B-Asterisk production in Z-decays

Abreu, P; Adam, W; Adye, T; Agasi, E; Ajinenko, I; Aleksan, R; Alekseev, Gd; Allport, Pp; Almehed, S; Alvsvaag, Sj; Amaldi, U; Amato, S; Andreazza, A; Andrieux, Ml; Antilogus, P; Apel, Wd; Arnoud, Y; Asman, B; Augustin, Je; Augustinus, A; Baillon, P; Bambade, P; Barao, F; Barate, R; Bardin, Dy; Barker, Gj; Baroncelli, A; Barring, O; Barrio, Ja; Bartl, W; Bates, Mj; Battaglia, M; Baubillier, M; Baudot, J; Becks, Kh; Begalli, M; Beilliere, P; Belokopytov, Y; Benvenuti, Ac; Berggren, M; Bertrand, D; Bianchi, F; Bigi, M; Bilenky, Ms; Billoir, P; Bloch, D; Blume, M; Blyth, S; Bocci, V; Bolognese, T; Bonesini, M; Bonivento, W; Booth, Psl; Borisov, G; Bosio, C; Bosworth, S; Botner, O; Bouquet, B; Bourdarios, C; Bowcock, Tjv; Bozzo, M; Branchini, P; Brand, Kd; Brenner, Ra; Bricman, C; Brillault, L; Brown, Rca; Bruckman, P; Brunet, Jm; Bugge, L; Buran, T; Buys, A; Caccia, Massimo; Calvi, M; Rozas, Ajc; Camporesi, T; Canale, V; Canepa, M; Cankocak, K; Cao, F; Carena, F; Carrilho, P; Carroll, L; Caso, C; Gimenez, Mvc; Cattai, A; Cavallo, Fr; Cerrito, L; Chabaud, V; Charpentier, P; Chaussard, L; Chauveau, J; Checchia, P; Chelkov, Ga; Chierici, R; Chliapnikov, P; Chochula, P; Chorowicz, V; Cindro, V; Collins, P; Contreras, Jl; Contri, R; Cortina, E; Cosme, G; Cossutti, F; Crawley, Hb; Crennell, D; Crosetti, G; Maestro, Jc; Czellar, S; Dahljensen, E; Dahm, J; Dalmagne, B; Dam, M; Damgaard, G; Daum, A; Dauncey, Pd; Davenport, M; Dasilva, W; Defoix, C; Dellaricca, G; Delpierre, P; Demaria, N; Deangelis, A; Deboeck, H; Deboer, W; Debrabandere, S; Declercq, C; Delavaissiere, C; Delotto, B; Demin, A; Depaula, L; Desaintjean, C; Dijkstra, H; Diciaccio, L; Djama, F; Dolbeau, J; Donszelmann, M; Doroba, K; Dracos, M; Drees, J; Drees, Ka; Dris, M; Dufour, Y; Dupont, F; Edsall, D; Ehret, R; Eigen, G; Ekelof, T; Ekspong, G; Elsing, M; Engel, Jp; Ershaidat, N; Erzen, B; Santo, Me; Falk, E; Fassouliotis, D; Feindt, M; Ferrer, A; Filippas, Ta; Firestone, A; Foeth, H; Fokitis, E; Fontanelli, F; Formenti, F; Franek, B; Frenkiel, P; Fries, Dc; Frodesen, Ag; Fruhwirth, R; Fuldaquenzer, F; Furstenau, H; Fuster, J; Galloni, A; Gamba, D; Gandelman, M; Garcia, C; Garcia, J; Gaspar, C; Gasparini, U; Gavillet, P; Gazis, En; Gele, D; Gerber, Jp; Gerdyukov, L; Gibbs, M; Gillespie, D; Gokieli, R; Golob, B; Gopal, G; Gorn, L; Gorski, M; Gouz, Y; Gracco, V; Graziani, E; Grosdidier, G; Gunnarsson, P; Gunther, M; Guy, J; Haedinger, U; Hahn, F; Hahn, M; Hahn, S; Hajduk, Z; Hallgren, A; Hamacher, K; Hao, W; Harris, Fj; Hedberg, V; Henriques, R; Hernandez, Jj; Herquet, P; Herr, H; Hessing, Tl; Higon, E; Hilke, Hj; Hill, Ts; Holmgren, So; Holt, Pj; Holthuizen, D; Houlden, M; Hrubec, J; Huet, K; Hultqvist, K; Joannou, P; Jackson, Jn; Jacobsson, R; Jalocha, P; Janik, R; Jarlskog, G; Jarry, P; Jeanmarie, B; Johansson, Ek; Jonsson, L; Jonsson, P; Joram, C; Juillot, P; Kaiser, M; Kalmus, G; Kapusta, F; Karlsson, M; Karvelas, E; Katsanevas, S; Katsoufis, Ec; Keranen, R; Khomenko, Ba; Khovanski, Nn; King, B; Kjaer, Nj; Klein, H; Klovning, A; Kluit, P; Koehne, Jh; Koene, B; Kokkinias, P; Koratzinos, M; Korcyl, K; Kostioukhine, V; Kourkoumelis, C; Kouznetsov, O; Kramer, Ph; Krammer, M; Kreuter, C; Krolikowski, J; Kronkvist, I; Krumstein, Z; Krupinski, W; Kubinec, P; Kucewicz, W; Kurvinen, K; Lacasta, C; Laktineh, I; Lamblot, S; Lamsa, Jw; Lanceri, L; Lane, Dw; Langefeld, P; Lapin, V; Last, I; Laugier, Jp; Lauhakangas, R; Leder, G; Ledroit, F; Lefebure, V; Legan, Ck; Leitner, R; Lemoigne, Y; Lemonne, J; Lenzen, G; Lepeltier, V; Lesiak, T; Liko, D; Lindner, R; Lipniacka, A; Lippi, I; Loerstad, B; Lokajicek, M; Lopez, Jm; Lopezfernandez, A; Aguera, Mal; Loukas, D; Lutz, P; Lyons, L; Macnaughton, J; Maehlum, G; Maio, A; Malychev, V; Marco, J; Marechal, B; Margoni, M; Marin, Jc; Mariotti, C; Markou, A; Maron, T; Martinezrivero, C; Martinezvidal, F; Garcia, Sm; Matorras, F; Matteuzzi, C; Matthiae, G; Mazzucato, M; Mccubbin, M; Mckay, R; Mcnulty, R; Medbo, J; Meroni, C; Meyer, Wt; Michelotto, M; Migliore, E; Mirabito, L; Mjoernmark, U; Moa, T; Moeller, R; Moenig, K; Monge, Mr; Morettini, P; Mueller, H; Mundim, L; Mitaroff, Wa; Murray, Wj; Muryn, B; Myatt, G; Naraghi, F; Navarria, Fl; Navas, S; Negri, P; Nemecek, S; Neumann, W; Neumeister, N; Nicolaidou, R; Nielsen, Bs; Nieuwenhuizen, M; Nikolaenko, V; Niss, P; Nomerotski, A; Normand, A; Oberschultebeckmann, W; Obraztsov, V; Olshevski, Ag; Orava, R; Osterberg, K; Ouraou, A; Paganini, P; Paganoni, M; Pages, P; Palka, H; Papadopoulou, Td; Pape, L; Parkes, C; Parodi, F; Passeri, A; Pegoraro, M; Peralta, L; Pernegger, H; Pernicka, M; Perrotta, A; Petridou, C; Petrolini, A; Phillips, Ht; Piana, G; Pierre, F; Pimenta, M; Plaszczynski, S; Podobrin, O; Pol, Me; Polok, G; Poropat, P; Pozdniakov, V; Prest, Michela; Privitera, P; Pukhaeva, N; Pullia, A; Radojicic, D; Ragazzi, S; Rahmani, H; Rames, J; Ratoff, Pn; Read, Al; Reale, M; Rebecchi, P; Redaelli, Ng; Regler, M; Reid, D; Renton, Pb; Resvanis, Lk; Richard, F; Richardson, J; Ridky, J; Rinaudo, G; Ripp, I; Romero, A; Roncagliolo, I; Ronchese, P; Ronjin, V; Roos, L; Rosenberg, Ei; Rosso, E; Roudeau, P; Rovelli, T; Ruckstuhl, W; Ruhlmannkleider, V; Ruiz, A; Saarikko, H; Sacquin, Y; Sadovsky, A; Sajot, G; Salt, J; Sanchez, J; Sannino, M; Schneider, H; Schyns, Mae; Sciolla, G; Scuri, F; Sedykh, Y; Segar, Am; Seitz, A; Sekulin, R; Shellard, Rc; Siccama, I; Siegrist, P; Simonetti, S; Simonetto, F; Sisakian, An; Sitar, B; Skaali, Tb; Smadja, G; Smirnov, N; Smirnova, O; Smith, Gr; Sosnowski, R; Souzasantos, D; Spassov, T; Spiriti, E; Squarcia, S; Staeck, H; Stanescu, C; Stapnes, S; Stavitski, I; Stepaniak, K; Stichelbaut, F; Stocchi, A; Strauss, J; Strub, R; Stugu, B; Szczekowski, M; Szeptycka, M; Tabarelli, T; Tavernet, Jp; Tchikilev, O; Tilquin, A; Timmermans, J; Tkatchev, Lg; Todorov, T; Toet, Dz; Tomaradze, A; Tome, B; Tortora, L; Transtromer, G; Treille, D; Trischuk, W; Tristram, G; Trombini, A; Troncon, C; Tsirou, A; Turluer, Ml; Tyapkin, Ia; Tyndel, M; Tzamarias, S; Ueberschaer, B; Ueberschaer, S; Ullaland, O; Uvarov, V; Valenti, G; Vallazza, E; Velde, Cv; Vanapeldoorn, Gw; Vandam, P; Vandoninck, Wk; Vaneldik, J; Vassilopoulos, N; Vegni, G; Ventura, L; Venus, W; Verbeure, F; Verlato, M; Vertogradov, Ls; Vilanova, D; Vincent, P; Vitale, L; Vlasov, E; Vodopyanov, As; Vrba, V; Wahlen, H; Walck, C; Waldner, F; Wehr, A; Weierstall, M; Weilhammer, P; Wetherell, Am; Wicke, D; Wickens, Jh; Wielers, M; Wilkinson, Gr; Williams, Wsc; Winter, M; Witek, M; Wormser, G; Woschnagg, K; Yip, K; Yushchenko, O; Zach, F; Zacharatou, C; Zaitsev, A; Zalewska, A; Zalewski, P; Zavrtanik, D; Zevgolatakos, E; Zimin, Ni; Zito, M; Zontar, D; Zuberi, R; Zucchelli, Gc; Zumerle, G.

The decay B* --> B gamma has been observed with the DELPHI detector at LEP, where the B* meson is produced in Z boson decays, The combination of inclusively reconstructed B mesons with well-measured converted photons yields a measurement of the flavour-averaged B* - B mass difference of 45.5 +/- 0.3 (stat.) +/- 0.8 (syst.) MeV/c(2). 95% confidence level upper limits at 6 MeV/c(2) are placed on both the isospin (i.e, B+-B-0) and the B-s-B-ud splitting of the mass difference, The production ratio of B* to B mesons in Z decays is measured to be 0.72 +/- 0.03 (stat.) +/- 0.06 (syst.). Limits on the production cross-section of other hypothetical excited B hadron states decaying radiatively are established. The differential B* cross section has been measured to be in good agreement with the average b fragmentation, yielding an average fractional B* energy of [x(E)] = 0.695 +/- 0.009 (stat.) +/- 0.013 (syst.). From the decay angular distribution the relative contribution of longitudinal B* polarisation states is measured to be sigma(L)/(sigma(L) + sigma(T)) = 0.32 +/- 0.04 (stat.) +/- 0.03 (syst.).