Quark droplets with chiral symmetry in the Nambu--Jona-Lasinio model

Abstract

We discuss the stability of strangelets by considering dynamical chiral symmetry breaking. For quark droplets of finite volume, we formulate the Nambu--Jona-Lasinio model with a basis set of the quark wave functions in the chiral bag model. Chiral symmetry breaking for the finite volume bag is discussed in a mean field approximation. Effects of the pion cloud including the chiral Casimir effect are investigated. Physical quantities of the quark droplets such as masses and radii are obtained for quark droplets of baryon numbers up to five. We also apply our model setting to the nucleon and discuss the stability of the quark droplets against nuclei.

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• Finite-volume effects on phase transition in the Polyakov-loop extended Nambu-Jona-Lasinio model with a chiral chemical potential
• Surface effects in color superconducting strange-quark matter
• Magnetized quark matter with a magnetic-field dependent coupling
• Transport coefficients in a finite volume Polyakov--Nambu--Jona-Lasinio model
• Polyakov--Nambu--Jona-Lasinio model in finite volumes
• Fresh look at the Hagedorn mass spectrum as seen in the experiments
• Finite size effect of hadronic matter on its transport coefficients
• Quark Gluon Bags as Reggeons
• Finite size effects in strongly interacting matter at zero chemical potential from Polyakov loop Nambu-Jona-Lasinio model in the light of lattice data
• Landau levels of cold dense quark matter in a strong magnetic field
• Chiral symmetry breaking and vacuum polarization in a bag
• Quark condensates in the chiral bag with the NJL interaction
• Finite-Size Effects on the Critical End Point of Magnetized Quark Matter in the Nonlocal PNJL Model