Search for gluinos in decays of the χ b(1 3P 1) meson

• Published in: Physics letters. B Vol. 167; no. 3; pp. 360 - 364
• Main Authors: Albrecht, H., Binder, U., Harder, G., Lembke-Koppitz, I., Philipp, A., Schmidt-Parzefall, W., Schröder, H., Schulz, H.D., Wurth, R., Donker, J.P., Drescher, A., Matthiesen, U., Scheck, H., Spaan, B., Spengler, J., Wegener, D., Gabriel, J.C., Schubert, K.R., Stiewe, J., Waldi, R., Weseler, S., Brown, N.N., Edwards, K.W., Frisken, W.R., Fukunaga, Ch, Gilkinson, D.J., Gingrich, D.M., Goddard, M., Kapitza, H., Kim, P.C.H., Kutschke, P., Macfarlane, D.B., McKenna, J.A., McLean, K.W., Nilsson, A.W., Orr, R.S., Padley, P., Patel, P.M., Prentice, J.D., Seywerd, H.C.J., Stacey, B.J., Yoon, T.-S., Yun, J.C., Ammar, R., Coppage, D., Davis, R., Kanekal, S., Kwak, N., Kernel, G., Pleško, M., Jönsson, L., Oku, Y., Babaev, A., Danilov, M., Golutvin, A., Lubimov, V., Matveev, V., Nagovitsin, V., Ryltsov, V., Semenov, A., Shevchenko, V., Soloshenko, V., Sopov, V., Tichomirov, I., Zaitsev, Yu, Childers, R., Darden, C.W., Gennow, H.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 13.02.1986
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/0370-2693(86)90361-8

Using the ARGUS detector at the DORIS II e +e - storage ring, we have searched for gluinos ( g ), the supersymmetric partner of the gluon, by looking for secondary decay vertices in hadronic decays of χ b(1 3P 1) mesons. Events containing χ b(1 3P 1) states were selected by detecting the radiative transition from the ϒ (2S) in a data set corresponding to an integrated luminosity of 38.6 pb −1. The absence of secondary vertices from gluino decays into hadrons and a photino allows us to exclude gluinos in a mass range from 1 to 4.5 GeV/c 2 and a lifetime range from 10 −11 to 10 −9 s.