Composite Octet Searches with Jet Substructure [electronic resource].
- Published
- Washington, D.C. : United States. Dept. of Energy, 2012.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- 22 pages : digital, PDF file
- Additional Creators
- SLAC National Accelerator Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- Many new physics models with strongly interacting sectors predict a mass hierarchy between the lightest vector meson and the lightest pseudoscalar mesons. We examine the power of jet substructure tools to extend the 7 TeV LHC sensitivity to these new states for the case of QCD octet mesons, considering both two gluon and two b-jet decay modes for the pseudoscalar mesons. We develop both a simple dijet search using only the jet mass and a more sophisticated jet substructure analysis, both of which can discover the composite octets in a dijet-like signature. The reach depends on the mass hierarchy between the vector and pseudoscalar mesons. We find that for the pseudoscalar-to-vector meson mass ratio below approximately 0.2 the simple jet mass analysis provides the best discovery limit; for a ratio between 0.2 and the QCD-like value of 0.3, the sophisticated jet substructure analysis has the best discovery potential; for a ratio above approximately 0.3, the standard four-jet analysis is more suitable.
- Report Numbers
- E 1.99:slac-pub-14509
slac-pub-14509 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
02/14/2012.
"slac-pub-14509"
"arXiv:1107.3563"
Submitted to Journal of High Energy Physics (JHEP) 2012 7 ISSN 1029--8479 FT
Bai, Yang; Shelton, Jessie. - Funding Information
- AC02-76SF00515
View MARC record | catkey: 13820852