a578-4fbf-a85f-a5baf2a82102

Catalogue record

Date deposited: 13 Aug 2008
Last modified: 17 Jul 2017 14:29

Export record

Altmetrics

Contributors

Author: Mike Bisset
Author: Jun Li
Author: Nick Kersting
Author: Filip Moortgat
Author: Stefano Moretti

University divisions


Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×