D Hadronic Branching Fractions and DD-bar Cross Section at {psi}'' from CLEO-c

Journal Article · Sat Feb 11 04:00:00 EST 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2176513· OSTI ID:20798101

Crede, V ^[1]

---

1. Florida State University, Tallahassee, FL 32306 (United States)

We report on the determination of absolute hadronic branching fractions of charged and neutral D mesons using a double tag technique. The analysis is based on 55.8 pb-1 of e+e- collisions recorded at the {psi}(3770) resonance with the CLEO-c detector at CESR. Among measurements for three D0 and six D+ modes, we have obtained reference branching fractions B(D0 {yields} K-{pi}+) (3.91 {+-} 0.08 {+-} 0.09) % and B(D+ {yields} K-{pi}+{pi}+) = (9.5 {+-} 0.2 {+-} 0.3) %, where the uncertainties are statistical and systematic, respectively. It should be pointed out that final state radiation is included in these branching fractions by allowing for additional, unobserved, photons in the final state. We have also extracted the cross sections {sigma}(e{sup +}e{sup -} {yields} D{sup 0}D-bar{sup 0}) = (3.60 {+-} 0.07{sub -0.05}{sup +0.07}) nb and {sigma}(e{sup +}e{sup -} {yields} D{sup +}D{sup -}) = (2.79 {+-} 0.07{sub -0.04}{sup +0.010}) nb using a determination of the integrated luminosity.

• OSTI ID: 20798101
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 814; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
CESR STORAGE RING
CROSS SECTIONS
D MINUS MESONS
D NEUTRAL MESONS
D PLUS MESONS
ELECTRON-ELECTRON INTERACTIONS
ELECTRONS
KAONS MINUS
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PHOTONS
PIONS PLUS
PSI-3770 MESONS
RESONANCE PARTICLES