CP violation and chiral symmetry breaking in hot and dense quark matter in presence of magnetic field

Abstract

We investigate chiral symmetry breaking and strong CP violation effects on the phase diagram of strongly interacting matter in presence of a constant magnetic field. The effect of magnetic field and strong CP violating term on the phase structure at finite temperature and density is studied within a three flavor Nambu-Jona-Lasinio (NJL) model including the Kobayashi-Maskawa-t'Hooft (KMT) determinant term. This is investigated using an explicit variational ansatz for ground state with quark anti-quark pairs leading to condensates both in scalar and pseudoscalar channels. Magnetic field enhances the condensate in both the channels. Inverse magnetic catalysis for CP transition at finite chemical potential is seen for zero temperature and for small magnetic fields.

14 pages with 13 Figures. arXiv admin note: text overlap with arXiv:1101.0498

References in corpus (19)

• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• Charge separation induced by P-odd bubbles in QCD matter
• QCD Phase Transition in a Strong Magnetic Background
• Quark matter under strong magnetic fields in the Nambu--Jona-Lasinio Model
• Superconductivity of QCD vacuum in strong magnetic field
• Inverse magnetic catalysis in dense holographic matter
• Inhomogeneous phases in the Nambu-Jona-Lasino and quark-meson model
• Inverse magnetic catalysis in the (2+1)-flavor Nambu--Jona-Lasinio and Polyakov--Nambu--Jona-Lasinio models
• The chiral condensate in a constant electromagnetic field
• Chiral Magnetic Spiral
• Effects of eight-quark interactions on the hadronic vacuum and mass spectra of light mesons
• Vacuum structure and chiral symmetry breaking in strong magnetic fields for hot and dense quark matter
• Magnetic Fields Boosted by Gluon Vortices in Color Superconductivity
• Chiral asymmetry of the Fermi surface in dense relativistic matter in a magnetic field
• Spontaneous CP-violation in the strong interaction at theta = pi
• The QCD critical end point in the SU(3) Nambu--Jona-Lasinio model
• Chromomagnetic Instability and Induced Magnetic Field in Neutral Two-Flavor Color Superconductivity
• Chiral asymmetry and axial anomaly in magnetized relativistic matter
• To see the exotic Theta^+ baryon from interference

Cited by in corpus (4)

• Axion effects in the stability of hybrid stars
• In medium properties of axion within a Polyakov loop enhanced Nambu-Jona-Lasinio model
• Shear viscosity coefficient of magnetized QCD medium near chiral phase transition
• First-order CP phase transition in two-flavor QCD at $\theta =\pi$ under electromagnetic scale anomaly via a Nambu-Jona-Lasinio description