Mass limits for scalar muons, scalar electrons, and winos from e +e − collisions near √ = 91 GeV

We have searched for scalar muons μ , scalar electrons ẽ, and winos W̃ from the reactions e + e − → e ̃ + e ̃ −, μ + μ −, W ̃ + W ̃ − at √s ∼ 91 GeV with an integrated luminosity of 157 nb −1. We have searched for μ + μ −, e +e −, or e− μ final states with missing transverse momentum P T > 6 GeV....

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Bibliographic Details
Published in:Physics letters. B 1989-12, Vol.233 (3), p.530-537
Main Authors: Adriani, O., Anderhub, H., Andersson, A.L., Antonov, L., Aziz, T., Bao, J., Barone, L., Biland, A., Bizzarri, R., Bocciolini, M., Böhringer, T., Brock, I.C., Capell, M., Carbonara, F., Carminati, F., Cerrada, M., Cesaroni, F., Chaturvedi, U.K., Chen, H.S., Chen, H.F., Coignet, G., D'Allessandro, R., Dionisi, C., Dittus, F., Driever, T., Fabbretti, R., Fehlmann, J., Fernandez, G., Fesefeldt, H., Freudenreich, K., Friebel, W., Gettner, M., Gonzalez, E., Grimes, A., Güsewell, D., Hancke, S., Heavey, A., Herten, U., Hervé, A., Hsu, L.S., Hu, G.Q., Ille, B., Karpinski, W., Karyotakis, Y., Khoze, V., Klok, P.F., Koller, M., Krastev, V.R., Kumar, V., Lanius, K., Lanske, D., Lebrun, P., Li, X.G., Liu, Y., Lue, X., Magahiz, R., Meinholz, Th, Merola, L., Mi, Y., Mir, Y., Morganti, S., Mount, R., Niessen, L., Onvlee, J., Ossmann, J., Patricelli, S., Pieri, M., Pieri, V., Pohl, M., Pols, C.L.A., Qian, J.M., Qureshi, K.N., Raghavan, R., Razis, P., Röhner, M., Rosier-Lees, S., Rosselet, Ph, Savin, A., Schultz Von Dratzig, A., Schultze, K., Sciacca, C., Siedling, R., Stöhr, B., Stone, H., Sudhakar, K., Tarkovsky, E., Timmermans, C., Tonutti, M., Tung, K.L., Van der Graaf, H., Walk, W., Wang, G.H., White, M., Wu, S.X., Yang, Q.Y., Ye, Q., Yeh, S.C., Yin, Z.W., Zabounidis, C., Zichichi, A.
Format: Article
Language:English
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Summary:We have searched for scalar muons μ , scalar electrons ẽ, and winos W̃ from the reactions e + e − → e ̃ + e ̃ −, μ + μ −, W ̃ + W ̃ − at √s ∼ 91 GeV with an integrated luminosity of 157 nb −1. We have searched for μ + μ −, e +e −, or e− μ final states with missing transverse momentum P T > 6 GeV. These final states are signatures for the production of ẽ, μ , and W̃. We found no events. Our results are M μ > 41 GeV, M e ̃ > 41 GeV, and M W ̃ > 44 GeV at the 95% confidence level.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(89)91353-1