Observation of the isospin-violating decay {ital D}{sub {ital s}}{sup *+}{r_arrow}{ital D}{sup +}{sub {ital s}}{pi}{sup 0}

Journal Article · Mon Oct 30 00:00:00 EST 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.75.3232· OSTI ID:135449

Gronberg, J; Korte, C M; Kutschke, R; Menary, S; Morrison, R J; Nakanishi, S; Nelson, H N; Nelson, T K; Qiao, C; Richman, J D; Roberts, D; Ryd, A; Tajima, H; Witherell, M S; Balest, R; Cho, K; Ford, W T; Lohner, M; Park, H; Rankin, P ; Smith, J G; Alexander, J P; Bebek, C; Berger, B E; Berkelman, K; Bloom, K; Browder, T E; Cassel, D G; Cho, H A; Coffman, D M; Crowcroft, D S; Dickson, M; Drell, P S; Dumas, D J; Ehrlich, R; Elia, R; Gaidarev, P; Garcia-Sciveres, M; Gittelman, B; Gray, S W; Hartill, D L; Heltsley, B K; Henderson, S; Jones, C D; Jones, S L; Kandaswamy, J; Katayama, N; Kim, P C; Kreinick, D L; Lee, T; Liu, Y; Ludwig, G S; Masui, J; Mevissen, J; Mistry, N B; Ng, C R; Nordberg, E; Patterson, J R; Peterson, D; Riley, D; Soffer, A; Avery, P; Freyberger, A; Lingel, K; Prescott, C; Rodriguez, J; Yang, S; Yelton, J; Brandenburg, G; Cinabro, D; Liu, T; Saulnier, M; Wilson, R; Yamamoto, H; Bergfeld, T; Eisenstein, B I; Ernst, J; Gladding, G E; Gollin, G D; Palmer, M; Selen, M; Thaler, J J; Edwards, K W; McLean, K W; Ogg, M; Bellerive, A; Britton, D I; Hyatt, E R.F.; Janicek, R; MacFarlane, D B; Patel, P M; Spaan, B; Sadoff, A J; Ammar, R; Baringer, P; Bean, A; Besson, D; Coppage, D; Copty, N; Davis, R; Hancock, N; Kotov, S; Kravchenko, I; Kwak, N; Kubota, Y; Lattery, M; Momayezi, M; Nelson, J K; Patton, S; Poling, R; Savinov, V; Schrenk, S; Wang, R; Alam, M S; Kim, I J; Ling, Z; Mahmood, A H; O`Neill, J J; Severini, H; Sun, C R; Wappler, F; Crawford, G; Fulton, R; Fujino, D; Gan, K K; Honscheid, K; Kagan, H; Kass, R; Lee, J; Sung, M; White, C; Wolf, A; Zoeller, M M; Fu, X; Nemati, B; Ross, W R; Skubic, P; Wood, M; Bishai, M; Fast, J; Gerndt, E; Hinson, J W; Miao, T; Miller, D H; Modesitt, M; Shibata, E I; Shipsey, I P.J.; Wang, P N; Gibbons, L; Johnson, S D; Kwon, Y; Roberts, S; Thorndike, E H; Coan, T

Using data collected with the CLEO II detector, we have observed the isospin-violating decay {ital D}{sub {ital s}}{sup *+}{r_arrow}{ital D}{sup +}{sub {ital s}}{pi}{sup 0}. The decay rate for this mode, relative to the dominant radiative decay, is found to be {Gamma}({ital D}{sub {ital s}}{sup *+}{r_arrow}{ital D}{sup +}{sub {ital s}}{pi}{sup 0}) /{Gamma}({ital D}{sub {ital s}}{sup *+}{r_arrow}{ital D}{sup +}{ital s}{gamma}) =0.062{sub {minus}0.018}{sup +0.020}{plus_minus}0.022. {copyright} {ital 1995} {ital The} {ital American} {ital Physical} {ital Society}.

• OSTI ID: 135449
• Journal Information: Physical Review Letters, Vol. 75, Issue 18; Other Information: PBD: 30 Oct 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
D S MESONS
WEAK HADRONIC DECAY
ISOSPIN
CHARGED PARTICLES
MASS DIFFERENCE
RADIATIVE DECAY
VIOLATIONS