Selen, M; Sadoff, AJ; Ammar, R; Ball, S; Baringer, P; Coppage, D; Copty, N; Davis, R; Hancock, N; Kelly, M; Kwak, N; Lam, H; Kubota, Y; Lattery, M; Nelson, JK; Patton, S; Perticone, D; Poling, R; Savinov, V; Schrenk, S; Wang, R; Alam, MS; Kim, IJ; Nemati, B; O’Neill, JJ; Severini, H; Sun, CR; Zoeller, MM; Crawford, G; Daubenmeir, CM; Fulton, R; Fujino, D; Gan, KK; Honscheid, K; Kagan, H; Kass, R; Lee, J; Malchow, R; Morrow, F; Skovpen, Y; Sung, M; White, C; Whitmore, J; Wilson, P; Butler, F; Fu, X; Kalbfleisch, G; Lambrecht, M; Ross, WR; Skubic, P; Snow, J; Wang, PL; Wood, M; Bortoletto, D; Brown, DN; Fast, J; McIlwain, RL; Miao, T; Miller, DH; Modesitt, M; Schaffner, SF; Shibata, EI; Shipsey, IPJ; Wang, PN; Battle, M; Ernst, J; Kroha, H; Roberts, S; Sparks, K; Thorndike, EH; Wang, CH; Dominick, J; Sanghera, S; Skwarnicki, T; Stroynowski, R; Artuso, M; He, D; Goldberg, M; Horwitz, N; Kennett, R; Moneti, GC; Muheim, F; Mukhin, Y; Playfer, S; Rozen, Y

doi:10.1103/physrevlett.71.1973

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Measurement of the D→ππ branching fractions

1993

Selen, M;
Sadoff, AJ;
Ammar, R;
Ball, S;
Baringer, P;
Coppage, D;
Copty, N;
Davis, R;
Hancock, N;
Kelly, M;
Kwak, N;
Lam, H;
Kubota, Y;
Lattery, M;
Nelson, JK;
Patton, S;
Perticone, D;
Poling, R;
Savinov, V;
Schrenk, S;
Wang, R;
Alam, MS;
Kim, IJ;
Nemati, B;
O’Neill, JJ;
Severini, H;
Sun, CR;
Zoeller, MM;
Crawford, G;
Daubenmeir, CM;
Fulton, R;
Fujino, D;
Gan, KK;
Honscheid, K;
Kagan, H;
Kass, R;
Lee, J;
Malchow, R;
Morrow, F;
Skovpen, Y;
Sung, M;
White, C;
Whitmore, J;
Wilson, P;
Butler, F;
Fu, X;
Kalbfleisch, G;
Lambrecht, M;
Ross, WR;
Skubic, P;
Snow, J;
Wang, PL;
Wood, M;
Bortoletto, D;
Brown, DN;
Fast, J;
McIlwain, RL;
Miao, T;
Miller, DH;
Modesitt, M;
Schaffner, SF;
Shibata, EI;
Shipsey, IPJ;
Wang, PN;
Battle, M;
Ernst, J;
Kroha, H;
Roberts, S;
Sparks, K;
Thorndike, EH;
Wang, CH;
Dominick, J;
Sanghera, S;
Skwarnicki, T;
Stroynowski, R;
Artuso, M;
He, D;
Goldberg, M;
Horwitz, N;
Kennett, R;
Moneti, GC;
Muheim, F;
Mukhin, Y;
Playfer, S;
Rozen, Y;
Stone, S;
Thulasidas, M;
Vasseur, G;
Zhu, G;
Bartelt, J;
Csorna, SE;
Egyed, Z;
Jain, V;
Sheldon, P;
Akerib, DS;
Barish, B;
Chadha, M;
Chan, S;
Cowen, DF;
Eigen, G;
Miller, JS;
O’Grady, C;
Urheim, J;
Weinstein, AJ;
Acosta, D;
Athanas, M;
Masek, G;
Ong, B;
Paar, H;
Sivertz, M;
Bean, A;
Gronberg, J;
Kutschke, R;
Menary, S;
Morrison, RJ;
Nakanishi, S;
Nelson, HN;
Nelson, TK;
Richman, JD;
Ryd, A;
Tajima, H;
Schmidt, D;
Sperka, D;
Witherell, MS;
Procario, M;
Yang, S;
Balest, R;
Cho, K;
Daoudi, M;
Ford, WT;
Johnson, DR;
Lingel, K;
Lohner, M;
Rankin, P;
Smith, JG;
Alexander, JP;
Bebek, C;
Berkelman, K;
Besson, D;
Browder, TE;
Cassel, DG;
Cho, HA;
Coffman, DM;
Drell, PS;
Ehrlich, R;
Garcia-Sciveres, M;
Geiser, B;
Gittelman, B;
Gray, SW;
Hartill, DL;
Heltsley, BK;
Jones, CD;
Jones, SL;
Kandaswamy, J;
Katayama, N;
Kim, PC;
Kreinick, DL;
Ludwig, GS;
Masui, J;
Mevissen, J;
Mistry, NB;
Ng, CR;
Nordberg, E;
Ogg, M;
Patterson, JR;
Peterson, D;
Riley, D;
Salman, S;
Sapper, M;
Worden, H;
Würthwein, F;
Avery, P;
Freyberger, A;
Rodriguez, J;
Stephens, R;
Yelton, J;
Cinabro, D;
Henderson, S;
Kinoshita, K;
Liu, T;
Saulnier, M;
Shen, F;
Wilson, R;
Yamamoto, H

et al.

Published Web Location

https://doi.org/10.1103/physrevlett.71.1973

Creative Commons 'BY' version 4.0 license

Abstract

Using data from CLEO II at the Cornell Electron Storage Ring we provide a new measurement of the branching fraction for D0→π+π-, and we present the first measurements of D0→π0π0 and of D+→π+π0, which is due to an isospin changing ΔI=3/2 transition. From these data we extract the ratio of isospin amplitudes ‖A2/A0‖, and the cosine of the relative phase δ=δ2-δ0 between these amplitudes, for D→ππ decays. Unlike the situation in kaon decay where A2 is strongly suppressed, we find ‖A2/A0‖=0.72±0.13±0.11 and cosδ=0.14±0.13±0.09.

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Measurement of the D→ππ branching fractions

Published Web Location