Electroweak Physics for Color Superconductivity

Abstract

We construct the effective theories describing the electroweak interactions for the low energy excitations associated with the color superconductive phases of QCD at high matter density. The main result, for the 3 flavor case, is that the quasiparticle Goldstone boson ${\pi }^0$ decay into two physical massless photons is identical to the zero density case once we use the new Goldstone decay constant and the modified electric charge $\tilde{e}=e\cos \theta$, with $\tan \theta =2e/\sqrt{3}{g}_s$ and $g_s$ the strong coupling constant. For 2 flavors we find that the coupling of the quarks to the neutral vector boson $Z^0$ is modified with respect to the zero density case. We finally point out possible applications of our result to the physics of compact objects.

23 pages, 1 Figure, RevTex. More discussion and references added

References in corpus (13)

• Magnetic fields within color superconducting neutron star cores
• Inverse meson mass ordering in color-flavor-locking phase of high density QCD: erratum
• Meson Masses in High Density QCD
• Debye screening and Meissner effect in a two-flavor color superconductor
• Masses of the Goldstone modes in the CFL phase of QCD at finite density
• Neutrino Propagation In Color Superconducting Quark Matter
• Debye screening and Meissner effect in a three-flavor color superconductor
• Phases of Chiral Gauge Theories
• Chiral Lagrangian treatment of pi eta scattering
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• A Note on Anomaly Matching for Finite Density QCD
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Cited by in corpus (13)

• Quantum Anomalies in Dense Matter
• Neutrino Emission from Goldstone Modes in Dense Quark Matter
• Effective Description of QCD at Very High Densities
• Neutrino Rates in Color Flavor Locked Quark Matter
• Photon Emission from Dense Quark Matter
• Photon Self-Energy in a Color Superconductor
• Supernovae, Hypernovae and Color Superconductivity
• Partial Deconfinement in Color Superconductivity
• Duality in the Color Flavor Locked Spectrum
• Some aspects of color superconductivity: an introduction
• Chiral Lagrangians
• Scalar-isoscalar excitation in dense quark matter
• Skyrmions and pentaquarks in the quark-hadron continuity perspective