@article{3046840,
    title = "J/PSI-PRODUCTION IN THE HADRONIC DECAYS OF THE Z",
    author = "ABREU, P and ADAM, W and ADYE, T and AGASI, E and AJINENKO, I and and ALEKSAN, R and ALEKSEEV, GD and ALLPORT, PP and ALMEHED, S and ALMEIDA, and FML and ALVSVAAG, SJ and AMALDI, U and ANDREAZZA, A and ANTILOGUS, P and and APEL, WD and APSIMON, RJ and ARNOUD, Y and ASMAN, B and AUGUSTIN, JE and and AUGUSTINUS, A and BAILLON, P and BAMBADE, P and BARAO, F and BARATE, R and and BARBIELLINI, G and BARDIN, DY and BARKER, GJ and BARONCELLI, A and and BARRING, O and BARRIO, JA and BARTL, W and BATES, MJ and BATTAGLIA, M and and BAUBILLIER, M and BAUDOT, J and BECKS, KH and BEGALLI, M and and BEILLIERE, P and BELTRAN, P and BENVENUTI, AC and BERGGREN, M and and BERTRAND, D and BIANCHI, F and BIGI, M and BILENKY, MS and BILLOIR, P and and BJARNE, J and BLOCH, D and BLOCKI, J and BLYTH, S and BOCCI, V and and BOGOLUBOV, PN and BOLOGNESE, T and BONESINI, M and BONIVENTO, W and and BOOTH, PSL and BORISOV, G and BOSIO, C and BOSTJANCIC, B and BOSWORTH, S and and BOTNER, O and BOUQUET, B and BOURDARIOS, C and BOWCOCK, TJV and and BOZZO, M and BRAIBANT, S and BRANCHINI, P and BRAND, KD and BRENNER, RA and and BRIAND, H and BRICMAN, C and BRILLAULT, L and BROWN, RCA and and BRUCKMAN, P and BRUNET, JM and BUGGE, L and BURAN, T and BUYS, A and and BUYTAERT, JAMA and CACCIA, M and CALVI, M and ROZAS, AJC and CAMPION, R and and CAMPORESI, T and CANALE, V and CANKOCAK, K and CAO, F and CARENA, F and and CARRILHO, P and CARROLL, L and CASES, R and CASO, C and GIMENEZ, MVC and and CATTAI, A and CAVALLO, FR and CERRITO, L and CHABAUD, V and CHAN, A and and CHAPKIN, M and CHARPENTIER, P and CHAUSSARD, L and CHAUVEAU, J and and CHECCHIA, P and CHELKOV, GA and CHLIAPNIKOV, P and CHOROWICZ, V and and CHRIN, JTM and CINDRO, V and COLLINS, P and CONTRERAS, JL and CONTRI, R and and CORTINA, E and COSME, G and COUCHOT, F and CRAWLEY, HB and CRENNELL, and D and CROSETTI, G and MAESTRO, JC and CZELLAR, S and DAHLJENSEN, E and and DAHM, J and DALMAGNE, B and DAM, M and DAMGAARD, G and DAUBIE, E and and DAUM, A and DAUNCEY, PD and DAVENPORT, M and DAVIES, J and DASILVA, W and and DEFOIX, C and DELPIERRE, P and DEMARIA, N and DEANGELIS, A and and DEBOECK, H and DEBOER, W and DEBRABANDERE, S and DECLERCQ, C and LASO, and MDMD and DELAVAISSIERE, C and DELOTTO, B and DEMIN, A and DEPAULA, L and and DESAINTJEAN, C and DIJKSTRA, H and DICIACCIO, L and DJAMA, F and and DOLBEAU, J and DONSZELMANN, M and DOROBA, K and DRACOS, M and DREES, J and and DRIS, M and DUFOUR, Y and DUPONT, F and EDSALL, D and EHRET, R and and EKELOF, T and EKSPONG, G and ELSING, M and ENGEL, JP and ERSHAIDAT, N and and SANTO, ME and FASSOULIOTIS, D and FEINDT, M and FERRER, A and and FILIPPAS, TA and FIRESTONE, A and FOETH, H and FOKITIS, E and and FONTANELLI, F and FORMENTI, F and FOUSSET, JL and FRANEK, B and and FRENKIEL, P and FRIES, DC and FRODESEN, AG and FRUHWIRTH, R and and FULDAQUENZER, E and FURSTENAU, H and FUSTER, J and GAMBA, D and and GANDELMAN, M and GARCIA, C and GARCIA, J and GASPAR, C and GASPARINI, U and and GAVILLET, P and GAZIS, EN and GELE, D and GERBER, JP and GIACOMELLI, and P and GILLESPIE, D and GOKIELI, R and GOLOB, B and GOLOVATYUK, VM and and CADENAS, JJGY and GOPAL, G and GORN, L and GORSKI, M and GRACCO, V and and GRARD, F and GRAZIANI, E and GROSDIDIER, G and GUNNARSSON, P and GUY, J and and HAEDINGER, U and HAHN, F and HAHN, M and HAHN, S and HAIDER, S and and HAJDUK, Z and HAKANSSON, A and HALLGREN, A and HAMACHER, K and HAO, W and and HARRIS, FJ and HEDBERG, V and HENRIQUES, R and HERNANDEZ, JJ and and HERNANDO, JA and HERQUET, P and HERR, H and HESSING, TL and HIGON, E and and HILKE, HJ and HILL, TS and HOLMGREN, SO and HOLT, PJ and HOLTHUIZEN, D and and HONORE, PF and HOULDEN, M and HUET, K and HULTQVIST, K and IOANNOU, and P and IVERSEN, PS and JACKSON, JN and JACOBSSON, R and JALOCHA, P and and JARLSKOG, G and JARRY, P and JEANMARIE, B and JOHANSSON, EK and JONKER, and M and JONSSON, L and JUILLOT, P and KAISER, M and KALMUS, G and KAPUSTA, and F and KARLSSON, M and KARVELAS, E and KATARGIN, A and KATSANEVAS, S and and KATSOUFIS, EC and KERANEN, R and KHOMENKO, BA and KHOVANSKI, NN and and KING, B and KJAER, NJ and KLEIN, H and KLOVNING, A and KLUIT, P and and KOCHMEHRIN, A and KOEHNE, JH and KOENE, B and KOKKINIAS, P and and KORATZINOS, M and KORYTOV, AV and KOSTIOUKHINE, V and KOURKOUMELIS, C and and KOUZNETSOV, O and KRAMER, PH and KRAMMER, M and KREUTER, C and and KROLIKOWSKI, J and KRONKVIST, I and KRUPINSKI, W and KUCEWICZ, W and and KULKA, K and KURVINEN, K and LACASTA, C and LAKTINEH, I and and LAMBROPOULOS, C and LAMSA, JW and LANCERI, L and LANGEFELD, P and LAPIN, and V and LAST, I and LAUGIER, JP and LAUHAKANGAS, R and LEDER, G and and LEDROIT, F and LEITNER, R and LEMOIGNE, Y and LEMONNE, J and LENZEN, G and and LEPELTIER, V and LESIAK, T and LEVY, JM and LIEB, E and LIKO, D and and LINDNER, R and LIPNIACKA, A and LIPPI, I and LOERSTAD, B and LOKAJICEK, and M and LOKEN, JG and LOPEZFERNANDEZ, A and AGUERA, MAL and LOS, M and and LOUKAS, D and LOZANO, JJ and LUTZ, P and LYONS, L and MAEHLUM, G and and MAILLARD, J and MAIO, A and MALTEZOS, A and MANDL, F and MARCO, J and and MARECHAL, B and MARGONI, M and MARIN, JC and MARIOTTI, C and MARKOU, A and and MARON, T and MARTI, S and MARTINEZRIVERO, C and MARTINEZVIDAL, F and and MATORRAS, F and MATTEUZZI, C and MATTHIAE, G and MAZZUCATO, M and and MCCUBBIN, M and MCKAY, R and MCNULTY, R and MEDBO, J and MERONI, C and and MEYER, WT and MICHELOTTO, M and MIGLIORE, E and MIKULEC, I and MIRABITO, and L and MITAROFF, WA and MITSELMAKHER, GV and MJOERNMARK, U and MOA, T and and MOELLER, R and MOENIG, K and MONGE, MR and MORETTINI, P and MUELLER, H and and MURRAY, WJ and MURYN, B and MYATT, G and NARAGHI, F and NAVARRIA, FL and and NEGRI, P and NEMECEK, S and NEUMANN, W and NEUMEISTER, N and and NICOLAIDOU, R and NIELSEN, BS and NIKOLAENKO, V and NISS, P and and NOMEROTSKI, A and NORMAND, A and OBRAZTSOV, V and OLSHEVSKI, AG and and ORAVA, R and OSTERBERG, K and OURAOU, A and PAGANINI, P and PAGANONI, M and and PAIN, R and PALKA, H and PAPADOPOULOU, TD and PAPE, L and PARODI, F and and PASSERI, A and PEGORARO, M and PENNANEN, J and PERALTA, L and and PERNEGGER, H and PERNICKA, M and PERROTTA, A and PETRIDOU, C and and PETROLINI, A and PHILLIPS, HT and PIANA, G and PIERRE, F and PIMENTA, M and and PLASZCZYNSKI, S and PODOBRIN, O and POL, ME and POLOK, G and and POROPAT, P and POZDNIAKOV, V and PREST, M and PRIVITERA, P and PULLIA, A and and RADOJICIC, D and RAGAZZI, S and RAHMANI, H and RAMES, J and RATOFF, and PN and READ, AL and REALE, M and REBECCHI, P and REDAELLI, NG and and REGLER, M and REID, D and RENTON, PB and RESVANIS, LK and RICHARD, F and and RICHARDSON, J and RIDKY, J and RINAUDO, G and RIPP, I and ROMERO, A and and RONCAGLIOLO, I and RONCHESE, P and ROOS, L and ROSENBERG, EI and ROSSO, and E and ROUDEAU, P and ROVELLI, T and RUCKSTUHL, W and RUHLMANNKLEIDER, V and and RUIZ, A and SAARIKKO, H and SACQUIN, Y and SAJOT, G and SALT, J and and SANCHEZ, J and SANNINO, M and SCHAEL, S and SCHNEIDER, H and SCHYNS, MAE and and SCIOLLA, G and SCURI, E and SEGAR, AM and SEITZ, A and SEKULIN, R and and SESSA, M and SEUFERT, R and SHELLARD, RC and SICCAMA, I and and SIEGTIST, P and SIMONETTI, S and SIMONETTO, F and SISAKIAN, AN and and SKAALI, TB and SMADJA, G and SMIRNOV, N and SMIRNOVA, O and SMITH, GR and and SOSNOWSKI, R and SOUZASANTOS, D and SPASSOV, T and SPIRITI, E and and SQUARCIA, S and STAECK, H and STANESCU, C and STAPNES, S and STAVITSKI, and I and STAVROPOULOS, G and STEPANIAK, K and STICHELBAUT, F and STOCCHI, A and and STRAUSS, J and STRAVER, J and STRUB, R and STUGU, B and SZCZEKOWSKI, and M and SZEPTYCKA, M and TABARELLI, T and TCHIKILEV, O and THEODOSIOU, GE and and THOME, Z and TILQUIN, A and TIMMERMANS, J and TIMOFEEV, VG and and TKATCHEV, LG and TODOROV, T and TOET, DZ and TOMARADZE, A and TOME, B and and TORASSA, E and TORTORA, L and TRANSTROMER, G and TREILLE, D and and TRISCHUK, W and TRISTRAM, G and TRONCON, C and TSIROU, A and TSYGANOV, and EN and TURLUER, ML and TUUVA, T and TYAPKIN, IA and TYNDEL, M and and TZAMARIAS, S and UEBERSCHAER, B and UEBERSCHAER, S and ULLALAND, O and and UVAROV, V and VALENTI, G and VALLAZZA, E and FERRER, JAV and and VANDERVELDE, C and VANAPELDOORN, GW and VANDAM, P and VANDERHEIJDEN, M and and VANDONINCK, WK and VANELDIK, D and VAZ, P and VEGNI, G and VENTURA, and L and VENUS, W and VERBEURE, F and VERLATO, M and VERTOGRADOV, LS and and VILANOVA, D and VITALE, L and VLASOV, E and VODOPYANOV, AS and VOLLMER, and M and VOUTILAINEN, M and VRBA, V and WAHLEN, H and WALCK, C and WALDNER, and F and WEHR, A and WEIERSTALL, M and WEILHAMMER, P and WETHERELL, AM and and WICKENS, JH and WIELERS, M and WILKINSON, GR and WILLIAMS, WSC and and WINTER, M and WITEK, M and WORMSER, G and WOSCHNAGG, K and YIP, K and and YUSHCHENKO, O and ZACH, F and ZAITSEV, A and ZALEWSKA, A and ZALEWSKI, P and and ZAVRTANIK, D and ZEVGOLATAKOS, E and ZIMIN, NI and ZITO, NM and and ZONTAR, D and ZUBERI, R and ZUMERLE, G",
    journal = "PHYSICS LETTERS B",
    year = "1994",
    volume = "341",
    number = "1",
    pages = "109-122",
    publisher = "ELSEVIER SCIENCE BV",
    issn = "0370-2693",
    doi = "10.1016/0370-2693(94)01385-3",
    abstract = "J/psi mesons have been reconstructed from their decay to mu(+)mu(-) and
e(+)e(-), using the data collected by the DELPHI experiment during 1991
and 1992 at the LEP collider. From about 1 million hadronic Z decays 153
+/- 17 J/psi were found, 5.4 +/- 2.3 psi’ were obtained in the channel
J/psi(–> mu(+)mu(-))pi(+)pi(-) and 6.4 +/- 2.7 chi(c) in the channel
J/psi(–> mu(+)mu(-))gamma. As the dominant source of J/psi mesons is
from b quarks, the following branching ratios: Br(b–>J/psi X) = (1.12
+/- 0.12 (stat.) +/- 0.10 (syst.))%, Br(b –> psi’ X) = (0.48 +/- 0.22
(stat.) +/- 0.10 (syst.))%, Br(b–>chi(cl) X) = (1.4 +/- 0.6
(stat.)(-0.2)(+0.4) (syst.))% were measured. From the proper time
distribution of the J/psi sample, the average lifetime of b-hadrons
decaying into J/psi was found to be: tau(B) = 1.50(-0.21)(+0.24) (stat.)
+/- 0.03 (syst.) ps. A search for completely reconstructed B meson
decays to final states including a J/psi gave a signal of 15 +/- 5
events."
}