Masses, Lifetimes and Production Rates of Xi- and anti-Xi+ at LEP 1

Measurements of the Xi- and anti-Xi+ masses, mass differences, lifetimes and lifetime differences are presented. The anti-Xi+ sample used is much larger than those used previously for such measurements. In addition, the Xi production rates in Z -> b anti-b and Z -> q anti-q events are compared...

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Bibliographic Details
Published in:Physics letters. B 2006-06, Vol.639, p.179-191
Main Authors: Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., Alemany-Fernandez, R., Allmendinger, T., Allport, P.P., Amaldi, U., Amapane, N., Amato, S., Anashkin, E., Andreazza, A., Andringa, S., Anjos, N., Antilogus, P., Apel, W.D., Arnoud, Y., Ask, S., Åsman, B., Augustin, J.E., Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barbier, R., Bardin, D., Barker, G.J., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Ben-Haim, E., Benekos, N., Benvenuti, A., Bérat, C., Berggren, M., Berntzon, L., Bertrand, D., Besançon, M., Besson, N., Bloch, D., Blom, M., Bluj, M., Bonesini, M., Boonekamp, M., Booth, P. S. L., Borisov, G., Botner, O., Bouquet, B., Bowcock, T. J. V., Boyko, I., Bracko, M., Brenner, R., Brodet, E., Brückman, P., Brunet, J.M., Buschbeck, B., Buschmann, P., Calvi, M., Camporesi, T., Canale, V., Carena, F., Castro, N., Cavallo, F., Chapkin, M., Charpentier, P., Checchia, P., Chierici, R., Shlyapnikov, P., Chudoba, J., Chung, S.U., Cieslik, K., Collins, P., Contri, R., Cosme, G., Cossutti, F., Costa, M.J., Crennell, D.J., Cuevas-Maestro, J., D'Hondt, J., Dalmau, J., da Silva, T., da Silva, W., Della Ricca, G., de Angelis, A., de Boer, W., de Clercq, C., de Lotto, B., de Maria, N., De Min, A., de Paula, L., Di Ciaccio, L., Di Simone, A., Doroba, K., Drees, J., Eigen, G.
Format: Article
Language:English
Subjects:
High Energy Physics - Experiment
Physics
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Summary:Measurements of the Xi- and anti-Xi+ masses, mass differences, lifetimes and lifetime differences are presented. The anti-Xi+ sample used is much larger than those used previously for such measurements. In addition, the Xi production rates in Z -> b anti-b and Z -> q anti-q events are compared and the position xi* of the maximum of the xi distribution in Z -> q anti-q events is measured.
ISSN:0370-2693
DOI:10.1016/j.physletb.2006.06.029