# ms: semi-exclusive analyses (2)

##

- ## Flavour @ Production::

  Standard method (e.g. Qjet)
  ~ 70 % ~ 70 % S ~ 33 %
  New method (ALEPH +DELPHI):
  - exploit all available tags ( l(other jet), K(fragm.) , Qjet,,...)
  - Optimal variable Xtag
  - Determine event per event based on Xtag value
    ~ 73-78 % = 100 % S ~ 46-50 %
    DELPHI(P): ms < 8.1 ps-1 P = 46 %

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