SO(4) invariant Higgs-Yukawa model with reduced staggered fermions
- Syracuse Univ., NY (United States)
- Univ. of Bern (Switzerland)
We explore the phase structure of a four dimensional SO(4) invariant lattice Higgs-Yukawa model comprising four reduced staggered fermions interacting with a real scalar field. The fermions belong to the fundamental representation of the symmetry group while the three scalar field components transform in the self-dual representation of SO(4). The model is a generalization of a four fermion system with the same symmetries that has received recent attention because of its unusual phase structure comprising massless and massive symmetric phases separated by a very narrow phase in which a small bilinear condensate breaking SO(4) symmetry is present. The generalization described in this paper simply consists of the addition of a scalar kinetic term. We find a region of the enlarged phase diagram which shows no sign of a fermion condensate or symmetry breaking but in which there is nevertheless evidence of a diverging correlation length. Our results in this region are consistent with the presence of a single continuous phase transition separating the massless and massive symmetric phases observed in the earlier work.
- Research Organization:
- Syracuse Univ., NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP); USDOE
- Grant/Contract Number:
- SC0009998
- OSTI ID:
- 1488898
- Alternate ID(s):
- OSTI ID: 1611296
- Journal Information:
- Physical Review D, Vol. 98, Issue 11; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Lattice gauge theory for physics beyond the Standard Model
|
journal | November 2019 |
Lattice Gauge Theory for Physics Beyond the Standard Model | text | January 2019 |
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