Higher-dimensional QCD without the strong CP problem

QCD in a five-dimensional sliced bulk with chiral extra-quarks on the boundaries is generically free from the strong CP problem. Accidental axial symmetry is naturally present except for suppressed breaking interactions, which plays a role of the Peccei–Quinn symmetry to make the strong CP phase suf...

Full description

Saved in:
Bibliographic Details
Published in:Physics letters. B 2002-05, Vol.534 (1-4), p.93-96
Main Authors: Izawa, K.-I., Watari, T., Yanagida, T.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:QCD in a five-dimensional sliced bulk with chiral extra-quarks on the boundaries is generically free from the strong CP problem. Accidental axial symmetry is naturally present except for suppressed breaking interactions, which plays a role of the Peccei–Quinn symmetry to make the strong CP phase sufficiently small.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(02)01663-5