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A Solution to the Strong {CP} Problem Without an Axion

K.S. Babu
(
- Maryland U.
)
,
Rabindra N. Mohapatra
(
- Maryland U.
)

Sep, 1989

14 pages

Published in:

Phys.Rev.D 41 (1990) 1286

DOI:

10.1103/PhysRevD.41.1286

Report number:

MdDP-PP-90-052

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Abstract: (APS)

We present a solution to the strong CP problem using softly broken parity invariance in the context of left-right-symmetric gauge models with a "seesaw" mechanism for quark masses. A distinguishing feature of the model is that the first nonvanishing contribution to θ¯ arises only at the two-loop level, whereas the electric dipole moment of the neutron dne is generated at the one-loop level via weak CP violation. For the WR mass at the TeV scale, we estimate den≈10−25−10−26 ecm and θ¯≤10−12.

strong interaction: CP
CP: strong interaction
CP: violation
gauge field theory: SU(2) x SU(2) x U(1)
symmetry: left-right
n: electric moment
W: right-handed
W: mass
mass: W
quark: mass

References(24)

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