First measurement of [Gamma]([ital D][sub [ital s]][sup +][r arrow][mu][sup +][nu])/[Gamma]([ital D][sub [ital s]][sup +][r arrow][phi][pi][sup +])

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.49.5690· OSTI ID:7050530

Acosta, D; Athanas, M; Masek, G; Paar, H; Bean, A; Gronberg, J; Kutschke, R; Menary, S; Morrison, R J; Nakanishi, S; Nelson, H N; Nelson, T K; Richman, J D; Ryd, A; Tajima, H; Schmidt, D; Sperka, D; Witherell, M S; Procario, M; Yang, S ; Balest, R; Cho, K; Daoudi, M; Ford, W T; Johnson, D R; Lingel, K; Lohner, M; Rankin, P; Smith, J G; Alexander, J P; Bebek, C; Berkelman, K; Besson, D; Browder, T E; Cassel, D G; Cho, H A; Coffman, D M; Drell, P S; Ehrlich, R; Galik, R S; Garcia-Sciveres, M; Geiser, B; Gittelman, B; Gray, S W; Hartill, D L; Heltsley, B K; Jones, C D; Jones, S L; Kandaswamy, J; Katayama, N; Kim, P C; Kreinick, D L; Ludwig, G S; Masui, J; Mevissen, J; Mistry, N B; Ng, C R; Nordberg, E; Ogg, M; Patterson, J R; Peterson, D; Riley, D; Salman, S; Sapper, M; Worden, H; Wuerthwein, F; Avery, P; Freyberger, A; Rodriguez, J; Stephens, R; Yelton, J; Cinabro, D; Henderson, S; Kinoshita, K; Liu, T; Saulnier, M

We present a measurement of [Gamma]([ital D][sub [ital s]][sup +][r arrow][mu][sup +][nu])/[Gamma]([ital D][sub [ital s]][sup +][r arrow][phi][pi][sup +])= 0.245[plus minus]0.052[plus minus]0.074. Using this ratio and [ital scrB]([ital D][sub [ital s]][sup +][r arrow][phi][pi][sup +])=(3.7[plus minus]0.9)% we extract [ital f][sub [ital D][ital s]]=344[plus minus]37[plus minus]52[plus minus]42 MeV, where the last error is due to the uncertainty in the [ital D][sub [ital s]][sup +][r arrow][phi][pi][sup +] absolute branching ratio. This result is larger than most theoretical predictions.

• OSTI ID: 7050530
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:11; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662350* -- Decays of Mesons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED MESONS
D MESONS
D PLUS MESONS
D S MESONS
DECAY
DIMENSIONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
INTERACTIONS
LEPTONIC DECAY
LEPTONS
MASSLESS PARTICLES
MATTER
MESONS
MUONS
MUONS PLUS
NEUTRINOS
PARTICLE DECAY
PHI-1020 MESONS
PIONS
PIONS PLUS
PSEUDOSCALAR MESONS
QUARKONIUM
STRANGEONIUM
VECTOR MESONS
WEAK INTERACTIONS
WEAK PARTICLE DECAY
WIDTH