Recent results on hadronic D/sub s/ and D meson decays from the Mark III

Conference · Sat Jul 01 00:00:00 EDT 1989

OSTI ID:5811594

Adler, J; Bai, Z; Blaylock, G T; Bolton, T; Brient, J C; Browder, T E; Brown, J S; Bunnell, K O; Burchell, M; Burnett, T H; Cassell, R E; Coffman, D; Cook, V; Coward, D H

Recent results on hadronic D/sub s/ and D decays from the Mark III collaboration are presented. The absolute branching ratio B(D/sub s//sup +/ /yields/ /phi//pi//sup +/) is studied by searching for fully reconstructed e/sup +/e/sup /minus// /yields/ D/sub s/*/sup /plus minus//D/sub s//sup /minus plus// events using seven hadronic decay modes of the D/sub s//sup +/. A limit of B(D/sub s//sup +/ /yields/ /phi//pi//sup +/) < 4.1% at 90% C.L. is obtained. Evidence is presented for the decay D/sub s//sup +/ /yields/ f/sub 0/(975)/pi//sup +/ which agrees with a recent experimental observation. Upper limits are set for the relative branching ratios B(D/sub s//sup +/ /yields/ /eta//pi//sup +/)/B(D/sub s//sup +/ /yields/ /phi//pi//sup +/) < 2.5 and B(D/sub s//sup +/ /yields/ /eta//prime//pi//sup +/)/B(D/sub s//sup +/ /yields/ /phi//pi//sup +/) < 1.9, where the /eta/ is studied in both the /gamma//gamma/ and the /pi//sup +//pi//sup /minus///pi//sup 0/ decay modes and the /eta//prime/ in the /eta//pi//sup +//pi//sup /minus//, /eta/ /yields/ /gamma//gamma/ decay chain. The resonant substructure of D/sup 0/ /yields/ K/sup /minus///pi//sup +//pi//sup /minus///pi//sup +/ and D/sup +/ /yields/ /bar K//sup 0//pi//sup +//pi//sup /minus///pi//sup +/ is studied. The branching ratio of D/sup 0/ /yields/ /bar K/*/sup 0//rho//sup 0/ is found to be smaller than the theoretically expected whereas the decay modes D/sup 0/ /yields/ /alpha//sub 1//sup +/K/sup /minus// and D/sup +/ /yields/ /alpha//sub 1//sup +//bar K//sup 0/ are found to be large and account for 50% of these final states. 33 refs., 9 figs., 2 tabs.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (USA)
• DOE Contract Number: AC03-76SF00515; AC02-76ER01195; AC02-87ER40318; AC03-81ER40050; AA03-76SF00034
• OSTI ID: 5811594
• Report Number(s): SLAC-PUB-5052; CONF-8908142-1; ON: DE89016948
• Resource Relation: Conference: 14. international symposium on lepton and photon interactions, Stanford, CA, USA, 7-12 Aug 1989; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
D MESONS
HADRONIC PARTICLE DECAY
BRANCHING RATIO
CROSS SECTIONS
EXPERIMENTAL DATA
F0-975 MESONS
KAONS
MASS SPECTRA
PIONS
BOSONS
CHARM PARTICLES
CHARMED MESONS
DATA
DECAY
ELEMENTARY PARTICLES
HADRONS
INFORMATION
MESONS
NUMERICAL DATA
PARTICLE DECAY
PSEUDOSCALAR MESONS
SCALAR MESONS
SPECTRA
STRANGE MESONS
STRANGE PARTICLES
645103* - High Energy Physics- Particle Interactions &amp; Properties-Experimental- Strong Interactions &amp; Baryon &amp; Meson Properties