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FIZIKA B 2 (1993) 2, 121-133
 
CHARMLESS AND STRANGLESS NONLEPTONIC B DECAYS
JOSIP TRAMPETIĆ
Department of Theoretical Physics, Ruđer Boąković Institute, P.O.
Box 1016,
41001 Zagreb, Croatia
Received 19 May 1993
Revised manuscript received 15 July 1993
Decay rates of the B-meson are studied through charmless and strangless transitions
into p, r , w
and g systems. The important features of these modes are their
clean signatures. The CLEO II collaboration has recently reported the value
BR(B0 ® p+
p-) = (1.3 +0.8-0.6 ±0.2) ×10-5. This value is tests our approach to
nonleptonic B-decays within the standard model (SM). Since B ®
gg is far beyond our experimental reach, we believe that the
correct determination of the order of magnitude ~ 10-10
for BR(B ® gg) provides the most
reliable value needed at this moment. The most recent experimental report by the CLEO
collaboration on BR(B ® K* g)
= (4.5 ±1.5 ±0.9) ×10-5
represents a confirmation of our SM prediction for the B ® K*
g decay. This experimental result, despite of its great
importance for the SM and the physics beyond the SM, enables us to predict the value
BR(B ® rg) @
(3.5 ±3.3)×10-6.
UDC 539.12
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