The Cheshire Cat Bag Model: Color Anomaly and $η'$ Properties

Details The Cheshire Cat Bag Model: Color Anomaly and $η'$ Properties The Cheshire Cat Bag Model: Color Anomaly and $η'$ Properties

1992-10-08

arxiv.org/abs/hep-ph/9210220v1

Nucl.Phys. A553 (1993) 675c-680c

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, LaTeX, Nordita - 92/68 N

Scientific paper

10.1016/0375-9474(93)90677-P

We show that color can leak from a QCD bag if we allow for pseudoscalar
isoscalar singlet ($\eta'$) coupling at the surface. To enforce total
confinement of color an additional boundary term is suggested. New relations
between the $\eta'$ mass and decay constant and the QCD gluon condensates are
derived and compared with the empirical parameters.

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