Zobrazeno 1 - 10
of 176
pro vyhledávání: '"Naoyuki Haba"'
Autor:
Naoyuki Haba, Toshifumi Yamada
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-27 (2023)
Abstract The SUSY SO(10) GUT is in severe tension with the experimental bounds on proton partial lifetimes because proton decay mediated by colored Higgsinos (dimension-five proton decay) is too rapid. In this paper, we pursue the possibility that a
Externí odkaz:
https://doaj.org/article/bff1e474915a43e4a7e8bac3de6f3d89
Autor:
Naoyuki Haba, Toshifumi Yamada
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-19 (2022)
Abstract We study colored Higgsino-mediated proton decay (dimension-five proton decay) in a model based on the flipped SU(5) GUT. In the model, the GUT-breaking 10, 10 ¯ $$ \overline{\mathbf{10}} $$ fields have a GUT-scale mass term and gain VEVs th
Externí odkaz:
https://doaj.org/article/cb9dc0042c8e4a458ccc18dbe264fa90
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 7, Pp 1-14 (2019)
Abstract In the minimal SUSY SU(5) GUT with O(1) TeV SUSY particles and O(1) or below self-coupling for the GUT-breaking Higgs field, the width of the dimension-6 proton decay is suppressed below the reach of Hyper-Kamiokande. In this paper, we point
Externí odkaz:
https://doaj.org/article/89bf7890fce14e7b8176d98c1c0bb7cd
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 10, Pp 1-18 (2018)
Abstract Since the standard model contribution is virtually absent, any observation of direct CP violation in the Cabibbo-favored charmed meson decays would be evidence of new physics. In this paper, we conduct a quantitative study on direct CP viola
Externí odkaz:
https://doaj.org/article/504995ea11fd4b7d804b77eb6f38e520
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 5, Pp 1-29 (2018)
Abstract The Standard Model prediction for ϵ ′/ϵ based on recent lattice QCD results exhibits a tension with the experimental data. We solve this tension through W R + gauge boson exchange in the SU(2) L × SU(2) R × U(1) B−L model with ‘cha
Externí odkaz:
https://doaj.org/article/886d9c33fe3f430fa9528fb969740092
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 12, Pp 1-23 (2017)
Abstract We study the discovery potential for the mixing of heavy isospin-singlet neutrinos in extensions of the Tokai-to-Kamioka (T2K) experiment, the Tokai-to-Hyper-Kamiokande (T2HK), the Tokai-to-Hyper-Kamiokande-to-Korea (T2HKK) with a Korea dete
Externí odkaz:
https://doaj.org/article/7bd2398ae6aa4f51b5f9ced75f5bfde9
Publikováno v:
Physics Letters B, Vol 755, Iss , Pp 439-443 (2016)
We propose a new dynamics of the electroweak symmetry breaking in a classically scale invariant version of the standard model. The scale invariance is broken by the condensations of additional fermions under a strong coupling dynamics. The electrowea
Externí odkaz:
https://doaj.org/article/79bae542ea25465285d11f0e71f9d835
Publikováno v:
Physics Letters B, Vol 754, Iss C, Pp 349-352 (2016)
We suggest the so-called bosonic seesaw mechanism in the context of a classically conformal U(1)B−L extension of the Standard Model with two Higgs doublet fields. The U(1)B−L symmetry is radiatively broken via the Coleman–Weinberg mechanism, wh
Externí odkaz:
https://doaj.org/article/ef9cc8905a434bc6b36b41516020e583
Publikováno v:
Nuclear Physics B, Vol 900, Iss C, Pp 244-258 (2015)
From the point of view of the gauge hierarchy problem, introducing an intermediate scale in addition to TeV scale and the Planck scale (MPl=2.4×1018 GeV) is unfavorable. In that way, a gauge coupling unification (GCU) is expected to be realized at M
Externí odkaz:
https://doaj.org/article/514bfe337ad14b52a21b6e234b983693
Publikováno v:
Physics Letters B, Vol 743, Iss , Pp 35-38 (2015)
We suggest a new model of 7 keV right-handed neutrino dark matter inspired by a recent observation of 3.5 keV X-ray line signal in the XMM-Newton observatory. It is difficult to derive the tiny masses with a suitable left–right mixing of the neutri
Externí odkaz:
https://doaj.org/article/b4aad2b1691f4f82bfb8c8f2ebd2e6e8