Production asymmetry of Ds from 600 GeV/c σ- and π- beam

• Main Author: Kaya, M.
• Publication Date: 2003
• Other Authors: Alkhazov, G., Atamantchouk, A. G., Balatz, M. Y., Bondar, N. F., Cooper, P. S., Dauwe, L. J., Davidenko, G. V., Dersch, U., Dolgolenko, A. G., Dzyubenko, G. B., Edelstein, R., Emediato, L., Endler, A. M.F., Engelfried, J., Eschrich, I., Escobar, C. O., Evdokimov, A. V., Filimonov, I. S., Garcia, F. G., Gaspero, M., Giller, I., Golovtsov, V. L., Gouffon, P., Gülmez, E., He, K., Iori, M., Jun, S. Y., Kilmer, J., Kim, V. T., Kochenda, L. M., Konorov, I., Kozhevnikov, A. P., Krivshich, A. G., Krüger, H., Kubantsev, M. A., Kubarovsky, V. P., Kulyavtsev, A. I., Kuropatkin, N. P., Kurshetsov, V. F., Kushnirenko, A., Kwan, S., Lach, J., Lamberto, A., Landsberg, L. G., Larin, I., Leikin, E. M., Li, Y., Luksys, M., Lungov, T. [UNESP], Maleev, V. P., Mao, D., Mao, C., Mao, Z., Mathew, P., Mattson, M., Matveev, V., McCliment, E., Moinester, M. A., Molchanov, V. V., Morelos, A., Nelson, K. D., Nemitkin, A. V., Neoustroev, P. V., Newsom, C., Nilov, A. P., Nurushev, S. B., Ocherashvili, A., Onel, Y., Ozel, E., Ozkorucuklu, S., Penzo, A., Petrenko, S. V., Pogodin, P., Procario, M., Prutskoi, V. A., Ramberg, E., Rappazzo, G. F., Razmyslovich, B. V., Rud, V. I., Russ, J., Schiavon, P., Simon, J., Sitnikov, A. I., Skow, D., Smith, V. J., Srivastava, M., Steiner, V., Stepanov, V., Stutte, L., Svoiski, M., Terentyev, N. K., Thomas, G. P., Uvarov, L. N., Vasiliev, A. N., Vavilov, D. V., Verebryusov, V. S., Victorov, V. A., Vishnyakov, V. E., Vorobyov, A. A., Vorwalter, K., You, J., Zhao, W., Zheng, S., Zukanovich-Funchal, R.
• Format: Article
• Language: eng
• Source: Repositório Institucional da UNESP
• Download full: http://dx.doi.org/10.1016/S0370-2693(03)00246-6; http://hdl.handle.net/11449/224306

The production of Ds- relative to Ds+ as a function of xF with 600 GeV/c Σ- beam is measured in the interval 0.15 < xF < 0.7 by the SELEX (E781) experiment at Fermilab. The integrated charge asymmetries with 600 GeV/c Σ- beam (0.53 ± 0.06) and π- beam (0.06 ± 0.11) are also compared. The results show the Σ- beam fragments play a role in the production of Ds-, as suggested by the leading quark model. © 2003 Elsevier Science B.V. All rights reserved.