A measurement of the inclusive B decay branching ratios into charmless and double charmed nal states has been performed, using the data collected by the DELPHI experiment at LEP from 1992 to 1995, by mean of two diierent techniques that are presented in two diierent notes. In the rst analysis, the results are extracted from a t to the b-tagging probability distribution based on the precise impa...

Large branching ratios observed for D and B decays to final states containing the a1(1260) ± are comparable to those for corresponding decays to states containing a charged pion or a charged ρ, and much larger than those for all other decays. Implications are discussed of a “vector-dominance model” in which a W is produced and immediately turns into an axial vector, vector or pseudoscalar meson...

3. The central values of the branching ratios for D → Dγ and D → Dπ sum up to exactly 100 % [1]. Only closer inspection of both relevant experimental papers [2] reveals that this was one of the assumptions underlying the analyses. A similar assumption was made for D s , where again it was assumed that branching ratios for D s → D + s γ and D s → D + s π 0 sum to 100 % [3]. Although the current ...

Within the B̃ absorption band of CH(2)BrCl, we theoretically analyze the laser-induced control of the Br/Cl branching ratio, Br + CH(2)Cl ← CH(2)BrCl → CH(2)Br + Cl, with CH(2)BrCl initially in its vibrational ground state. For weak-field excitation, the Br/Cl branching ratio increases as a function of wavelength, however, for wavelengths below 180 nm the branching ratio cannot be made smaller t...