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Observation of a new charmed baryon

Albrecht, H. et al. (1993) Observation of a new charmed baryon. Physics Letters B, 317 (1-2). pp. 227-232. ISSN 0370-2693 (doi:10.1016/0370-2693(93)91598-H)

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Abstract

Using the ARGUS detector at the e+e storage ring DORIS II at DESY, we have observed a new charmed baryon state in the channel Λc+π+π. (All references to a specific charged state also imply the charge conjugate state.) The mass of this state was measured to be (2626.6 ± 0.5 ± 1.5) MeV/c2. The product of the production cross section and branching ratio for this channel was determined to be (11.5 ± 2.5 ± 3.0) pb, and the natural width estimated to be smaller than 3.2 MeV/c2 at 90% CL.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s):Britton, Prof David
Authors: Albrecht, H., Ehrlichmann, H., Hamacher, T., Hofmann, R.P., Kirchhoff, T., Nau, A., Nowak, S., Schröder, H., Schulz, H.D., Walter, M., Wurth, R., Hast, C., Kapitza, H., Kolanoski, H., Kosche, A., Lange, A., Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Töpfer, D., Wegener, D., Bittner, M., Eckstein, P., Paulini, M., Reim, K., Wegener, H., Eckmann, R., Mundt, R., Oest, T., Reiner, R., Schmidt-Parzefall, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hüpper, A., Khan, S., Knöpfle, K.T., Seeger, M., Spengler, J., Britton, D.I., Charlesworth, C.E.K., Edwards, K.W., Hyatt, E.R.F., 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., Reβing, D., Schmidtler, M., Schneider, M., Schubert, K.R., Strahl, K., Waldi, R., Weseler, S., Kernel, G., Križan, P., Križnič, E., Podobnik, T., Živko, T., Balagura, V., Belyaev, I., Chechelnitsky, S., Danilov, M., Droutskoy, A., Gershtein, Yu., Golutvin, A., Korolko, I., Kostina, G., Litvintsev, D., Lubimov, V., Pakhlov, P., Semenov, S., Snizhko, A., Tichomirov, I., and Zaitsev, Yu.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physics Letters B
Publisher:Elsevier BV
ISSN:0370-2693
Published Online:25 July 2003

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