Baryon currents in QCD with compact dimensions

Journal Article · Fri Jun 15 04:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.121701· OSTI ID:20933311

Lucini, B ^[1]; Patella, A ^[2]; Pica, C ^[3]

---

1. Physics Department, Swansea University, Singleton Park, Swansea SA2 8PP (United Kingdom)
2. Scuola Normale Superiore, Piazza dei Cavalieri 27, 56126 Pisa (Italy)
3. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)

On a compact space with nontrivial cycles, for sufficiently small values of the radii of the compact dimensions, SU(N) gauge theories coupled with fermions in the fundamental representation spontaneously break charge conjugation, time reversal, and parity. We show at one loop in perturbation theory that a physical signature for this phenomenon is a nonzero baryonic current wrapping around the compact directions. The persistence of this current beyond the perturbative regime is checked by lattice simulations.

• OSTI ID: 20933311
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 12 Vol. 75; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
COMPUTERIZED SIMULATION
GAUGE INVARIANCE
LATTICE FIELD THEORY
PARITY
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
SU GROUPS