Measurement of the {ital D}{sup +}{sub {ital s}}{r_arrow}{eta}l{sup +}{nu} and {ital D}{sup +}{sub {ital s}}{r_arrow}{eta}{prime}l{sup +}{nu} branching ratios

Journal Article · Mon Nov 20 00:00:00 EST 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.75.3804· OSTI ID:151402

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; Duboscq, J E; 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 E; Dominick, J; Fadeyev, V; Korolkov, I; Lambrecht, M; Sanghera, S; Shelkov, V; Skwarnicki, T; Stroynowski, R; Volobouev, I; Wei, G; Artuso, M; Gao, M; Goldberg, M; He, D; Horwitz, N; Kopp, S; Moneti, G C; Mountain, R; Muheim, F; Mukhin, Y; Playfer, S; Stone, S; Xing, X; Bartelt, J; Csorna, S E; Jain, V; Marka, S; Gibaut, D; Kinoshita, K; Pomianowski, P; Barish, B; Chadha, M; Chan, S; Cowen, D F; Eigen, G; Miller, J S; O`Grady, C; Urheim, J; Weinstein, A J; Wuerthwein, F; Asner, D M; Athanas, M; Bliss, D W; Brower, W S; Masek, G; Paar, H P; 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

Using the CLEO II detector we measure {ital B}({ital D}{sup +}{sub {ital s}}{r_arrow}{eta}{ital e}{sup +}{nu})/{ital B}({ital D}{sup +}{sub {ital s}}{r_arrow}{phi}{ital e}{sup +}{nu}) =1.24{plus_minus}0.12{plus_minus}0.15, {ital B}({ital D}{sup +}{sub {ital s}}{r_arrow}{eta}{prime}{ital e}{sup +}{nu})/{ital B} ({ital D}{sup +}{sub {ital s}}{r_arrow}{phi}{ital e}{sup +}{nu})=0.43{plus_minus}0.11{plus_minus}0.07, and {ital B}({ital D}{sup +}{sub {ital s}}{r_arrow}{eta}{prime}{ital e}{sup +}{nu})/{ital B} ({ital D}{sup +}{sub {ital s}}{r_arrow}{eta}{ital e}{sup +}{nu})=0.35{plus_minus}0.09{plus_minus}0.07. We find the ratio of vector to pseudoscalar final states, {ital B}{bold (}{ital D}{sup +}{sub {ital s}}{r_arrow}{phi}{ital e}{sup +}{nu})/{ital B} ({ital D}{sup +}{sub {ital s}}{r_arrow}({eta}+{eta}{prime}){ital e}{sup +}{nu}{bold )}=0.60{plus_minus}0.06{plus_minus}0.06, which is similar to the ratio found in nonstrange {ital D} decays. {copyright} {ital 1995} {ital The} {ital American} {ital Physical} {ital Society}.

• OSTI ID: 151402
• Journal Information: Physical Review Letters, Vol. 75, Issue 21; Other Information: PBD: 20 Nov 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
D S MESONS
SEMILEPTONIC DECAY
BRANCHING RATIO
ETA MESONS
NEUTRINOS
POSITRONS
PSEUDOSCALAR MESONS
VECTOR FIELDS