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Related papers: A Phenomenological Formula for KM Matrix

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We propose a novel mechanism for reproducing the realistic hierarchical structure of the observed CKM mixing matrix and quark masses by means of introducing a warped metric. We illustrate the method on the basis of a specific Type IIA…

High Energy Physics - Phenomenology · Physics 2007-05-23 Tatsuya Noguchi

The starting point in this note is the charged-lepton mass formula successfully predicting the figure m_\tau = 1776.80 MeV for \tau-lepton mass versus its recent experimental value m_\tau = 1776.82 \pm 0.16 MeV. There, two experimental…

General Physics · Physics 2010-11-05 Wojciech Krolikowski

To address fermion mass hierarchy and flavor mixings in the quark and lepton sectors, a minimal flavor structure without any redundant parameters beyond phenomenological observables is proposed via decomposition of the Standard Model Yukawa…

High Energy Physics - Phenomenology · Physics 2022-01-17 Ying Zhang

We put forward the conjecture that the small numbers in the $V_\text{CKM}$ matrix, are generated by physics beyond the Standard Model. We identify as small numbers $V_{ub}$ and the strength of CP violation, measured by $|\text{Im}Q|$, where…

High Energy Physics - Phenomenology · Physics 2023-02-15 G. C. Branco , José Filipe Bastos , J. I. Silva-Marcos

In this article, the mass spectra of mesons with one or two heavy quarks and their diquarks partners are estimated within a non-relativistic framework by solving Schr\"odinger equation with an effective potential inspired by a symmetry…

High Energy Physics - Phenomenology · Physics 2021-08-31 L. X. Gutiérrez-Guerrero , A. Alfaro , A. Raya

We follow our previous paper on possible cosmological variation of weak scale (quark masses) and strong scale, inspired by data on cosmological variation of the electromagnetic fine structure constant from distant quasar (QSO) absorption…

High Energy Physics - Phenomenology · Physics 2016-09-06 V. V. Flambaum , E. V. Shuryak

We do a systematic analysis of the question of calculability of CKM matrix elements in terms of quark mass ratios, within the framework of the hypothesis of universality of strength for Yukawa couplings (USY), where all Yukawa couplings…

High Energy Physics - Phenomenology · Physics 2014-11-17 G. C. Branco , D. Emmanuel-Costa , J. I. Silva-Marcos

We develop for the CKM and PMNS matrices a new representation with special properties. It is obtained by splitting each of these matrices into two rotations by the angle ${\sim}2\pi/3$ and a universal diagonal matrix with elements, which…

High Energy Physics - Phenomenology · Physics 2024-01-31 Piotr Kielanowski , S. Rebeca Juárez Wysozka , Liliana Vázquez Mercado

The CKM matrix, V, relates the quark mass and flavor bases. In the standard model, V is unitary 3X3, and specified by four arbitrary parameters, including a phase allowing for $CP$ violation. We review the experimental determination of V,…

High Energy Physics - Experiment · Physics 2016-11-23 Frank C. Porter

A new ansatz for quark and lepton mass matrices is proposed in the context of supersymmetric grand unified theories. The 13 parameters describing fermion masses and mixings are determined in terms of only 6 free parameters, allowing 7…

High Energy Physics - Phenomenology · Physics 2010-11-01 Gian F. Giudice

We propose the relation $M_\Lambda \sim (M_{Pl} M_U)^{1/2}$ where $M_\Lambda$, $M_{Pl},$ and $M_U$ denote the mass scale associated with the cosmological constant, the gravitational interaction, and the size of the universe respectively.

High Energy Physics - Theory · Physics 2009-11-10 S. Hsu , A. Zee

Two down-up perspectives on quark mass-mixing relations are reviewed. The modified Fritzsch path relates $V_{cb}$ and $V_{ub}$ to $M_u$, but has trouble with the low $V_{cb} \simeq 0.04$ value. The modified Wolfenstein path focuses on the…

High Energy Physics - Phenomenology · Physics 2008-02-03 George Wei-Shu Hou

A method of calculations of meson mass spectra in the framework of the model of quasi-independent quarks is discussed. Meson mass spectra evaluated with the help of the Dirac equation with the quasi-Coulombic potential and the confinement…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. V. Khruschov

Stimulated by the phenomenological success of the universal seesaw mass matrix model, where the mass terms for quarks and leptons f_i (i=1,2,3) and hypothetical super-heavy fermions F_i are given by \bar{f}_L m_L F_R +\bar{F}_L m_R f_R +…

High Energy Physics - Phenomenology · Physics 2009-10-31 Yoshio Koide

Recent results from lattice QCD calculations relevant to particle physics phenomenology are reviewed. They include the calculations of strong coupling constant, quark masses, kaon matrix elements, and D and B meson matrix elements. Special…

High Energy Physics - Phenomenology · Physics 2009-11-10 Shoji Hashimoto

From only two elementary quarks ($\epsilon_{u}(0) $ and $\epsilon_{d}(0)) $ and the symmetries of the regular rhombic dodecahedron, using phenomenological formulae, we deduced the rest masses and the intrinsic quantum numbers (I, S, C, b…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jiao Lin Xu

The maximal CP violation hypothesis depends on the phase convention of the Cabibbo-Kobayashi-Maskawa matrix. A phase convention which leads to successful prediction under the maximal CP violation hypothesis is searched, and thereby,…

High Energy Physics - Phenomenology · Physics 2014-11-18 Yoshio Koide

In this paper we give a geometric parametrization to the Cabibbo-Kobayashi-Maskawa (CKM) mixing matrix and the Jarlskog invariant, which is based on two flag manifolds $SU(3)/U(1)^{2}$. To treat a fourth generation of quarks on CP violation…

Mathematical Physics · Physics 2010-01-07 Kazuyuki Fujii

For the determination of the Cabbibo-Kobayashi-Maskawa matrix element $|V_{cb}|$ from inclusive data a precise knowledge of the semileptonic $b \to c$ decay rate is necessary. Since this observable has a bad convergence behavior when the…

High Energy Physics - Phenomenology · Physics 2022-04-01 Kay Schönwald

Based on the hierarchy exhibited by quarks masses at low energies, we assume that Yukawa couplings of up and down quarks are related by $Y_u\propto Y_d^2$ at grand unification scales. This ansatz gives rise to a symmetrical CKM matrix at…

High Energy Physics - Phenomenology · Physics 2008-11-26 H. González , S. R. Juárez W. , P. Kielanowski , G. López Castro
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