Three-pion intermediate state and the k0(l) ---> mu+ mu- puzzle

Aviv, R.; Sawyer, R.F.

doi:10.1103/PhysRevD.4.2740

Three-pion intermediate state and the k0(l) ---> mu+ mu- puzzle

R. Aviv
(
- UC, Santa Barbara
)
,
R.F. Sawyer
(
- UC, Santa Barbara
)

1971

3 pages

Published in:

Phys.Rev.D 4 (1971) 2740-2742

DOI:

10.1103/PhysRevD.4.2740

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Abstract: (APS)

Soft-pion methods are used to derive an upper bound for the contribution of the 3π intermediate state to the imaginary part of the amplitude for KL0→μ++μ− in terms of the experimental upper bound for the decay rate, π0→e+e−. The numerical result obtained is insufficient to reduce significantly the (too-large) imaginary part coming from the 2γ state; that is, insufficient to resolve the KL0→μ+μ− puzzle.

k0: leptonic decay
leptonic decay: k0
final state
muon+: muon-
current algebra: effective lagrangians
pi0: decay
decay: pi0
electron: positron

References(15)

Figures(0)

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•
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•
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Norman H. Christ
(
- Columbia U.
)
,
T.D. Lee
(
- Columbia U.
)

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•
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