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Type: Journal article
Title: Testing neutrino masses in the R-parity violating minimal supersymmetric standard model with LHC results
Author: Hanussek, M.
Kim, J.
Citation: Physical Review D - Particles, Fields, Gravitation and Cosmology, 2012; 85(11):115021-1-115021-14
Publisher: American Physical Society
Issue Date: 2012
ISSN: 1550-7998
Statement of
M. Hanussek, J. S. Kim
Abstract: Within the R-parity violating minimal supersymmetric standard model, we use a hierarchical ansatz for the lepton-number violating trilinear Yukawa couplings by relating them to the corresponding Higgs-Yukawa couplings. This ansatz reduces the number of free parameters in the lepton-number violating sector from 36 to 6. Baryon-number violating terms are forbidden by imposing the discrete gauge symmetry baryon triality. We fit the lepton-number violating parameters to the most recent neutrino oscillation data, including the mixing angle θ₁₃ found by Daya Bay. We find that we obtain phenomenologically viable neutrino masses and mixings only in the case of normal ordered neutrino masses and that the lepton-number violating sector is unambiguously determined by neutrino oscillation data. We discuss the resulting collider signals for the case of a neutralino as well as a scalar tau lightest supersymmetric particle. We use the ATLAS searches for multijet events and large transverse missing momentum in the 0, 1, and 2 lepton channel with 7 TeV center-of-mass energy in order to derive exclusion limits on the parameter space of this R-parity violating supersymmetric model.
Rights: © 2012 American Physical Society
RMID: 0030030524
DOI: 10.1103/PhysRevD.85.115021
Appears in Collections:Chemistry and Physics publications

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