Observation of an excited charmed baryon decaying into Ξ_c⁰π⁺

Gibbons, L. et al. (1996) Observation of an excited charmed baryon decaying into Ξ_c⁰π⁺. Physical Review Letters, 77(5), pp. 810-813. (doi: 10.1103/PhysRevLett.77.810)

Abstract

Using data recorded by the CLEO II detector at the Cornell Electron Storage Ring, we report the first observation of an excited charmed baryon decaying into Ξ_c⁰π⁺. The state has mass difference M(Ξ_c⁰π⁺)-M(Ξ_c⁰) of 174.3±0.5±1.0MeV/c², and a width of <3.1MeV/c² (90% confidence level limit). We identify the new state as the Ξ_c^*+, the isospin partner of the recently discovered Ξ_c^*0.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Britton, Professor David
• Authors: Gibbons, L., Johnson, S., Kwon, Y., Roberts, S., Thorndike, E., Jessop, C., Lingel, K., Marsiske, H., Perl, M., Schaffner, S., Wang, R., Coan, T., Dominick, J., Fadeyev, V., Korolkov, I., Lambrecht, M., Sanghera, S., Shelkov, V., Stroynowski, R., Volobouev, I., Wei, G., Artuso, M., Efimov, A., Gao, M., Goldberg, M., He, D., Horwitz, N., Kopp, S., Moneti, G., Mountain, R., Mukhin, Y., Playfer, S., Skwarnicki, T., Stone, S., Xing, X., Bartelt, J., Csorna, S., Jain, V., Marka, S., Freyberger, A., Gibaut, D., Kinoshita, K., Pomianowski, P., Schrenk, S., Cinabro, D., Barish, B., Chadha, M., Chan, S., Eigen, G., Miller, J., O'Grady, C., Schmidtler, M., Urheim, J., Weinstein, A., Würthwein, F., Asner, D., Athanas, M., Bliss, D., Brower, W., Masek, G., Paar, H., Gronberg, J., Korte, C., Kutschke, R., Menary, S., Morrison, R., Nakanishi, S., Nelson, H., Nelson, T., Qiao, C., Richman, J., Roberts, D., Ryd, A., Tajima, H., Witherell, M., Balest, R., Cho, K., Ford, W., Lohner, M., Park, H., Rankin, P., Roy, J., Smith, J., Alexander, J., Bebek, C., Berger, B., Berkelman, K., Bloom, K., Cassel, D., Cho, H., Coffman, D., Crowcroft, D., Dickson, M., Drell, P., Dumas, D., Ehrlich, R., Elia, R., Gaidarev, P., Gittelman, B., Gray, S., Hartill, D., Heltsley, B., Jones, C., Jones, S., Kandaswamy, J., Katayama, N., Kim, P., Kreinick, D., Lee, T., Liu, Y., Ludwig, G., Masui, J., Mevissen, J., Mistry, N., Ng, C., Nordberg, E., Patterson, J., Peterson, D., Riley, D., Soffer, A., Ward, C., Avery, P., Prescott, C., Yang, S., Yelton, J., Brandenburg, G., Briere, R., Liu, T., Saulnier, M., Wilson, R., Yamamoto, H., Browder, T., Li, F., Rodriguez, J., Bergfeld, T., Eisenstein, B., Ernst, J., Gladding, G., Gollin, G., Palmer, M., Selen, M., Thaler, J., Edwards, K., McLean, K., Ogg, M., Bellerive, A., Britton, D., Janicek, R., MacFarlane, D., Patel, P., Spaan, B., Sadoff, A., 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., Nelson, J., Patton, S., Poling, R., Riehle, T., Savinov, V., Alam, M., Kim, I., Ling, Z., Mahmood, A., O'Neill, J., Severini, H., Sun, C., Timm, S., Wappler, F., Duboscq, J., Fulton, R., Fujino, D., Gan, K., Honscheid, K., Kagan, H., Kass, R., Lee, J., Sung, M., Undrus, A., White, C., Wanke, R., Wolf, A., Zoeller, M., Fu, X., Nemati, B., Richichi, S., Ross, W., Skubic, P., Wood, M., Bishai, M., Fast, J., Gerndt, E., Hinson, J., Miao, T., Miller, D., Modesitt, M., Shibata, E., Shipsey, I., and Wang, P.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review Letters
• Publisher: American Physical Society
• ISSN: 0031-9007