Nondiagonal charged lepton Yukawa matrix: Effects on neutrino mixing in supersymmetry

Cottin, G.; Díaz, M. A.; Koch, Benjamin

doi:10.1103/physrevd.85.095019

Cited by 3 publications

(3 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, the PMNS matrix is a product of the matrix which diagonalizes the neutrino mass matrix and the corresponding matrix for the charged leptons, in analogy with the CKM matrix, see reference [85] for example. In the MSSM, the charged leptons can be taken to be diagonal without loss of generality.…”

Section: Discussionmentioning

confidence: 99%

LSP squark decays at the LHC and the neutrino mass hierarchy

et al. 2014

View full text Add to dashboard Cite

The existence of R-parity in supersymmetric models can be naturally explained as being a discrete subgroup of gauged baryon minus lepton number (B − L). The most minimal supersymmetric B − L model triggers spontaneous R-parity violation, while remaining consistent with proton stability. This model is well-motivated by string theory and makes several interesting, testable predictions.Furthermore, R-parity violation contributes to neutrino masses, thereby connecting the neutrino sector to the decay of the lightest supersymmetric particle (LSP). This paper analyzes the decays of third generation squark LSPs into a quark and a lepton. In certain cases, the branching ratios into charged leptons reveal information about the neutrino mass hierarchy, a current goal of experimental neutrino physics, as well as the θ 23 neutrino mixing angle. Furthermore, optimization of leptoquark searches for this scenario is discussed. Using currently available data, the lower bounds on the third generation squarks are computed.

show abstract

Section: Discussionmentioning

confidence: 99%

LSP squark decays at the LHC and the neutrino mass hierarchy

et al. 2014

View full text Add to dashboard Cite

show abstract

“…In Split-SUSY with BRpV, a possible way to account for a tree level solar mass is the introduction of a dimension-5 operator that gives a mass term to the neutrinos after the Higgs field acquires a vev [33,61,62]. This operator may come from an unknown quantum theory of gravity.…”

Section: Neutrino Masses and Mixingsmentioning

confidence: 99%

Gravitino dark matter in split supersymmetry with bilinear R-parity violation

et al. 2014

Self Cite

View full text Add to dashboard Cite

In Split-SUSY with BRpV we show that the Gravitino DM solution is consistent with experimental evidence as regards its relic density and life time. We arrive at this conclusion by performing a complete numerical and algebraic study of the parameter space, including constraints from the recently determined Higgs mass, updated neutrino physics, and BBN constraints on NLSP decays. The Higgs mass requires a relatively low Split-SUSY mass scale, which is naturally smaller than usual values for reheating temperature, allowing the use of the standard expression for the relic density. We include restrictions from neutrino physics with three generations, and we notice that the gravitino decay width depends on the atmospheric neutrino mass scale. We calculate the neutralino decay rate and find it consistent with BBN. We mention some implications on indirect DM searches.

show abstract

“…One way to fix this problem would be the inclusion of a gravity motivated term to the neutrino mass matrix [13]. A different approach is to keep two Higgs doublets light with all the sfermions masses at a high scale, scenario known as Partial Split Supersymmetry (PSS) [14][15][16]. In this scenario, despite the fact that the lightest neutralino is unstable due to the presence of BRpV, the gravitino is a viable dark matter candidate [17,18].…”

mentioning

confidence: 99%

RGE effects on neutrino masses in partial split supersymmetry

Cadiz

Díaz

2014

Int. J. Mod. Phys. A

Self Cite

View full text Add to dashboard Cite

We show that the running of the Higgs-gaugino-higgsino couplings present in Partial Split Supersymmetry can severely affect the neutrino masses generated through Bilinear R-parity Violation. We find a working scenario where the predicted neutrino observables satisfy the experimental constraints when the running is neglected. After including the running, we show that already with a split supersymmetric scale of 10 4 GeV the atmospheric mass leaves the allowed experimental window, and that the solar mass leaves it even earlier, with a split supersymmetric scale of 10 3 GeV. This shows that the correct prediction of neutrino observables in these models necessitates the inclusion of the running of these couplings.

show abstract

Nondiagonal charged lepton Yukawa matrix: Effects on neutrino mixing in supersymmetry

Cited by 3 publications

References 43 publications

LSP squark decays at the LHC and the neutrino mass hierarchy

LSP squark decays at the LHC and the neutrino mass hierarchy

Gravitino dark matter in split supersymmetry with bilinear R-parity violation

RGE effects on neutrino masses in partial split supersymmetry

Contact Info

Product

Resources

About