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We compare the discovery potential of the LHC for lepton number violating (LNV) signals with the sensitivity of current and future double beta decay experiments, assuming 0\nu\beta\beta decay is dominated by heavy particle exchange. We…

High Energy Physics - Phenomenology · Physics 2013-09-09 J. C. Helo , M. Hirsch , S. G. Kovalenko , H. Pas

The extension of Majorana neutrino mass mechanism of the neutrinoless double-beta decay ($0\nu\beta\beta$) with the inclusion of right-handed leptonic and hadronic currents is revisited. While only the exchange of light neutrinos is…

High Energy Physics - Phenomenology · Physics 2015-11-11 Dusan Stefanik , Rastislav Dvornicky , Fedor Simkovic , Petr Vogel

We consider the Standard Model with right-handed neutrinos to explain the masses of active neutrinos by the seesaw mechanism. Since active neutrinos as well as heavy neutral leptons are Majorana fermions in this case, the lepton number…

High Energy Physics - Phenomenology · Physics 2016-01-15 Takehiko Asaka , Takanao Tsuyuki

Inspired by the recent diboson excess observed at the LHC and possible interpretation within a TeV-scale Left-Right symmetric framework, we explore its implications for low-energy experiments searching for lepton number and flavor…

High Energy Physics - Phenomenology · Physics 2016-02-03 Ram Lal Awasthi , P. S. Bhupal Dev , Manimala Mitra

We review the recent developments in the field of nuclear double beta decay, which is presently an important topic in both nuclear and particle physics. The mechanism of lepton number violation within the neutrinoless double beta decay is…

High Energy Physics - Phenomenology · Physics 2008-11-26 Amand Faessler , Fedor Simkovic

We investigate the possibility of neutrinoless double beta decay ($0\nu\beta\beta$) and leptogenesis within the Alternative Left-Right Model (ALRM). Unlike the usual left-right symmetric model, ALRM features a Majorana right-handed neutrino…

High Energy Physics - Phenomenology · Physics 2020-10-20 Mariana Frank , Chayan Majumdar , P. Poulose , Supriya Senapati , Urjit A. Yajnik

We argue that large non-decoupling effects of heavy neutrinos can appear naturally in manifestly left-right symmetric models due to the minimization conditions of the scalar potential and the structure of vev's imposed by phenomenology. We…

High Energy Physics - Phenomenology · Physics 2009-10-28 G. Barenboim , M. Raidal

We analyze various contributions to neutrinoless double beta decay ($0\nu\beta\beta$) in a TeV-scale Left-Right Symmetric Model (LRSM) for type-I seesaw dominance. We find that the momentum-dependent effects due to $W_L-W_R$ exchange…

High Energy Physics - Phenomenology · Physics 2015-06-17 P. S. Bhupal Dev , Srubabati Goswami , Manimala Mitra

Various mechanisms may contribute to neutrinoless double beta decay in the left-right symmetric model. The interference between these mechanisms also contribute to the overall decay rate. The analysis of the contributions of these…

Nuclear Theory · Physics 2020-04-02 Fahim Ahmed , Mihai Horoi

In the context of TeV-scale lepton number violating (LNV) interactions, we illustrate the interplay between leptogenesis, neutrinoless double beta ($0\nu\beta\beta$) decay, and LNV searches at proton-proton colliders. Using a concrete model…

High Energy Physics - Phenomenology · Physics 2024-07-25 Julia Harz , Michael J. Ramsey-Musolf , Tianyang Shen , Sebastián Urrutia Quiroga

We analyze the lepton sector of a Left-Right Model based on the gauge group SU(2)_L x SU(2)_R x U(1), concentrating mainly on neutrino properties. Using the seesaw mechanism and a horizontal symmetry, we keep the right-handed symmetry…

High Energy Physics - Phenomenology · Physics 2009-11-11 Ken Kiers , Michael Assis , David Simons , Alexey A. Petrov , Amarjit Soni

We show that the proposed Large Hadron electron Collider (LHeC) will provide an opportunity to search for left-right symmetry and establish lepton number violation, complementing current and planned searches based on LHC data and…

High Energy Physics - Phenomenology · Physics 2016-11-03 Manfred Lindner , Farinaldo S. Queiroz , Werner Rodejohann , Carlos E. Yaguna

We examine lepton flavor violating (LFV) interactions for heavy right-handed neutrinos that exist in most of the standard model extensions that address dark matter (DM) and neutrino mass at the loop level. In order to probe the collider…

High Energy Physics - Phenomenology · Physics 2017-06-07 Meziane Chekkal , Amine Ahriche , Amine Bouziane Hammou , Salah Nasri

The role of $\beta$ decay as a low-energy probe of physics beyond the Standard Model is reviewed. Traditional searches for deviations from the Standard Model structure of the weak interaction in $\beta$ decay are discussed in the light of…

High Energy Physics - Phenomenology · Physics 2015-12-31 K. K. Vos , H. W. Wilschut , R. G. E. Timmermans

We investigate the impact of higher-dimensional operators on low-scale leptogenesis (LG) via oscillations of right-handed neutrinos within the neutrino-extended Standard Model Effective Field Theory ($\nu$SMEFT) and discuss the connection…

High Energy Physics - Phenomenology · Physics 2025-10-30 Kaori Fuyuto , Julia Harz , Sascha Weber

We present a detailed discussion on neutrinoless double beta decay $(0\nu \beta \beta)$ within left-right symmetric models based on the gauge symmetry of type $SU(2)_L \times SU(2)_R \times U(1)_{B-L}$ as well as $SU(3)_L \times SU(3)_R…

High Energy Physics - Phenomenology · Physics 2019-01-07 Debasish Borah , Arnab Dasgupta , Sudhanwa Patra

We consider the seesaw model with two right-handed neutrinos $N_1$ and $N_2$ which masses are hierarchical, and investigate their contribution to the neutrinoless double beta ($0 \nu \beta \beta$) decay. Although the lepton number is broken…

High Energy Physics - Phenomenology · Physics 2021-06-23 Takehiko Asaka , Hiroyuki Ishida , Kazuki Tanaka

We study the one-loop supersymmetric contributions to lepton-flavor violating $Z$ -boson decays in a fully left-right symmetric model. In addition to right-handed scalar neutrinos, the decays could receive important contributions from…

High Energy Physics - Phenomenology · Physics 2009-10-28 M. Frank , H. Hamidian

In the absence of supersymmetry, modular forms need not be holomorphic functions of the modulus $\tau$. Using this idea, we construct a non-supersymmetric framework using polyharmonic $Maa\beta$ forms. In this approach, the Yukawa coupling…

High Energy Physics - Phenomenology · Physics 2025-05-01 Bhabana Kumar , Mrinal Kumar Das

Neutrinoless double beta ($0\nu\beta\beta$) decay, an important low-energy process, serves not only as a potential test of the Majorana nature of neutrinos, but also as a sensitive probe for new physics beyond the Standard Model. In this…

High Energy Physics - Phenomenology · Physics 2025-10-10 Vivek Banerjee , Sasmita Mishra