ANALYSIS OF THE DECAY MODE D-](K)OVER-BAR-ASTERISK-0-MU+NU()

Citation
Pl. Frabetti et al., ANALYSIS OF THE DECAY MODE D-](K)OVER-BAR-ASTERISK-0-MU+NU(), Physics letters. Section B, 307(1-2), 1993, pp. 262-268
Citations number
6
Categorie Soggetti
Physics
Journal title
ISSN journal
03702693
Volume
307
Issue
1-2
Year of publication
1993
Pages
262 - 268
Database
ISI
SICI code
0370-2693(1993)307:1-2<262:AOTDMD>2.0.ZU;2-G
Abstract
Fermilab high-energy photoproduction experiment E687 provides a high s tatistics sample of the decay mode D+ --> K0BARmu+nu (charge conjugat es are implied). Our analysis yields a branching ratio of GAMMA(D+ --> K0BARmu+nu)/GAMMA(D+ --> K-pi+pi+) = 0.56 +/- 0.04 +/- 0.06. The rat ios of the form factors governing the decay are measured to be R(upsil on) = 1.74+/-0.27+/-0.28 and R2 = 0.78+/-0.18+/-0.10, implying a polar ization of GAMMA(l)/GAMMA(t) = 1.20+/-0.13+/-0.13 for the electron dec ay. Finally, we report new limits on the decay modes D+ --> K-pi+mu+nu (nonresonant) and D+ --> K0BARpi0mu+nu.