On the uniqueness of the radiation amplitude zero in radiative W decay
β Scribed by Mark A. Samuel; Mariana Frank; C. Hamzaoui; Dominique Pouliot; Kenneth B. Samuel; Guowen Li
- Book ID
- 113357598
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 123 KB
- Volume
- 243
- Category
- Article
- ISSN
- 0370-2693
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π SIMILAR VOLUMES
The behavior of the invariant amplitudes for processes involving massive vector mesons is investigated in the limit as the mass goes to zero. The constraints of gauge invariance impose a definite structure on the amplitudes at k" = 0, and the question of the uniqueness of this structure is examined.
The photon spectrum accompanying 1S electron capture in the first forbidden unique decay of 204 Tl was measured. The total radiation intensity in the energy range from 100 keV to the spectrum end-point was found to be 2.8(2) Γ 10 -5 per K-capture, confirming a previously reported strong disagreement