Supersymmetric type-II seesaw mechanism: CERN LHC and lepton flavor violating phenomenology

Journal Article · Sat Nov 01 04:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.093004· OSTI ID:21254600

Hirsch, M; Kaneko, S; Porod, W ^[1]

---

1. AHEP Group, Instituto de Fisica Corpuscular-CSIC/Universitat de Valencia Edificio de Institutos de Paterna, Apartado 22085, E-46071 Valencia (Spain)

We study the supersymmetric version of the type-II seesaw mechanism assuming minimal supergravity boundary conditions. We calculate branching ratios for lepton flavor violating (LFV) scalar tau decays, potentially observable at the LHC, as well as LFV decays at low energy, such as l{sub i}{yields}l{sub j}+{gamma}, and compare their sensitivity to the unknown seesaw parameters. In the minimal case of only one triplet coupling to the standard model lepton doublets, ratios of LFV branching ratios can be related unambiguously to neutrino oscillation parameters. We also discuss how measurements of soft SUSY breaking parameters at the LHC can be used to indirectly extract information of the seesaw scale.

• OSTI ID: 21254600
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 78; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOUNDARY CONDITIONS
BRANCHING RATIO
CERN LHC
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
COUPLING
FLAVOR MODEL
LEPTONS
NEUTRINO OSCILLATION
PARTICLE DECAY
SENSITIVITY
STANDARD MODEL
SUPERGRAVITY
SUPERSYMMETRY
SYMMETRY BREAKING
TAU PARTICLES
TRIPLETS