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Related papers: Measuring Neutrino Mixing Angles at LHC

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We present a reanalysis of nucleon decay in the context of the R-parity violating MSSM, updating bounds on R-parity violating parameters against recent experimental and lattice results. We pay particular attention to the derivation of these…

High Energy Physics - Phenomenology · Physics 2021-07-28 Nidal Chamoun , Florian Domingo , Herbert K. Dreiner

We briefly outline the two popular approaches on radiative corrections to neutrino masses and mixing angles, and then carry out a detailed numerical analysis for a consistency check between them in MSSM. We find that the two approaches are…

High Energy Physics - Phenomenology · Physics 2008-11-26 Mrinal Kumar Das , Mahadev Patgiri , N. Nimai Singh

Within the left-right symmetric model (LRM) the $Z$ boson decay into the channel $Z\to\tau\mu$ are investigated. The branching ratios of this decay is found in the third order of the perturbation theory. The obtained expression does not…

High Energy Physics - Phenomenology · Physics 2019-02-06 O. M. Boyarkin , G. G. Boyarkina , D. S. Vasileuskaya

We compute one loop neutrino masses in the R-parity violating Minimal Supersymmetric Model, including the bilinear R-parity violating masses in the mass insertion approximation. To the order we calculate, our results are independent of the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Sacha Davidson , Marta Losada

Low energy supersymmetry with bilinear breaking of R-parity leads to a weak-scale seesaw mechanism for the atmospheric neutrino scale and a radiative mechanism for the solar neutrino scale. The model has striking implications for collider…

High Energy Physics - Phenomenology · Physics 2009-09-17 W. Porod , M. Hirsch , J. Romao , J. W. F. Valle

The existence of heavy neutrinos mediating neutrino masses via a type-I seesaw can be directly probed at the LHC, or indirectly in rare lepton flavor-violating processes. The synergy between these two approaches requires a direct…

High Energy Physics - Phenomenology · Physics 2013-05-30 J. A. Aguilar-Saavedra , F. R. Joaquim

Left-right symmetric models (LRSM) were proposed to reconcile the apparent parity violation in weak interactions with our intrinsic notion of fundamental parity symmetry. It was quickly realized that LRSM offers a viable framework for…

High Energy Physics - Phenomenology · Physics 2024-03-04 Kevin A. Urquía-Calderón

We examine the case of neutralino dark matter in the focus point region of the MSSM, in which the scalar sparticles are too heavy to be produced at the LHC. Whilst it has been previously asserted that the LHC alone would fail to constrain…

High Energy Physics - Phenomenology · Physics 2014-11-20 M. J. White , F. Feroz

It is shown that the R-parity violating decays of the lighter top squarks (${\widetilde t}_1$) triggered by the lepton number violating couplings $\lambda^{\prime}_{i33}$, where the lepton family index i = 1-3, can be observed at the LHC…

High Energy Physics - Phenomenology · Physics 2009-11-06 Amitava Datta , Sujoy Poddar

$R$-parity violating supersymmetric models (RPV SUSY) are becoming increasingly more appealing than its $R$-parity conserving counterpart in view of the hitherto non-observation of SUSY signals at the LHC. In this paper, we discuss RPV…

High Energy Physics - Phenomenology · Physics 2015-10-12 Vasiliki A. Mitsou

Neutrinoless double beta ($\znbb$) decay is considered within bilinear R-parity breaking supersymmetry, including the full one-loop corrections to the neutrino-neutralino mass matrix. Expected rates for $\znbb$ decay in this model are…

High Energy Physics - Phenomenology · Physics 2009-09-17 M. Hirsch , J. C. Romao , J. W. F. Valle

The measurement of sparticle masses in the Minimal Supersymmetric Standard Model at the LHC is analysed, in the scenario where the lightest neutralino decays into three quarks. Such decays, occurring through the baryon-number violating…

High Energy Physics - Phenomenology · Physics 2011-07-19 B. C. Allanach , A. J. Barr , L. Drage , C. G. Lester , D. Morgan , M. A. Parker , P. Richardson B. R. Webber

We consider the neutrino oscillations within the minimal supersymmetric standard model with R-parity violation. The Super-Kamiokande atmospheric neutrino data are used to set limits on the bilinear R-parity violating terms. These very…

High Energy Physics - Phenomenology · Physics 2009-10-31 Vadim Bednyakov , Amand Faessler , Sergey Kovalenko

The simplest unified extension of the Minimal Supersymmetric Standard Model with bi-linear R--Parity violation provides a predictive scheme for neutrino masses which can account for the observed atmospheric and solar neutrino anomalies in…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. C. Romao , M. A. Diaz , M. Hirsch , W. Porod , J. W. F Valle

In supersymmetric models, scalar top quarks, or stops, generically have parity-violating couplings to top quarks. As a result, tops produced in stop decays should be polarized. In this paper, we will argue that this effect may be observable…

High Energy Physics - Phenomenology · Physics 2009-04-03 Maxim Perelstein , Andreas Weiler

I briefly summarize neutrino oscillation results and discuss their robustness. I mention recent attempts to understand the pattern of neutrino mixing within various seesaw mechanisms, with or without supersymmetry and/or flavor symmetries.…

High Energy Physics - Phenomenology · Physics 2014-11-20 J. W. F. Valle

We take both the bilinear and trilinear R-parity violating couplings in supersymmetric models as a source of neutrino masses and mixings. Using the solar and atmospheric data and the Chooz constraint we determine the allowed ranges of those…

High Energy Physics - Phenomenology · Physics 2007-05-23 Asmaa Abada , Gautam Bhattacharyya , Marta Losada

We consider neutrino masses generated at tree level and at one loop, through fermion--sfermion loop diagrams, in the MSSM with R-parity violation. Using the $(3\times 3)$ mass and mixing matrices for three generations of neutrinos and the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Asmaa Abada , Marta Losada

In the framework of the left-right symmetric model the CP-parity violation has been studied in heavy Majorana neutrino decays $N\rightarrow e^{\mp} \mu^{\pm} n$. The numerical estimates of CP-asymmetry for different masses of neutrino and…

High Energy Physics - Phenomenology · Physics 2010-11-01 R. A. Alanakyan , H. M. Asatrian , A. N. Ioannisian , S. A. Chatrchyan

We consider an extension of the supersymmetric standard model which includes singlet Higgs superfield representations (in three generations) to generate neutrino masses via the see-saw mechanism. The resulting theory may then exhibit…

High Energy Physics - Phenomenology · Physics 2009-09-25 Rouzbeh Allahverdi , Bruce A. Campbell , Keith A. Olive