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The radiative seesaw model with gauged $\mathrm{U(1)}_{B-L}\times\mathbb{Z}_2$ extension is a well-motivated scenario which gives consistent predictions of active neutrino masses and the abundance of dark matter. Majorana masses of…

High Energy Physics - Phenomenology · Physics 2024-10-31 Shinya Kanemura , Yushi Mura , Guohao Ying

We propose a predictive radiative seesaw model at one-loop level with a flavor dependent gauge symmetry $U(1)_{xB_3-xe-\mu+\tau}$ and Majorana fermion dark matter. For the neutrino mass matrix, we obtain an $A_1$ type texture (with two…

High Energy Physics - Phenomenology · Physics 2017-08-23 P. Ko , Takaaki Nomura , Hiroshi Okada

We propose a neutrino model in which neutrino masses are generated at one loop level and three right-handed fermions have non-trivial charges under $U(1)_{B-L}$ gauge symmetry in no conflict with anomaly cancellation. After the…

High Energy Physics - Phenomenology · Physics 2019-03-06 Takaaki Nomura , Hiroshi Okada

We propose an extension of the standard model of quarks and leptons to include gauge $B-L$ symmetry with an exotic array of neutral fermion singlets for anomaly cancellation. With the addition of suitable scalars also transforming under…

High Energy Physics - Phenomenology · Physics 2016-09-21 Ernest Ma , Nicholas Pollard , Oleg Popov , Mohammadreza Zakeri

In this paper we propose a radiated linear seesaw model where the naturally small term $\mu_{L}$ are generated at one-loop level and its soft-breaking of lepton number symmetry attributes to the spontaneous breaking(SSB) of B-L gauge…

High Energy Physics - Phenomenology · Physics 2015-11-05 Weijian Wang , Zhi-Long Han

We propose a gauged $U(1)_{B-L}$ extension of the standard model (SM) to explain simultaneously the light neutrino masses and dark matter (DM). The generation of neutrino masses occurs through a variant of type-II seesaw mechanism in which…

High Energy Physics - Phenomenology · Physics 2020-02-18 Satyabrata Mahapatra , Nimmala Narendra , Narendra Sahu

We propose a model which generates neutrino masses by the inverse seesaw mechanism, provides a viable dark matter candidate and explains the muon ($g-2$) anomaly. The Standard Model (SM) gauge group is extended with a gauged U(1)$_{\rm…

High Energy Physics - Phenomenology · Physics 2018-08-20 Anirban Biswas , Sandhya Choubey , Sarif Khan

We investigate a model with local U(1)$_{B-L}$ and discrete $Z_2$ symmetries where two types of weak isospin singlet neutrinos, vector-like charged lepton and exotic scalar fields are introduced. The linear seesaw mechanism is induced at…

High Energy Physics - Phenomenology · Physics 2018-04-04 Arindam Das , Takaaki Nomura , Hiroshi Okada , Sourov Roy

In this paper, we propose a $G_{L-R}\times U(1)_{L_\mu-L_\tau}$ gauge-symmetric model where $G_{L-R}$ is the left-right gauge symmetry and $L_i$ is the $i-$flavor lepton number. We use the spontaneous breaking (SSB) of $U(1)_{L_\mu-L_\tau}$…

High Energy Physics - Phenomenology · Physics 2018-01-31 Abhish Dev

We study a radiative seesaw model at one-loop level with a flavor dependent gauge symmetry $U(1)_{\mu-\tau}$, in which we consider bosonic dark matter. We also analyze the constraints from lepton flavor violations, muon $g-2$, relic density…

High Energy Physics - Phenomenology · Physics 2018-05-09 SangJong Lee , Takaaki Nomura , Hiroshi Okada

We propose a new model where the Dirac mass term for neutrinos, the Majorana mass term for right-handed neutrinos, and the other new fermion masses arise via the spontaneous breakdown of the $U(1)_{B-L}$ gauge symmetry. The anomaly-free…

High Energy Physics - Phenomenology · Physics 2014-07-10 Shinya Kanemura , Toshinori Matsui , Hiroaki Sugiyama

We discuss a new radiative seesaw model with the gauged B$-$L symmetry which is spontaneously broken. We improve the previous model by using the anomaly-free condition without introducing too many fermions. In our model, dark matter, tiny…

High Energy Physics - Phenomenology · Physics 2015-06-01 Toshinori Matsui

We propose a predictively radiative neutrino mass model with gauged $U(1)_{B-2L_{\ell_2}-L_{\ell_1}}$ symmetry in which we successfully realize two-zero textures of neutrino mass matrix depending on charge assignment for leptons and the…

High Energy Physics - Phenomenology · Physics 2018-06-27 Takaaki Nomura , Hiroshi Okada

We establish a hybrid seesaw mechanism to explain small neutrino masses and predict cold dark matter candidate in the context of the B-L gauge symmetry extension of the Standard Model. In this model a new scalar doublet and two new fermion…

High Energy Physics - Phenomenology · Physics 2015-03-13 Tong Li , Wei Chao

We propose and study a novel extension of the Standard Model based on the B-L gauge symmetry that can account for dark matter and neutrino masses. In this model, right-handed neutrinos are absent and the gauge anomalies are canceled instead…

High Energy Physics - Phenomenology · Physics 2016-10-12 Sudhanwa Patra , Werner Rodejohann , Carlos E. Yaguna

We propose a radiative seesaw model at one-loop level, introducing fields with large multiplet of $SU(2)_L$. Thanks to large representations, any additional symmetries are not needed. In this framework, we formulate lepton and new fermion…

High Energy Physics - Phenomenology · Physics 2019-09-11 Takaaki Nomura , Hiroshi Okada

We propose a model with an $U(1)_{B-L}$ gauge symmetry, in which small neutrino masses, dark matter and the matter-antimatter asymmetry in the Universe can be simultaneously explained. In particular, the neutrino masses are generated…

High Energy Physics - Phenomenology · Physics 2018-02-19 Chao-Qiang Geng , Hiroshi Okada

We propose a radiative seesaw model in alternative left-right model without any bidoublet scalar fields, in which all the fermion masses in the standard model are generated through a canonical seesaw mechanism at the tree level. On the…

High Energy Physics - Phenomenology · Physics 2017-03-08 Takaaki Nomura , Hiroshi Okada , Yuta Orikasa

We study the neutrino sector in a minimal $SU(3)_L\times U(1)_X$ model, in which its mass is generated at one-loop level with the charged lepton mass, and hence there exists a strong correlation between the charged-lepton mass and the…

High Energy Physics - Phenomenology · Physics 2016-04-20 Hiroshi Okada , Nobuchika Okada , Yuta Orikasa

We propose a $B-L$ gauged extension of the Standard Model where light neutrino masses arise from type III seesaw mechanism. Unlike the minimal $B-L$ model with three right handed neutrinos having unit lepton number each, the model with…

High Energy Physics - Phenomenology · Physics 2020-03-24 Anirban Biswas , Debasish Borah , Dibyendu Nanda
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