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We present results of simulations of Two Color QCD using two flavors of Wilson quark in the fundamental representation, at non-zero quark chemical potential mu, on an 8^3x16 lattice. Results for the quark number density, quark and gluon…

High Energy Physics - Lattice · Physics 2007-05-23 Simon Hands , Seyong Kim , Jon-Ivar Skullerud

We show that QCD undergoes dimensional reduction at high temperatures also in the quark sector. In the kinematic region relevant to screening physics, where the lowest Matsubara modes are close to their ``mass-shells'', all static Green's…

High Energy Physics - Phenomenology · Physics 2011-01-04 Suzhou Huang , Marcello Lissia

We present a generalization of a model where the right-handed up-type quarks serve as messengers for neutrino mass generation and as a portal for dark matter. Within this framework the Standard Model is extended with a single Majorana…

High Energy Physics - Phenomenology · Physics 2014-11-26 John N. Ng , Alejandro de la Puente

The zero momentum sectors in effective theories of three dimensional QCD coupled to pseudoreal (two colors) and real (adjoint) quarks in a classically parity-invariant manner have alternative descriptions in terms of orthogonal and…

High Energy Physics - Theory · Physics 2016-09-06 T. Nagao , S. M. Nishigaki

The light quark masses are determined using a new QCD Finite Energy Sum Rule (FESR) in the pseudoscalar channel. This FESR involves an integration kernel designed to reduce considerably the contribution of the (unmeasured) hadronic…

High Energy Physics - Phenomenology · Physics 2009-05-12 C. A. Dominguez , N. F. Nasrallah , R. Röntsch K. Schilcher

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

When one tries to take into account the non-trivial vacuum structure of Quantum Field Theory, the standard functional-integral tools such as generating functionals or transitional amplitudes, are often quite inadequate for such purposes.…

High Energy Physics - Theory · Physics 2017-11-15 Massimo Blasone , Petr Jizba , Luca Smaldone

The quark sigma model describes the quarks interacting via exchange the pions and sigma meson fields. A new version of mesonic potential is suggested in the frame of some aspects of the quantum chromodynamics (QCD). The field equations have…

Nuclear Theory · Physics 2013-08-07 M. Abu-Shady

A Higgs description for the QCD vacuum in the limit of two quark flavors is proposed. Complete ``spontaneous breaking'' of color symmetry is realized by condensation of an adjoint quark-antiquark and a quark-quark pair. The vacuum is…

High Energy Physics - Phenomenology · Physics 2010-02-04 J. Berges , C. Wetterich

Assuming that the leptons and quarks other than top are massless at tree level, we show that their masses may be induced by loops involving the top quark. As a result, the generic features of the fermion mass spectrum arise from…

High Energy Physics - Phenomenology · Physics 2009-09-17 Bogdan A. Dobrescu , Patrick J. Fox

A vector-like extension of the standard model for heavier quarks and leptons with $SU(2)\times U(1)$ gauge symmetry and only one Higgs doublet is examined. This scheme incorporates infinitely many fermions and avoids the appearance of a…

High Energy Physics - Phenomenology · Physics 2017-02-01 Kazuo Fujikawa

We show that vector-like quarks in the fundamental or higher-dimensional representations of QCD can generate the electro-weak scale in a phenomenologically viable way by chiral symmetry breaking condensates. The thereby generated scales are…

High Energy Physics - Phenomenology · Physics 2023-04-19 Sophie Klett , Manfred Lindner , Andreas Trautner

In a functional approach to QCD the infrared behaviour of Landau gauge Green functions is investigated. It can be proven that the ghost Dyson-Schwinger equation implies the Gribov-Zwanziger horizon condition. Its relation to the Kugo-Ojima…

High Energy Physics - Phenomenology · Physics 2008-11-26 Reinhard Alkofer

High-energy unitarity is satisfied by adding a sextet quark doublet to QCD. The sextet sector produces electroweak symmetry breaking and is predicted to give large cross-section effects at the LHC. It embeds, uniquely, in a massless SU(5)…

High Energy Physics - Phenomenology · Physics 2007-05-23 Alan R. White

We investigate a proposal to address several outstanding shortcomings of the perturbative Standard Model (SM) of particle physics. The appeal of this proposal is that these features are a manifestation of the non-perturbative sector of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. D. Bashford

We render a thorough, physicist's account of the formulation of the Standard Model (SM) of particle physics within the framework of noncommutative differential geometry (NCG). We work in Minkowski spacetime rather than in Euclidean space.…

High Energy Physics - Theory · Physics 2008-11-26 C. P. Martin , Jose M. Gracia-Bondia , Joseph C. Varilly

The low energy Gell-Mann-Oakes-Renner relation, Higgs particle mass value, and the new observational cosmological data are considered as evidence of the condensate mechanism of conformal symmetry breaking at the quantum level. The…

High Energy Physics - Phenomenology · Physics 2012-11-20 V. Pervushin , A. Arbuzov , B. Barbashov , A. Cherny , A. Dorokhov , A. Borowiec , R. Nazmitdinov , A. Pavlov , V. Shilin , A. Zakharov

We present a supersymmetric extension of the Standard Model in which only one electroweak doublet acquires a vacuum expectation value and gives mass to Standard Model fermions. As well as the novel accommodation of a Standard Model Higgs…

High Energy Physics - Phenomenology · Physics 2011-04-28 Rhys Davies , John March-Russell , Matthew McCullough

Using the interquark potential we obtain a formula for the mass spectrum of elementary particles. The simple formula gives the masses of all known elementary particles with an error of about three percent or less. This includes the recently…

General Physics · Physics 2007-05-23 B. G. Sidharth

We present a novel extension of the Standard Model which fulfills the multiple-point principle without contradicting the Higgs particle mass measurement. In the model, the scalar potential has two minima where the scalar field has vacuum…

High Energy Physics - Phenomenology · Physics 2017-06-21 Naoyuki Haba , Toshifumi Yamada