Search for inclusive b → sl+l-
Physical Review Letters 80:11 (1998) 2289-2293
Abstract:
We have searched for the effective flavor changing neutral-current decays b → sl+l- using an inclusive method. We set upper limits on the branching ratios B(b → se+e-) < 5.7 × 10-5, B(b → sμ+μ-) < 5.8 × 10-5, and B(b → se±μ±) < 2.2 × 10-5 [at 90% confidence level (C.L.)]. Combing the dielectron and dimuon decay modes we find B(b → sl+l-) < 4.2 × 10-5 (at 90% C.L.). © 1998 The American Physical Society.Study of semileptonic decays of [Formula presented] mesons to charmed baryons
Physical Review D Particles Fields Gravitation and Cosmology 57:11 (1998) 6604-6608
Abstract:
Using data collected by the CLEO II detector at a center-of-mass energy on or near the (Formula presented) resonance, we have determined the 90% confidence level upper limit (Formula presented) for electrons with momentum above (Formula presented) We have also obtained the limit (Formula presented) at the 90% confidence level and measured the ratio (Formula presented). © 1998 The American Physical Society.Two-Body B meson decays to η and η′: Observation of B→η′K
Physical Review Letters 80:17 (1998) 3710-3714
Abstract:
In a sample of 6.6×106 produced B mesons we have observed decays B→η′K, with branching fractions B(B+→η′K)=(6.5+1.5-1.4±0.9)×10-5 and B(B0→η′K)=(4.7+2.7-2.0±0.9)×10-5. We have searched with comparable sensitivity for 17 related decays to final states containing an η or η′ meson accompanied by a single particle or low-lying resonance. Our upper limits for these constrain theoretical interpretations of the B→η′K signal. © 1998 The American Physical Society.A limit on the mass of the ντ
PHYSICS LETTERS B 431:1-2 (1998) 209-218
Experimental tests of lepton universality in τ decay (vol 55 D, pg 2559, 1997) -: art. no. 119903
PHYSICAL REVIEW D 58:11 (1998) ARTN 119903