TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.10.4.085
TI  - Interface junctions in QCD${}_4$
PY  - 2021/04/22
UR  - https://www.scipost.org/SciPostPhys.10.4.085
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 10
IS  - 4
SP  - 085
A1  - Gorantla, Pranay
AU  - Lam, Ho Tat
AB  - We study 3+1 dimensional $SU(N)$ Quantum Chromodynamics (QCD) with $N_f$ degenerate quarks that have a spatially varying complex mass. It leads to a network of interfaces connected by interface junctions. We use anomaly inflow to constrain these defects. Based on the chiral Lagrangian and the conjectures on the interfaces, characterized by a spatially varying $\theta$-parameter, we propose a low-energy description of such networks of interfaces. Interestingly, we observe that the operators in the effective field theories on the junctions can carry baryon charges, and their spin and isospin representations coincide with baryons. We also study defects, characterized by spatially varying coupling constants, in 2+1 dimensional Chern-Simons-matter theories and in a 3+1 dimensional real scalar theory.
ER  -

@Article{10.21468/SciPostPhys.10.4.085,
	title={{Interface junctions in QCD${}_4$}},
	author={Pranay Gorantla and Ho Tat Lam},
	journal={SciPost Phys.},
	volume={10},
	pages={085},
	year={2021},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.10.4.085},
	url={https://scipost.org/10.21468/SciPostPhys.10.4.085},
}