학술논문

A measurement ofD meson production inZ0 hadronic decays
Document Type
Article
Author
Abreu, P.Adam, W.Adye, T.Agasi, E.Ajinenko, I.Aleksan, R.Alekseev, G. D.Algeri, A.Allen, P.Almehed, A.Alvsvaag, S. J.Amaldi, U.Andreazza, A.Antilogus, P.Apel, W. -D.Apsimon, R. J.Arnoud, Y.Åsman, B.Augustin, J. -E.Augustinus, A.Baillon, P.Bambade, P.Barao, F.Barate, R.Barbiellini, G.Bardin, D. Y.Barker, G. J.Baroncelli, A.Barring, O.Barrio, J. A.Bartl, W.Bates, M. J.Battaglia, M.Baubillier, M.Becks, K. -H.Beeston, C. J.Begalli, M.Beilliere, P.Belokopyptov, Yu.Beltran, P.Benedic, D.Benvenuti, A. C.Berggren, M.Bertrand, D.Bianchi, F.Bilenky, M. S.Billoir, P.Bjarne, J.Bloch, D.Blyth, S.Bocci, V.Bogolubov, P. N.Bolognese, T.Bonesini, M.Bonivento, W.Booth, P. S. L.Borisov, G.Borner, H.Bosio, C.Bostjancic, B.Bosworth, S.Botner, O.Bouquet, B.Bourdarios, C.Bowcock, T. J. V.Bozzo, M.Braibant, S.Branchini, P.Brand, K. D.Brenner, R. A.Briand, H.Bricman, C.Brown, R. C. A.Brummer, N.Brunet, J. -M.Bugge, L.Buran, T.Burmeister, H.Buytaert, J. A. M. A.Caccia, M.Calvi, M.Camacho Rozas, A. J.Campion, R.Camporesi, T.Canale, V.Cao, F.Carena, F.Carroll, L.Castillo Gimenez, M. V.Cattai, A.Cavallo, F. R.Cerrito, L.Chabaud, V.Chan, A.Chapkin, M.Charpentier, Ph.Chaussard, L.Chauveau, J.Checchia, P.Chelkov, G. A.Chevalier, L.Chliapnikov, P.Chorowicz, V.Chrin, J. T. M.Collins, P.Contreras, J. L.Contri, R.Cortina, E.Cosme, G.Couchot, F.Crawley, H. B.Crennell, D.Crosetti, G.Crozon, M.Cuevas Maestro, J.Czellar, S.Dahl-Jensen, E.Dalmagne, B.Dam, M.Damgaard, G.Darbo, D.Daubie, E.Daum, A.Dauncey, P. D.Davenport, M.Davies, P.De Silva, W.Defoix, C.Delpierre, P.Demaria, N.De Angelis, A.De Boeck, H.De Boer, W.De Clerq, C.De Fez Laso, M. D. M.De Groot, N.De La Vaissiere, C.De Lotto, B.De Min, A.Dijkstra, H.Di Ciaccio, L.Dolbeau, J.Donszelmann, M.Doroba, K.Dracos, M.Drees, J.Dris, M.Dufour, Y.Dupont, F.Edsall, D.Eek, L. -O.Eerola, P. A. -M.Ehret, R.Ekelof, T.Ekspong, G.Elliot Peisert, A.Engel, J. -P.Ershaidat, N.Fassouliotis, D.Feindt, M.Fenyuk, A.Fernandez Alonso, M.Ferrer, A.Filippas, T. A.Firestone, A.Foeth, H.Fokitis, E.Fontanelli, F.Forbes, K. A. J.Fousset, J. -L.Francon, S.Franek, B.Frenkiel, P.Fries, D. C.Frodesen, A. G.Fruhwirth, R.Fulda-Quenzer, F.Furnival, K.Furstenau, H.Fuster, J.Gamba, D.Garcia, C.Garcia, J.Gaspar, C.Gasparini, U.Gavillet, Ph.Gazis, E. N.Gerber, J. -P.Giacomelli, P.Gokieli, R.Golob, B.Golovatyuk, V. M.Gomez Y Cadenas, J. J.Gopal, G.Gorski, M.Gracco, V.Grant, A.Grard, F.Graziani, E.Grosdidier, G.Gross, E.Grosse-Wiesmann, P.Grossetete, B.Guy, J.Haedinger, U.Hahn, F.Hahn, M.Haider, S.Hajduk, Z.Hakansson, A.Hallgren, A.Hamacher, K.Hamel De Monchenault, G.Hao, W.Harris, F. J.Hedberg, V.Henkes, T.Hernandez, J. J.Herquet, P.Herr, H.Hessing, T. L.Hietanen, I.Higgins, C. O.Higon, E.Hilke, H. J.Hodgson, S. D.Hofmokl, T.Holmes, R.Holmgren, S. -O.Holthuizen, D.Honore, P. F.Hooper, J. E.Houlden, M.Hrubec, J.Huet, K.Hulth, P. O.Hultqvist, K.Ioannou, P.Iversen, P. -S.Jackson, J. N.Jalocha, P.Jarlskog, G.Jarry, P.Jean-Marie, B.Johansson, E. K.Johnson, D.Jonker, M.Jonsson, L.Juillot, P.Kalkanis, G.Kalmus, G.Kapusta, F.Karlsson, M.Karvelas, E.Katsanevas, S.Katsoufis, E. C.Keranen, R.Kesteman, J.Khomenko, B. A.Khovanski, N. N.King, B.Kjaer, N. J.Klein, H.Klovning, A.Kluit, P.Koch-Mehrin, A.Köhne, J. H.Koene, B.Kokkinias, P.Koratzinos, M.Korcyl, K.Korytov, A. V.Kostioukhine, V.Kourkoumelis, C.Kouznetsov, O.Kramer, P. H.Krolikowski, J.Kronkvist, I.Kruener-Marquis, U.Kucewicz, W.Kulka, K.Kurvinen, K.Lacasta, C.Lambropoulos, C.Lamsa, J. W.Lanceri, L.Lapin, V.Laugier, J. -P.Lauhakangas, R.Leder, G.Ledroit, F.Leitner, R.Lemoigne, Y.Lemonne, J.Lenzen, G.Lepeltier, V.Lesiak, T.Levy, J. M.Lieb, E.Liko, D.Lindgren, J.Lindner, R.Lipniacka, A.Lippi, I.Loerstad, B.Lokajicek, M.Loken, J. G.Lopez-Fernandez, A.Lopez Aguera, M. A.Los, M.Loukas, D.Lozano, J. J.Lutz, P.Lyons, L.Maehlum, G.Maillard, J.Miao, A.Maltezos, A.Mandl, F.Marco, J.Margoni, M.Marin, J. -C.Markou, A.Maron, T.Marti, S.Mathis, L.Matorras, F.Matteuzzi, C.Matthiae, G.Mazzucato, M.Mc Cubbin, M.Mc Kay, R.Mc Nulty, R.Meola, G.Meroni, C.Meyer, W. T.Michelotto, M.Mikulec, I.Mirabito, L.Mitaroff, W. A.Mitselmakher, G. V.Mjoernmark, U.Moa, T.Moeller, R.Moenig, K.Monge, M. R.Morettini, P.Mueller, H.Murray, W. J.Myatt, G.Navarria, F. L.Negri, P.Nicolaidou, R.Nielsen, B. S.Nijjhar, B.Nikolaenko, V.Nilsen, P. E. S.Niss, P.Nomerotski, A.Obraztsov, V.Olshevski, A. G.Orava, R.Ostankov, A.Osterberg, K.Ouraou, A.Paganoni, M.Pain, R.Palka, H.Papadopoulou, Th. D.Pape, L.Parodi, F.Passeri, A.Pegoraro, M.Pennanen, J.Peralta, L.Pernegger, H.Pernicka, M.Perrotta, A.Petridou, C.Petrolini, A.Pierre, F.Pimenta, M.Pingot, O.Plaszcznski, S.Podobrin, O.Pol, M. E.Polok, G.Poropat, P.Pozdniakov, V.Privitera, P.Pullia, A.Radojicic, D.Ragazzi, S.Rahmani, H.Ratoff, P. N.Read, A. L.Rebecchi, P.Redaelli, N. G.Regler, M.Reid, D.Renton, P. B.Resvanis, L. K.Richard, F.Richardson, M.Ridky, J.Rinaudo, G.Roditi, I.Romero, A.Roncagliolo, I.Ronchese, P.Ronnqvist, C.Rosenberg, E. I.Rossi, S.Rosso, E.Roudeau, P.Rovelli, T.Ruckstuhl, W.Ruhlmann-Kleider, V.Ruiz, A.Saarikko, H.Sacquin, Y.Sajot, G.Salt, J.Sanchez, J.Sannino, M.Schael, S.Schneider, H.Schyns, M. A. E.Sciolla, G.Scuri, F.Segar, A. M.Seitz, A.Sekulin, R.Sessa, M.Sette, G.Seufert, R.Shellard, R. C.Siccama, I.Siegrist, P.Simonetti, S.Simonetto, F.Sisakian, A. N.Skjevling, G.Smadja, G.Smirnova, O.Smith, G. R.Rosnowski, R.Souza-Santos, D.Spassoff, T. S.Spiriti, E.Squarcia, S.Staeck, H.Stanescu, C.Stapnes, S.Stavropoulos, G.Stichelbaut, F.Stocchi, A.Strauss, J.Straver, J.Strub, R.Stugu, B.Szczekowski, M.Szeptycka, M.Szymanski, P.Tabarelli, T.Tchikilev, O.Theodosiou, G. E.Tilquin, A.Timmermans, J.Timofeev, V. G.Tkatchev, L. G.Todorov, T.Toet, D. Z.Toker, O.Tome, B.Torassa, E.Tortora, L.Trielle, D.Trevisan, U.Trischuk, W.Tristram, G.Troncon, C.Tsirou, A.Tsyganov, E. N.Turluer, M. -L.Tuuva, T.Tyapkin, I. A.Tyndel, M.Tzamarias, S.Ueberschaer, S.Ullaland, O.Uvarov, V.Valenti, G.Vallazza, E.Valls Ferrer, J. A.Vander Velde, C.Van Apeldoorn, G. W.Van Dam, P.Van Der Heijden, M.Van Doninck, W. K.Vaz, P.Vegni, G.Ventura, L.Venus, W.Verbeure, F.Verlato, M.Vertogradov, L. S.Vilanova, D.Vincent, P.Vitale, L.Vlasov, E.Vodopyanov, A. S.Vollmer, M.Voutilainen, M.Vrba, V.Wahlen, H.Walck, C.Waldner, F.Wayne, M.Wehr, A.Weierstall, M.Weilhammer, P.Werner, J.Wetherell, A. M.Wickens, J. H.Wilkinson, G. R.Williams, W. S. C.Winter, M.Witek, M.Wormser, G.Woschnagg, K.Yamdagni, N.Yepes, P.Zaitsev, A.Zalewska, A.Zalewski, P.Zavrtanik, D.Zevgolatakos, E.Zhang, G.Zimin, N. I.Zito, M.Zuberi, R.Zukanovich Funchal, R.Zumerle, G.Zuniga, J.
Source
Zeitschrift für Physik C Particles and Fields; December 1993, Vol. 59 Issue: 4 p533-545, 13p
Subject
Language
ISSN
01709739; 14315858
Abstract
A study of the fragmentation properties of charm and bottom quarks intoD mesons is presented. From 263 700Z0 hadronic decays collected in 1991 with the DELPHI detector at the LEP collider,D0,D+ andD*+ are reconstructed in the modesK-p+,K-p+K+ andD0p+ followed byD0?K-p+, respectively. The fractional decay widths  $$\Gamma {{(Z^0 \to {D \mathord{\left/ {\vphantom {D {\bar D}}} \right. \kern-\nulldelimiterspace} {\bar D}}X)} \mathord{\left/ {\vphantom {{(Z^0 \to {D \mathord{\left/ {\vphantom {D {\bar D}}} \right. \kern-\nulldelimiterspace} {\bar D}}X)} {\Gamma _h }}} \right. \kern-\nulldelimiterspace} {\Gamma _h }}$$ are determined, and first results are presented for the production ofD mesons from  $$c\bar c$$ and  $$b\bar b$$ events separately. The average energy fraction ofD in charm quark fragmentation is found to be E(D*)>c=0.487±0.015 (stat)±0.005 (sys.). Assuming that the fraction ofDs and charm-baryons produced at LEP is similar to that around 10 GeV, theZ0 partial width into charm quark pairs is determined to beGc/Gh=0.187±0.031 (stat)±0.023 (sys). The probability for ab quark to fragment into  $$\bar B_s $$ orb-baryons is inferred to be 0.268±0.094 (stat)±0.100 (sys) from the measured probability that it fragments into a  $$\bar B^0 $$ orB-.