Peer-Reviewed Journal Details
Mandatory Fields
Aarts G.;Allton C.;Hands S.;Jäger B.;Praki C.;Skullerud J.
2015
July
Physical Review D - Particles, Fields, Gravitation and Cosmology
Nucleons and parity doubling across the deconfinement transition
Published
()
Optional Fields
92
1
© 2015 American Physical Society. It is expected that nucleons and their parity partners become degenerate when chiral symmetry is restored. We investigate this question in the context of the thermal transition from the hadronic phase to the quark-gluon plasma, using lattice QCD simulations with Nf=2+1 flavors. We observe a clear sign of parity doubling in the quark-gluon plasma. Besides, we find that the nucleon ground state is, within the uncertainty, largely independent of the temperature, whereas temperature effects are substantial in the negative-parity (N∗) channel, already in the confined phase.
1550-7998
10.1103/PhysRevD.92.014503
Grant Details