FNAL-P-0865 - INSPIRE

FNAL-P-0865(
Fermilab
)

Sensitivity study of charm and beauty decays

(

Proposed: 1993,
Still Running

)

We propose a comprehensive study of low-multiplicity B decays to fully-charged final states, to be carried out using a high-rate open-geometry spectrometer. This spectrometer will be assembled in stages over the next two fixed-target runs, building on systems already available from E789 and (possibly) other fixed-target experiments. It will differ from existing open-geometry spectrometers in the use of a small beam and target, with a small beam hole extending through the apparatus, to maximize rate capability while allowing efficient triggering based on decay-vertex topology and the presence of high-transverse momenum secondaries. Our goal for the 1994/95 run is

\sim 100

events reconstructed per mode in

B^0 \to

dihadrons,

B^0 \to J/\psi K_S

B^\pm \to J\psi K^\pm

B \to D\pi^\pm

, etc. Our longterm goal is observation of CP violation in B decay, which we may achieve by the end of the decade if we can develop further techniques for increasing the rate capability of the spectrometer.