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相关论文: A Radiative Neutrino Model with $SU(2)_L$ Triplet …

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We propose a two-loop induced neutrino mass model, in which we show some bench mark points to satisfy the observed neutrino oscillation, the constraints of lepton flavor violations, and the relic density in the co-annihilation system…

高能物理 - 唯象学 · 物理学 2016-01-20 Hiroshi Okada , Yuta Orikasa

We study a one-loop induced neutrino mass model with an inert isospin triplet scalar field of $Y=0$ and heavier isospin doublet vector-like leptons and singlet Majorana right-handed fermions. In addition to the neutrino mass matrix, We…

高能物理 - 唯象学 · 物理学 2024-09-18 Shilpa Jangid , Keiko I. Nagao , Hiroshi Okada

We study a neutrino model introducing an additional nontrivial gauged lepton symmetry where the neutrino masses are induced at two-loop level while the first and second charged-leptons of the standard model are done at one-loop level. As a…

高能物理 - 唯象学 · 物理学 2018-04-04 Takaaki Nomura , Hiroshi Okada

We study a one-loop induced radiative neutrino model with an inert isospin triplet scalar field, in which we discuss current neutrino oscillation data, lepton flavor violations, muon anomalous magnetic moment, and a dark matter candidate.…

高能物理 - 唯象学 · 物理学 2016-09-30 Hiroshi Okada , Yuta Orikasa

We propose a new type of radiative neutrino model with global hidden $U(1)$ symmetry, in which neutrino masses are induced at the four loop level. Then we discuss the muon anomalous magnetic moment to solve the discrepancy between…

高能物理 - 唯象学 · 物理学 2017-05-17 Takaaki Nomura , Hiroshi Okada

We propose a radiatively-induced neutrino mass model at one-loop level by introducing a pair of doubly-charged fermions and a few multi-charged bosons. We investigate the contributions of the model to neutrino masses, lepton-flavor…

高能物理 - 唯象学 · 物理学 2017-11-22 Kingman Cheung , Hiroshi Okada

We study a three loop induced neutrino mass model with exotic vector-like isospin doublet leptons which contain a dark matter candidate. Then we explore lepton flavor violations, and dark matter physics in co-annihilation system. In this…

高能物理 - 唯象学 · 物理学 2016-06-22 Takaaki Nomura , Hiroshi Okada , Yuta Orikasa

We propose a model with radiatively induced neutrino mass at two-loop level, applying modular $A_4$ symmetry. The neutrino mass matrix is formulated where the structure of associated couplings are restricted by the symmetry. Then we show…

高能物理 - 唯象学 · 物理学 2021-03-09 Takaaki Nomura , Hiroshi Okada

We study a three-loop induced neutrino mass scenario from a non-holomorphic modular $A_4$ flavor symmetry and reach the minimum scenario leading predictions of the lepton masses, mixing angles, and Dirac and Majorana phases, which are shown…

高能物理 - 唯象学 · 物理学 2025-12-04 Takaaki Nomura , Hiroshi Okada

We propose a three-loop neutrino mass model with a few leptoquark scalars in $SU(2)_L$-triplet form, through which we can explain the anomaly of $B \to K^{(*)} \mu^+ \mu^-$, a sizable muon $g-2$ and a bosonic dark matter candidate, and at…

高能物理 - 唯象学 · 物理学 2017-03-22 Kingman Cheung , Takaaki Nomura , Hiroshi Okada

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…

高能物理 - 唯象学 · 物理学 2018-04-04 Arindam Das , Takaaki Nomura , Hiroshi Okada , Sourov Roy

We propose a one-loop induced radiative neutrino mass model with anomaly free flavour dependent gauge symmetry: $\mu$ minus $\tau$ symmetry $U(1)_{\mu-\tau}$. A neutrino mass matrix satisfying current experimental data can be obtained by…

高能物理 - 唯象学 · 物理学 2015-06-23 Seungwon Baek , Hiroshi Okada , Kei Yagyu

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…

高能物理 - 唯象学 · 物理学 2019-09-11 Takaaki Nomura , 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…

高能物理 - 唯象学 · 物理学 2017-03-08 Takaaki Nomura , Hiroshi Okada , Yuta Orikasa

The beyond-the-standard-model scenario in this work is motivated from the observations of neutrino masses, anomalous magnetic moments of electron and muon, and dark matter in the Universe. We explain these observations by extending the…

高能物理 - 唯象学 · 物理学 2026-05-11 Vandana Sahdev

We propose an extension of the standard model introducing large $SU(2)_L$ multiplet fields which are quartet and septet scalars and quintet Majorana fermions. These multiplets can induce the neutrino masses via interactions with the $SU(2)$…

高能物理 - 唯象学 · 物理学 2017-11-22 Takaaki Nomura , Hiroshi Okada

We propose a radiative seesaw model at the three-loop level, in which quarks, leptons, leptoquark bosons, and a Majorana fermion of dark matter candidate are involved in the neutrino loop. Analyzing neutrino oscillation data including all…

高能物理 - 唯象学 · 物理学 2016-09-28 Takaaki Nomura , Hiroshi Okada , Nobuchika Okada

We propose a new type of radiatively induced neutrino masses at three-loop level based on the Ma model, introducing a non-invertible symmetry in the class under a ${\mathbb Z_2}$ gauging of ${\mathbb Z_6}$ symmetry and adding three isospin…

高能物理 - 唯象学 · 物理学 2025-07-23 Hiroshi Okada , Yoshihiro Shigekami

We propose a model of neutrino mass matrix with large $SU(2)$ multiplets and gauged $U(1)_{L_\mu - L_\tau}$ symmetry, in which we introduce $SU(2)$ quartet scalar and quintet fermions with nonzero $L_\mu - L_\tau$ charge. Then we…

高能物理 - 唯象学 · 物理学 2018-07-18 Takaaki Nomura , Hiroshi Okada

We propose two models based on the $SU(3)_C \times SU(3)_L \times U(1)_X$ gauge symmetry, each incorporating distinct inverse seesaw mechanisms for generating neutrino masses at the radiative level. Therefore, neutrino masses are suppressed…

高能物理 - 唯象学 · 物理学 2024-10-30 V. H. Binh , Cesar Bonilla , A. E. Cárcamo Hernández , D. T. Huong , Vishnudath K. N. , H. N. Long , P. N. Thu , Iván Schmidt
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