中文
相关论文

相关论文: CP violating lepton asymmetries in Left-Right Mode…

200 篇论文

We discuss a simple model of lepton mixing and CP violation based on the flavor democracy of charge leptons and the mass degeneracy of neutrinos. A nearly bi-maximal flavor mixing pattern, which is favored by current data on atmospheric and…

高能物理 - 唯象学 · 物理学 2007-05-23 Harald Fritzsch , Zhi-zhong Xing

Flavour models may display a relation between the CP-violating asymmetry for leptogenesis and low-energy parameters. If the flavour symmetry produces an exact mass independent lepton mixing scheme at leading order (with type I see-saw) the…

高能物理 - 唯象学 · 物理学 2015-05-27 Ivo de Medeiros Varzielas

We discuss leptonic mixing and CP violation at low and high energies, emphasizing possible connections between leptogenesis and CP violation at low energies, in the context of lepton flavour models. Furthermore we analyse weak basis…

高能物理 - 唯象学 · 物理学 2009-11-10 Gustavo C. Branco , M. N. Rebelo

We investigate lepton flavour violation in a class of minimal left-right symmetric models where the left-right symmetry is broken by triplet scalars. In this context we present a method to consistently calculate the triplet-Yukawa couplings…

高能物理 - 唯象学 · 物理学 2017-03-09 Cesar Bonilla , Manuel E. Krauss , Toby Opferkuch , Werner Porod

The CMS collaboration has reported a possible lepton flavour violating (LFV) signal $h\to\mu\tau$. Whereas this does not happen in the standard model (SM), we point out that new physics responsible for this type of decay would, in general,…

高能物理 - 唯象学 · 物理学 2016-08-03 Alper Hayreter , Xiao-Gang He , German Valencia

Most extensions of the Standard Model lepton sector predict large lepton flavor violating rates. Given the promising experimental perspectives for lepton flavor violation in the next few years, this generic expectation might offer a…

高能物理 - 唯象学 · 物理学 2015-04-17 Avelino Vicente

We discuss several manifestations of charged lepton flavour violation at high energies. Focusing on a supersymmetric type I seesaw, considering constrained and semi-constrained supersymmetry breaking scenarios, we analyse different…

高能物理 - 唯象学 · 物理学 2015-03-03 A. M. Teixeira , A. Abada , A. J. R. Figueiredo , J. C. Romao

Isosinglet fermions naturally arise in a variety of extensions of the Standard Model, in particular in models with extra dimensions. In this paper, we study the effect of the addition of a new isosinglet charged lepton to the standard…

高能物理 - 唯象学 · 物理学 2014-11-17 G. C. Branco , D. Delepine , B. Nobre , J. Santiago

These proceedings introduce the main techniques and ideas for a systematic effective field theory analysis of CP violation in the charged lepton sector. This study is required because the Standard Model of particle physics predicts a very…

高能物理 - 唯象学 · 物理学 2022-09-21 Giovanni Marco Pruna

We calculate the possible CP violating asymmetries for LFV decays mu -> e gamma and tau -> mu gamma. Our predictions depend on the chosen new model independent contribution. The result of measurements of such asymmetries for these decays…

高能物理 - 唯象学 · 物理学 2014-11-17 E. O. Iltan

While the Standard Model remains the prevailing description of natural phenomena, several observed phenomena continue to elude its explanation. To address these challenges, we investigate the Minimal Left-Right Symmetric Model, an immediate…

高能物理 - 唯象学 · 物理学 2023-12-06 Rafid Buksh , Samim Ul Islam

We readdress the issue of strong CP violation both in the Standard Model and in the Minimal Left-Right Symmetric Model and try to clear the confusion that seems to still pervade the field. We argue that the smallness of strong CP violation,…

高能物理 - 唯象学 · 物理学 2020-06-15 Goran Senjanovic , Vladimir Tello

We suggest the use of a universality-breaking observable based on lepton asymmetries as derived from the left-right asymmetry and the $\tau$ polarization at the $Z$ peak, which can efficiently constrain the parameter space of unified…

高能物理 - 唯象学 · 物理学 2016-09-01 J. Bernabe'u , A. Pilaftsis

I discuss charged lepton-flavor violation in physics beyond the standard model and review topics related to it.

高能物理 - 唯象学 · 物理学 2009-09-29 Junji Hisano

Working within the context of the minimal supersymmetric standard model, we compare current bounds from quark flavor changing processes with current and upcoming bounds on lepton flavor violation. We assume supersymmetry breaking…

高能物理 - 唯象学 · 物理学 2018-03-07 Sebastian A. R. Ellis , Aaron Pierce

We propose a phenomenological model of lepton mixing and CP violation based on the flavor democracy of charge leptons and the mass degeneracy of neutrinos. A nearly bi-maximal flavor mixing pattern, which is favored by current data on…

高能物理 - 唯象学 · 物理学 2009-10-31 Harald Fritzsch , Zhi-zhong Xing

The goal of this article is to outline the advantages of the measurement of left-right asymmetries in lepton-lepton ($l^{-}l^{-}\to l^{-}l^{-}$) scattering for performing precision measurements of $\sin^2 \theta_W$ and the discovery of…

高能物理 - 唯象学 · 物理学 2007-05-23 J. C. Montero , V. Pleitez , M. C. Rodriguez

We study the phenomenology of a supersymmetric left-right model, assuming minimal supergravity boundary conditions. Both left-right and (B-L) symmetries are broken at an energy scale close to, but significantly below the GUT scale. Neutrino…

高能物理 - 唯象学 · 物理学 2011-01-27 J. N. Esteves , M. Hirsch , W. Porod , J. C. Romao , F. Staub , A. Vicente

We shortly review and emphasize how l_j -> l_i gamma experiments and the searches for lepton e.d.m. are constraining New Physics model building. They are pure signals of new phenomena around the TeV scale since the SM contributions are…

高能物理 - 唯象学 · 物理学 2008-11-26 I. Masina , C. A. Savoy

CP violation in B decays provides a powerful tool to probe physics from beyond the Standard Model. A theoretical overview of recent developments of benchmark channels is given, ranging from non-leptonic to rare leptonic and semileptonic…

高能物理 - 唯象学 · 物理学 2024-02-02 Robert Fleischer