Absolute measurement of hadronic branching fractions of the Ds+ meson

Journal article

The branching fractions of Ds± meson decays serve to normalize many measurements of processes involving charm quarks. Using 298pb-1 of e+e- collisions recorded at a center of mass energy of 4.17 GeV, we determine absolute branching fractions for eight Ds± decays with a double tag technique. In particular we determine the branching fraction B(Ds+→K-K+π+)=(5.50±0.23±0.16)%, where the uncertainties are statistical and systematic, respectively. We also provide partial branching fractions for kinematic subsets of the K-K+π+ decay mode. © 2008 The American Physical Society.

Authors: Alexander, J; Berkelman, K; Cassel, D; Duboscq, J; Ehrlich, R

• Journal: Physical Review Letters
• Volume: 100
• Issue: 16
• Publication date: 2008-04-23
• DOI: 10.1103/PhysRevLett.100.161804
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English