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The masses, pseudoscalar and vector weak decay constants and electromagnetic form factors of light S-wave mesons are studied in the framework of the relativistic quark model based on the quasipotential approach. We use the same model…

High Energy Physics - Phenomenology · Physics 2009-01-07 D. Ebert , R. N. Faustov , V. O. Galkin

Recent results from studies using half the perturbative mass of heavy quark-antiquark n=1, ${}^3S_1$ quarkonium as a new heavy quark mass definition for problems where the characteristic scale is smaller than or of the same order as the…

High Energy Physics - Phenomenology · Physics 2011-01-25 A. H. Hoang

There are two mass generating mechanisms in the standard model of particle physics (SM). One is related to the Higgs boson and fairly well understood. The other is embedded in quantum chromodynamics (QCD), the SM's strong interaction piece;…

High Energy Physics - Phenomenology · Physics 2021-07-28 Craig D. Roberts , David G. Richards , Tanja Horn , Lei Chang

Hadron masses can be decomposed as a sum of quark and glue components which are defined through hadronic matrix elements of QCD operators. The components consist of the quark mass term, the quark energy term, the glue energy term, and the…

High Energy Physics - Phenomenology · Physics 2015-05-06 Yi-Bo Yang , Ying Chen , Terrence Draper , Ming Gong , Keh-Fei Liu , Zhaofeng Liu , Jian-Ping Ma

This closer study of the FSM: [I] retains the earlier results in offering explanation for the existence of three fermion generations, as well as the hierarchical mass and mixing patterns of leptons and quarks; [II] predicts a vector boson…

High Energy Physics - Phenomenology · Physics 2018-12-26 Jose Bordes , H. M. Chan , S. T. Tsou

We describe a measurement of the top quark mass from events produced in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV, using the Collider Detector at Fermilab. We identify top-antitop candidates where both W bosons…

High Energy Physics - Experiment · Physics 2010-05-12 A. Abulencia

Building an organized Yukawa structure of quarks and leptons is an essential mission to understand fermion mass hierarchy and flavor mixing in particle physics. Inspired by the similarity of CKM and PMNS mixings, a common mass pattern for…

High Energy Physics - Phenomenology · Physics 2023-11-16 Ying Zhang

We demonstrate that fermion masses in the Standard Model (SM) can be constrained by the dispersion relations obeyed by hadronic and semileptonic decay widths of a fictitious heavy quark $Q$ with an arbitrary mass. These relations, imposing…

High Energy Physics - Phenomenology · Physics 2023-05-17 Hsiang-nan Li

We study the general dependence of mixing angles on heavy fermion masses when mass hierarchies exist among the fermions. For two generations and small Cabibbo angle, this angle is directly shown to scale like $\mu_1/m_s \pm \mu_2/m_c$,…

High Energy Physics - Phenomenology · Physics 2014-11-17 B. Machet , S. T. Petcov

We propose an extension of the 3-3-1 model with an additional symmetry group $Z_{2}\times Z_{4} \times U(1)_{L_g}$ and an extended scalar sector. To our best knowledge this is the first example of a renormalizable 3-3-1 model, which allows…

High Energy Physics - Phenomenology · Physics 2018-10-01 A. E. Cárcamo Hernández , Sergey Kovalenko , H. N. Long , Ivan Schmidt

Despite the enormous achievements, the Standard model of Particle physics can not be consider as complete theory of fundamental interactions. Among other things, it can not describe the gravitational interaction and it depends on 19…

High Energy Physics - Phenomenology · Physics 2015-02-02 Branislav Sazdovic

We describe the Anti-Grand Unification Model (AGUT) and the Multiple Point Principle (MPP) used to calculate the values of the Standard Model gauge coupling constants in the theory, from the requirement of the existence of degenerate vacua.…

High Energy Physics - Phenomenology · Physics 2007-05-23 C. D. Froggatt , M. Gibson , H. B. Nielsen , D. J. Smith

As an attempt to give an unified description of quark and lepton mass matrices M_f, the following mass matrix form is proposed: the form of the mass matrices are invariant under a cyclic permutation (f_1 \to f_2, f_2 \to f_3, f_3 \to f_1)…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yoshio Koide

We apply a universal two-zero texture (UTZT) to all mass matrices for matters in their flavour space in SO(10) GUT framework. This texture can be realised by assigning different charge for each family in a $Z_6$ symmetry. By fixing charged…

High Energy Physics - Phenomenology · Physics 2025-08-04 Gao-Xiang Fang , Ye-Ling Zhou

We discuss a supersymmetric unified model based on a product gauge group SU(5)\times SU(5)\times SU(5), where the gauge symmetry breaking is achieved without the adjoint or higher-dimensional Higgs field, and the doublet-triplet splitting…

High Energy Physics - Phenomenology · Physics 2007-05-23 Takehiko Asaka , Y. Takanishi

We have investigated a flavour model [1] which inspired by small squared-mass difference measured in solar neutrino oscillation experiments and observability in neutrinoless double beta decay experiments. In our model, the $1^{\rm st.}$ and…

High Energy Physics - Phenomenology · Physics 2017-08-23 Hiroyuki Ishida

A quark mass matrix model $M_q=M_e^{1/2} O_q M_e^{1/2} $ is proposed where $M_e^{1/2}={\rm diag}(\sqrt{m_e},\sqrt{m_\mu},\sqrt{m_\tau})$ and $O_q$ is a unit matrix plus a rank one matrix. Up- and down-quark mass matrices $M_u$ and $M_d$ are…

High Energy Physics - Phenomenology · Physics 2010-11-01 H. Fusaoka , Y. Koide

The application of fermion-boson symmetry to the standard model leads to the following: first, there are three generations of scalar quarks and scalar leptons in addition to the known quarks and leptons, and, secondly, the divergences in…

General Physics · Physics 2018-12-06 Sau Lan Wu , Tai Tsun Wu , Chen Zhou

Based on the experimental data and estimations of the charged leptons and quarks masses, a close power law with exponent 3/4 has been found, connecting charged leptons masses and up quarks masses. A similar mass relation has been suggested…

General Physics · Physics 2010-04-13 Dimitar Valev

The mass differences in all neutral pseudo scalar mesons and CP violations associated with the mixings are investigated in the context of the fermion- boson-type subquark model. These phenomena are unifyingly explained by the neutral scalar…

High Energy Physics - Phenomenology · Physics 2007-05-23 T. Matsushima
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