English
Related papers

Related papers: Comment on "Charged vector mesons in a strong magn…

200 papers

We discuss magnetic pressure and density fluctuations in strongly turbulent isothermal MHD flows in "1+2/3" dimensions. We first consider "simple" nonlinear MHD waves, which allow us show that the slow and fast modes have different…

Astrophysics · Physics 2007-05-23 Thierry Passot , Enrique Vazquez-Semadeni

We analyze mesons in constant magnetic fields ($B$) within a non-relativistic constituent quark model. Our quark model contains a harmonic oscillator type confining potential, and we perturbatively treat short range correlations to account…

High Energy Physics - Phenomenology · Physics 2021-11-03 Toru Kojo

Electromagnetic interactions are introduced in the effective chiral Lagrangian for heavy mesons which includes light vector particles. A suitable notion of vector meson dominance is formulated. The constraints on the heavy meson -light…

High Energy Physics - Phenomenology · Physics 2014-11-17 Pankaj Jain , Arshad Momen , Joseph Schechter

Unusual constituent quark axial current couplings to light vector mesons, $\rho$ and $\omega$, are derived in the vacuum and under weak magnetic field by considering a quark-antiquark interaction mediated by a non perturbative gluon…

High Energy Physics - Phenomenology · Physics 2022-03-23 F. L. Braghin

Hadron masses under strong magnetic fields are studied. In the presence of strong magnetic fields exceeding the QCD energy scale $ eB \gg \Lambda^2_{\rm QCD} $, ${\rm SU(3)}_{\rm flavor} \otimes {\rm SU(2)}_{\rm spin}$ symmetry of hadrons…

High Energy Physics - Phenomenology · Physics 2015-08-04 Hidetoshi Taya

Using an extended Nambu--Jona-Lasinio model as a low--energy effective model of QCD, we show that the vacuum in a strong external magnetic field (stronger than 10^{16} Tesla) experiences a spontaneous phase transition to an…

High Energy Physics - Phenomenology · Physics 2011-04-20 M. N. Chernodub

In this talk we discuss our recent suggestion that the QCD vacuum in a sufficiently strong magnetic field (stronger than 10^{16} Tesla) may undergo a spontaneous transition to an electromagnetically superconducting state. The possible…

High Energy Physics - Phenomenology · Physics 2011-06-15 M. N. Chernodub

Two model-independent results on the momentum-dependence of $\rho$-$\omega$ mixing are described. First, an explicit choice of interpolating fields for the vector mesons is displayed for which both the mixing in the propagator and the…

Nuclear Theory · Physics 2009-10-28 Kim Maltman

The ratio of shear viscosity to entropy density shows a valley-shaped pattern well-known in the community of heavy-ion physics. Diffusion coefficients of heavy quark and meson shows the similar structure, and both sketches have become quite…

High Energy Physics - Phenomenology · Physics 2023-03-21 Sarthak Satapathy , Sudipan De , Jayanta Dey , Sabyasachi Ghosh

We study the behavior of the rho vector mass in the context of the almost baryon-free environment of an ultra-relativistic heavy-ion collision. We show that rho scattering within the hadronic phase of the collision leads to a temperature…

High Energy Physics - Phenomenology · Physics 2009-11-10 Alejandro Ayala , Jesus Guillermo Contreras , J. Magnin

QCD sum rules are evaluated at finite nucleon densities and temperatures to determine the change of mass parameters for the lightest vector mesons $\rho$, $\omega$ and $\phi$ in a strongly interacting medium. For conditions relevant for the…

Nuclear Theory · Physics 2008-11-26 S. Zschocke , O. P. Pavlenko , B. Kampfer

We study the relativistic quark-antiquark system embedded in magnetic field. The Hamiltonian containing confinement, one gluon exchange and spin-spin interaction is derived. We analytically follow the evolution of the lowest meson states as…

High Energy Physics - Phenomenology · Physics 2014-01-21 M. A. Andreichikov , B. O. Kerbikov , V. D. Orlovsky , Yu. A. Simonov

We analyze the effect of an isospin chemical potential \mu_I in the Sakai-Sugimoto model, which is the string dual of a confining gauge theory related to large N_c QCD, at temperatures below the chiral symmetry restoration temperature. For…

High Energy Physics - Theory · Physics 2009-09-29 Ofer Aharony , Kasper Peeters , Jacob Sonnenschein , Marija Zamaklar

We discuss the consistency of the traditional vector meson dominance (VMD) model for photons coupling to matter, with the vanishing of vector meson-meson and meson-photon mixing self-energies at q^2=0. This vanishing of vector mixing has…

High Energy Physics - Phenomenology · Physics 2008-11-26 H. B. O'Connell , A. G. Williams , M. Bracco , G. Krein

We present results from an asymptotic magnetohydrodynamic model that is suited for studying the rapidly rotating, low viscosity regime typical of the electrically conducting fluid interiors of planets and stars. We show that the presence of…

Geophysics · Physics 2019-04-17 Stefano Maffei , Michael A. Calkins , Keith Julien , Philippe D. Marti

We study probe flavor branes supersymmetrically embedded in the Klebanov-Strassler background. The embedding is controlled by a single complex parameter mu related to the quark mass. We study the spectrum of the vector mesons as a function…

High Energy Physics - Theory · Physics 2011-03-07 Aldo L. Cotrone , Anatoly Dymarsky , Stanislav Kuperstein

Our aim is to study the electron-positron vacuum pressures in presence of a strong magnetic field $B$. To that end, we obtain a general energy-momentum tensor, depending on external parameters, which in the zero temperature and zero density…

High Energy Physics - Phenomenology · Physics 2009-11-11 H. Perez Rojas , E. Rodriguez Querts

Weak magnetic field induced corrections to effective coupling constants describing light vector mesons mixings and vector meson dominance (VMD) are derived. The magnetic field must be weak with respect to an effective quark mass $M^*$ such…

High Energy Physics - Phenomenology · Physics 2020-11-24 Fábio L. Braghin

The properties of vector mesons in nuclear matter are discussed. Results for the momentum dependence of the $\rho$-meson self energy in matter due to $\rho N$ interactions are presented, and consequences for the production rate of $e^+e^-$…

Nuclear Theory · Physics 2009-09-25 B. Friman

The resistance at the charge neutral (Dirac) point was shown by Checkelsky et al in Phys. Rev. B 79, 115434 (2009) to diverge upon the application of a strong magnetic field normal to graphene. We argue that this divergence is the signature…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 Chang-Yu Hou , Claudio Chamon , Christopher Mudry