Pi-eta Degeneracy Problem in Gauge Theories

Bars, Itzhak; Halpern, M.B.

doi:10.1103/PhysRevD.9.3430

Pi-eta Degeneracy Problem in Gauge Theories

Itzhak Bars
(
- Stanford U., ITP
)
,
M.B. Halpern
(
- UC, Berkeley
)

Mar, 1974

21 pages

Published in:

Phys.Rev.D 9 (1974) 3430

DOI:

10.1103/PhysRevD.9.3430

Report number:

ITP-456-STANFORD

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Abstract: (APS)

The quark mass matrix appears to give an inadequate description of hadron symmetry breaking. Already, for pseudoscalar masses, such an approach predicts mπ=mη. We show one resolution of this old problem in terms of the explicit strong dynamics and the currents of M-gauge models. We also discuss a second possible mechanism, applicable to a quark or M model, which generates a calculable breaking as a radiative correction in one loop. This second mechanism depends only on the dynamics of the weak interactions.

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