Observation of an Intermediate State in ψ ( 3684 ) Radiative Cascade Decay
1975; American Physical Society; Volume: 35; Issue: 20 Linguagem: Inglês
10.1103/physrevlett.35.1323
ISSN1092-0145
AutoresW. Tanenbaum, J. S. Whitaker, G. S. Abrams, A. M. Boyarski, M. Breidenbach, F. Bulos, W. Chinowsky, G. J. Feldman, C. E. Friedberg, D. Fryberger, G. Goldhaber, G. Hanson, D. L. Hartill, B. Jean-Marie, J. A. Kadyk, R. R. Larsen, A. M. Litke, D. Lüke, B. A. Lulu, V. Lüth, H. L. Lynch, C. C. Morehouse, J. M. Paterson, M. L. Perl, F. Pierre, T. P. Pun, P. A. Rapidis, B. Richter, B. Sadoulet, R. F. Schwitters, G. H. Trilling, F. Vannucci, F.C. Winkelmann, J. Wiss,
Tópico(s)Nuclear physics research studies
ResumoWe present evidence for the existence of an intermediate state observed in the decay sequence $\ensuremath{\psi}(3684)\ensuremath{\rightarrow}\ensuremath{\psi}(3095)\ensuremath{\gamma}\ensuremath{\gamma}$. The mass of the state is either 3500 \ifmmode\pm\else\textpm\fi{} 10 or 3270 \ifmmode\pm\else\textpm\fi{} 10 MeV. The branching fraction of the sequence is (3.6 \ifmmode\pm\else\textpm\fi{} 0.7)%.
Referência(s)