On the pi ---> e neutrino gamma decay sensitivity to a tensor coupling in the effective quark lepton interaction

Poblaguev, A.A.

doi:10.1016/0370-2693(90)92108-U

On the pi ---> e neutrino gamma decay sensitivity to a tensor coupling in the effective quark lepton interaction

A.A. Poblaguev
(
- Moscow, INR
)

Mar, 1990

4 pages

Published in:

Phys.Lett.B 238 (1990) 108-111

Published: 1990

DOI:

10.1016/0370-2693(90)92108-U

View in:

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Abstract: (Elsevier)

It is shown that π →ev γ decay is sensitive to the search for a tensor coupling in the effective quark-lepton four-fermion interaction. The experimental data from the ISTRA facility may be interpreted as an indication for a nonzero tensor coupling | φ T |≅4×10 −2 . The value obtained does not contradict the listed constraints on this coupling.

pi: radiative decay
radiative decay: pi
four-fermion interaction
coupling: tensor
tensor: coupling
quark
nucleus: semileptonic decay
semileptonic decay: nucleus
numerical calculations: interpretation of experiments
pi --> electron neutrino photon

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