Kaya, M.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.2022-04-282022-04-282003-04-10Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 558, n. 1-2, p. 34-40, 2003.0370-2693http://hdl.handle.net/11449/224306The 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.34-40engArtigo10.1016/S0370-2693(03)00246-62-s2.0-0037430922