Signals of a sneutrino (N)LSP at the LHC

Journal Article · Mon Feb 01 04:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.035012· OSTI ID:21409207

Katz, Andrey ^[1]; Tweedie, Brock ^[2]

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1. Department of Physics, University of Maryland, College Park, Maryland 20742 (United States)
2. Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218 (United States)

The sneutrino is a viable candidate for the next-to-lightest supersymmetric particle (NLSP) in supersymmetry spectra with gravitino LSP. In this work we study the collider implications of this possibility. In particular, we investigate whether the LHC can distinguish it (at least, in some cases) from alternative spectra, such as those with a neutralino LSP. We show that there exists a complete family of experimentally allowed and theoretically motivated spectra with sneutrino NLSP, which exhibit very distinctive multilepton signals that are difficult to fake within the next-to-minimal supersymmetric standard model. We study these signals in detail, including the techniques necessary to find them. We demonstrate our analysis approach on simulations incorporating backgrounds.

• OSTI ID: 21409207
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 3 Vol. 81; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
CERN LHC
CYCLIC ACCELERATORS
DETECTION
ELEMENTARY PARTICLES
FIELD THEORIES
GRAND UNIFIED THEORY
MATHEMATICAL MODELS
NEUTRINO DETECTION
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
RADIATION DETECTION
SIMULATION
SPARTICLES
SPECTRA
STANDARD MODEL
STORAGE RINGS
SUPERSYMMETRY
SYMMETRY
SYNCHROTRONS
UNIFIED GAUGE MODELS