Abstract
We study strong-coupling lattice QCD with staggered-Wilson fermions, with an emphasis on discrete symmetries and the possibility of their spontaneous breaking. We perform hopping parameter expansion and effective potential analyses in the strong-coupling limit. From gap equations we find the nonzero pion condensate in some range of a mass parameter, which indicates the existence of the parity-broken phase in lattice QCD with staggered-Wilson fermions. We also find massless pions and PCAC relations around the second-order phase boundary. These results suggest that we can take a chiral limit by tuning a mass parameter in lattice QCD with staggered-Wilson fermions as we would with the Wilson fermion.
| Original language | English |
|---|---|
| Article number | 034501 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 86 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2012 Aug 8 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)
Fingerprint Dive into the research topics of 'Strong-coupling analysis of parity phase structure in staggered-Wilson fermions'. Together they form a unique fingerprint.
Cite this
Misumi, T., Nakano, T. Z., Kimura, T., & Ohnishi, A. (2012). Strong-coupling analysis of parity phase structure in staggered-Wilson fermions. Physical Review D - Particles, Fields, Gravitation and Cosmology, 86(3), [034501]. https://doi.org/10.1103/PhysRevD.86.034501