In:
Acta Physica Sinica, Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences, Vol. 26, No. 1 ( 1977), p. 9-
Abstract:
The 2γ width of X(2.8) which is observed as a decay product of J (3.095) can be determined from high energy Coulumb photoproduction of this particle on nu-cleons and nucleus. The pertinent Feynman diagrams are discussed, the related coupling constants are analized and estimated, and the differential photo-production crossections from 0-3° of 50 and 100 GeV γ on proton (and also 100 GeV γ on the nucleus of lead) are calculated. The results show that if the decay width is not much less than 1 keV, then it can be determined accurately by this Coulumb photo-production measurement.
Type of Medium:
Online Resource
ISSN:
1000-3290
,
1000-3290
Language:
Unknown
Publisher:
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Publication Date:
1977
Permalink