Diquark Bose-Einstein condensation at strong coupling
classification
✦ hep-ph
keywords
couplingdiquarkcondensationscalarabovealreadybindingbose
read the original abstract
We investigate the phase structure of the $SU_f(2)\otimes SU_c(3)$ Nambu--Jona-Lasinio model as a function of the scalar diquark coupling strength. Above a critical coupling, the binding energy is sufficiently large to overcompensate the quark masses and a massless scalar diquark bound state emerges which leads to Bose condensation already in the vacuum.
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