D MESON BRANCHING RATIOS AND HADRONIC CHARM PRODUCTION CROSS-SECTIONS

A determination of branching ratios for D meson decays into all charged particle final states is reported. The values obtained: (D± → K∓π±π±/all D±) = (14 ± 6)% and (D0/D0 → K±π∓π+π-/all D0/D0) = (10 ± 4)%, are higher than those currently accepted. This result, if confirmed, implies a corresponding reduction in the accepted values for some total cross section measurements. Revised inclusive cross sections for D meson production in the forward hemisphere in π-p and pp interactions at 360 GeV/c, are presented. © 1984.0SCOPUS: ar.jinfo:eu-repo/semantics/publishe

LIFETIME MEASUREMENT OF LAMBDA-C

none121We report on the Λc properties observed with the LEBC-EHS set-up at CERN SPS with 360 GeV/c π- and 400GeV/c p beams. The lifetime is (1.2−0.3+0.5)×10−13 s and the mass (2284.7±2.3±0.5.M. Aguilar-Benitez;W.W.M. Allison;J.L. Bailly;W. Bartl;M. Begalli;P. Beillière;R. Bizzarri;H. Briand;R. Brun;V. Canale;C. Caso;E. Castelli;P. Checchia;P.V. Chliapnikov;N. Colino;S.J. Colwill;R. Contri;D. Crennell;M. Cresti;A. de Angelis;L. De Billy;C. Defoix;R. Di Marco;E. Di Capua;F. Diez-Hedo;J. Dolbeau;J. Duboc;J. Dumarchez;M. Eriksson;S. Falciano;C. Fernandez;C. Fisher;Yu.V. Fisyak;F. Fontanelli;J. Fry;U. Gasparini;U. Gensch;S. Gentile;D.B. Gibaut;A.T. Goshaw;A. Gurtu;R. Hamatsu;L. Haupt;S. Hellman;V. Henri;J.J. Hernandez;S.O. Holmgren;M. Houlden;J. Hrubec;P. Hughes;D. Huss;Y. Iga;M. Iori;E. Jegham;K.E. Johansson;M.I. Josa;M. Kalelkar;A.G. Kholodenko;E.P. Kistenev;S. Kitamura;D. Knauss;V.V. Kniazev;W. Kowald;D. Kuhn;J. Laberrigue;M. Laloum;P. Legros;H. Leutz;M. Macdermott;P. Mason;M. Mazzucato;M.E. Michalon-Mentzer;A. Michalon;T. Moa;R. Monge;L. Montanet;T. Naumann;G. Neuhofer;H.K. Nguyen;S. Nilsson;H. Nowak;N. Oshima;G. Otter;R. Ouared;J. Panella Comellas;G. Patel;M. Pernicka;P. Pilette;C. Pinori;G. Piredda;R. Plano;A. Poppleton;P. Poropat;R. Raghavan;S. Reucroft;K. Roberts;W.J. Robertson;H. Rohringer;J.M. Salicio;R. Schulte;B. Sellden;M. Sessa;S. Squarcia;P. Stamer;V.A. Stopchenko;A. Subramanian;K. Sudhakar;K. Takahashi;M.C. Touboul;U. Trevisan;C. Troncon;T. Tsurugai;L. Ventura;P. Vilain;E.V. Vlasov;C. Voltolini;B. Vonck;W.D. Walker;C.F. Wild;T.P. Yiou;G. ZumerleM., Aguilar Benitez; W. W. M., Allison; J. L., Bailly; W., Bartl; M., Begalli; P., Beillière; R., Bizzarri; H., Briand; R., Brun; V., Canale; Caso, Carlo; E., Castelli; P., Checchia; P. V., Chliapnikov; N., Colino; S. J., Colwill; Contri, Roberto; D., Crennell; M., Cresti; A., de Angelis; L., De Billy; C., Defoix; R., Di Marco; E., Di Capua; F., Diez Hedo; J., Dolbeau; J., Duboc; J., Dumarchez; M., Eriksson; S., Falciano; C., Fernandez; C., Fisher; Fisyak, Y. u. V.; Fontanelli, Flavio; J., Fry; U., Gasparini; U., Gensch; S., Gentile; D. B., Gibaut; A. T., Goshaw; A., Gurtu; R., Hamatsu; L., Haupt; S., Hellman; V., Henri; J. J., Hernandez; S. O., Holmgren; M., Houlden; J., Hrubec; P., Hughes; D., Huss; Y., Iga; M., Iori; E., Jegham; K. E., Johansson; M. I., Josa; M., Kalelkar; A. G., Kholodenko; E. P., Kistenev; S., Kitamura; D., Knauss; V. V., Kniazev; W., Kowald; D., Kuhn; J., Laberrigue; M., Laloum; P., Legros; H., Leutz; M., Macdermott; P., Mason; M., Mazzucato; M. E., Michalon Mentzer; A., Michalon; T., Moa; Monge, MARIA ROBERTA; L., Montanet; T., Naumann; G., Neuhofer; H. K., Nguyen; S., Nilsson; H., Nowak; N., Oshima; G., Otter; R., Ouared; J., Panella Comellas; G., Patel; M., Pernicka; P., Pilette; C., Pinori; G., Piredda; R., Plano; A., Poppleton; P., Poropat; R., Raghavan; S., Reucroft; K., Roberts; W. J., Robertson; H., Rohringer; J. M., Salicio; R., Schulte; B., Sellden; M., Sessa; Squarcia, Sandro; P., Stamer; V. A., Stopchenko; A., Subramanian; K., Sudhakar; K., Takahashi; M. C., Touboul; Trevisan, Umberto; C., Troncon; T., Tsurugai; L., Ventura; P., Vilain; E. V., Vlasov; C., Voltolini; B., Vonck; W. D., Walker; C. F., Wild; T. P., Yiou; G., Zumerl