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QCD in a five-dimensional sliced bulk with chiral extra-quarks on the boundaries is generically free from the strong CP problem. Accidental axial symmetry is naturally present except for suppressed breaking interactions, which plays a role…

High Energy Physics - Phenomenology · Physics 2009-11-07 K. -I. Izawa , T. Watari , T. Yanagida

The theory of strong interactions, QCD, is described in terms of a few parameters, namely the strong coupling constant alpha_s and the quark masses. We show how these parameters can be determined reliably using computer simulations of QCD…

Computational Physics · Physics 2007-05-23 Rainer Sommer , Hartmut Wittig

High massive compact stars have been reported recently in the literature, providing strong constraints on the properties of the ultradense matter beyond the saturation nuclear density. In view of these results, the calculations of quark…

High Energy Astrophysical Phenomena · Physics 2014-07-18 Hilario Rodrigues , Sergio B. Duarte , Jos Carlos T. de Oliveira

We study a six matrix model with global $SO(3)\times SO(3)$ symmetry containing at most quartic powers of the matrices. This theory exhibits a phase transition from a geometrical phase at low temperature to a Yang-Mills matrix phase with no…

High Energy Physics - Theory · Physics 2016-10-26 Badis Ydri , Ramda Khaled , Rouag Ahlam

In the contact interaction model, the quark propagator has only one solution, chiral symmetry breaking solution, at vanish temperature and density. Inspire by Y. Jiang and Z.-F. Cui, we introduce 2+1 flavors quark condensates feedback on…

High Energy Physics - Phenomenology · Physics 2021-10-15 Shu-Sheng Xu

We discuss a new general class of mass matrix ansatz that respects the fermion mass hierarchy and calculability of the flavor mixing matrix. This is a generalization of the various specific forms of the mass matrix that is obtained by…

High Energy Physics - Phenomenology · Physics 2007-05-23 Kyungsik Kang , Sin Kyu Kang

In many extensions of the SM, neutral massive stable particles (dark matter candidates) are produced at colliders in pairs due to an exact symmetry called a "parity". These particles escape detection, rendering their mass measurement…

High Energy Physics - Phenomenology · Physics 2014-11-20 Tao Han , Ian-Woo Kim , Jeonghyeon Song

The recently proposed model of neutrino mass with no new physics beyond the TeV energy scale is shown to admit a natural and realistic supersymmetric realization, when combined with another recently proposed model of quark masses in the…

High Energy Physics - Phenomenology · Physics 2009-11-07 Ernest Ma

We investigate what could be learned about the absolute scale of neutrino masses from comparisons among the patterns within quark and lepton mass hierarchies. First, we observe that the existing information on neutrino masses fits quite…

High Energy Physics - Phenomenology · Physics 2009-11-07 Manfred Lindner , Walter Winter

We analyze the possibility of the leptonic mixing matrix having a Wolfenstein form at the Grand Unified Theory scale. The renormalization group evolution of masses and mixing angles from the high scale to electroweak scale, in certain new…

High Energy Physics - Phenomenology · Physics 2024-03-27 Ankur Panchal , G. Rajasekaran , Rahul Srivastava

We calculate the dynamically generated up quark mass in some QCD-like theories with $F=3$ light flavors, obtained from supersymmetric QCD perturbed via anomaly mediated supersymmetry breaking. We match the low-energy effective theory to the…

High Energy Physics - Phenomenology · Physics 2025-05-14 Csaba Csáki , Tuhin S. Roy , Maximilian Ruhdorfer , Taewook Youn

The realization of topological states of matter in ultracold atomic gases is currently the subject of intense experimental activity. Using a synthetic dimension, encoded in a non-spatial degree of freedom, can greatly simplify the…

Quantum Gases · Physics 2023-12-14 Aurélien Fabre , Sylvain Nascimbene

With the accumulation of many years of solar and atmospheric neutrino oscillation data, the approximate form of the 3 times 3 neutrino mixing matrix is now known. What is not known is the (presumably Majorana) neutrino mass matrix M_{nu}…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ernest Ma

In this note we show an empirical formula of quark masses, which is found by implementing a least squares fit. In this formula the measured QCD coupling is almost a "best fitting coupling".

High Energy Physics - Phenomenology · Physics 2008-11-26 Da Qing Liu , Ji Ming Wu

We motivate the simplest ansatz for the neutrino mass matrix consistent with the data from neutrino oscillation experiments, and admitting CP violation. It has only two free parameters: an arbitrary mass-scale and a small dimensionless…

High Energy Physics - Phenomenology · Physics 2010-04-05 P. F. Harrison , W. G. Scott

In the present contribution the construction of particle physics models in theories with fuzzy extra dimensions is discussed. We focus on a bottom-up approach where the structure of a higher-dimensional theory arises within ordinary…

High Energy Physics - Theory · Physics 2011-05-18 Athanasios Chatzistavrakidis , Harold Steinacker , George Zoupanos

An unexpected explanation for neutrino mass, Dark Matter (DM) and Dark Energy (DE) from genuine Quantum Chromodynamics (QCD) of the Standard Model (SM) is proposed here, while the strong CP problem is resolved without any need to account…

High Energy Physics - Phenomenology · Physics 2021-10-12 Andrea Addazi , Antonino Marciano , Roman Pasechnik , Kaiqiang Alan Zeng

Properties of hybrid stars with a mixed phase composed of asymmetric nuclear matter and strange quark matter are studied. The quark phase is investigated by the quark quasiparticle model with a self-consistent thermodynamic and statistical…

Nuclear Theory · Physics 2013-05-31 Xin-Jian Wen

The phenomenology of most general quark mass matrices with minimum of three texture zeros obtained through weak basis (WB) transformations has been discussed within the framework of the standard Model (SM). The relationship of textures,…

High Energy Physics - Phenomenology · Physics 2013-12-02 Rohit Verma

We construct quark mixing matrices within a group theoretic framework which is easily applicable to any number of generations. Familiar cases are retrieved and related, and it is hoped that our viewpoint may have advantages both…

High Energy Physics - Phenomenology · Physics 2019-08-17 K. J. Barnes , O. J. Senior , N. D. Virgo
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