SEARCHING A SYSTEMATICS FOR NONFACTORIZABLE CONTRIBUTIONS TO HADRONICDECAYS OF D-0 AND D+ MESONS

Authors
VERMA RC
Citation
Rc. Verma, SEARCHING A SYSTEMATICS FOR NONFACTORIZABLE CONTRIBUTIONS TO HADRONICDECAYS OF D-0 AND D+ MESONS, Zeitschrift fur Physik. C, Particles and fields, 69(2), 1996, pp. 253-258
Citations number
21
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
69
Issue
2
Year of publication
1996
Pages
253 - 258
Database
ISI
SICI code
0170-9739(1996)69:2<253:SASFNC>2.0.ZU;2-5
Abstract
We investigate nonfactorizable contributions to charm meson decays in D --> (K) over bar pi/(K) over bar rho/(K) over barpi/(k) over bar a( 1)/(K) over barrho modes. Obtaining the contributions from spectator- quark diagrams for N-c = 3, we determine nonfactorizable isospin 1/2 a nd 3/2 amplitudes required to explain the data for these modes. We obs erve that ratio of these amplitudes seem to follow a universal value.