Search for doubly cabibbo-suppressed D sup + decays

Conference · Thu Nov 01 04:00:00 EST 1990

OSTI ID:6280695

Schindler, R H

Preliminary results of a search for the doubly Cabibbo-suppressed D{sup +} decays D{sup +} {yields} {Kappa}{sup +} {pi}{sup {minus}} {pi} {sup +} D{sup +} {yields} {Kappa}{sup +}{pi}{sup 0}, in the MarkIII detector at SPEAR are presented. Theoretical arguments suggest that these decays may be enhanced relative to Cabibbo-allowed D{sup +} decays. Use of hadronically tagged D{sup +}D{sup {minus}} events produced in the decay of the {psi} (3770), reduce backgrounds significantly, allowing the isolation of three candidate events in the {Kappa}{sup +}{pi}{sup +}{pi}{sup {minus}} final state and a limit on the relative decay rate of the {Kappa}{sup +}{pi}{sup 0}channel. 4 refs., 2 figs.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (USA)
• Sponsoring Organization: DOE/ER; NSF
• DOE Contract Number: AC03-76SF00515; AC02-76ER01195; AC03-81ER40050; AC02-87ER40318
• OSTI ID: 6280695
• Report Number(s): SLAC-PUB-5342; CONF-900822--17; ON: DE91004693
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CABIBBO ANGLE
CHARM PARTICLES
CHARMED MESONS
CHARMONIUM
D MESONS
DECAY
ELEMENTARY PARTICLES
FINAL-STATE INTERACTIONS
HADRONS
INTERACTIONS
MESONS
PARTICLE DECAY
PSEUDOSCALAR MESONS
PSI-3770 MESONS
QUARKONIUM
VECTOR MESONS
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY