1. A partial wave analysis of the decay $D^0 \to K_S^0 \pi^+\pi^−$
- Author
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Albrecht, H., Ehrlichmann, H., Hamacher, T., Hofmann, R. P., Kirchhoff, T., Nau, A., Nowak, S., Schröder, H., Schulz, H. D., Walter, M., Wurth, R., Appuhn, R. D., Hast, C., Kolanoski, H., Lange, A., Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Töpfer, D., Walther, A., Wegener, D., Paulini, M., Reim, K., Wegener, H., Mundt, R., Oest, T., Reiner, R., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hüpper, A., Khan, S., Knöpfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Krieger, P., MacFarlane, D. B., Patel, P. M., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., Van de Water, R. G., Yoon, T.-S., Reßing, D., Schmidtler, M., Schneider, M., Schubert, K. R., Strahl, K., Tamminga, J., Waldi, R., Weseler, S., Kernel, G., Križan, P., Križnič, E., Podobnik, T., Živko, T., Balagura, V., Belyaev, I., Danilov, M., Droutskoy, A., Golutvin, A., Gorelov, I., Kostina, G., Lubimov, V., Murat, P., Pakhlov, P., Ratnikov, F., Semenov, S., Shibaev, V., Soloshenko, V., Tichomirov, I., Zaitsev, Yu., and ARGUS Collaboration
- Subjects
K*0(1430) ,annihilation: electron positron ,ARGUS ,Dalitz plot ,+f0%28980%29+anti-K0%22">D0 --> f0(980) anti-K0 ,D*(2010): electroproduction ,S032.17 ,annihilation [electron positron] ,nonleptonic decay: D*(2010) ,+f2%281270%29+anti-K0%22">D0 --> f2(1270) anti-K0 ,approx. 10 GeV-cms ,electron positron [colliding beams] ,nonleptonic decay [D*(2010)] ,S032.3 ,nonleptonic decay: D0 ,+K0%28S%29+pi%2B+pi%22">D0 --> K0(S) pi+ pi ,S032.81 ,+K*2%281430%29+pi%2B%22">D0 --> K*2(1430) pi+ ,electron positron: colliding beams ,D*(2010): nonleptonic decay ,electroproduction [D*(2010)] ,electroproduction: D*(2010) ,D*(2010) [cascade decay] ,f0(1400) ,S032.199 ,cascade decay: D*(2010) ,D*(2010) [nonleptonic decay] ,+f0%281400%29+anti-K0%22">D0 --> f0(1400) anti-K0 ,colliding beams [electron positron] ,D*(2010): cascade decay ,cascade decay [D*(2010)] ,nonleptonic decay [D0] ,DESY DORIS Stor ,+K*0%281430%29+pi%2B%22">D0 --> K*0(1430) pi+ ,f0(980) ,electron positron: annihilation ,D0: branching ratio ,D*(2010) [electroproduction] ,branching ratio [D0] ,S032.201 ,S032.200 ,D0 [nonleptonic decay] ,S032.203 ,ddc:530 ,K*2(1430) ,electron positron [annihilation] ,D0: nonleptonic decay ,+D0+pi%2B%22">D*(2010) --> D0 pi+ ,partial wave analysis ,f2(1270) ,colliding beams: electron positron ,experimental results - Abstract
13 pp. (1993)., Using the ARGUS detector at the DORIS-II electron-positron storage ring at DESY, we have investigated the exclusive decay $D∗+→ D^0 π^+, D^0→ K_S^0 π^+π^−$. From a partial wave analysis of the $K_S^0 π+^π^−$ system we find that (71.8± 4.2 ± 3.0)% are $D^0→ K∗^−π^+$ and (22.7 ± 3.2 ± 0.9)% are $D^0→K^0_ϱ 0$ with a relative phase of (−137 ± 7 ± 3)° between the channels. The remaining fraction can be described by several channels involving excited resonances, but not by a three-body phase space decay, thus giving first evidence for D0 decays into $K^0_∗(1430)^−π^+,K^0f^0(1975), K^0f^2(1270), and K^0f^0(1400)$.
- Published
- 1993
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