Isospin mass splittings from precision measurements of D sup * - D mass differences

Journal Article · Mon Oct 05 00:00:00 EDT 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.2046· OSTI ID:7029992

Bortoletto, D; Brown, D N; Dominick, J; McIlwain, R L; Miao, T; Miller, D H; Modesitt, M; Schaffner, S F; Shibata, E I; Shipsey, I P.J.; Battle, M; Ernst, J; Kroha, H; Roberts, S; Sparks, K; Thorndike, E H; Wang, C; Sanghera, S; Skwarnicki, T; Stroynowski, R ; Artuso, M; Goldberg, M; Horwitz, N; Kennett, R; Moneti, G C; Muheim, F; Playfer, S; Rozen, Y; Rubin, P; Stone, S; Thulasidas, M; Yao, W; Zhu, G; Barnes, A V; Bartelt, J; Csorna, S E; Egyed, Z; Jain, V; Sheldon, P; Akerib, D S; Barish, B; Chadha, M; Cowen, D F; Eigen, G; Miller, J S; Urheim, J; Weinstein, A J; Acosta, D; Masek, G; Ong, B; Paar, H; Sivertz, M; Bean, A; Gronberg, J; Kutschke, R; Menary, S; Morrison, R J; Nelson, H; Richman, J; Tajima, H; Schmidt, D; Sperka, D; Witherell, M; Procario, M; 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

Using the decay modes, {ital D}{sup *+}{r arrow}{ital D}{sup +}{pi}{sup 0} and {ital D}{sup *0}{r arrow}{ital D}{sup 0}{pi}{sup 0}, we have measured the {ital D}{sup *+-}{ital D+} and {ital D}{sup *0-}{ital D0} mass differences to be 140{plus minus}0.08{plus minus}0.06 and 142.12{plus minus}0.05{plus minus}0.05 MeV, respectively. Combining these measurements with the Particle Data Group average for the {ital D}{sup *+-}{ital D0} mass difference, we obtain isospin mass splittings for {ital D}{sup *+-}{ital Dusp}*0 and {ital D}{sup +-}{ital D0} of 3.32{plus minus}0.08{plus minus}0.05 and 4.80{plus minus}0.10 {plus minus}0.06 MeV. We discuss the implications of these measurements for models of isospin mass differences and model-dependent estimates of {ital f}{sub {ital D}}.

• OSTI ID: 7029992
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 69:14; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

662350* -- Decays of Mesons-- (1992-)
662420 -- Properties of Mesons & Meson Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
BOSONS
CHARM PARTICLES
CHARMED MESONS
D -2010 MESONS
D MESONS
DATA
DECAY
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FUNCTIONS
HADRONIC PARTICLE DECAY
HADRONS
HYPERFINE STRUCTURE
INFORMATION
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MASS
MESONS
MONTE CARLO METHOD
NUMERICAL DATA
PARTICLE DECAY
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
PSEUDOSCALAR MESONS
VECTOR MESONS
WAVE FUNCTIONS