Measurements of the properties of D-meson decays

Journal Article · Wed Jul 01 00:00:00 EDT 1981 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.24.78· OSTI ID:6442409

Schindler, R H; Alam, M S; Boyarski, A M; Breidenbach, M; Burke, D L; Dorenbosch, J; Dorfan, J M; Feldman, G J; Franklin, M E.B.; Hanson, G; Hayes, K G; Himel, T; Hitlin, D G; Hollebeek, R J; Innes, W R; Jaros, J A; Jenni, P; Larsen, R R; Lueth, V; Perl, M L ; Richter, B; Roussarie, A; Scharre, D L; Schwitters, R F; Siegrist, J L; Taureg, H; Tonutti, M; Vidal, R A; Weiss, J M; Zaccone, H; Abrams, G; Blocker, C A; Blondel, A; Carithers, W C; Chinowsky, W; Coles, M W; Cooper, S; Dieterle, W E; Dillion, J B; Eaton, M W; Gidal, G; Goldhaber, G; Johnson, A D; Kadyk, J A; Lankford, A J; Millikan, R E; Nelson, M E; Pang, C Y; Patrick, J F; Strait, J; Trilling, G H; Vella, E N; Videau, I

We present a study of the decay properties of charmed D mesons produced near the peak of the psi''(3770) resonance in e/sup +/e/sup -/ annihilation. Branching fractions for nine Cabibbo-favored and three Cabibbo-suppressed decay modes are presented along with upper limits on one additional Cabibbo-favored and four additional Cabibbo-suppressed decay modes. A study of K..pi pi..-decay-mode Dalitz plots reveals a large quasi-two-body pseudoscalar-vector component for the D/sup 0/ decays and an apparent nonuniform population on the Dalitz plot for the D/sup +/ decay into K/sup -/..pi../sup +/..pi../sup +/. Using tagged events, we measure the charged-particle multiplicity and strange-particle content of D decays. A measurement of the D/sup +/ and D/sup 0/ semileptonic decay fractions indicates that the D/sup +/ has a significantly longer lifetime than the D/sup 0/.

• Research Organization: Stanford Linear Accelerator Center, Stanford University, Stanford, California 94305
• DOE Contract Number: W-7405-ENG-48; AC03-76SF00515
• OSTI ID: 6442409
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 24:1; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
645102 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
CABIBBO ANGLE
CHARM PARTICLES
CHARMED MESON RESONANCES
CROSS SECTIONS
D RESONANCES
DALITZ PLOT
DECAY
DIAGRAMS
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
GEV RANGE 01-10
HADRONIC PARTICLE DECAY
HADRONS
INTERACTIONS
KAONS
LEPTON-LEPTON INTERACTIONS
LIFETIME
MESON RESONANCES
MESONS
MULTIPLICITY
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
PSI RESONANCES
PSI-3772 RESONANCES
RENORMALIZATION
RESONANCE PARTICLES
SCATTERPLOTS
SEMILEPTONIC DECAY
SPEAR
STORAGE RINGS
STRANGE PARTICLES
VECTOR MESONS
WEAK PARTICLE DECAY