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31 results on '"Hernando, Ja"'

1. Análisis de las notas de prensa institucionales y su visibilidad en la prensa

Author: Alcoceba Hernando, JA, primary
Published: 2010
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2. LHCb potential to measure/exclure the branching ratio of the decay $Bs \to \mu^{+}\mu^{-}$

Author: Martínez, D, Hernando, JA, and Teubert, F
Subjects: Detectors and Experimental Techniques
Abstract: This note describes the potential of LHCb to reach sensitivities of the order of 10-9 in the decay of Bs -> mu+ mu-. The large background expected in the search for this decay is kept under control due to the excellent tracking performance of LHCb (namely the invariant mass resolution ~18 MeV/c2), and the good muon-identification capabilities. The LHCb trigger selects these events efficiently. LHCb has the potential to exclude the interesting region between 10-8 and the SM prediction with very little luminosity (~0.5 fb-1), and has the potential to claim a 3 sigma (5 sigma) observation (discovery) of the SM prediction with ~2 fb-1 (~6 fb-1) of data.
Published: 2007

3. b-tagging in DELPHI at LEP (vol 32, pg 185, 2004)

Author: Abdallah, J, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, T, Alderweireld, T, Alemany-Fernandez, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, WD, Arnoud, Y, Ask, S, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Bates, M, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bibby, J, Biffi, P, Bloch, D, Blom, M, Bonesini, M, Boonekamp, M, Booth, PSL, Borisov, G, Botner, O, Bouquet, B, Bowcock, TJV, Boyko, I, Bracko, M, Branchini, P, Brenner, R, Brodet, E, Bruckman, P, Brunet, JM, Bugge, L, Buschmann, P, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Castro, N, Cavallo, F, Chabaud, V, Chapkin, M, Charpentier, P, Checchia, P, Chierici, R, Chliapnikov, P, Chudoba, J, Chung, SU, Cieslik, K, Collins, P, Contri, R, Cosme, G, Cossutti, F, Costa, MJ, Couchot, F, Crawley, B, Crennell, D, Cuevas, J, D'Almagne, B, D'Hondt, J, Dalmau, J, da Silva, T, Da Silva, W, Della Ricca, G, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Maria, N, De Min, A, de Paula, L, Di Ciaccio, L, Dijkstra, H, Di Simone, A, Doroba, K, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Santo, MCE, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferro, F, Flagmeyer, U, Foeth, H, Fokitis, E, Fulda-Quenzer, F, Fuster, J, Gandelman, M, Garcia, C, Gavillet, P, Gazis, E, Geralis, T, Gokieli, R, Golob, B, Cadenas, JJG, Gomez-Ceballos, G, Goncalves, P, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hallgren, A, Hamacher, K, Hamilton, K, Hansen, J, Haug, S, Hauler, F, Hedberg, V, Hennecke, M, Hernando, JA, Herr, H, Heuser, J, Holmgren, SO, Holt, PJ, Houlden, MA, Hultqvist, K, Jackson, JN, Jalocha, P, Jarlskog, C, Jarlskog, G, Jarry, P, Jeans, D, Johansson, EK, Johansson, PD, Jonsson, P, Joram, C, Jungermann, L, Kapusta, F, Karlsson, M, Katsanevas, S, Katsoufis, E, Keranen, R, Kernel, G, Kersevan, BP, Kiiskinen, A, King, BT, Kjaer, NJ, Kluit, P, Kokkinias, P, Kourkoumelis, C, Kouznetsov, O, Krumstein, Z, Kucharczyk, M, Kucewicz, W, Kurowska, J, Lamsa, J, Leder, G, Ledroit, F, Leinonen, L, Leitner, R, Lemonne, J, Lepeltier, V, Lesiak, T, Liebig, W, Liko, D, Lipniacka, A, Lopes, JH, Lopez, JM, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Malek, A, Maltezos, S, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Mazzucato, F, Mazzucato, M, Mc Nulty, R, Meroni, C, Meyer, WT, Migliore, E, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, R, Montenegro, J, Moraes, D, Moreno, S, Morettini, P, Mueller, U, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, F, Nawrocki, K, Nicolaidou, R, Niezurawski, P, Nikolenko, M, Nomerotski, A, Norman, A, Nygren, A, Oblakowska-Mucha, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Palacios, JP, Palka, H, Papadopoulou, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Perrotta, A, Petrolini, A, Piedra, J, Pieri, L, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Pukhaeva, N, Pullia, A, Rames, J, Ramler, L, Read, A, Rebecchi, P, Rehn, J, Reid, D, Reinhardt, R, Renton, P, Richard, F, Ridky, J, Rivero, M, Rodriguez, D, Romero, A, Ronchese, P, Rosenberg, E, Roudeau, P, Rovelli, T, Ruhlmann-Kleider, V, Ryabtchikov, D, Sadovsky, A, Salmi, L, Salt, J, Savoy-Navarro, A, Schwickerath, U, Segar, A, Sekulin, R, Siebel, M, Sisakian, A, Smadja, G, Smirnova, O, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Stanitzki, M, Stavitski, I, Stocchi, A, Strauss, J, Stugu, B, Szczekowski, M, Szeptycka, M, Szumlak, T, Tabarelli, T, Taffard, AC, Tegenfeldt, F, Timmermans, J, Tinti, N, Tkatchev, L, Tobin, M, Todorovova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortosa, P, Travnicek, P, Treille, D, Trischuk, W, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tyapkin, P, Tyndel, M, Tzamarias, S, Uvarov, V, Valenti, G, Van Dam, P, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Veloso, F, Venus, W, Verbeure, F, Verdier, P, Verzi, V, Vilanova, D, Vitale, L, Vrba, V, Wahlen, H, Washbrook, AJ, Weilhammer, P, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zimin, NI, Zintchenko, A, Zupan, M, and Collaboration, DELPHI
Published: 2004

4. Erratum: b-tagging in DELPHI at LEP (European Physical Journal C (2004) 32 (185-208) DOI 10.1140/epjc/s2003-01441-8)

Author: Abdallah, J, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, T, Alderweireld, T, Alemany-Fernandez, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, W-D, Arnoud, Y, Ask, S, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Bates, M, Battaglia, M, Baubillier, M, Becks, K-H, Begalli, M, Behrmann, A, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bibby, J, Biffi, P, Bloch, D, Blom, M, Bonesini, M, Boonekamp, M, Booth, PSL, Borisov, G, Botner, O, Bouquet, B, Bowcock, TJV, Boyko, I, Bracko, M, Branchini, P, Brenner, R, Brodet, E, Bruckman, P, Brunet, JM, Bugge, L, Buschmann, P, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Castro, N, Cavallo, F, Chabaud, V, Chapkin, M, Charpentier, P, Checchia, P, Chierici, R, Chliapnikov, P, Chudoba, J, Chung, SU, Cieslik, K, Collins, P, Contri, R, Cosme, G, Cossutti, F, Costa, MJ, Couchot, F, Crawley, B, Crennell, D, Cuevas, J, D'Almagne, B, D'Hondt, J, Dalmau, J, da Silva, T, Da Silva, W, Della Ricca, G, de Angelis, A, de Boer, W, de Clercq, C, de Lotto, B, de Maria, N, de Min, A, de Paula, L, di Ciaccio, L, Dijkstra, H, di Simone, A, Doroba, K, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Espirito Santo, MC, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferro, F, Flagmeyer, U, Foeth, H, Fokitis, E, Fulda-Quenzer, F, Fuster, J, Gandelman, M, Garcia, C, Gavillet, P, Gazis, E, Geralis, T, Gokieli, R, Golob, B, Gomez Cadenas, JJ, Gomez-Ceballos, G, Goncalves, P, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hallgren, A, Hamacher, K, Hamilton, K, Hansen, J, Haug, S, Hauler, F, Hedberg, V, Hennecke, M, Hernando, JA, Herr, H, Heuser, J, Holmgren, S-O, Holt, PJ, Houlden, MA, Hultqvist, K, Jackson, JN, Jalocha, P, Jarlskog, C, Jarlskog, G, Jarry, P, Jeans, D, Johansson, EK, Johansson, PD, Jonsson, P, Joram, C, Jungermann, L, Kapusta, F, Karlsson, M, Katsanevas, S, Katsoufis, E, Keranen, R, Kernel, G, Kersevan, BP, Kiiskinen, A, King, BT, Kjaer, NJ, Kluit, P, Kokkinias, P, Kourkoumelis, C, Kouznetsov, O, Krumstein, Z, Kucharczyk, M, Kucewicz, W, Kurowska, J, Lamsa, J, Leder, G, Ledroit, F, Leinonen, L, Leitner, R, Lemonne, J, Lepeltier, V, Lesiak, T, Liebig, W, Liko, D, Lipniacka, A, Lopes, JH, Lopez, JM, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Malek, A, Maltezos, S, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J-C, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Mazzucato, F, Mazzucato, M, Mc Nulty, R, Meroni, C, Meyer, WT, Migliore, E, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, R, Montenegro, J, Moraes, D, Moreno, S, Morettini, P, Mueller, U, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, F, Nawrocki, K, Nicolaidou, R, Niezurawski, P, Nikolenko, M, Nomerotski, A, Norman, A, Nygren, A, Oblakowska-Mucha, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Palacios, JP, Palka, H, Papadopoulou, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Perrotta, A, Petrolini, A, Piedra, J, Pieri, L, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Pukhaeva, N, Pullia, A, Rames, J, Ramler, L, Read, A, Rebecchi, P, Rehn, J, Reid, D, Reinhardt, R, Renton, P, Richard, F, Ridky, J, Rivero, M, Rodriguez, D, Romero, A, Ronchese, P, Rosenberg, E, Roudeau, P, Rovelli, T, Ruhlmann-Kleider, V, Ryabtchikov, D, Sadovsky, A, Salmi, L, Salt, J, Savoy-Navarro, A, Schwickerath, U, Segar, A, Sekulin, R, Siebel, M, Sisakian, A, Smadja, G, Smirnova, O, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Stanitzki, M, Stavitski, I, Stocchi, A, Strauss, J, Stugu, B, Szczekowski, M, Szeptycka, M, Szumlak, T, Tabarelli, T, Taffard, AC, Tegenfeldt, F, Timmermans, J, Tinti, N, Tkatchev, L, Tobin, M, Todorovova, S, Tomaradze, A, Tome, B, Tonazzo, A, Tortosa, P, Travnicek, P, Treille, D, Trischuk, W, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M-L, Tyapkin, IA, Tyapkin, P, Tyndel, M, Tzamarias, S, Uvarov, V, Valenti, G, van Dam, P, van Eldik, J, van Lysebetten, A, van Remortel, N, van Vulpen, I, Vegni, G, Veloso, F, Venus, W, Verbeure, F, Verdier, P, Verzi, V, Vilanova, D, Vitale, L, Vrba, V, Wahlen, H, Washbrook, AJ, Weilhammer, P, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zimin, NI, Zintchenko, A, and Zupan, M
Published: 2004

5. PRODUCTION OF CHARGED-PARTICLES, K-S(0),K+/-, P AND LAMBDA IN Z-]B(B)OVER-BAR EVENTS AND IN THE DECAY OF B-HADRONS

Author: ABREU, P ADAM, W ADYE, T AGASI, E AJINENKO, I and ALEKSAN, R ALEKSEEV, GD ALLPORT, PP ALMEHED, S ALMEIDA, FML ALVSVAAG, SJ AMALDI, U AMATO, S ANDREAZZA, A and ANDRIEUX, ML ANTILOGUS, P APEL, WD ARNOUD, Y ASMAN, B and AUGUSTIN, JE AUGUSTINUS, A BAILLON, P BAMBADE, P and BARAO, F BARATE, R BARDIN, DY BARKER, GJ BARONCELLI, A and BARRING, O BARRIO, JA BARTL, W BATES, MJ BATTAGLIA, M BAUBILLIER, M BAUDOT, J BECKS, KH BEGALLI, M and BEILLIERE, P BELOKOPYTOV, Y BELTRAN, P BENVENUTI, AC and BERGGREN, M BERTRAND, D BIANCHI, F BIGI, M BILENKY, MS and BILLOIR, P BJARNE, J BLOCH, D BLUME, M BLYTH, S and BOCCI, V BOLOGNESE, T BONESINI, M BONIVENTO, W BOOTH, PSL BORISOV, G BOSIO, C BOSTJANCIC, B BOSWORTH, S and BOTNER, O BOUQUET, B BOURDARIOS, C BOWCOCK, TJV BOZZO, M and BRANCHINI, P BRAND, KD BRENNER, RA BRICMAN, C and BRILLAULT, L BROWN, RCA BRUCKMAN, P BRUNET, JM BUGGE, L and BURAN, T BUYS, A CACCIA, M CALVI, M ROZAS, AJC and CAMPORESI, T CANALE, V CANEPA, M CANKOCAK, K CAO, F and CARENA, F CARRILHO, P CARROLL, L CASO, C CASSIO, V and GIMENEZ, MVC CATTAI, A CAVALLO, FR CERRITO, L CHABAUD, V and CHAN, A CHAPKIN, M CHARPENTIER, P CHAUSSARD, L and CHAUVEAU, J CHECCHIA, P CHELKOV, GA CHLIAPNIKOV, P and CHOCHULA, P CHOROWICZ, V CHRIN, JTM CINDRO, V COLLINS, P and CONTRERAS, JL CONTRI, R CORTINA, E COSME, G and 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 and DASILVA, W DEFOIX, C DELLARICCA, G DELPIERRE, P DEMARIA, N DEANGELIS, A DEBOECK, H DEBOER, W DEBRABANDERE, S and DECLERCQ, C LASO, MDMD DELAVAISSIERE, C DELOTTO, B and DEMIN, A DEPAULA, L DESAINTJEAN, C DIJKSTRA, H and DICIACCIO, L DJAMA, F DOLBEAU, J DONSZELMANN, M DOROBA, K DRACOS, M DREES, J DREES, KA DRIS, M DUFOUR, Y and DUPONT, F EDSALL, D EHRET, R EKELOF, T EKSPONG, G and ELSING, M ENGEL, JP ERSHAIDAT, N SANTO, ME FASSOULIOTIS, D FEINDT, M FERRER, A FILIPPAS, TA FIRESTONE, A and FOETH, H FOKITIS, E FONTANELLI, F FORMENTI, F FOUSSET, JL FRANEK, B FRENKIEL, P FRIES, DC FRODESEN, AG and FULDAQUENZER, F FURSTENAU, H FUSTER, J GAMBA, D and GANDELMAN, M GARCIA, C GARCIA, J GASPAR, C GASPARINI, U and GAVILLET, P GAZIS, EN GELE, D GERBER, JP GILLESPIE, D GOKIELI, R GOLOB, B CADENAS, JJGY GOPAL, G GORN, L and GORSKI, M GRACCO, V GRARD, F GRAZIANI, E GROSDIDIER, G GUNNARSSON, P GUY, J HAEDINGER, U HAHN, F HAHN, M and HAHN, S HAIDER, S HAJDUK, Z HAKANSSON, A HALLGREN, A and HAMACHER, K HAO, W HARRIS, FJ HEDBERG, V HENRIQUES, R HERNANDEZ, JJ HERNANDO, JA HERQUET, P HERR, H and HESSING, TL HIGON, E HILKE, HJ HILL, TS HOLMGREN, SO and HOLT, PJ HOLTHUIZEN, D HONORE, PF HOULDEN, M HRUBEC, J and HUET, K HULTQVIST, K IOANNOU, P JACKSON, JN and JACOBSON, R JALOCHA, P JANIK, R JARLSKOG, G JARRY, P and JEANMARIE, B JOHNSSON, EK JONSSON, L JUILLOT, P KAISER, M KALMUS, G KAPUSTA, F KARLSSON, M KARVELAS, E and KATSANEVAS, S KATSOUFIS, EC KERANEN, R KHOMENKO, BA and KHOVANSKI, NN KING, B KJAER, NJ KLEIN, H KLOVNING, A and KLUIT, P KOEHNE, JH KOENE, B KOKKINIAS, P KORATZINOS, M and KORCYL, K KOSTIOUKHINE, V KOURKOUMELIS, C KOUZNETSOV, O and KRAMER, PH KRAMMER, M KREUTER, C KROLIKOWSKI, J and KRONKVIST, I KRUMSTEIN, Z KRUPINSKI, W KUBINEC, P and KUCEWICZ, W KULKA, K KURVINEN, K LACASTA, C LAKTINEH, I and LAMBLOT, S LAMBROPOULOS, C LAMSA, JW LANCERI, L and LANE, DW LANGEFELD, P LAPIN, V LAST, I LAUGIER, JP and LAUHAKANGAS, R LEDER, G LEDROIT, F LEFEBURE, V LEGAN, CK and LEITNER, R LEMOIGNE, Y LEMONNE, J LENZEN, G and LEPELTIER, V LESIAK, T LIKO, D LINDNER, R LIPNIACKA, A and LIPPI, I LOERSTAD, B LOKAJICEK, M LOKEN, JG and LOPEZFERNANDEZ, A AGUERA, MAL LOUKAS, D LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G MAILLARD, J MAIO, A MALTEZOS, A MALYCHEV, V MANDL, F MARCO, J MARECHAL, B MARGONI, M MARIN, JC MARIOTTI, C MARKOU, A MARON, T and MARTINEZRIVERO, C MARTINEZVIDAL, F GARCIA, SMI MATORRAS, F and MATTEUZZI, C MATTHIAE, G MAZZUCATO, M MCCUBBIN, M and MCKAY, R MCNULTY, R MEDBO, J MERONI, C MEYER, WT and MICHELOTTO, M MIGLIORE, E MIKULEC, I MIRABITO, L and MITAROFF, WA MJOERNMARK, U MOA, T MOELLER, R MOENIG, K and MONGE, MR MORETTINI, P MUELLER, H MURRAY, WJ MURYN, B MYATT, G NARAGHI, F NAVARRIA, FL NAVAS, S NEGRI, P and NEMECEK, S NEUMANN, W NEUMEISTER, N NICOLAIDOU, R and NIELSEN, BS NIKOLAENKO, V NISS, P NOMEROTSKI, A NORMAND, A OBERSCHULTEBECKMANN, W OBRAZTSOV, V OLSHEVSKI, AG and ORAVA, R OSTERBERG, K OURAOU, A PAGANINI, P PAGANONI, M and PAGES, P PALKA, H PAPADOPOULOU, TD PAPE, L PARODI, F and PASSERI, A PEGORARO, M PENNANEN, J PERALTA, L and PEREVOZCHIKOV, V PERNEGGER, H PERNICKA, M PERROTTA, A and PETRIDOU, C PETROLINI, A PHILLIPS, HT PIANA, G PIERRE, F and PIMENTA, M PLASZCZYNSKI, S PODOBRIN, O POL, ME and POLOK, G POROPAT, P POZDNIAKOV, V PREST, M PRIVITERA, P and 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 and RICHARD, F RICHARDSON, R RIDKY, J RINAUDO, G RIPP, I and ROMERO, A RONCAGLIOLO, I RONCHESE, P RONJIN, V ROOS, L and ROSENBERG, EI ROSSO, E ROUDEAU, P ROVELLI, T and RUCHKSTUHL, W RUHLMANNKLEIDER, V RUIZ, A SAARIKKO, H and SACQUIN, Y SADOVSKY, A SAJOT, G SALT, J SANCHEZ, J and SANNINO, M SCHNEIDER, H SCHYNS, MAE SCIOLLA, G SCURI, F and SEDYKH, Y SEGAR, AM SEITZ, A SEKULIN, R SHELLARD, RC and SICCAMA, I SIEGRIST, P SIMONETTI, S SIMONETTO, F and SISAKIAN, AN SITAR, B SKAALI, TB SMADJA, G SMIRNOV, N and SMIRNOVA, O SMITH, GR SOSNOWSKI, R SOUZASANTOS, D and SPASSOV, T SPIRITI, E SPONHOLZ, P SQUARCIA, S STAECK, H and STANESCU, C STAPNES, S STAVITSKI, I STAVROPOULOS, G and STEPANIAK, K STICHELBAUT, F STOCCHI, A STRAUSS, J STRUB, R STUGU, B SZCZEKOWSKI, M SZEPTYCKA, M TABARELLI, T and TAVERNET, JP TCHIKILEV, O THEODOSIOU, GE TILQUIN, A and TIMMERMANS, J TKATCHEV, LG TODOROV, T TOET, DZ and TOMARADZE, A TOME, B TORASSA, E TORTORA, L TRANSTROMER, G TREILLE, D TRISCHUK, W TRISTRAM, G TROMBINI, A and TRONCON, C TSIROU, A TURLUER, ML TYAPKIN, IA TYNDEL, M and TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S ULLALAND, O and UVAROV, V VALENTI, G VALLAZZA, E FERRER, JAV and VANAPELDOORN, GW VANDAM, P VANDONINCK, WK VANELDIK, J and VEGNI, G VENTURA, L VENUS, W VERBEURE, F VERLATO, M and VERTOGRADOV, LS VILANOVA, D VINCENT, P VITALE, L VLASOV, E VODOPYANOV, AS VOUTILAINEN, M VRBA, V WAHLEN, H and WALCK, C WALDNER, F WEHR, A WEIERSTALL, M WEILHAMMER, P and WETHERELL, AM WICKE, D WICKENS, JH WIELERS, M and WILKINSON, GR WILLIAMS, WSC WINTER, M WITEK, M WORMSER, G WOSCHNAGG, K YIP, K YU, L YUSHCHENKO, O ZACH, F and ZAITSEV, A ZALEWSKA, A ZALEWSKI, P ZAVRTANIK, D and ZEVGOLATAKOS, E ZIMIN, NI ZITO, M ZONTAR, D ZUBERI, R and ZUCCHELLI, GC ZUMERLE, G
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: A sample of events enriched in quark pairs was selected in the data recorded by the DELPHI experiment at LEP during 1992 and 1993, by the presence of secondary decay vertices from short-lived particles. Using this sample, the average multiplicities of K-S(0), K-+/-, p((p) over bar), Lambda() and of charged particles in events have been measured, distinguishing the component from fragmentation and the component coming from the decay of b-hadrons. The measurement of the average charge multiplicity in events was used to compute the mean fractional beam energy carried by the primary b-hadron, and the difference in charged particle multiplicity between events and light quark (, , ) events.
Published: 1995

6. FIRST EVIDENCE OF HARD SCATTERING PROCESSES IN SINGLE TAGGED GAMMA-GAMMA-COLLISIONS

Author: ABREU, P ADAM, W ADYE, T AGASI, E AJINENKO, I and ALEKSAN, R ALEKSEEV, GD ALLPORT, PP ALMEHED, S ALMEIDA, FML ALVSVAAG, SJ AMALDI, U ANDREAZZA, A ANDRIEUX, ML and ANTILOGUS, P APEL, WD ARNOUD, Y ASMAN, B AUGUSTIN, JE and AUGUSTINUS, A BAILLON, P BAMBADE, P BARAO, F BARATE, R BARBIELLINI, G BARDIN, DY BARKER, GJ BARONCELLI, A and BARRING, O BARRIO, JA BARTL, W BATES, MJ BATTAGLIA, M and BAUBILLIER, M BAUDOT, J BECKS, KH BEGALLI, M and BEILLIERE, P BELTRAN, P BENVENUTI, AC BERGGREN, M and BERTRAND, D BIANCHI, F BIGI, M BILENKY, MS BILLOIR, P and BJARNE, J BLOCH, D BLYTH, S BOCCI, V BOGOLUBOV, PN and BOLOGNESE, T BONESINI, M BONIVENTO, W BOOTH, PSL and BORISOV, G BOSIO, C BOSTJANCIC, B BOSWORTH, S BOTNER, O and BOUQUET, B BOURDARIOS, C BOWCOCK, TJV BOZZO, M and BRAIBANT, S BRANCHINI, P BRAND, KD BRENNER, RA BRIAND, H and BRICMAN, C BRILLAULT, L BROWN, RCA BRUNET, JM BUGGE, L BURAN, T BUYS, A CACCIA, M CALVI, M CAMACHOROZAS, AJ CAMPORESI, T CANALE, V CANEPA, M CANKOCAK, K CAO, F CARENA, F CARRILHO, P CARROLL, L CASO, C CASSIO, V and CASTILLOGIMENEZ, MV CATTAI, A CAVALLO, FR CERRITO, L and CHABAUD, V CHAN, A CHARPENTIER, P CHAUSSARD, L CHAUVEAU, J CHECCHIA, P CHELKOV, GA CHLIAPNIKOV, P CHOROWICZ, V and CHRIN, JTM CINDRO, V COLLINS, P CONTRERAS, JL and CONTRI, R CORTINA, E COSME, G COUCHOT, F CRAWLEY, HB and CRENNELL, D CROSETTI, G MAESTRO, JC CZELLAR, S and DAHLJENSEN, E DAHM, J DALMAGNE, B DAM, M DAMGAARD, G and DAUBIE, E DAUM, A DAUNCEY, PD DAVENPORT, M DASILVA, W and DEFOIX, C DELPIERRE, P DEMARIA, N DEANGELIS, A and DEBOECK, H DEBOER, W DEBRABANDERE, S DECLERCQ, C and DEFEZLASO, MDM DELAVAISSIERE, C DELOTTO, B DEMIN, A and DEPAULA, L DESAINTJEAN, C DIJKSTRA, H DICIACCIO, L and DJAMA, F DOLBEAU, J DONSZELMANN, M DOROBA, K DRACOS, M and DREES, J DRIS, M DUFOUR, Y DUPONT, F EDSALL, D and EHRET, R EKELOF, T EKSPONG, G ELSING, M ENGEL, JP and ERSHAIDAT, N SANTO, ME FASSOULIOTIS, D FEINDT, M FERRER, A FILIPPAS, TA FIRESTONE, A FOETH, H FOKITIS, E and FONTANELLI, F FORMENTI, F FOUSSET, JL FRANEK, B and FRENKIEL, P FRIES, DC FRODESEN, AG FRUHWIRTH, R and FULDAQUENZER, F FURSTENAU, H FUSTER, J GAMBA, D and GANDELMAN, M GARCIA, C GARCIA, J GASPAR, C GASPARINI, U and GAVILLET, P GAZIS, EN GELE, D GERBER, JP GILLESPIE, D GOKIELI, R GOLOB, B GOLOVATYUK, VM CADENAS, JJGY and GOPAL, G GORN, L GORSKI, M GRACCO, V GRARD, F and GRAZIANI, E GROSDIDIER, G GUNNARSSON, P GUY, J and HAEDINGER, U HAHN, F HAHN, M HAHN, S HAIDER, S and HAJDUK, Z HAKANSSON, A HALLGREN, A HAMACHER, K HAO, W and HARRIS, FJ HEDBERG, V HENRIQUES, R HERNANDEZ, JJ and HERNANDO, JA HERQUET, P HERR, H HESSING, TL HIGON, E and HILKE, HJ HILL, TS HOLMGREN, SO HOLT, PJ HOLTHUIZEN, D and HONORE, PF HOULDEN, M HRUBEC, J HUET, K HULTQVIST, K and IOANNOU, P IVERSEN, PS JACKSON, JN JACOBSSON, R and JALOCHA, P JARLSKOG, G JARRY, P JEANMARIE, B JOHANSSON, EK JONSSON, L JUILLOT, P KAISER, M KALMUS, G and KAPUSTA, F KARLSSON, M KARVELAS, E KATARGIN, A and KATSANEVAS, S KATSOUFIS, EC KERANEN, R KHOMENKO, BA and KHOVANSKI, NN KING, B KJAER, NJ KLEIN, H KLOVNING, A and KLUIT, P KOCHMEHRIN, A KOEHNE, JH KOENE, B KOKKINIAS, P and KORATZINOS, M KORCYL, K KORYTOV, AV KOSTIOUKHINE, V and KOURKOUMELIS, C KOUZNETSOV, O KRAMER, PH KREUTER, C and KROLIKOWSKI, J KRONKVIST, I KRUPINSKI, W KULKA, K and KURVINEN, K LACASTA, C LAKTINEH, I LAMBROPOULOS, C and LAMSA, JW LANCERI, L LANGEFELD, P LAPIN, V LAST, I and LAUGIER, JP LAUHAKANGAS, R LEDER, G LEDROIT, F LEITNER, R LEMOIGNE, Y LEMONNE, J LENZEN, G LEPELTIER, V and LESIAK, T LEVY, JM LIEB, E LIKO, D LINDNER, R and LIPNIACKA, A LIPPI, I LOERSTAD, B LOKAJICEK, M LOKEN, JG and LOPEZFERNANDEZ, A AGUERA, MAL LOS, M LOUKAS, D and LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G MAILLARD, J and MAIO, A MALTEZOS, A MANDL, F MARCO, J MARECHAL, B and MARGONI, M MARIN, JC MARIOTTI, C MARKOU, A MARON, T and MARTI, S MARTINEZRIVERO, C MARTINEZVIDAL, F MATORRAS, F and MATTEUZZI, C MATTHIAE, G MAZZUCATO, M MCCUBBIN, M MCKAY, R MCNULTY, R MEDBO, J MERONI, C MEYER, WT MIAGKOV, A and MICHELOTTO, M MIGLIORE, E MIKULEC, I MIRABITO, L and MITAROFF, WA MITSELMAKHER, GV MJOERNMARK, U MOA, T and MOELLER, R MOENIG, K MONGE, MR MORETTINI, P MUELLER, H and MURRAY, WJ MURYN, B MYATT, G NARAGHI, F NAVARRIA, FL and NAVAS, S NEGRI, P NEMECEK, S NEUMANN, W NEUMEISTER, N NICOLAIDOU, R NIELSEN, BS NIKOLAENKO, V NISS, P and NOMEROTSKI, A NORMAND, A OBRAZTSOV, V OLSHEVSKI, AG and ORAVA, R OSTERBERG, K OURAOU, A PAGANINI, P PAGANONI, M and PAIN, R PALKA, H PAPADOPOULOU, TD PAPE, L PARODI, F and PASSERI, A PEGORARO, M PENNANEN, J PERALTA, L and PERNEGGER, H PERNICKA, M PERROTTA, A PETRIDOU, C and PETROLINI, A PHILLIPS, HT PIANA, G PIERRE, F PIMENTA, M and PLASZCZYNSKI, S PODOBRIN, O POL, ME POLOK, G and POROPAT, P POZDNIAKOV, V PREST, M PRIVITERA, P PULLIA, A and RADOJICIC, D RAGAZZI, S RAHMANI, H RAMES, J RATOFF, PN READ, AL REALE, M REBECCHI, P RADAELLI, NG and REGLER, M REID, D RENTON, PB RESVANIS, LK RICHARD, F and RICHARDSON, J RIDKY, J RINAUDO, G RIPP, I ROMERO, A and RONCAGLIOLO, I RONCHESE, P ROOS, L ROSENBERG, EI ROSSO, E ROUDEAU, P ROVELLI, T RUCKSTUHL, W RUHLMANNKLEIDER, V and RUIZ, A RYBICKI, K SAARIKKO, H SACQUIN, Y SAJOT, G and SALT, J SANCHEZ, J SANNINO, M SCHNEIDER, H SCHYNS, MAE SCIOLLA, G SCURI, F SEGAR, AM SEITZ, A SEKULIN, R SESSA, M SEUFERT, R SHELLARD, RC SICCAMA, I and SIEGRIST, P SIMONETTI, S SIMONETTO, F SISAKIAN, AN and SKAALI, TB SMADJA, G SMIRNOVA, O SMITH, GR SOKOLOV, A and SOSNOWSKI, R SOUZASANTOS, D SPASSOV, T SPIRITI, E and SCUARCIA, S STAECK, H STANESCU, C STAPNES, S STAVITSKI, I STAVROPOULOS, G STEPANIAK, K STICHELBAUT, F STOCCHI, A and STRAUSS, J STRAVER, J STRUB, R STUGU, B SZCZEKOWSKI, M SZEPTYCKA, M TABARELLI, T TCHIKILEV, O THEODOSIOU, GE and THOME, Z TILQUIN, A TIMMERMANS, J TIMOFEEV, VG and TKATCHEV, LG TODOROV, T TOET, DZ TOMARADZE, A TOME, B and TORASSA, E TORTORA, L TRANSTROMER, G TREILLE, D and TRISCHUK, W TRISTRAM, G TRONCON, C TSIROU, A TSYGANOV, EN TURALA, M TURLUER, ML TUUVA, T TYAPKIN, IA and TYNDEL, M TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S and ULLALAND, O UVAROV, V VALENTI, G VALLAZZA, E FERRER, JAV and VANDERVELDE, C VANAPELDOORN, GW VANDAM, P VANDONINCK, WK and VANELDIK, J VEGNI, G VENTURA, L VENUS, W VERBEURE, F and VERLATO, M VERTOGRADOV, LS VILANOVA, D VINCENT, P and VITALE, L VLASOV, E VODOPYANOV, AS VOLLMER, M and VOUTILAINEN, M VRBA, V WAHLEN, H WALCK, C WALDNER, F and WEHR, A WEIERSTALL, M WEILHAMMER, P WETHERELL, AM and WICKENS, JH WIELERS, M WILKINSON, GR WILLIAMS, WSC and WINTER, M WITEK, M WORMSER, G WOSCHNAGG, K YIP, K and YUSHCHENKO, O ZACH, F ZAITSEV, A ZALEWSKA, A ZALEWSKI, P and ZAVRTANIK, D ZEVGOLATAKOS, E ZIMIN, NI ZITO, M and ZONTAR, D ZUBERI, R ZUCCHELLI, GC ZUMERLE, G
Subjects: High Energy Physics::Lattice, High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: For the first time, multihadronic production from single tagged gamma gamma collisions has been studied, where one of the scattered leptons was tagged at very low virtual photon absolute mass squared ([Q(2)] = 0.06 (GeV/c(2))(2)). Data collected during 1991 and 1992 in the DELPHI experiment at LEP are shown to agree well with predictions which included the non-perturbative vector meson dominance model in which the interacting photons are assumed to have converted into a vector meson (rho, omega or pi), a quark-parton model which describes direct photon interactions and a QCD-based model which considers the photon to have quark and gluon structure functions. Five different parametrizations of these structure functions were used and the predictions compared with the data. This study confirms recent results from no-tag experiments in requiring a QCD-based component to successfully describe the data, indicating that the photon has a significant partonic content.
Published: 1995

7. A study of radiative muon-pair events at Z(0) energies and limits on an additional Z' gauge boson

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, L, Aleksan, R, Alekseev, Gd, Allport, Pp, Almehed, S, Almeida, Fml, Alvsvaag, Sj, Amaldi, U, Andreazza, A, Antilogus, P, Apel, Wd, Apsimon, Rj, 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, Beltran, P, Benvenuti, Ac, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, Ms, Billoir, P, Bjarne, J, Bloch, D, Blocki, J, Blyth, S, Bocci, V, Bogolubov, Pn, Bolognese, T, Bonesini, M, Bonivento, W, Booth, Psl, Borisov, G, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, Tjv, Bozzo, M, Braibant, S, Branchini, P, Brand, Kd, Brenner, Ra, Briand, H, Bricman, C, Brillault, L, Brown, Rca, Brunet, Jm, Bugge, L, Buran, T, Buys, A, Buytaert, Jama, Caccia, Massimo, Calvi, M, Rozas, Ajc, Campion, R, Camporesi, T, Canale, V, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Cases, R, Caso, C, Gimenez, Mvc, Cattai, A, Cavallo, Fr, Cerrito, L, Chabaud, V, Chan, A, Chapkin, M, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, Ga, Chliapnikov, P, Chorowicz, V, Chrin, Jtm, Cindro, V, Collins, P, Contreras, Jl, Contri, R, Cortina, E, Cosme, G, Cosmo, G, Cossutti, C, Couchot, F, Crawley, Hb, Crennell, D, Crosetti, G, Maestro, Jc, Czellar, S, Dahljensen, E, Dahm, J, Dalmagne, B, Dam, M, Damgaard, G, Daubie, E, Daum, A, Dauncey, Pd, Davenport, M, Davies, J, Dasilva, W, Defoix, C, Delpierre, P, Demaria, N, Deangelis, A, Deboeck, H, Deboer, W, Debrabandere, S, Declercq, C, Laso, Mdmf, Delavaissiere, C, Delotto, B, Demin, A, Depaula, L, Desaintjean, C, Dijkstra, H, Diciaccio, L, Djama, F, Dolbeau, J, Donszelmann, M, Doroba, K, Dracos, M, Dress, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D, Ehret, R, Ekelof, T, Ekspong, G, Elsing, M, Engel, Jp, Ershaidat, N, Santo, Me, Fassouliotis, D, Feindt, M, Fenyuk, A, Ferrer, A, Filippas, Ta, Firestone, A, Foeth, H, Fokitis, E, Fontanelli, F, Formenti, F, Fousset, Jl, Franek, B, Frenkiel, P, Fries, Dc, Frodesen, Ag, Fruhwirth, R, Fuldaquenzer, F, Furstenau, H, Fuster, J, Gamba, D, Gandelman, M, Garcia, C, Garcia, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, En, Gele, D, Gerber, Jp, Giacomelli, P, Gillespie, D, Gokieli, R, Golob, B, Golovatyuk, Vm, Gomez, Jj, Cadenas, Y, Gopal, G, Gorn, L, Gorski, M, Gracco, V, Grard, F, Graziani, E, Grosdidier, G, Gunnarsson, P, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Hao, W, Harris, Fj, Hedberg, V, Henriques, R, Hermandez, Jj, Hernando, Ja, Herquet, P, Herr, H, Hessing, Tl, Higon, E, Hilke, Hj, Hill, Ts, Holmgren, So, Holt, Pj, Holthuizen, D, Honore, Pf, Houlden, M, Hrubec, J, Huet, K, Hultqvist, K, Ioanou, P, Iversen, Ps, Jackson, Jn, Jacobsson, R, Jalocha, P, Jarlskog, G, Jarry, P, Jeanmarie, B, Johansson, Ek, Jonker, M, Jonsson, L, 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, Kochmehrin, A, Koehne, Jh, Koene, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Korytov, Av, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Kramer, Ph, Krammer, M, Kreuter, C, Krolikowski, J, Kronkvist, I, Krupinski, W, Kulka, K, Kurvinen, K, Lacasta, C, Laktineh, I, Lambropoulos, C, Lamsa, Jw, Lanceri, L, Langefeld, P, Lapin, V, Last, I, Laugier, Jp, Lauhakangas, R, Leder, G, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Levy, Jm, Lieb, E, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Loerstad, B, Lokajicek, M, Loken, Jg, Lopezfernandez, A, Lopezaguera, Ma, Los, M, Loukas, D, Lozano, Jj, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Marechal, B, Margoni, M, Marin, Jc, Mariotti, C, Markou, A, Maron, T, Marti, S, Martinezrivero, C, Martinezvidal, F, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, M, Cubbin, Mm, Kay, Rm, Nulty, Rm, Medbo, J, Meroni, C, Meyer, Wt, Michelotto, M, Migliore, E, Mikulec, I, Mirabito, L, Mitaroff, Wa, Mitselmakher, Gv, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, Mr, Morettini, P, Mueller, H, Murray, Wj, Muryn, B, Myatt, G, Naraghi, F, Navarria, Fl, Negri, P, Nemecek, S, Neumann, W, Nicolaidou, R, Nielsen, Bs, Niss, P, Nomerotski, A, Normand, A, Obraztsov, V, Olshevski, Af, Orava, R, Osterberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pain, R, Palka, H, Papadopoulou, Td, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Pernegger, H, Pernicka, M, Perrota, 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, 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, Roos, L, Rosenberg, Ei, Rosso, E, Roudeau, P, Rovelli, T, Ruckstuhl, W, Ruhlmannkleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Y, Sajot, G, Salt, J, Sanchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, Mae, Sciolla, G, Scuri, F, Segar, Am, Seitz, A, Sekulin, R, Seufert, R, Shellard, Rc, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sisakian, An, 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, Stavropoulos, G, Stepaniak, K, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Tchikilev, O, Theodosiou, Ge, Thome, Z, Tilquin, A, Timmermans, J, Timofeev, Vg, Tkatchev, Lg, Todorov, T, Toet, Dz, Tomaradze, A, Tome, B, Torassa, E, Tortora, L, Transtromer, G, Treille, D, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A, Tsyganov, En, Turala, M, Turluer, Ml, Tuuva, T, Tyapkin, Ia, Tyndel, M, Tzamarias, S, Ueberschaer, B, Ueberschaer, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Ferrer, Jav, Velde, Cv, Vanapeldoorn, Gw, Vandam, P, Vanderheijden, M, Vandoninck, Wk, Vaneldik, J, Vaz, P, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, Ls, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, As, Vollmer, M, Voutilainen, M, Wahlen, H, Walck, C, Wehr, A, Weierstall, M, Weilhammer, P, Wetherell, Am, Wickens, Jh, Wielers, M, Wilkinson, Gr, Williams, Wsc, Winter, M, Witek, M, Wormser, G, Woschnagg, K, Yip, K, Yushchenko, O, Zach, F, Zaitsev, A, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, Ni, Zito, M, Zontar, D, Zuberi, R, and Zumerle, G.
Subjects: radiative photon, muon pair cross section, DELPHI
Published: 1995

8. OBSERVATION OF ORBITALLY EXCITED B-MESONS

Author: ABREU, P ADAM, W ADYE, T AGASI, E AJINENKO, I and ALEKSAN, R ALEKSEEV, GD ALLPORT, PP ALMEHED, S ALMEIDA, FML ALVSVAAG, SJ AMALDI, U AMATO, S ANDREAZZA, A and ANDRIEUX, ML ANTILOGUS, P APEL, WD ARNOUD, Y ASMAN, B and AUGUSTIN, JE AUGUSTINUS, A BAILLON, P BAMBADE, P and BARAO, F BARATE, R BARBIELLINI, G BARDIN, DY BARKER, GJ and BARONCELLI, A BARRING, O BARRIO, JA BARTL, W BATES, MJ BATTAGLIA, M BAUBILLIER, M BAUDOT, J BECKS, KH and BEGALLI, M BEILLIERE, P BELOKOPYTOV, Y BELTRAN, P and BENVENUTI, AC BERGGREN, M BERTRAND, D BIANCHI, F BIGI, M and BILENKY, MS BILLOIR, P BJARNE, J BLOCH, D BLUME, M and BLYTH, S BOCCI, V BOLOGNESE, T BONESINI, M and BONIVENTO, W BOOTH, PSL BORISOV, G BOSIO, C BOSTJANCIC, B BOSWORTH, S BOTNER, O BOUQUET, B BOURDARIOS, C and BOWCOCK, TJV BOZZO, M BRANCHINI, P BRAND, KD BRENNER, RA and BRIAND, H BRICMAN, C BRILLAULT, L BROWN, RCA and BRUCKMAN, P BRUNET, JM BUGGE, L BURAN, T BUYS, A and CACCIA, M CALVI, M ROZAS, AJC CAMPORESI, T CANALE, V and CANEPA, M CANKOCAK, K CAO, F CARENA, F CARRILHO, P and CARROLL, L CASO, C CASSIO, V GIMENEZ, MVC CATTAI, A and CAVALLO, FR CERRITO, L CHABAUD, V CHAN, A CHARPENTIER, P and CHAUSSARD, L CHAUVEAU, J CHECCHIA, P CHELKOV, GA and CHLIAPNIKOV, P CHOCHULA, P CHOROWICZ, V CHRIN, JTM and CINDRO, V COLLINS, P CONTRERAS, JL CONTRI, R CORTINA, E and COSME, G COSSUTTI, F CRAWLEY, HB CRENNELL, D and CROSETTI, G MAESTRO, JC CZELLAR, S DAHLJENSEN, E DAHM, J and DALMAGNE, B DAM, M DAMGAARD, G DAUM, A DAUNCEY, PD and DAVENPORT, M DASILVA, W DEFOIX, C DELLARICCA, G and DELPIERRE, P DEMARIA, N DEANGELIS, A DEBOECK, H DEBOER, W DEBRABANDERE, S DECLERCQ, C LASO, MDMF DELAVAISSIERE, C DELOTTO, B DEMIN, A DEPAULA, L DESAINTJEAN, C and DIJKSTRA, H DICIACCIO, L DJAMA, F DOLBEAU, J and DONSZELMANN, M DOROBA, K DRACOS, M DRESS, J DREES, KA and DRIS, M DUFOUR, Y DUPONT, F EDSALL, D EHRET, R and EKELOF, T EKSPONG, G ELSING, M ENGEL, JP ERSHAIDAT, N and SANTO, ME FASSOULIOTIS, D FEINDT, M FENYUK, A and FERRER, A FILIPPAS, TA FIRESTONE, A FOETH, H FOKITIS, E and FONTANELLI, F FORMENTI, F FOUSSET, JL FRANEK, B and FRENKIEL, P FRIES, DC FRODESEN, AG FRUHWIRTH, R and FULDAQUENZER, F FURSTENAU, H FUSTER, J GAMBA, D and GANDELMAN, M GARCIA, C GARCIA, J GASPAR, C GASPARINI, U and GAVILLET, P GAZIS, EN GELE, D GERBER, JP GILLESPIE, D GOKIELI, R GOLOB, B CADENAS, JJGY GOPAL, G GORN, L and GORSKI, M GRACCO, V GRARD, F GRAZIANI, E GROSDIDIER, G GUNNARSSON, P GUY, J HAEDINGER, U HAHN, E HAHN, M and HAHN, S HAIDER, S HAJDUK, Z HAKANSSON, A HALLGREN, A and HAMACHER, K HAO, W HARRIS, FJ HEDBERG, V HENRIQUES, R HERNANDEZ, JJ HERNANDO, JA HERQUET, P HERR, H and HESSING, TL HIGON, E HILKE, HJ HILL, TS HOLMGREN, SO and HOLT, PJ HOLTHUIZEN, D HONORE, PF HOULDEN, M HRUBEC, J and HUET, K HULTQVIST, K IOANNOU, P JACKSON, JN and JACOBSSON, R JALOCHA, P JANIK, R JARLSKOG, G JARRY, P and JEANMARIE, B JOHANSSON, EK JONSSON, L JUILLOT, P and KAISER, M KALMUS, G KAPUSTA, F KARLSSON, M KARVELAS, E and KATSANEVAS, S KATSOUFIS, EC KERANEN, R KHOMENKO, BA and KHOVANSKI, NN KING, B KJAER, NJ KLEIN, H KLOVNING, A and KLUIT, P KOEHNE, JH KOENE, B KOKKINIAS, P KORATZINOS, M and KOSTIOUKHINE, V KOURKOUMELIS, C KOUZNETSOV, O KRAMER, PH and KRAMMER, M KREUTER, C KROLIKOWSKI, J KRONKVIST, I and KRUMSTEIN, Z KRUPINSKI, W KUBINEC, P KUCEWICZ, W KULKA, K KURVINEN, K LACASTA, C LAKTINEH, I LAMBROPOULOS, C and LAMSA, JW LANCERI, L LANE, DW LANGEFELD, P LAPIN, V and LAST, I LAUGIER, JP LAUHAKANGAS, R LEDER, G LEDROIT, F and LEFEBURE, V LEGAN, CK LEITNER, R LEMOIGNE, Y and LEMONNE, J LENZEN, G LEPELTIER, V LESIAK, T LINDNER, R and LIPNIACKA, A LIPPI, I LOERSTAD, B LOKAJICEK, M and LOKEN, JG LOPEZFERNANDEZ, A AGUERA, MAL LOUKAS, D and LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G MAILLARD, J and MAIO, A MALTEZOS, A MALYCHEV, V MANDL, F MARCO, J and MARECHAL, B MARGONI, M MARIN, JC MARIOTTI, C MARKOU, A and MARON, T MARTINEZRIVERO, C MARTINEZVIDAL, F MARTI, SIG and MATORRAS, F MATTEUZZI, C MATTHIAE, G MAZZUCATO, M and MCCUBBIN, M MCKAY, R MCNULTY, R MEDBO, J MERONI, C and MEYER, WT MICHELOTTO, M MIGLIORE, E MIKULEC, I MIRABITO, L MITAROFF, WA MJOERNMARK, U MOA, T MOELLER, R and MOENIG, K MONGE, MR MORETTINI, P MUELLER, H MURRAY, WJ and MURYN, B MYATT, G NARAGHI, F NAVARRIA, FL NAVAS, S and NEGRI, P NEMECEK, S NEUMANN, W NEUMEISTER, N and NICOLAIDOU, R NIELSEN, BS NIKOLAENKO, V NISS, P and NOMEROTSKI, A NORMAND, A OBERSCHULTEBECKMANN, W OBRAZTSOV, V and OLSHEVSKI, AG ORAVA, R OSTERBERG, K OURAOU, A and PAGANINI, P PAGANONI, M PAGES, P PAIN, R PALKA, H and PAPADOPOULOU, TD PAPE, L PARODI, F PASSERI, A PEGORARO, M PENNANEN, J PERALTA, L PEREVOZCHIKOV, V PERNEGGER, H and PERNICKA, M PERROTTA, A PETRIDOU, C PETROLINI, A and PHILLIPS, HT PIANA, G PIERRE, F PIMENTA, M PLASZCZYNSKI, S PODOBRIN, O POL, ME POLOK, G POROPAT, P POZDNIKOV, V PREST, M PRIVITERA, P PULLIA, A RADOJICIC, D and RAGAZZI, S RAHMANI, H RAMES, J RATOFF, PN READ, AL and REALE, M REBECCHI, P REDAELLI, NG REGLER, M REID, D and RENTON, PB RESVANIS, LK RICHARD, F RICHARDSON, J RIDKY, J RINAUDO, G RIPP, I ROMERO, A RONCAGLIOLO, I and RONCHESE, P RONJIN, V ROOS, L ROSENBERG, EI ROSSO, E and ROUDEAU, P ROVELLI, T RUCKSTUHL, W RUHLMANNKLEIDER, V and RUIZ, A RYBICKI, K SAARIKKO, H SACQUIN, Y SADOVSKY, A and SAJOT, G SALT, J SANCHEZ, J SANNINO, M SCHNEIDER, H and SCHYNS, MAE SCIOLLA, G SCURI, F SEDYKH, Y SEGAR, AM and SEITZ, A SEKULIN, R SHELLARD, RC SICCAMA, I and SIEGRIST, P SIMONETTI, S SIMONETTO, F SISAKIAN, AN and SITAR, B SKAALI, TB SMADJA, G SMIRNOV, N SMIRNOVA, O and SMITH, GR SOSNOWSKI, R SOUZASANTOS, D SPASSOV, T and SPIRITI, E SQUARCIA, S STAECK, H STANESCU, C STAPNES, S and STAVITSKI, L STAVROPOULOS, G STEPANIAK, K STICHELBAUT, F and STOCCHI, A STRAUSS, J STRUB, R STUGU, B SZCZEKOWSKI, M SZEPTYCKA, M TABARELLI, T TCHIKILEV, O THEODOSIOU, GE and TILQUIN, A TIMMERMANS, J TKATCHEV, LG TODOROV, T and TOET, DZ TOMARADZE, A TOME, B TORTORA, L TRANSTROMER, G and TREILLE, D TRISCHUK, W TRISTRAM, G TROMBINI, A and TRONCON, C TSIROU, A TURLUER, ML TUUVA, T TYAPKIN, IA and TYNDEL, M TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S and ULLALAND, O UVAROV, V VALENTI, G VALLAZZA, E FERRERM, JAV VANDERVELDE, C VANAPELDOORN, GW VANDAM, P and VANDONINCK, WK VANELDIK, J VEGNI, G VENTURA, L VENUS, W and VERBEURRE, F VERLATO, M VERTOGRADOV, LS VILANOVA, D and VINCENT, P VITALE, L VLASOV, E VODOPYANOV, AS and VOUTILAINEN, M VRBA, V WAHLEN, H WALCK, C WEHR, A and WEIERSTALL, M WEILHAMMER, P WETHERELL, AM WICKE, D and WICKENS, JH WIELERS, M WILKINSON, GR WILLIAMS, WSC and WINTER, M WITEK, M WORMSER, G WOSCHNAGG, K YIP, K and YU, L YUSHCHENKO, O ZACH, F ZAITSEV, A ZALEWSKA, A and ZALEWSKI, P ZAVRTANIK, D ZAVGOLATAKOS, E ZIMIN, NI ZITO, M ZONTAR, D ZUBERI, R ZUCCHELLI, GC ZUMERLE, G
Subjects: High Energy Physics::Experiment, Nuclear Experiment
Abstract: Experimental evidence for the existence of orbitally excited B meson states is presented in an analysis of the B pi and B*pi distribution of Q = m(B**) - m(B(*)) - m(pi) using Z(0) decay data taken with the DELPHI detector at LEP. The mean Q-value of the decays B** –> B(*)pi is measured to be 284 +/-5 (stat.) +/- 15 (syst.) MeV/c(2), and the Gaussian width of the signal is 79 +/- 5 (stat.) +/- 8 (syst) MeV/c(2). This signal can be described as a single resonance of mass m = 5732+/-5 (stat.) +/- 20(syst.) MeV/c(2) and full width Gamma = 145 +/- 28 MeV/c(2). The observed shape is also consistent with the production of several broad and narrow states as predicted by the quark model and partly observed in the D-meson sector. The production rate of B** per b-jet is found to be 0.27 +/- 0.02(stat.) +/- 0.06 (syst.).
Published: 1995

9. SEARCH FOR PAIR-PRODUCED HEAVY SCALARS IN Z(0) DECAYS

Author: Abreu, P., Adam, W., Adye, T., Agasi, E., Ajninenko, Ik, Aleksan, R., Alekseev, Gd, Allport, Pp, Almehed, S., Almeida, Fml, Alvsvaag, Sj, Amaldi, U., Andreazza, A., Antilogus, P., Apel, Wd, Apsimon, Rj, 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., Becks, Kh, Begalli, M., Beilliere, P., Beltran, P., Benvenuti, Ac, Berggren, M., Bertrand, D., Bianchi, F., Bigi, M., Bilenky, Ms, Billoir, P., Bjarne, J., Bloch, D., Blocki, J., Blyth, S., Bocci, V., Bogolubov, Pn, Bolognese, T., Bonesini, M., Bonivento, W., Booth, Psl, Borisov, G., Bosio, C., Bostjancic, B., Bosworth, S., Botner, O., Bouquet, B., Bourdarios, C., Bowcock, Tjv, Bozzo, M., Braibant, S., Branchini, P., Brand, Kd, Brenner, Ra, Briand, H., Bricman, C., Brillault, L., Brown, Rca, Bruckman, P., Brunet, Jm, Bugge, L., Buran, T., Buys, A., Buytaert, Jama, Caccia, M., Calvi, M., Rozas, Ajc, Campion, R., Camporesi, T., Canale, V., KEREM CANKOÇAK, Cao, F., Carena, F., Carrilho, P., Carroll, L., Cases, R., Caso, C., Castelli, E., Gimenez, Mvc, Cattai, A., Cavallo, Fr, Cerrito, L., Chabaud, V., Chan, A., Chapkin, M., Charpentier, P., Chauveau, J., Checchia, P., Chelkov, Ga, Chevalier, L., Chliapnikov, P., Chorowicz, V., Chrin, Jtm, Cindro, V., Collins, P., Contreras, Jl, Contri, R., Cortina, E., Cosme, G., Cosmo, G., Couchot, F., Crawley, Hb, Crennell, D., Crosetti, G., Maestro, Jc, Czellar, S., Dahljensen, E., Dahm, J., Dalmagne, B., Dam, M., Damgaard, G., Daubie, E., Daum, A., Dauncey, Pd, Davenport, M., Davies, J., Dasilva, W., Defoix, C., Delpierre, P., Demaria, N., Deangelis, A., Deboeck, H., Deboer, W., Debrabandere, S., Declercq, C., Laso, Mdmd, Delavaissiere, C., Delotto, B., Demin, A., Depaula, L., Dijkstra, H., Diciaccio, L., Djama, F., Dolbeau, J., Donszelmann, M., Doroba, K., Dracos, M., Drees, J., Dris, M., Dufour, Y., Dupont, F., Edsall, D., Ehret, R., Ekelof, T., Ekspong, G., Elsing, M., Engel, Jp, Ershaidat, N., Santo, Me, Falaleev, V., Fassouliotis, D., Feindt, M., Fenyuk, A., Ferrer, A., Filippas, Ta, Firestone, A., Foeth, H., Fokitis, E., Fontanelli, F., Formenti, F., Fousset, Jl, Francon, S., Franek, B., Frenkiel, P., Fries, Dc, Frodesen, Ag, Fruhwirth, R., Fuldaquenzer, F., Furstenau, H., Fuster, J., Gamba, D., Gandelman, M., Garcia, C., Garcia, J., Gaspar, C., Gasparini, U., Gavillet, P., Gazis, En, Gele, D., Gerber, Jp, Giacomelli, P., Gillespie, D., Gokieli, R., Golob, B., Golovatyuk, Vm, Cadenas, Jjgy, Gopal, G., Gorn, L., Gorski, M., Gracco, V., Grard, F., Graziani, E., Grosdidier, G., Gunnarsson, P., Guy, J., Haedinger, U., Hahn, F., Hahn, M., Hahn, S., Haider, S., Hajduk, Z., Hakansson, A., Hallgren, A., Hamacher, K., Demonchenault, Gh, Hao, W., Harris, Fj, Hedberg, V., Henriques, R., Hernandez, Jj, Hernando, Ja, Herquet, P., Herr, H., Hessing, Tl, Higon, E., Hilke, Hj, Hill, Ts, Holmgren, So, Holt, Pj, Holthuizen, D., Honore, Pf, Houlden, M., Hrubec, J., Huet, K., Hultqvist, K., Ioannou, P., Iversen, Ps, Jackson, Jn, Jacobsson, R., Jalocha, P., Jarlskog, G., Jarry, P., Jeanmarie, B., Johansson, Ek, Jonker, M., Jonsson, L., 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., Kochmehrin, A., Koehne, Jh, Koene, B., Kokkinias, P., Koratzinos, M., Korytov, Av, Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Kramer, Ph, Krammer, M., Kreuter, C., Krolikowski, J., Kronkvist, I., Krupinski, W., Kucewicz, W., Kulka, K., Kurvinen, K., Lacasta, C., Lambropoulos, C., Lamsa, Jw, Lanceri, L., Langefeld, P., Lapin, V., Last, I., Laugier, Jp, Lauhakangas, R., Leder, G., Ledroit, F., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Levy, Jm, Lieb, E., Liko, D., Lindner, R., Lipniacka, A., Lippi, I., Loerstad, B., Lokajicek, M., Loken, Jg, Lopezfernandez, A., Aguera, Mal, Los, M., Loukas, D., Lozano, Jj, Lutz, P., Lyons, L., Maehlum, G., Maillard, J., Maio, A., Maltezos, A., Mandl, F., Marco, J., Marechal, B., Margoni, M., Marin, Jc, Mariotti, C., Markou, A., Maron, T., Marti, S., Martinezrivero, C., Martinezvidal, F., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Medbo, J., Meroni, C., Meyer, Wt, Michelotto, M., Migliore, E., Mikulec, I., Mirabito, L., Mitaroff, Wa, Mitselmakher, Gv, Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., MONGE, MR, Morettini, P., Mueller, H., Murray, Wj, Muryn, B., Myatt, G., Naraghi, F., Navarria, Fl, Negri, P., Nemecek, S., Neumann, W., Neumeister, N., Nicolaidou, R., Nielsen, Bs, Nilsen, Pes, Niss, P., Nomerotski, A., Normand, A., Novak, M., Obraztsov, V., Olshevski, Ag, Orava, R., Osterberg, K., Ouraou, A., Paganini, P., Paganoni, M., Pain, R., Palka, H., Papadopoulou, Td, Pape, L., Parodi, F., Passeri, A., Pegoraro, M., Pennanen, J., Peralta, L., 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., Privitera, P., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., 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., Romero, A., Roncagliolo, I., Ronchese, P., Roos, L., Rosenberg, Ei, Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmannkleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sajot, G., Salt, J., Sanchez, J., Sannino, M., Schael, S., Schneider, H., Schyns, Mae, Sciolla, G., Scuri, F., Segar, Am, Seitz, A., Sekulin, R., Sessa, M., Seufert, R., Shellard, Rc, Siccama, I., Siegrist, P., Simonetti, S., Simonetto, F., Sisakian, An, 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., Stavropoulos, G., Stepaniak, K., Stichelbaut, F., Stocchi, A., Strauss, J., Straver, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Tchikilev, O., Theodosiou, Ge, Thome, Z., Tilquin, A., Timmermans, J., Timofeev, Vg, Tkatchev, Lg, Todorov, T., Toet, Dz, Tomaradze, A., Tome, B., Torassa, E., Tortora, L., Transtromer, G., Treille, D., Trischuk, W., Tristram, G., Troncon, C., Tsirou, A., Tsyganov, En, Turluer, Ml, Tuuva, T., Tyapkin, Ia, Tyndel, M., Tzamarias, S., Ueberschaer, B., Ueberschaer, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Ferrer, Jav, Vandervelde, C., Vanapeldoorn, Gw, Vandam, P., Vanderheijden, M., Vandoninck, Wk, Vaneldik, J., Vaz, P., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, Ls, Vilanova, D., Vincent, P., Vitale, L., Vlasov, E., Vodopyanov, As, Vollmer, M., Voutilainen, M., Wahlen, H., Walck, C., Wehr, A., Weierstall, M., Weilhammer, P., Wetherell, Am, Wickens, Jh, Wielers, M., Wilkinson, Gr, Williams, Wsc, Winter, M., Witek, M., Wormser, G., Woschnagg, K., Yip, K., Yushchenko, O., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, Ni, Zito, M., Zontar, D., Zuberi, R., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), UCL - SC/PHYS - Département de physique, and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Quark, Particle physics, E+E ANNIHILATION, Physics and Astronomy (miscellaneous), Hadron, Scalar (mathematics), CHARGED HIGGS, Elementary particle, 01 natural sciences, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Quantum field theory, 010306 general physics, Z0 DECAYS, TECHNIPIONS, PETRA, LEP, Engineering (miscellaneous), Boson, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Higgs boson, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A search for charged Higgs bosons decaying into quarks is described, based on statistics of around 1.7 million hadronic Zo decays detected in DELPHI. Despite the very high background from standard hadronic decays of the Zo, masses in the range up to 43.5 GeV/c2 are excluded at the 95% confidence level. After combination with a search for leptonic decays, this mass limit is extended to cover all branching ratios. A similar analysis sets new limits on the possible production of any pair-produced heavy scalar decaying into a pair of jets, such as neutral Higgs bosons in a two doublet scheme and diquarks. © 1994 Springer-Verlag.
Published: 1994

10. INTERFERENCE OF NEUTRAL KAONS IN THE HADRONIC DECAYS OF THE Z(0)

Author: ABREU, P ADAM, W ADYE, T AGASI, E AJINENKO, I and ALEKSAN, R ALEKSEEV, GD ALGERI, A ALLPORT, P ALMEHED, S and ALVSVAAG, SJ AMALDI, U ANDREAZZA, A ANTILOGUS, P and APEL, WD APSIMON, RJ ARNOUD, Y ASMAN, B AUGUSTIN, JE and AUGUSTINUS, A BAILLON, P BAMBADE, P BARAO, F BARATE, R and BARBIELLINI, G BARDIN, DY BARKER, GJ BARONCELLI, A and BARRING, O BARRIO, JA BARTL, W BATES, MJ BATTAGLIA, M and BAUBILLIER, M BEGALLI, M BEILLIERE, P BELTRAN, P and BENVENUTI, AC BERGGREN, M BERTRAND, D BIANCHI, F BIGI, M and BILENKY, MS BILLOIR, P BJARNE, J BLOCH, D BLOCKI, J and BLUME, M BLYTH, S BOCCI, V BOGOLUBOV, PN BOLOGNESE, T BONESINI, M BONIVENTO, W BOOTH, PSL BORISOV, G and BORNER, H BOSIO, C BOSTJANCIC, B BOSWORTH, S BOTNER, O and BOUQUET, B BOURDARIOS, C BOWCOCK, TJV BOZZO, M and BRAIBANT, S BRANCHINI, P BRAND, KD BRENKE, T BRENNER, RA and BRIAND, H BRICMAN, C BRILLAULT, L BROWN, RCA and BRUCKMAN, P BRUNET, JM BUDZIAK, A BUGGE, L BURAN, T and BURMEISTER, H BUYS, A BUYTAERT, JAMA CACCIA, M CALVI, M and ROZAS, AJC CAMPION, R CAMPORESI, T CANALE, V and CANKOCAK, K CAO, F CARENA, F CARROLL, L GIMENEZ, MVC and CATTAI, A CAVALLO, FR CERRITO, L CHABAUD, V CHAN, A and CHAPKIN, M CHARPENTIER, P CHAUVEAU, J CHECCHIA, P and CHELKOV, GA CHEVALIER, L CHLIAPNIKOV, P CHOROWICZ, V and CHRIN, JTM CINDRO, V COLLINS, P CONTRERAS, JL CONTRI, R and CORTINA, E COSME, G COUCHOT, F CRAWLEY, HB CRENNELL, D CROSETTI, G MAESTRO, JC CZELLAR, S DAHLJENSEN, E and DAHM, J DALMAGNE, B DAM, M DAMGAARD, G DAUBIE, E and DAUM, A DAUNCEY, PD DAVENPORT, M DAVIES, J DASILVA, W and DEFOIX, C DELPIERRE, P DEMARIA, N DEANGELIS, A and DEBOECK, H DEBOER, W DEBRABANDERE, S DECLERCQ, C LASO, MDMD DELAVAISSIERE, C DELOTTO, B DEMIN, A DIJKSTRA, H and DICIACCIO, L DJAMA, F DOLBEAU, J DONSZELMANN, M and DOROBA, K DRACOS, M DREES, J DRIS, M DUFOUR, Y and DUPONT, F EDSALL, D EEK, LO EEROLA, PAM EHRET, R and EKELOF, T EKSPONG, G PEISERT, AE ELSING, M ENGEL, JP and ERSHAIDAT, N SANTO, ME FALALEEV, V FASSOULIOTIS, D and FEINDT, M FENYUK, A FERRER, A FILIPPAS, TA FIRESTONE, A and FOETH, H FOKITIS, E FONTANELLI, F FORBES, KAJ and FOUSSET, JL FRANCON, S FRANEK, B FRENKIEL, P FRIES, DC and FRODESEN, AG FRUHWIRTH, R FULDAQUENZER, F FURSTENAU, H and FUSTER, J GAMBA, D GANDELMAN, M GARCIA, C GARCIA, J and GASPAR, C GASPARINI, U GAVILLET, P GAZIS, EN GERBER, JP GIACOMELLI, P GILLESPIE, D GOKIELI, R GOLOB, B and GOLOVATYUK, VM CADENAS, JJGY GOPAL, G GORN, L GORSKI, M and GRACCO, V GRANT, A GRARD, F GRAZIANI, E GROSDIDIER, G GROSS, E GROSSETETE, B GUNNARSSON, P GUY, J and HAEDINGER, U HAHN, F HAHN, M HAHN, S HAIDER, S and HAJDUK, Z HAKANSSON, A HALLGREN, A HAMACHER, K and DEMONCHENAULT, GH HAO, W HARRIS, FJ HEDBERG, V HENKES, T and HENRIQUES, R HERNANDEZ, JJ HERNANDO, JA HERQUET, P and HERR, H HESSING, TL HIETANEN, I HIGGINS, CO HIGON, E and HILKE, HJ HILL, TS HODGSON, SD HOFMOKL, T HOLMGREN, SO and HOLT, PJ HOLTHUIZEN, D HONORE, PF HOULDEN, M HRUBEC, J HUET, K HULTQVIST, K IOANNOU, P IVERSEN, PS and JACKSON, JN JACOBSSON, R JALOCHA, P JARLSKOG, G JARRY, P and JEANMARIE, B JOHANSSON, EK JONKER, M JONSSON, L and JUILLOT, P KALKANIS, G KALMUS, G KAPUSTA, F KARLSSON, M and KARVELAS, E KATSANEVAS, S KATSOUFIS, EC KERANEN, R and KHOMENKO, BA KHOVANSKI, NN KING, B KJAER, NJ KLEIN, H and KLOVNING, A KLUIT, P KOCHMEHRIN, A KOEHNE, JH KOENE, B KOKKINIAS, P KORATZINOS, M KORYTOV, AV KOSTIOUKHINE, V and KOURKOUMELIS, C KOUZNETSOV, O KRAMER, PH KRAMMER, M and KREUTER, C KROLIKOWSKI, J KRONKVIST, I KUCEWICZ, W and KULKA, K KURVINEN, K LACASTA, C LAMBROPOULOS, C LAMSA, JW LANCERI, L LANGEFELD, P LAPIN, V LAST, I LAUGIER, JP LAUHAKANGAS, R LEDER, G LEDROIT, F LEITNER, R and LEMOIGNE, Y LEMONNE, J LENZEN, G LEPELTIER, V LEVY, JM and LIEB, E LIKO, D LINDGREN, J LINDNER, R LIPNIACKA, A and LIPPI, I LOERSTAD, B LOKAJICEK, M LOKEN, JG and LOPEZFERNANDEZ, A AGUERA, MAL LOS, M LOUKAS, D LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G MAILLARD, J MAIO, A and MALTEZOS, A MARCO, J MARGONI, M MARIN, JC MARIOTTI, C MARKOU, A MARON, T MARTI, S MARTINEZRIVERO, C and MARTINEZVIDAL, F MATORRAS, F MATTEUZZI, C MATTHIAE, G and MAZZUCATO, M MCCUBBIN, M MCKAY, R MCNULTY, R MEDBO, J and MERONI, C MEYER, WT MICHELOTTO, M MIKULEC, I and MIRABITO, L MITAROFF, WA MITSELMAKHER, GV MJOERNMARK, U and MOA, T MOELLER, R MOENIG, K MONGE, MR MORETTINI, P and MUELLER, H MURRAY, WJ MURYN, B MYATT, G NARAGHI, F and NAVARRIA, FL NEGRI, P NEMECEK, S NEUMANN, W NEUMEISTER, N NICOLAIDOU, R NIELSEN, BS NILSEN, PES NISS, P and NOMEROTSKI, A OBRAZTSOV, V OLSHEVSKI, AG ORAVA, R and OSTANKOV, A OSTERBERG, K OURAOU, A PAGANINI, P PAGANONI, M PAIN, R PALKA, H PAPADOPOULOU, TD PAPE, L PARODI, F PASSERI, A PEGORARO, M PENNANEN, J PERALTA, L and PERNEGGER, H PERNICKA, M PERROTTA, A PETRIDOU, C and PETROLINI, A PIANA, G PIERRE, F PIMENTA, M PLASZCZYNSKI, S PODOBRIN, O POL, ME POLOK, G POROPAT, P and POZDNIAKOV, V PREST, M PRIVITERA, P PULLIA, A RADOJICIC, D RAGAZZI, S RAHMANI, H RAMES, J RATOFF, PN READ, AL and REALE, M REBECCHI, P REDAELLI, NG REGLER, M REID, D and RENTON, PB RESVANIS, LK RICHARD, F RICHARDSON, J and RIDKY, J RINAUDO, G ROMERO, A RONCAGLIOLO, I RONCHESE, P and RONNQVIST, C ROSENBERG, EI ROSSO, E ROUDEAU, P and ROVELLI, T RUCKSTUHL, W RUHLMANNKLEIDER, V RUIZ, A and RYBICKI, K RYBIN, A SAARIKKO, H SACQUIN, Y SAJOT, G and SALT, J SANCHEZ, J SANNINO, M SCHAEL, S SCHNEIDER, H and SCHYNS, MAE SCIOLLA, G SCURI, F SEGAR, AM SEITZ, A and SEKULIN, R SESSA, M SEUFERT, R SHELLARD, RC SICCAMA, I and SIEGRIST, P SIMONETTI, S SIMONETTO, F SISAKIAN, AN and SKJEVLING, G SMADJA, G SMIRNOV, N SMIRNOVA, O SMITH, GR and SOSNOWSKI, R SOUZASANTOS, D SPASSOV, T SPIRITI, E and SQUARCIA, S STANESCU, C STAPNES, S STAVROPOULOS, G and STICHELBAUT, F STOCCHI, A STRAUSS, J STRAVER, J STRUB, R and STUGU, B SZCZEKOWSKI, M SZEPTYCKA, M SZYMANSKI, P and TABARELLI, T TCHIKILEV, O THEODOSIOU, GE TILQUIN, A and TIMMERMANS, J TIMOFEEV, VG TKATCHEV, LG TODOROV, T TOET, DZ TOKER, O TOMARADZE, A TOME, B TORASSA, E TORTORA, L TREILLE, D TRISCHUK, W TRISTRAM, G TRONCON, C and TSIROU, A TSYGANOV, EN TURALA, M TURLUER, ML TUUVA, T and TYAPKIN, IA TYNDEL, M TZAMARIAS, S UEBERSCHAER, B and UEBERSCHAER, S ULLALAND, O VALENTI, G VALLAZZA, E and FERRER, JAV VANDERVELDE, C VANAPELDOORN, GW VANDAM, P and VANDERHEIJDEN, M VANDONINCK, WK VANELDIK, J VAZ, P and VEGNI, G VENTURA, L VENUS, W VERBEURE, F VERLATO, M and VERTOGRADOV, LS VILANOVA, D VINCENT, P VITALE, L VLASOV, E VODOPYANOV, AS VOLLMER, M VOUTILAINEN, M VRBA, V and WAHLEN, H WALCK, C WALDNER, F WEHR, A WEIERSTALL, M and WEILHAMMER, P WETHERELL, AM WICKENS, JH WIELERS, M and WILKINSON, GR WILLIAMS, WSC WINTER, M WORMSER, G and WOSCHNAGG, K ZAITSEV, A ZALEWSKA, A ZAVRTANIK, D and ZEVGOLATAKOS, E ZIMIN, NI ZITO, M ZONTAR, D ZUBERI, R and ZUMERLE, G ZUNIGA, J
Subjects: High Energy Physics::Experiment, Nuclear Experiment
Abstract: K(S)0K(S)0 correlations have been studied in a sample of 717 511 hadronic events collected by the DELPHI detector at LEP during 1992. An enhancement is found in the production of pairs of K(S)0 of similar momenta, as compared with a Monte Carlo simulated reference sample. The measured values for the strength of the correlation and the radius of the emitting source of kaons are lambda = 1.13 +/- 0.54 (stat) +/- 0.23 (syst) and r = 0.90 +/- 0.19 (stat) +/- 0.10 (syst) fm. This enhancement is consistent with the hypothesis that K(S)0K(S)0 pairs display an enhancement, regardless of whether they come from a K0K0BAR or from a K0K0 (K0K0BAR) system.
Published: 1994

11. IMPROVED MEASUREMENTS OF CROSS-SECTIONS AND ASYMMETRIES AT THE Z(0) RESONANCE

Author: ABREU, P ADAM, W ADYE, T AGASI, E AJINENKO, I and ALEKSAN, R ALEKSEEV, GD ALLPORT, P ALMEHED, S ALMEIDA, FML ALVSVAAG, SJ AMALDI, U ANDREAZZA, A ANTILOGUS, P and APEL, WD APSIMON, RJ ARNOUD, Y ASMAN, B AUGUSTIN, JE and AUGUSTINUS, A BAILLON, P BAMBADE, P BARAO, F BARATE, R and BARBIELLINI, G BARDIN, DY BARKER, GJ BARONCELLI, A and BARRING, O BARRIO, JA BARTL, W BATES, MJ BATTAGLIA, M and BAUBILLIER, M BECKS, KH BEGALLI, M BEILLIERE, P and BELOUS, K BELTRAN, P BENVENUTI, AC BERGGREN, M BERTRAND, D BIANCHI, F BIGI, M BILENKY, MS BILLOIR, P BJARNE, J BLOCH, D BLOCKI, J BLYTH, S BOCCI, V BOGOLUBOV, PN and BOLOGNESE, T BONESINI, M BONIVENTO, W BOOTH, PSL and BORISOV, G BOSIO, C BOSTJANCIC, B BOSWORTH, S BOTNER, O and BOUQUET, B BOURDARIOS, C BOWCOCK, TJV BOZZO, M and BRAIBANT, S BRANCHINI, P BRAND, KD BRENNER, RA BRIAND, H and BRICMAN, C BRILLAULT, L BROWN, RCA BRUNET, JM BUGGE, L BURAN, T BUYS, A BUYTAERT, JAMA CACCIA, M CALVI, M and ROZAS, AJC CAMPION, R CAMPORESI, T CANALE, V and CANKOCAK, K CAO, F CARENA, F CARRILHO, P CARROLL, L and CASES, R CASO, C GIMENEZ, MVC CATTAI, A CAVALLO, FR and CERRITO, L CHABAUD, V CHAN, A CHARPENTIER, P CHAUVEAU, J and CHECCHIA, P CHELKOV, GA CHEVALIER, L CHLIAPNIKOV, P and CHOROWICZ, V CHRIN, JTM CINDRO, V COLLINS, P CONTRERAS, JL CONTRI, R CORTINA, E COSME, G COUCHOT, F CRAWLEY, HB CRENNELL, D CROSETTI, G MAESTRO, JC CZELLAR, S and DAHLJENSEN, E DAHM, J DALMAGNE, B DAM, M DAMGAARD, G and DAUBIE, E DAUM, A DAUNCEY, PD DAVENPORT, M DAVIES, J and DASILVA, W DEFOIX, C DELLARICCA, G DELPIERRE, P DEMARIA, N DEANGELIS, A DEBOECK, H DEBOER, W DEBRABANDERE, S and DECLERCQ, C DEFEZLASO, MDM DELAVAISSIERE, C DELOTTO, B and DEMIN, A DEPAULA, L DIJKSTRA, H DICIACCIO, L DJAMA, F and DOLBEAU, J DONSZELMANN, M DOROBA, K DRACOS, M DREES, J DRIS, M DUFOUR, Y DUPONT, F EDSALL, D EEK, LO and EHRET, R EKELOF, T EKSPONG, G PEISERT, AE ELSING, M and ENGEL, JP ERSHAIDAT, N SANTO, ME FASSOULIOTIS, D FEINDT, M FERRER, A FILIPPAS, TA FIRESTONE, A FOETH, H and FOKITIS, E FONTANELLI, F FORBES, KAJ FORMENTI, F and FOUSSET, JL FRANCON, S FRANEK, B FRENKIEL, P FRIES, DC and FRODESEN, AG FRUHWIRTH, R FULDAQUENZER, F FURSTENAU, H and FUSTER, J GAMBA, D GANDELMAN, M GARCIA, C GARCIA, J and GASPAR, C GASPARINI, U GAVILLET, P GAZIS, EN GERBER, JP GERDYUKOV, L GIACOMELLI, P GILLESPIE, D GOKIELI, R and GOLOB, B GOLOVATYUK, VM CADENAS, JJGY GOPAL, G GORN, L GORSKI, M GRACCO, V GRARD, F GRAZIANI, E and GROSDIDIER, G GROSSETETE, B GUNNARSSON, P GUY, J and HAEDINGER, U HAHN, F HAHN, M HAHN, S HAIDER, S and HAJDUK, Z HAKANSSON, A HALLGREN, A HAMACHER, K and DEMONCHENAULT, GH HAO, W HARRIS, FJ HEDBERG, V and HENRIQUES, R HERNANDEZ, JJ HERNANDO, JA HERQUET, P HERR, H HESSING, TL HIGGINS, CO HIGON, E HILKE, HJ HILL, TS HODGSON, SD HOLMGREN, SO HOLT, PJ HOLTHUIZEN, D and HONORE, PF HOULDEN, M HRUBEC, J HUET, K HULTQVIST, K and IOANNOU, P IVERSEN, PS JACKSON, JN JACOBSSON, R JALOCHA, P JARLSKOG, G JARRY, P JEANMARIE, B JOHANSSON, EK and JONKER, M JONSSON, L JUILLOT, P KAISER, M KALMUS, G and KAPUSTA, F KARLSSON, M KARVELAS, E KATSANEVAS, S and KATSOUFIS, EC KERANEN, R KHOMENKO, BA KHOVANSKI, NN and KING, B KJAER, NJ KLEIN, H KLOVNING, A KLUIT, P and KOCHMEHRIN, A KOEHNE, JH KOENE, B KOKKINIAS, P and KORATZINOS, M KORCYL, K KORYTOV, AV KOSTIOUKHINE, V and KOURKOUMELIS, C KOUZNETSOV, O KRAMER, PH KRAMMER, M and KREUTER, C KROLIKOWSKI, J KRONKVIST, I KRUPINSKI, W and KULKA, K KURVINEN, K LACASTA, C LAMBROPOULOS, C LAMSA, JW LANCERI, L LANGEFELD, P LAPIN, V LAST, I LAUGIER, JP LAUHAKANGAS, R LEDER, G LEDROIT, F LEITNER, R and LEMOIGNE, Y LEMONNE, J LENZEN, G LEPELTIER, V LESIAK, T and LEVY, JM LIEB, E LIKO, D LINDNER, R LIPNIACKA, A and LIPPI, I LOERSTAD, B LOKAJICEK, M LOKEN, JG and LOPEZFERNANDEZ, A AGUERA, MAL LOS, M LOUKAS, D LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G MAILLARD, J MAIO, A and MALTEZOS, A MANDL, F MARCO, J MARECHAL, B MARGONI, M and MARIN, JC MARIOTTI, C MARKOU, A MARON, T MARTI, S and MARTINEZRIVERO, C MARTINEZVIDAL, F MATORRAS, F and MATTEUZZI, C MATTHIAE, G MAZZUCATO, M MCCUBBIN, M MCKAY, R MCNULTY, R MEDBO, J MERONI, C MEYER, WT and MICHELOTTO, M MIGLIORE, E MIKULEC, I MIRABITO, L and MITAROFF, WA MITSELMAKHER, GV MJOERNMARK, U MOA, T and MOELLER, R MOENIG, K MONGE, MR MORETTINI, P MUELLER, H and MURRAY, WJ MURYN, B MYATT, G NARAGHI, F NAVARRIA, FL and NEGRI, P NEMECEK, S NEUMANN, W NEUMEISTER, N and NICOLAIDOU, R NIELSEN, BS NILSEN, PES NISS, P and NOMEROTSKI, A OBRAZTSOV, V OLSHEVSKI, AG ORAVA, R and OSTANKOV, A OSTERBERG, K OURAOU, A PAGANINI, P PAGANONI, M PAIN, R PALKA, H PAPADOPOULOU, TD PAPE, L PARODI, F PASSERI, A PEGORARO, M PENNANEN, J PERALTA, L and PERNEGGER, H PERNICKA, M PERROTTA, A PETROLINI, A PIANA, G PIERRE, F PIMENTA, M PLASZCZYNSKI, S PODOBRIN, O and POL, ME POLOK, G POROPAT, P POZDNIAKOV, V PREST, M and PRIVITERA, P PULLIA, A RADOJICIC, D RAGAZZI, S RAHMANI, H RAMES, J RATOFF, PN READ, AL REALE, M REBECCHI, P and REDAELLI, NG REID, D RENTON, PB RESVANIS, LK and RICHARD, F RICHARDSON, J RIDKY, J RINAUDO, G ROMERO, A and RONCAGLIOLO, I RONCHESE, P RONJIN, V ROSENBERG, EI and ROSSO, E ROUDEAU, P ROVELLI, T RUCKSTUHL, W and RUHLMANNKLEIDER, V RUIZ, A RYBICKI, K SAARIKKO, H and SACQUIN, Y SAJOT, G SALT, J SANCHEZ, J SANNINO, M and SCHAEL, S SCHNEIDER, H SCHYNS, MAE SCIOLLA, G SCURI, F and SEGAR, AM SEITZ, A SEKULIN, R SEUFERT, R SHELLARD, RC SICCAMA, I SIEGRIST, P SIMONETTI, S SIMONETTO, F and SISAKIAN, AN SKJEVLING, G SMADJA, G SMIRNOV, N SMIRNOVA, O SMITH, GR SOSNOWSKI, R SOUZASANTOS, D SPASSOV, T and SPIRITI, E SQUARCIA, S STAECK, H STANESCU, C STAPNES, S and STAVROPOULOS, G STEPANIAK, K STICHELBAUT, F STOCCHI, A and STRAUSS, J STRAVER, J STRUB, R STUGU, B SZCZEKOWSKI, M SZEPTYCKA, M SZYMANSKI, P TABARELLI, T TCHIKILEV, O and THEODOSIOU, GE THOME, Z TILQUIN, A TIMMERMANS, J and TIMOFEEV, VG TKATCHEV, LG TODOROV, T TOET, DZ TOMARADZE, A TOME, B TORASSA, E TORTORA, L TREILLE, D TRISCHUK, W TRISTRAM, G TRONCON, C TSIROU, A TSYGANOV, EN and TURALA, M TURLUER, ML TUUVA, T TYAPKIN, IA TYNDEL, M and TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S ULLALAND, O and UVAROV, V VALENTI, G VALLAZZA, E FERRER, JAV and VANDERVELDE, C VANAPELDOORN, GW VANDAM, P VANDERHEIJDEN, M and VANDONINCK, WK VANELDIK, J VAZ, P VEGNI, G VENTURA, L VENUS, W VERBEURE, F VERLATO, M VERTOGRADOV, LS and VILANOVA, D VINCENT, P VITALE, L VLASOV, E VODOPYANOV, AS VOLLMER, M VOUTILAINEN, M VRBA, V WAHLEN, H and WALCK, C WALDNER, F WEHR, A WEIERSTALL, M WEILHAMMER, P and WETHERELL, AM WICKENS, JH WIELERS, M WILKINSON, GR and WILLIAMS, WSC WINTER, M WITEK, M WORMSER, G WOSCHNAGG, K and ZAITSEV, A ZALEWSKA, A ZALEWSKI, P ZAVRTANIK, D and ZEVGOLATAKOS, E ZIMIN, NI ZITO, M ZONTAR, D ZUBERI, R and ZUMERLE, G ZUNIGA, J
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: During the 1992 running period of the LEP e+e- collider, the DELPHI experiment accumulated approximately 24 pb-1 of data at the Z0 peak. The decays into hadrons and charged leptons have been analysed to give values for the cross sections and leptonic forward-backward asymmetries which are significantly improved with respect to those previously published by the DELPHI collaboration. Incorporating these new data, more precise values for the Z0 resonance parameters are obtained from model-independent fits. The results are interpreted within the framework of the Standard Model, yielding for the top quark mass m(t) = 157(-48)+36(expt.)-20(+19)(Higgs) GeV, and for the effective mixing angle sin2 theta(eff)lept = 0.2328 +/- 0.0013 (expt.)-0.0003(+0.0001)(Higgs), where (Higgs) represents the variation due to Higgs boson mass in the range 60 to 1000 GeV, with central value 300 GeV.
Published: 1994

12. Measurement of the B-0-(b)over-bar-0 Mixing Parameter In Delphi

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, R, Alekseev, Gd, Allport, Pp, Almehed, S, Almeida, Fml, Alvsvaag, Sj, Amaldi, U, Andreazza, A, Antilogus, P, Apel, Wd, Apsimon, Rj, Arnoud, Y, Asman, B, Augustin, Je, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barate, R, Barbiellini, G, Bardin, Dy, Barker, Gj, Baroncelli, A, Barring, O, Barrio, Ja, Bartl, W, Bates, Mj, Battaglia, M, Baubillier, M, Becks, Kh, Begalli, M, Beilliere, P, Beltran, P, Benvenuti, Ac, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, Ms, Billoir, P, Bjarne, J, Bloch, D, Blocki, J, Blyth, S, Bocci, V, Bogolubov, Pn, Bolognese, T, Bonesini, M, Bonivento, W, Booth, Psl, Borisov, G, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, Tjv, Bozzo, M, Braibant, S, Branchini, P, Brand, Kd, Brenner, Ra, Briand, H, Bricman, C, Brillault, L, Brown, Rca, Brunet, Jm, Bugge, L, Buran, T, Buys, A, Buytaert, Jama, Caccia, Massimo, Calvi, M, Rozas, Ajc, Campion, R, Camporesi, T, Canale, V, Cankocak, K, Cao, F, Carena, F, Carrilho, P, Carroll, L, Cases, R, Caso, C, Gimenez, Mvc, Cattai, A, Cavallo, Fr, Cerrito, L, Chabaud, V, Chan, A, Charpentier, P, Chauveau, J, Checchia, P, Chelkov, Ga, Chevalier, L, Chliapnikov, P, Chorowicz, V, Chrin, Jtm, Cindro, V, Collins, P, Contreras, Jl, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, Hb, Crennell, D, Crosetti, G, Maestro, Jc, Czellar, S, Dahljensen, E, Dahm, J, Dalmagne, B, Dam, M, Damgaard, G, Daubie, E, Daum, A, Dauncey, Pd, Davenport, M, Davies, J, Dasilva, W, Defoix, C, Delpierre, P, Demaria, N, Deangelis, A, Deboeck, H, Deboer, W, Debrabandere, S, Declercq, C, Laso, Mdmd, Delavaissiere, C, Delotto, B, Demin, A, Depaula, L, Dijkstra, H, Diciaccio, L, Djama, F, Dolbeau, J, Donszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D, Ehret, R, Ekelof, T, Ekspong, G, Elsing, M, Engel, Jp, Ershaidat, N, Santo, Me, Falaleev, V, Fassouliotis, D, Feindt, M, Fenyuk, A, Ferrer, A, Filippas, Ta, Firestone, A, Foeth, H, Fokitis, E, Fontanelli, F, Formenti, F, Fousset, Jl, Francon, S, Franek, B, Frenkiel, P, Fries, Dc, Frodesen, Ag, Fuldaquenzer, F, Furstenau, H, Fuster, J, Gamba, D, Gandelman, M, Garcia, C, Garcia, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, En, Gele, D, Gerber, Jp, Giacomelli, P, Gillespie, D, Gokieli, R, Golob, B, Golovatyuk, Vm, Cadenas, Jjgy, Gopal, G, Gorn, L, Gorski, M, Gracco, V, Grard, F, Graziani, E, Grosdidier, G, Gunnarsson, P, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Demonchenault, Gh, Hao, W, Harris, Fj, Hedberg, V, Henriques, R, Hernandez, Jj, Hernando, Ja, Herquet, P, Herr, H, Hessing, Tl, Higon, E, Hilke, Hj, Hill, Ts, Holmgren, So, Holt, Pj, Holthuizen, D, Honore, Pf, Houlden, M, Hrubec, J, Huet, K, Hultqvist, K, Ioannou, P, Iversen, Ps, Jackson, Jn, Jacobsson, R, Jalocha, P, Jarlskog, G, Jarry, P, Jeanmarie, B, Johansson, Ek, Jonker, M, Jonsson, L, 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, Kochmehrin, A, Koehne, Jh, Koene, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Korytov, Av, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Kramer, Ph, Krammer, M, Kreuter, C, Krolikowski, J, Kronkvist, I, Krupinski, W, Kulka, K, Kurvinen, K, Lacasta, C, Lambropoulos, C, Lamsa, Jw, Lanceri, L, Langefeld, P, Lapin, V, Last, I, Laugier, Jp, Lauhakangas, R, Leder, G, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Levy, Jm, Lieb, E, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Lerstad, B, Lokajicek, M, Loken, Jg, Lopezfernandez, A, Aguera, Mal, Los, M, Loukas, D, Lozano, Jj, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Marechal, B, Margoni, M, Marin, Jc, Mariotti, C, Markou, A, Maron, T, Marti, S, Martinezrivero, C, Martinezvidal, F, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, M, Mccubbin, M, Mckay, R, Mcnulty, R, Medbo, J, Meroni, C, Meyer, Wt, Michelotto, M, Migliore, E, Mikulec, I, Mirabito, L, Mitaroff, Wa, Mitselmakher, Gv, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, Mr, Morettini, P, Mueller, H, Murray, Wj, Muryn, B, Myatt, G, Naraghi, F, Navarria, Fl, Negri, P, Nemecek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, Bs, Nikolaenko, V, Nilsen, Pes, Niss, P, Nomerotski, A, Normand, A, Novak, M, Obraztsov, V, Olshevski, Ag, Orava, R, Osterberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pain, R, Palka, H, Papadopoulou, Td, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, 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, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, Pn, Read, Al, Reale, M, Rebecchi, P, Redaelli, Ng, Reglre, M, Reid, D, Renton, Pb, Resvanis, Lk, Richard, F, Richardson, J, Ridky, J, Rinaudo, G, Romero, A, Roncagliolo, I, Ronchese, P, Roos, L, Rosenberg, Ei, Rosso, E, Roudeau, P, Rovelli, T, Ruckstruhl, W, Ruhlmannkleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Y, Sajot, G, Salt, J, Sanchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, Mae, Sciolla, G, Scuri, F, Segar, Am, Seitz, A, Sekulin, R, Sessa, M, Seufert, R, Shellard, Rc, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sisakian, An, Skjevling, G, 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, Stavropoulos, G, Stepaniak, K, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Tchilkilev, O, Theodosiou, Ge, Thome, Z, Tilquin, A, Timmermans, J, Timofeev, Vg, Tkatchev, Lg, Todorov, T, Toet, Dz, Tomaradze, A, Tome, B, Torassa, E, Tortora, L, Transtromer, G, Treille, D, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A, Tsyganov, En, Turala, M, Turluer, Ml, Tuuva, T, Tyapkin, Ia, Tyndel, M, Tzamarias, S, Ueberschaer, B, Ueberschaer, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Ferrer, Jav, Vandervelde, C, Vanapeldoorn, Gw, Vandam, P, Vanderheijden, M, Vandoninck, Wk, Vaneldik, J, Vaz, P, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, Ls, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, As, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wehr, A, Weierstall, M, Weilhammer, P, Wetherell, Am, Wickens, Jh, Wielers, M, Wilkinson, Gr, Williams, Wsc, Winter, M, Witek, M, Wormser, G, Woschnagg, K, Yip, K, Yushchenko, O, Zaitsev, A, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, Ni, Zito, M, Zontar, D, Zuberi, R, and Zumerle, G.
Subjects: COLLIDER, Z(0) DECAYS, BARYON PRODUCTION, HADRONIC DECAYS, RESONANCE, LIFETIME, LAMBDA, B0 mixing, LEP, b tagging technique, DELPHI
Abstract: A total of about 900 000 Z0 → qq decays have been analyzed to measure the B0B0 mixing probability. Two different b tagging techniques have been used: events with two leptons and events with one lepton and one Λ. From a combination of the two methods the average mixing parameter, χ, was determined to be (12.1±1.6(stat.)±0.4(syst.)±0.4(model)%. © 1994.
Published: 1994

13. MEASUREMENT OF TIME-DEPENDENT B-D(0) (B)OVER-BAR-D(0) MIXING

Author: ABREU, P ADAM, W ADYE, T AGASI, E AJINENKO, I and ALEKSAN, R ALEKSEEV, GD ALLPORT, PP ALMEHED, S ALMEIDA, FML ALVSVAAG, SJ AMALDI, U ANDREAZZA, A ANTILOGUS, P and APEL, WD APSIMON, RJ ARNOUD, Y ASMAN, B AUGUSTIN, JE and AUGUSTINUS, A BAILLON, P BAMBADE, P BARAO, F BARATE, R and BARDIN, DY BARKER, GJ BARONCELLI, A BARRING, O and BARRIO, JA BARTL, W BATES, MJ BATTAGLIA, M BAUBILLIER, M and BAUDOT, J BECKS, KH BEGALLI, M BEILLIERE, P BELOUS, K BELTRAN, P BENVENUTI, AC BERGGREN, M BERTRAND, D and BIANCHI, F BIGI, M BILENKY, MS BILLOIR, P BJARNE, J and BLOCH, D BLOCKI, J BLYTH, S BOCCI, V BOGOLUBOV, PN and BOLOGNESE, T BONESINI, M BONIVENTO, W BOOTH, PSL and BORISOV, G BOSIO, C BOSTJANCIC, B BOSWORTH, S BOTNER, O and BOUQUET, B BOURDARIOS, C BOWCOCK, TJV BOZZO, M and BRAIBANT, S BRANCHINI, P BRAND, KD BRENNER, RA BRIAND, H and BRICMAN, C BRILLAULT, L BROWN, RCA BRUCKMAN, P and BRUNET, JM BUGGE, L BURAN, T BUYS, A CACCIA, M and CALVI, M ROZAS, AJC CAMPION, R CAMPORESI, T CANALE, V and CANKOCAK, K CAO, F CARENA, F CARRILHO, P CARROLL, L and CASES, R CASO, C GIMENEZ, MV CATTAI, A CAVALLO, E and CERRITO, L CHABAUD, V CHAN, A CHARPENTIER, P and CHAUSSARD, L CHAUVEAU, J CHECCHIA, P CHELKOV, GA and CHLIAPNIKOV, P CHOROWICZ, V CHRIN, JTM CINDRO, V and COLLINS, P CONTRERAS, JL CONTRI, R CORTINA, E COSME, G and COSSUTTI, F COUCHOT, F CRAWLEY, HB CRENNELL, D and CROSETTI, G MAESTRO, JC CZELLAR, S DAHLJENSEN, E DAHM, J and DALMAGNE, B DAM, M DAMGAARD, G DAUBIE, E DAUM, A and DAUNCEY, PD DAVENPORT, M DAVIES, J DASILVA, W DEFOIX, C and DELLARICCA, G DELPIERRE, P DEMARIA, N DEANGELIS, A and DEBOECK, H DEBOER, W DEBRABANDERE, S DECLERCQ, C LASO, MDMD LAVAISSIERE, CD DELOTTO, B DEMIN, A DEPAULA, L and DESAINTJEAN, C DIJKSTRA, H DICIACCIO, L DJAMA, F and DOLBEAU, J DONSZELMANN, M DOROBA, K DRACOS, M DREES, J and DRIS, M DUFOUR, Y DUPONT, E EDSALL, D EHRET, R and EKELOF, T EKSPONG, G ELSING, M ENGEL, JP ERSHAIDAT, N and SANTO, ME FASSOULIOTIS, D FEINDT, M FERRER, A and FILIPPAS, TA FIRESTONE, A FOETH, H FOKITIS, E and FONTANELLI, E FORMENTI, F FOUSSET, JL FRANEK, B and FRENKIEL, P FRIES, DC FRODESEN, AG FRUHWIRTH, R and FULDAQUENZER, F FURSTENAU, H FUSTER, J GAMBA, D and GANDELMAN, M GARCIA, C GARCIA, J GASPAR, C GASPARINI, U and GAVILLET, P GAZIS, EN GELE, D GERBER, JP GILLESPIE, D GOKIELI, R GOLOB, B GOLOVATYUK, VM GOMEZ, JJ and CADENAS, Y GOPAL, G GORN, L GORSKI, M GRACCO, V and GRARD, F GRAZIANI, E GROSDIDIER, G GUNNARSSON, P GUY, J and HAEDINGER, U HAHN, F HAHN, S HAIDER, S HAJDUK, Z and HAKANSSON, A HALLGREN, A HAMACHER, K HAO, W HARRIS, FJ and HEDBERG, V HENRIQUES, R HERNANDEZ, JJ HERNANDO, JA and HERQUET, P HERR, H HESSING, TL HIGON, E HILKE, HJ and HILL, TS HOLMGREN, SO HOLT, PJ HOLTHUIZEN, D HONORE, PE and HOULDEN, M HRUBEC, J HUET, K HULTQVIST, K IOANNOU, P and IVERSEN, PS JACKSON, JN JACOBSSON, R JALOCHA, P and JARLSKOG, G JARRY, P JEANMARIE, B JOHANSSON, EK JONSSON, L JUILLOT, P KAISER, M KALMUS, G KAPUSTA, F and KARLSSON, M KARVELAS, E KATARGIN, A KATSANEVAS, S and KATSOUFIS, EC KERANEN, R KHOMENKO, BA KHOVANSKI, NN and KING, B KJAER, NJ KLEIN, H KLOVNING, A KLUIT, P and KOCHMEHRIN, A KOEHNE, JH KOENE, B KOKKINIAS, P and KORATZINOS, M KORYTOV, AV KOSTIOUKHINE, V KOURKOUMELIS, C and KOUZNETSOV, O KRAMER, PH KRAMMER, M KREUTER, C and KROLIKOWSKI, J KRONKVIST, I KRUPINSKI, W KUCEWICZ, W and KULKA, K KURVINEN, K LACASTA, C LAKTINEH, I and LAMBROPOULOS, C LAMSA, JW LANCERI, L LANGEFELD, P LAPIN, V LAST, I LAUGIER, JP LAUHAKANGAS, R LEDER, G and LEDROIT, F LEITNER, R LEMOIGNE, Y LEMONNE, J LENZEN, G and LEPELTIER, V LESIAK, T LEVY, JM LIEB, E LIKO, D and LINDNER, R LIPNIACKA, A LIPPI, I LOERSTAD, B LOKAJICEKJ, M LOKEN, JG LOPEZFERNANDEZ, A AGUERA, MAL LOS, M and LOUKAS, D LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G and MAILLARD, J MAIO, A MALTEZOS, A MANDL, F MARCO, J and MARECHAL, B MARGONI, M MARIN, JC MARIOTTI, C MARKOU, A and MARON, T MARTI, S MARTINEZRIVERO, C MARTINEZVIDAL, F and MATORRAS, F MATTEUZZI, C MATTHIAE, G MAZZUCATO, M and MCCUBBIN, M MCKAY, R MCNULTY, R MEDBO, J MERONI, C and MEYER, WT MICHELOTTO, M MIGLIORE, E MIKULEC, I MIRABITO, L MITAROFF, WA MITSELMAKHER, GV MJOERNMARK, U MOA, T and MOELLER, R MOENIG, K MONGE, MR MORETTINI, P MUELLER, H and MURRAY, WJ MURYN, B MYATT, G NARAGHI, F NAVARRIA, FL and NEGRI, P NEMECEK, S NEUMANN, W NICOLAIDOU, R and NIELSEN, BS NIKOLAENKO, V NISS, P NOMEROTSKI, A NORMAND, A OBRAZTSOV, V OLSHEVSKI, AG ORAVA, R OSTERBERG, K and OURAOU, A PAGANINI, P PAGANONI, M PAIN, R PALKA, H and PAPADOPOULOU, TD PAPE, L PARODI, F PASSERI, A PEGORARO, M PENNANEN, J PERALTA, L PEREVOZCHIKOV, V PERNEGGER, H and PERNICKA, M PERROTTA, A PETRIDOU, C PETROLINI, A and PHILLIPS, HT PIANA, G PIERRE, F PIMENTA, M PLASZCZYNSKI, S PODOBRIN, O POL, ME POLOK, G POROPAT, P and POZDNIAKOV, V PREST, M PRIVITERA, P PULLIA, A RADOJICIC, D RAGAZZI, S RAHMANI, H RAMES, J RATOFF, PN READ, AL and REALE, M REBECCHI, P REDAELLI, NG REGLER, M REID, D and RENTON, PB RESVANIS, LK RICHARD, F RICHARDSON, J and RIDKY, J RINAUDO, G RIPP, I ROMERO, A RONCAGLIOLO, I and RONCHESE, P ROOS, L ROSENBERG, EI ROSSO, E ROUDEAU, P and ROVELLI, T RUCKSTUHL, W RUHLMANNKLEIDER, V RUIZ, A and SAARIKKO, H SACQUIN, Y SAJOT, G SALT, J SANCHEZ, J and SANNINO, M SCHNEIDER, H SCHYNS, MAE SCIOLLA, G SCURI, F and SEGAR, AM SEITZ, A SEKULIN, R SEUFERT, R SHELLARD, RC SICCAMA, I SIEGRIST, P SIMONETTI, S SIMONETTO, F and SISAKIAN, AN SKAALI, TB SMADJA, G SMIRNOV, N SMIRNOVA, O and SMITH, GR SOSNOWSKI, R SOUZASANTOS, D SPASSOV, T and SPIRITI, E SQUARCIA, S STAECK, H STANESCU, C STAPNES, S and STAVITSKI, I STAVROPOULOS, G STEPANIAK, K STICHELBAUT, F and STOCCHI, A STRAUSS, J STRAVER, J STRUB, R STUGU, B and SZCZEKOWSKI, M SZEPTYCKA, M TABARELLI, T TCHIKILEV, O and THEODOSIOU, GE THOME, Z TILQUIN, A TIMMERMANS, J and TIMOFEEV, VG TKATCHEV, LG TODOROV, T TOET, DZ TOMARADZE, A TOME, B TORASSA, E TORTORA, L TRANSTROMER, G and TREILLE, D TRISCHUK, W TRISTRAM, G TRONCON, C TSIROU, A and TSYGANOV, EN TURLUER, ML TUUVA, T TYAPKIN, IA and TYNDEL, M TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S and ULLALAND, O UVAROV, V VALENTI, G VALLAZZA, E FERRER, JAV and VANDERVELDE, C VANAPELDOORN, GW VANDAM, P VANDERHEIJDEN, M VANDONINCK, WK VANELDIK, J VEGNI, G VENTURA, L and VENUS, W VERBEURE, F VERLATO, M VERTOGRADOV, LS and VILANOVA, D VINCENT, P VITALE, L VLASOV, E VODOPYANOV, AS VOLLMER, M VOUTILAINEN, M VRBA, V WAHLEN, H and WALCK, C WALDNER, F WEHR, A WEIERSTALL, M WEILHAMMER, P and WETHERELL, AM WICKENS, JH WIELERS, M WILKINSON, GR and WILLIAMS, WSC WINTER, M WITEK, M WORMSER, G WOSCHNAGG, K and YIP, K YUSHCHENKO, O ZACH, F ZAITSEV, A ZALEWSKA, A and ZALEWSKI, P ZAVRTANIK, D ZEVGOLATAKOS, E ZIMM, NI and ZITO, M ZONTAR, D ZUBERI, R ZUMERLE, G
Subjects: High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Nuclear Experiment
Abstract: The time dependent mixing of B-d(0)-(B) over bar(d)(0) mesons has been observed by using the correlations between the charge of D-* mesons and the weighted mean charge of particles in each hemisphere. From a reconstructed D-*+/- sample corresponding to about 1.7 million hadronic Z(0) decays, the mass difference between the two B-d(0) mass eigenstates has been measured to be hm = 0.50 +/- 0.12 (stat.) +/- 0.06 (syst.) (h) over bar/ps or, converting into eV/c(2): Delta m = [3.29 +/- 0.79 (stat.) +/- 0.39 (syst.)] 10(-4) eV/c(2).
Published: 1994

14. MEASUREMENT OF THE B0-(B0)OVER-BAR MIXING USING THE AVERAGE ELECTRIC CHARGE OF HADRON-JETS IN Z0-DECAYS

Author: ABREU, P ADAM, W ADYE, T AGASI, E AJINENKO, I and ALEKSAN, R ALEKSEEV, GD ALGERI, A ALLPORT, P ALMEHED, S and ALVSVAAG, SJ AMALDI, U ANDREAZZA, A ANTILOGUS, P and APEL, WD APSIMON, RJ ARNOUD, Y ASMAN, B AUGUSTIN, JE and AUGUSTINUS, A BAILLON, P BAMBADE, P BARAO, F BARATE, R and BARBIELLINI, G BARDIN, DY BARKER, GJ BARONCELLI, A and BARRING, O BARRIO, JA BARTL, W BATES, MJ BATTAGLIA, M and BAUBILLIER, M BECKS, KH BEGALLI, M BEILLIERE, P and BELOKOPYTOV, Y BELTRAN, P BENVENUTI, AC BERGGREN, M and BERTRAND, D BIANCHI, F BIGI, M BILENKY, MS BILLOIR, P and BJARNE, J BLOCH, D BLOCKI, J BLYTH, S BOCCI, V and BOGOLUBOV, PN BOLOGNESE, T BONESINI, M BONIVENTO, W and BOOTH, PSL BORISOV, G BORNER, H BOSIO, C BOSTJANCIC, B and BOSWORTH, S BOTNER, O BOUQUET, B BOURDARIOS, C and BOWCOCK, TJV BOZZO, M BRAIBANT, S BRANCHINI, P BRAND, KD and BRENNER, RA BRIAND, H BRICMAN, C BRILLAULT, L BROWN, RCA BRUCKMAN, P BRUNET, JM BUDZIAK, A BUGGE, L and BURAN, T BURMEISTER, H BUYS, A BUYTAERT, JAMA CACCIA, M and CALVI, M ROZAS, AJC CAMPION, R CAMPORESI, T CANALE, V CANKOCAK, K CAO, F CARENA, F CARROLL, L CASO, C and GIMENEZ, MVC CATTAI, A CAVALLO, FR CERRITO, L and CHABAUD, V CHAN, A CHAPKIN, M CHARPENTIER, P CHAVEAU, J and CHECCHIA, P CHELKOV, GA CHEVALIER, L CHLIAPNIKOV, P and CHOROWICZ, V CHRIN, JTM CINDRO, V COLLINS, P CONTRERAS, JL CONTRI, R CORTINA, E COSME, G COUCHOT, F CRAWLEY, HB CRENNELL, D CROSETTI, G MAESTRO, JC CZELLAR, S and DAHLJENSEN, E DAHM, J DALMAGNE, B DAM, M DAMGAARD, G and DAUBIE, E DAUM, A DAUNCEY, PD DAVENPORT, M DAVIES, J and DASILVA, W DEFOIX, C DELPIERRE, P DEMARIA, N DEANGELIS, A DEBOECK, H DEBOER, W DEBRABANDERE, S DECLERCQ, C and LASO, MDMD DELAVAISSIERE, C DELOTTO, B DEMIN, A and DIJKSTRA, H DICIACCIO, L DJAMA, F DOLBEAU, J and DONSZELMANN, M DOROBA, K DRACOS, M DREES, J DRIS, M and DUFOUR, Y DUPONT, F EDSALL, D EEK, LO EEROLA, PAM and EHRET, R EKELOF, T EKSPONG, G PEISERT, AE ELSING, M and ENGEL, JP ERSHAIDAT, N SANTO, ME FASSOULIOTIS, D FEINDT, M FERRER, A FILIPPAS, TA FIRESTONE, A FOETH, H and FOKITIS, E FONTANELLI, F FORBES, KAJ FOUSSET, JL and FRANCON, S FRANEK, B FRENKIEL, P FRIES, DC FRODESEN, AG and FRUHWIRTH, R FULDAQUENZER, F FURSTENAU, H FUSTER, J and GAMBA, D GANDELMAN, M GARCIA, C GARCIA, J GASPAR, C and GASPARINI, U GAVILLET, P GAZIS, EN GERBER, JP and GIACOMELLI, P GILLESPIE, D GOKIELI, R GOLOB, B and GOLOVATYUK, VM CADENAS, JJGY GOPAL, G GORN, L GORSKI, M and GRACCO, V GRANT, A GRARD, F GRAZIANI, E GROSDIDIER, G GROSS, E GROSSETETE, B GUNNARSSON, P GUY, J and HAEDINGER, U HAHN, F HAHN, M HAHN, S HAIDER, S and HAJDUK, Z HAKANSSON, A HALLGREN, A HAMACHER, K and DEMONCHENAULT, GH HAO, W HARRIS, FJ HEDBERG, V HENKES, T and HENRIQUES, R HERNANDEZ, JJ HERNANDO, JA HERQUET, P and HERR, H HESSING, TL HIETANEN, I HIGGINS, CO HIGON, E and HILKE, HJ HILL, TS HODGSON, SD HOFMOKL, T HOLMGREN, SO and HOLT, PJ HOLTHUIZEN, D HONORE, PF HOULDEN, M HRUBEC, J HUET, K HULTQVIST, K IOANNOU, P IVERSEN, PS and JACKSON, JN JACOBSSON, R JALOCHA, P JARLSKOG, G JARRY, P and JEANMARIE, B JOHANSSON, EK JONKER, M JONSSON, L and JUILLOT, P KALKANIS, G KALMUS, G KAPUSTA, F KARLSSON, M and KARVELAS, E KATSANEVAS, S KATSOUFIS, EC KERANEN, R and KHOMENKO, BA KHOVANSKI, NN KING, B KJAER, NJ KLEIN, H and KLOVNING, A KLUIT, P KOCHMEHRIN, A KOEHNE, JH KOENE, B KOKKINIAS, P KORATZINOS, M KORCYL, K KORYTOV, AV and KOSTIOUKHINE, V KOURKOUMELIS, C KOUZNETSOV, O KRAMER, PH and KRAMMER, M KREUTER, C KROLIKOWSKI, J KRONKVIST, I and KRUPINSKI, W KUCEWICZ, W KULKA, K KURVINEN, K LACASTA, C and LAMBROPOULOS, C LAMSA, JW LANCERI, L LANGEFELD, P and LAPIN, V LAST, I LAUGIER, JP LAUHAKANGAS, R LEDROIT, F and LEITNER, R LEMOIGNE, Y LEMONNE, J LENZEN, G and LEPELTIER, V LEVY, JM LIEB, E LIKO, D LINDGREN, J and LINDNER, R LIPNIACKA, A LIPPI, I LOERSTAD, B LOKAJICEK, M LOKEN, JG LOPEZFERNANDEZ, A AGUERA, MAL LOS, M and LOUKAS, D LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G and MAILLARD, J MAIO, A MALTEZOS, A MANDL, F MARCO, J and MARGONI, M MARIN, JC MARIOTTI, C MARKOU, A MARON, T and MARTI, S MARTINEZRIVERO, C MARTINEZVIDAL, F MATORRAS, F and MATTEUZZI, C MATTHIAE, G MAZZUCATO, M MCCUBBIN, M MCKAY, R MCNULTY, R MEDBO, J MERONI, C MEYER, WT and MICHELOTTO, M MIKULEC, I MIRABITO, L MITAROFF, WA and MITSELMAKHER, GV MJOERNMARK, U MOA, T MOELLER, R MOENIG, K MONGE, MR MORETTINI, P MUELLER, H MURRAY, WJ and MURYN, B MYATT, G NARAGHI, F NAVARRIA, FL NEGRI, P and NEMECEK, S NEUMANN, W NEUMEISTER, N NICOLAIDOU, R and NIELSEN, BS NIKOLAENKO, V NILSEN, PES NISS, P and NOMEROTSKI, A NOVAK, M OBRAZTSOV, V OLSHEVSKI, AG ORAVA, R OSTANKOV, A OSTERBERG, K OURAOU, A PAGANINI, P and PAGANONI, M PAIN, R PALKA, H PAPADOPOULOU, TD PAPE, L and PARODI, F PASSERI, A PEGORARO, M PENNANEN, J and PERALTA, L PERNEGGER, H PERNICKA, M PERROTTA, A and PETRIDOU, C PETROLINI, A PIANA, G PIERRE, F PIMENTA, M and PLASZCZYNSKI, S PODOBRIN, O POL, ME POLOK, G and POROPAT, P POZDNIAKOV, V PREST, M PRIVITERA, P PULLIA, A and RADOJICIC, D RAGAZZI, S RAHMANI, H RATOFF, PN READ, AL REALE, M REBECCHI, P REDAELLI, NG REGLER, M REID, D RENTON, PB RESVANIS, LK RICHARD, F RICHARDSON, J and RIDKY, J RINAUDO, G ROMERO, A RONCAGLIOLO, I RONCHESE, P and RONNQVIST, C ROSENBERG, EI ROSSO, E ROUDEAU, P and ROVELLI, T RUCKSTUHL, W RUHLMANNKLEIDER, V RUIZ, A and SAARIKKO, H SACQUIN, Y SAJOT, G SALT, J SANCHEZ, J and SANNINO, M SCHAEL, S SCHNEIDER, H SCHYNS, MAE SCIOLLA, G and SCURI, F SEGAR, AM SEITZ, A SEKULIN, R SESSA, M and SEUFERT, R SHELLARD, RC SICCAMA, I SIEGRIST, P and SIMONETTI, S SIMONETTO, F SISAKIAN, AN SKJEVLING, G and SMADJA, G SMIRNOV, N SMIRNOVA, O SMITH, GR SOSNOWSKI, R and SOUZASANTOS, D SPASSOV, T SPIRITI, E SQUARCIA, S and STAECK, H STANESCU, C STAPNES, S STAVROPOULOS, G and STICHELBAUT, F STOCCHI, A STRAUSS, J STRAVER, J STRUB, R and STUGU, B SZCZEKOWSKI, M SZEPTYCKA, M SZYMANSKI, P and TABARELLI, T TCHIKILEV, O THEODOSIOU, GE TILQUIN, A and TIMMERMANS, J TIMOFEEV, VG TKATCHEV, LG TODOROV, T TOET, DZ TOKER, O TOMARADZE, A TOME, B TORASSA, E TORTORA, L TREILLE, D TRISCHUK, W TRISTRAM, G TRONCON, C and TSIROU, A TSYGANOV, EN TURLUER, ML TUUVA, T TYAPKIN, IA and TYNDEL, M TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S and ULLALAND, O UVAROV, V VALENTI, G VALLAZZA, E FERRER, JAV and VANDERVELDE, C VANAPELDOORN, GW VANDAM, P VANDERHEIJDEN, M VANDONINCK, WK VANELDIK, J VAZ, P VEGNI, G and VENTURA, L VENUS, W VERBEURE, F VERLATO, M VERTOGRADOV, LS VILANOVA, D VINCENT, P VITALE, L VLASOV, E and VODOPYANOV, AS VOLLMER, M VOUTILAINEN, M VRBA, V WAHLEN, H WALCK, C WALDNER, F WEHR, A WEIERSTALL, M and WEILHAMMER, P WETHERELL, AM WICKENS, JH WIELERS, M and WILKINSON, GR WILLIAMS, WSC WINTER, M WORMSER, G and WOSCHNAGG, K ZAITSEV, A ZALEWSKA, A ZAVRTANIK, D and ZEVGOLATAKOS, E ZIMIN, NI ZITO, M ZONTAR, D ZUBERI, R and ZUMERLE, G ZUNIGA, J
Subjects: Physics::Instrumentation and Detectors, High Energy Physics::Experiment, Nuclear Experiment
Abstract: From the data recorded with the DELPHI detector at LEP in the years 1991-1992, 46 497 events were selected having a high-momentum muon in hadron jets. A fit to the average electric charge sum of the jets recoiling against a b-quark jet tagged by a high-PT muon results in an average mixing parameter of chiBAR = 0.144 +/- 0.014(stat.)+0.017/-0.011(syst.).
Published: 1994

15. A MEASUREMENT OF THE B(S)0 MESON MASS

Author: ABREU, P ADAM, W ADYE, T AGASI, E ALEKSAN, R and ALEKSEEV, GD ALLPORT, P ALMEHED, S ALMEIDA, FML and ALVSVAAG, SJ AMALDI, U ANDREAZZA, A ANTILOGUS, P APEL, WD APSIMON, RJ ARNOUD, Y ASMAN, B AUGUSTIN, JE and AUGUSTINUS, A BAILLON, P BAMBADE, P BARAO, F BARATE, R and BARBIELLINI, G BARDIN, DY BARKER, GJ BARONCELLI, A and BARRING, O BARRIO, JA BARTL, W BATES, MJ BATTAGLIA, M and BAUBILLIER, M BECKS, KH BEGALLI, M BEILLIERE, P and BELOKOPYTOV, Y BELTRAN, P BENVENUTI, AC BERGGREN, M and BERTRAND, D BIANCHI, F BIGI, M BILENKY, MS BILLOIR, P and BJARNE, J BLOCH, D BLOCKI, J BLYTH, S BOCCI, V and BOGOLUBOV, PN BOLOGNESE, T BONESINI, M BONIVENTO, W and BOOTH, PSL BORISOV, G BOSIO, C BOSTJANCIC, B BOSWORTH, S and BOTNER, O BOUQUET, B BOURDARIOS, C BOWCOCK, TJV and BOZZO, M BRAIBANT, S BRANCHINI, P BRAND, KD BRENNER, RA and BRIAND, H BRICMAN, C BRILLAULT, L BROWN, RCA and BRUCKMAN, P BRUNET, JM BUDZIAK, A BUGGE, L BURAN, T and BUYS, A BUYTAERT, JAMA CACCIA, M CALVI, M ROZAS, AJC and CAMPION, R CAMPORESI, T CANALE, V CANKOCAK, K CAO, F and CARENA, F CARRILHO, P CARROLL, L CASES, R CASO, C and GIMENEZ, MVC CATTAI, A CAVALLO, FR CERRITO, L CHABAUD, V and CHAN, A CHAPKIN, M CHARPENTIER, P CHAUVEAU, J and CHECCHIA, P CHELKOV, GA CHEVALIER, L CHLIAPNIKOV, P and CHOROWICZ, V CHRIN, JTM CINDRO, V COLLINS, P CONTRERAS, JL CONTRI, R CORTINA, E COSME, G COUCHOT, F CRAWLEY, HB CRENNELL, D CROSETTI, G MAESTRO, JC CZELLAR, S and DAHLJENSEN, E DAHM, J DALMAGNE, B DAM, M DAMGAARD, G and DAUBIE, E DAUM, A DAUNCEY, PD DAVENPORT, M DAVIES, J and DASILVA, W DEFOIX, C DELPIERRE, P DEMARIA, N DEANGELIS, A DEBOECK, H DEBOER, W DEBRANDERE, S DECLERCQ, C and LASO, MDMD DELAVAISSIERE, C DELOTTO, B DEMIN, A DEPAULA, L DIJKSTRA, H DICIACCIO, L DJAMA, F DOLBEAU, J and DONSZELMANN, M DOROBA, K DRACOS, M DREES, J DRIS, M and DUFOUR, Y DUPONT, F EDSALL, D EEK, LO EHRET, R and EKELOF, T EKSPONG, G PEISERT, AE ELSING, M ENGEL, JP and ERSHAIDAT, N SANTO, ME FASSOULIOTIS, D FEINDT, M FENYUK, A FERRER, A FILIPPAS, TA FIRESTONE, A FOETH, H and FOKITIS, E FONTANELLI, F FORBES, KAJ FORMENTI, F and FOUSSET, JL FRANCON, S FRANEK, B FRENKIEL, P FRIES, DC and FRODESEN, AG FRUHWIRTH, R FULDAQUENZER, F FURSTENAU, H and FUSTER, J GAMBA, D GANDELMAN, M GARCIA, C GARCIA, J and GASPAR, C GASPARINI, U GAVILLET, P GAZIS, EN GERBER, JP GIACOMELLI, P GILLESPIE, D GOKIELI, R GOLOB, B and GOLOVATYUK, VM CADENAS, JJGY GOPAL, G GORN, L GORSKI, M and GRACCO, V GRARD, F GRAZIANI, E GROSDIDIER, G and GROSSETETE, B GUNNARSSON, P GUY, J HAEDINGER, U HAHN, F and HAHN, M HAHN, S HAIDER, S HAJDUK, Z HAKANSSON, A and HALLGREN, A HAMACHER, K DEMONCHENAULT, GH HAO, W HARRIS, FJ HEDBERG, V HENRIQUES, R HERNANDEZ, JJ HERNANDO, JA and HERQUET, P HERR, H HESSING, TL HIGGINS, CO HIGON, E and HILKE, HJ HILL, TS HODGSON, SD HOFMOKL, T HOLMGREN, SO HOLT, PJ HOLTHUIZEN, D HONORE, PF HOULDEN, M and HRUBEC, J HUET, K HULTQVIST, K IOANNOU, P IVERSEN, PS and JACKSON, JN JACOBSSON, R JALOCHA, P JARLSKOG, G and JARRY, P JEANMARIE, B JOHANSSON, EK JONKER, M JONSSON, L and JUILLOT, P KAISER, M KALKANIS, G KALMUS, G KAPUSTA, F KARLSSON, M KARVELAS, E KATSANEVAS, S KATSOUFIS, EC and KERANEN, R KHOMENKO, BA KHOVANSKI, NN KING, B KJAER, NJ KLEIN, H KLOVNING, A KLUIT, P KOCHMEHRIN, A and KOEHNE, JH KOENE, B KOKKINIAS, P KORATZINOS, M KORCYL, K and KORYTOV, AV KOSTIOUKHINE, V KOURKOUMELIS, C KOUZNETSOV, O KRAMER, PH KREUTER, C KROLIKOWSKI, J KRONKVIST, I and KRUPINSKI, W KUCEWICZ, W KULKA, K KURVINEN, K LACASTA, C and LAMBROPOULOS, C LAMSA, JW LANCERI, L LANGEFELD, P and LAPIN, V LAST, I LAUGIER, JP LAUHAKANGAS, R LEDER, G and LEDROIT, F LEITNER, R LEMOIGNE, Y LEMONNE, J LENZEN, G and LEPELTIER, V LEVY, JM LIEB, E LIKO, D LINDNER, R and LIPNIACKA, A LIPPI, I LOERSTAD, B LOKAJICEK, M LOKEN, JG and LOPEZFERNANDEZ, A AGUERA, MAL LOS, M LOUKAS, D and LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G MAILLARD, J and MAIO, A MALTEZOS, A MANDL, F MARCO, J MARECHAL, B and MARGONI, M MARIN, JC MARIOTTI, C MARKOU, A MARON, T and MARTI, S MARTINEZRIVERO, C MARTINEZVIDAL, F MATORRAS, F and MATTEUZZI, C MATTHIAE, G MAZZUCATO, M MCCUBBIN, M MCKAY, R MCNULTY, R MEDBO, J MERONI, C MEYER, WT and MICHELOTTO, M MIGLIORE, E MIKULEC, I MIRABITO, L and MITAROFF, WA MITSELMAKHER, GV MJOERNMARK, U MOA, T and MOELLER, R MOENIG, K MONGE, MR MORETTINI, P MUELLER, H and MURRAY, WJ MURYN, B MYATT, G NARAGHI, F NAVARRIA, FL and NEGRI, P NEMECEK, S NEUMANN, W NEUMEISTER, N and NICOLAIDOU, R NIELSEN, BS NIKOLAENKO, V NILSEN, PES and NISS, P NOMEROTSKI, A NOVAK, M OBRAZTSOV, V OLSHEVSKI, AG ORAVA, R OSTANKOV, A OSTERBERG, K OURAOU, A and PAGANINI, P PAGANONI, M PAIN, R PALKA, H PAPADOPOULOU, TD PAPE, L PARODI, F PASSERI, A PEGORARO, M and PENNANEN, J PERALTA, L PERNEGGER, H PERNICKA, M and PERROTTA, A PETRIDOU, C PETROLINI, A PIANA, G PIERRE, F and PIMENTA, M PLASZCZYNSKI, S PODOBRIN, O POL, ME and POLOK, G POROPAT, P POZDNIAKOV, V PREST, M PRIVITERA, P and PULLIA, A RADOJICIC, D RAGAZZI, S RAHMANI, H RATOFF, PN READ, AL REALE, M REBECCHI, P REDAELLI, NG and REGLER, M REID, D RENTON, PB RESVANIS, LK RICHARD, F and RICHARDSON, J RIDKY, J RINAUDO, G ROMERO, A RONCAGLIOLO, I RONCHESE, P ROSENBERG, EI ROSSO, E ROUDEAU, P and ROVELLI, T RUCKSTUHL, W RUHLMANNKLEIDER, V RUIZ, A and SAARIKKO, H SACQUIN, Y SAJOT, G SALT, J SANCHEZ, J and SANNINO, M SCHAEL, S SCHNEIDER, H SCHYNS, MAE SCIOLLA, G and SCURI, F SEGAR, AM SEITZ, A SEKULIN, R SESSA, M and SEUFERT, R SHELLARD, RC SICCAMA, I SIEGRIST, P and SIMONETTI, S SIMONETTO, F SISAKIAN, AN SKJEVLING, G and SMADJA, G SMIRNOV, N SMIRNOVA, O SMITH, GR SOSNOWSKI, R and SOUZASANTOS, D SPASSOV, T SPIRITI, E SQUARCIA, S and STAECK, H STANESCU, C STAPNES, S STAVROPOULOS, G and STICHELBAUT, F STOCCHI, A STRAUSS, J STRAVER, J STRUB, R and STUGU, B SZCZEKOWSKI, M SZEPTYCKA, M SZYMANSKI, P and TABARELLI, T TCHIKILEV, O THEODOSIOU, GE THOME, Z and TILQUIN, A TIMMERMANS, J TIMOFEEV, VG TKATCHEV, LG and TODOROV, T TOET, DZ TOMARADZE, A TOME, B TORASSA, E and TORTORA, L TREILLE, D TRISCHUK, W TRISTRAM, G TRONCON, C and TSIROU, A TSYGANOV, EN TURLUER, ML TUUVA, T TYAPKIN, IA TYNDEL, M TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S and ULLALAND, O UVAROV, V VALENTI, G VALLAZZA, E FERRER, JAV VANDERVELDE, C VANAPELDOORN, GW VANDAM, P and VANDERHEIJDEN, M VANDONINCK, WK VANELDIK, J VAZ, P and VEGNI, G VENTURA, L VENUS, W VERBEURE, F VERLATO, M and VERTOGRADOV, LS VILANOVA, D VINCENT, P VLASOV, E and VODOPYANOV, AS VOLLMER, M VOUTILAINEN, M VRBA, V WAHLEN, H WALCK, C WALDNER, F WEHR, A WEIERSTALL, M and WEILHAMMER, P WETHERELL, AM WICKENS, JH WIELERS, M and WILKINSON, GR WILLIAMS, WSC WINTER, M WORMSER, G and WOSCHNAGG, K ZAITSEV, A ZALEWSKA, A ZAVRTANIK, D and ZEVGOLATAKOS, E ZIMIN, NI ZITO, M ZONTAR, D ZUBERI, R and ZUMERLE, G
Subjects: High Energy Physics::Phenomenology, Nuclear Theory, High Energy Physics::Experiment, Nuclear Experiment
Abstract: Strange beauty mesons B(s)0 have been reconstructed through exclusive hadronic final states, using the data collected in 1992 by the DELPHI experiment at the LEP collider. The analysis relies on the combined use of accurate tracking and of the hadron identification capabilities of DELPHI. Three B(s)0 decay candidates have been selected over a negligible background using the D(s)- pi+, D(s)- a1+ (1260) and J/ psi phi decay modes, with identified kaons in the final state. The B(s)0 meson mass is measured to be m(b)s = (5374 +/- 16 +/- 2) MeV/c2.
Published: 1994

16. MEASUREMENT OF THE B0-(B0)OVER-BAR MIXING USING THE AVERAGE ELECTRIC CHARGE OF HADRON-JETS IN Z0-DECAYS

Author: Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, R, Alekseev, Gd, Algeri, A, Allport, P, Almehed, S, Alvsvaag, Sj, Amaldi, U, Andreazza, A, Antilogus, P, Apel, Wd, Apsimon, Rj, Arnoud, Y, Asman, B, Augustin, Je, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barate, R, Barbiellini, G, Bardin, Dy, Barker, Gj, Baroncelli, A, Barring, O, Barrio, Ja, Bartl, W, Bates, Mj, Battaglia, M, Baubillier, M, Becks, Kh, Begalli, M, Beilliere, P, Belokopytov, Y, Beltran, P, Benvenuti, Ac, Berggren, M, Bertrand, D, Bianchi, F, Bigi, M, Bilenky, Ms, Billoir, P, Bjarne, J, Bloch, D, Blocki, J, Blyth, S, Bocci, V, Bogolubov, Pn, Bolognese, T, Bonesini, M, Bonivento, W, Booth, Psl, Borisov, G, Borner, H, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, Tjv, Bozzo, M, Braibant, S, Branchini, P, Brand, Kd, Brenner, Ra, Briand, H, Bricman, C, Brillault, L, Brown, Rca, Bruckman, P, Brunet, Jm, Budziak, A, Bugge, L, Buran, T, Burmeister, H, Buys, A, Buytaert, Jama, Caccia, Massimo, Calvi, M, Rozas, Ajc, Campion, R, Camporesi, T, Canale, V, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, C, Gimenez, Mvc, Cattai, A, Cavallo, Fr, Cerrito, L, Chabaud, V, Chan, A, Chapkin, M, Charpentier, P, Chaveau, J, Checchia, P, Chelkov, Ga, Chevalier, L, Chliapnikov, P, Chorowicz, V, Chrin, Jtm, Cindro, V, Collins, P, Contreras, Jl, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, Hb, Crennell, D, Crosetti, G, Maestro, Jc, Czellar, S, Dahljensen, E, Dahm, J, Dalmagne, B, Dam, M, Damgaard, G, Daubie, E, Daum, A, Dauncey, Pd, Davenport, M, Davies, J, Dasilva, W, Defoix, C, Delpierre, P, Demaria, N, Deangelis, A, Deboeck, H, Deboer, W, Debrabandere, S, Declercq, C, Laso, Mdmd, Delavaissiere, C, Delotto, B, Demin, A, Dijkstra, H, Diciaccio, L, Djama, F, Dolbeau, J, Donszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Dupont, F, Edsall, D, Eek, Lo, Eerola, Pam, Ehret, R, Ekelof, T, Ekspong, G, Peisert, Ae, Elsing, M, Engel, Jp, Ershaidat, N, Santo, Me, Fassouliotis, D, Feindt, M, Ferrer, A, Filippas, Ta, Firestone, A, Foeth, H, Fokitis, E, Fontanelli, F, Forbes, Kaj, Fousset, Jl, Francon, S, Franek, B, Frenkiel, P, Fries, Dc, Frodesen, Ag, Fruhwirth, R, Fuldaquenzer, F, Furstenau, H, Fuster, J, Gamba, D, Gandelman, M, Garcia, C, Garcia, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, En, Gerber, Jp, Giacomelli, P, Gillespie, D, Gokieli, R, Golob, B, Golovatyuk, Vm, Cadenas, Jjgy, Gopal, G, Gorn, L, Gorski, M, Gracco, V, Grant, A, Grard, F, Graziani, E, Grosdidier, G, Gross, E, Grossetete, B, Gunnarsson, P, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Hahn, S, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, Demonchenault, Gh, Hao, W, Harris, Fj, Hedberg, V, Henkes, T, Henriques, R, Hernandez, Jj, Hernando, Ja, Herquet, P, Herr, H, Hessing, Tl, Hietanen, I, Higgins, Co, Higon, E, Hilke, Hj, Hill, Ts, Hodgson, Sd, Hofmokl, T, Holmgren, So, Holt, Pj, Holthuizen, D, Honore, Pf, Houlden, M, Hrubec, J, Huet, K, Hultqvist, K, Ioannou, P, Iversen, Ps, Jackson, Jn, Jacobsson, R, Jalocha, P, Jarlskog, G, Jarry, P, Jeanmarie, B, Johansson, Ek, Jonker, M, Jonsson, L, Juillot, P, Kalkanis, G, 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, Kochmehrin, A, Koehne, Jh, Koene, B, Kokkinias, P, Koratzinos, M, Korcyl, K, Korytov, Av, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Kramer, Ph, Krammer, M, Kreuter, C, Krolikowski, J, Kronkvist, I, Krupinski, W, Kucewicz, W, Kulka, K, Kurvinen, K, Lacasta, C, Lambropoulos, C, Lamsa, Jw, Lanceri, L, Langefeld, P, Lapin, V, Last, I, Laugier, Jp, Lauhakangas, R, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, G, Lepeltier, V, Levy, Jm, Lieb, E, Liko, D, Lindgren, J, Lindner, R, Lipniacka, A, Lippi, I, Loerstad, B, Lokajicek, M, Loken, Jg, Lopezfernandez, A, Aguera, Mal, Los, M, Loukas, D, Lozano, Jj, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maio, A, Maltezos, A, Mandl, F, Marco, J, Margoni, M, Marin, Jc, Mariotti, C, Markou, A, Maron, T, Marti, S, Martinezrivero, C, Martinezvidal, F, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, M, Mccubbin, M, Mckay, R, Mcnulty, R, Medbo, J, Meroni, C, Meyer, Wt, Michelotto, M, Mikulec, I, Mirabito, L, Mitaroff, Wa, Mitselmakher, Gv, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, Mr, Morettini, P, Mueller, H, Murray, Wj, Muryn, B, Myatt, G, Naraghi, F, Navarria, Fl, Negri, P, Nemecek, S, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, Bs, Nikolaenko, V, Nilsen, Pes, Niss, P, Nomerotski, A, Novak, M, Obraztsov, V, Olshevski, Ag, Orava, R, Ostankov, A, Osterberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pain, R, Palka, H, Papadopoulou, Td, Pape, L, Parodi, F, Passeri, A, Pegoraro, M, Pennanen, J, Peralta, L, Pernegger, H, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Piana, G, Pierre, F, Pimenta, M, Plaszczynski, S, Podobrin, O, Pol, Me, Polok, G, Poropat, P, Pozdniakov, V, Prest, Michela, Privitera, P, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, 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, Romero, A, Roncagliolo, I, Ronchese, P, Ronnqvist, C, Rosenberg, Ei, Rosso, E, Roudeau, P, Rovelli, T, Ruckstuhl, W, Ruhlmannkleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sajot, G, Salt, J, Sanchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, Mae, Sciolla, G, Scuri, F, Segar, Am, Seitz, A, Sekulin, R, Sessa, M, Seufert, R, Shellard, Rc, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sisakian, An, Skjevling, G, Smadja, G, Smirnov, N, Smirnova, O, Smith, Gr, Sosnowski, R, Souzasantos, D, Spassov, T, 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, Ge, Tilquin, A, Timmermans, J, Timofeev, Vg, Tkatchev, Lg, Todorov, T, Toet, Dz, Toker, O, Tomaradze, A, Tome, B, Torassa, E, Tortora, L, Treille, D, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A, Tsyganov, En, Turluer, Ml, Tuuva, T, Tyapkin, Ia, Tyndel, M, Tzamarias, S, Ueberschaer, B, Ueberschaer, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Ferrer, Jav, Vandervelde, C, Vanapeldoorn, Gw, Vandam, P, Vanderheijden, M, Vandoninck, Wk, Vaneldik, J, Vaz, P, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, Ls, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, As, Vollmer, M, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wehr, A, Weierstall, M, Weilhammer, P, Wetherell, Am, Wickens, Jh, Wielers, M, Wilkinson, Gr, Williams, Wsc, Winter, M, Wormser, G, Woschnagg, K, Zaitsev, A, Zalewska, A, Zavrtanik, D, Zevgolatakos, E, Zimin, Ni, Zito, M, Zontar, D, Zuberi, R, Zumerle, G, and Zuniga, J.
Subjects: CP-VIOLATION, DECAYS, MESONS, Z(0), LEP, DELPHI, mixing in B0 system, b tagging
Published: 1994

17. MEASUREMENT OF THE E+E- -] GAMMA-GAMMA(GAMMA) CROSS-SECTION AT LEP ENERGIES

Author: ABREU, P ADAM, W ADYE, T AGASI, E AJINENKO, I and ALEKSAN, R ALEKSEEV, GD ALLPORT, PP ALMEHED, S ALMEIDA, FML ALVSVAAG, SJ AMALDI, U ANDREAZZA, A ANTILOGUS, P and APEL, WD APSIMON, RJ ARNOUD, Y ASMAN, B AUGUSTIN, JE and AUGUSTINUS, A BAILLON, P BAMBADE, P BARAO, F BARATE, R and BARBIELLINI, G BARDIN, DY BARKER, GJ BARONCELLI, A and BARRING, O BARRIO, JA BARTL, W BATES, MJ BATTAGLIA, M and BAUBILLIER, M BECKS, KH BEGALLI, M BEILLIERE, P and BELTRAN, P BENVENUTI, AC BERGGREN, M BERTRAND, D and BIANCHI, F BIGI, M BILENKY, MS BILLOIR, P BJARNE, J and BLOCH, D BLOCKI, J BLYTH, S BOCCI, V BOGOLUBOV, PN and BOLOGNESE, T BONESINI, M BONIVENTO, W BOOTH, PSL and BORISOV, G BOSIO, C BOSTJANCIC, B BOSWORTH, S BOTNER, O and BOUQUET, B BOURDARIOS, C BOWCOCK, TJV BOZZO, M and BRAIBANT, S BRANCHINI, P BRAND, KD BRENNE, RRA BRIAND, H and BRICMAN, C BRILLAULT, L BROWN, RCA BRUNET, JM BUGGE, L BURAN, T BUYS, A BUYTAERT, JAMA CACCIA, M CALVI, M and ROZAS, AJC CAMPION, R CAMPORESI, T CANALE, V and CANKOCAK, K CAO, F CARENA, F CARRILHO, P CARROLL, L and CASES, R CASO, C GIMENEZ, MVC CATTAI, A CAVALLO, FR and CERRITO, L CHABAUD, V CHAN, A CHAPKIN, M CHARPENTIER, P and CHAUVEAU, J CHECCHIA, P CHELKOV, GA CHEVALIER, L and CHLIAPNIKOV, P CHOROWICZ, V CHRIN, JTM CINDRO, V and COLLINS, P CONTRERAS, JL CONTRI, R CORTINA, E COSME, G and COUCHOT, F CRAWLEY, HB CRENNELL, D CROSETTI, G and MAESTRO, JC CZELLAR, S DAHLJENSEN, E DAHM, J DALMAGNE, B and DAM, M DAMGAARD, G DAUBIE, E DAUM, A DAUNCEY, PD and DAVENPORT, M DAVIES, J DASILVA, W DEFOIX, C DELPIERRE, P and DEMARIA, N DEANGELIS, A DEBOECK, H DEBOER, W and DEBRABANDERE, S DECLERCQ, C DEFEZLASO, MDM DELAVAISSIERE, C and DELOTTO, B DEMIN, A DEPAULA, L DIJKSTRA, H and DICIACCIO, L DJAMA, F DOLBEAU, J DONSZELMANN, M DOROBA, K DRACOS, M DREES, J DRIS, M DUFOUR, Y DUPONT, F and EDSALL, D EEK, LO EHRET, R EKELOF, T EKSPONG, G and ELSING, M ENGEL, JP ERSHAIDAT, N SANTO, ME FALALEEV, V and FASSOULIOTIS, D FEINDT, M FERRER, A FILIPPAS, TA and FIRESTONE, A FOETH, H FOKITIS, E FONTANELLI, F FORMENTI, F FOUSSET, JL FRANCON, S FRANKEL, B FRENKIEL, P and FRIES, DC FRODESEN, AG FRUHWIRTH, R FULDAQUENZER, F and FURSTENAU, H FUSTER, J GAMBA, D GANDELMAN, M GARCIA, C and GARCIA, J GASPAR, C GASPARINI, U GAVILLET, P GAZIS, EN GERBER, JP GIACOMELLI, P GILLESPIE, D GOLIELI, R and GOLOB, B GOLOVATYUK, VM CADENAS, JJG GOPAL, G GORN, L and GORSKI, M GRACCO, V GRARD, F GRAZIANI, E GROSDIDIER, G GROSSETETE, B GUNNARSSON, P GUY, J HAEDINGER, U and HAHN, F HAHN, M HAHN, S HAIDER, S HAJDUK, Z and HAKANSSON, A HALLGREN, A HAMACHER, K DEMONCHENAULT, GH and HAO, W HARRIS, FJ HEDBERG, V HENRIQUES, R HERXNANDEZ, JJ and HERNANDO, JA HERQUET, P HERR, H HESSING, TL HIGON, E and HILKE, HJ HILL, TS HOLMGREN, SO HOLT, PJ HOLTHUIZEN, D HONORE, PF HOULDEN, M HRUBEC, J HUET, K HULTQVIST, K IOANNOU, P IVERSEN, PS JACKSON, JN JACOBSSON, R and JALOCHA, P JARLSKOG, G JARRY, P JEANMARIE, B JOHANSSON, EK JONKER, M JONSSON, L JUILLOT, P KAISER, M KALMUS, G KAPUSTA, F KARLSSON, M KARVELAS, E KATARGIN, A and KATSANEVAS, S KATSOUFIS, EC KERANEN, R KHOMENKO, BA and KHOVANSKI, NN KING, B KJAER, NJ KLEIN, H KLOVNING, A and KLUIT, P KOCHMEHRIN, A KOEHNE, JH KOENE, B KOKKINIAS, P and KORATZINOS, M KORCYL, K KORYTOV, AV KOSTIOUKHINE, V and KOURKOUMELIS, C KOUZNETSOV, O KRAMER, PH KRAMMER, M and KREUTER, C KROLIKOWSKI, J KRONKVIST, I KRUPINSKI, W and KULKA, K KURVINEN, K LACASTA, C LAMBROPOULOS, C LAMSA, JW LANCERI, L LANGEFELD, P LAPIN, V LAST, I LAUGIER, JP LAUHAKANGAS, R LEDER, G LEDROIT, F LEITNER, R and LEMOIGNE, Y LEMONNE, J LENZEN, G LEPELTIER, V LESIAK, T and LEVY, JM LIEB, E LOPEZFERNANDEZ, A AGUERA, MAL LOS, M LOUKAS, D LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G and MARIN, JC MARIOTTI, C MARKOU, A MARON, T MARTI, S and MARTINEZRIVERO, C MARTINEZVIDAL, F MATORRAS, F and MATTEUZZI, C MATTHIAE, G MAZZUCATO, M MCCUBBIN, M MCKAY, R MCNULTY, R MEDBO, J MERONI, C MEYER, WT and MICHELOTTO, M MIGLIORE, E MIKULEC, I MIRABITO, L and MITSELMAKHER, GV MJOERNMARK, U MOA, T MOELLER, R MOENIG, K MONGE, MR MORETTINI, P MUELLER, H MURRAY, WJ and MURYN, B MYATT, G NARAGHI, F NAVARRIA, FL NEGRI, P and NEMECEK, S NEUMANN, W NEUMEISTER, N NICOLAIDOU, R and NIELSEN, BS NILSEN, PES NISS, P NOMEROTSKI, A NORMAND, A and OBRAZTSOV, V OLSHEVSKI, AG ORAVA, R OSTERBERG, K and OURAOU, A PAGANINI, P PAGANONI, M PAIN, R PALKA, H and PAPADOPOULOU, TD PAPE, L PARODI, F PASSERI, A PEGORARO, M PENNANEN, J PERALTA, L PERNEGGER, H PERNICKA, M and PERROTTA, A PETRIDOU, C PETROLINI, A PHILLIPS, HT PIANA, G PIERRE, F PIMENTA, M PLASZCZYNSKI, S PODOBRIN, O and POL, ME POLOK, G POROPAT, P POZDNIAKOV, V PREST, M and PRIVITERA, P PULLIA, A RADOJICIC, D RAGAZZI, S RAHMANI, H RAMES, J RATOFF, PN READ, AL REALE, M REBECCHI, P and REDAELLI, NG REGLER, M REID, D RENTON, PB RESVANIS, LK RICHARD, F RICHARDSON, J RIDKY, J RINAUDO, G and ROMERO, A RONCAGLIOLO, J RONCHESE, P ROSENBERG, EI and ROSSO, E ROUDEAU, P ROVELLI, T RUCKSTUHL, W and RUHLMANNKLEIDER, V RUIZ, A RYBICKI, K SAARIKKO, H and SACQUIN, Y SAJOT, G SALT, J SANCHEZ, J SANNINO, M and SCHAEL, S SCHNEIDER, H SCHYNS, MAE SCIOLLA, G SCURI, F and SEGAR, AM SEITZ, A SEKULIN, R SESSA, M SEUFERT, R and SHELLARD, RC SICCAMA, I SIEGRIST, P SIMONETTI, S and SIMONETTO, F SISAKIAN, AN SKJEVLING, G SMADJA, G and SMIRNOV, N SMIRNOVA, O SMITH, GR SOSNOWSKI, R and SOUZASANTOS, D SPASSOV, T SPIRITI, E SQUARCIA, S STAECK, H STANESCU, C STAPNES, S STAVITSKI, I STAVROPOULOS, G and STEPANIAK, K STICHELBAUT, F STOCCHI, A STRAUSS, J and STRAVER, J STRUB, R STUGU, B SZCZEKOWSKI, M SZEPTYCKA, M and SZYMANSKI, P TABARELLI, T TCHIKILEV, O THEODOSIOU, GE and THOME, Z TILQUIN, A TIMMERMANS, J TIMOFEEV, VG and TKATCHEV, LG TODOROV, T TOET, DZ TOMARADZE, A TOME, B and TORASSA, E TORTORA, L TREILLE, D TRISCHUK, W and TRISTRAM, G TRONCON, C TSIROU, A TSYGANOV, EN TURALA, M and TURLUER, ML TUUVA, T TYAPKIN, IA TYNDEL, M and TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S ULLALAND, O and UVAROV, V VALENTI, G VALLAZZA, E FERRER, JAV and VANDERVELDE, C VANAPELDOORN, GW VANDAM, P VANDERHEIJDEN, M and VANDONINCK, WK VANELDIK, J VAZ, P VEGNI, G VENTURA, L VENUS, W VERBEURE, F VERLATO, M VERTOGRADOV, LS and VILANOVA, D VINCENT, P VITALE, L VLASOV, E VODOPYANOV, AS VOLLMER, M VOUTILAINEN, M VRBA, V WAHLEN, H and WALCK, C WALDNER, F WEHR, A WEIERSTALL, M WEILHAMMER, P and WETHERELL, AM WICKENS, JH WIELERS, M WILKINSON, GR and WILLIAMS, WSC WINTER, M WITEK, M WORMSER, G WOSCHNAGG, K and YIP, K YUSHCHENKO, O ZAITSEV, A ZALEWSKA, A and ZALEWSKI, P ZAVRTANIK, D ZEVGOLATAKOS, E ZIMIN, NI ZITO, M ZONTAR, D ZUBERI, R ZUMERLE, G
Abstract: The total and the differential cross sections for the reaction e+e- –> gammagamma(gamma) have been measured with the DELPHI detector at LEP using an integrated luminosity of 36.9 pb-1. The results agree with the QED predictions and consequently there is no evidence for non-standard channels with the same experimental signature. The lower limits obtained on the QED cutoff parameters are LAMBDA+ > 143 GeV and LAMBDA- > 120 GeV, and the lower bound on the mass of an excited electron with an effective coupling constant lambda(gamma) = 1 is 132 GeV/c2. Upper limits on the branching ratios for the decays Z0 –> gammagamma, Z0 –> pi0gamma, Z0 –> etagamma and Z0 –> gammagammagamma have been determined to be 5.5 x 10(-5), 5.5 x 10(-5), 8.0 x 10(-5), and 1.7 x 10-5 respectively. All the limits are at the 95% confidence level.
Published: 1994

18. MEASUREMENT OF THE B-0-(B)OVER-BAR-0 MIXING PARAMETER IN DELPHI

Author: ABREU, P ADAM, W ADYE, T AGASI, E AJINENKO, I and ALEKSAN, R ALEKSEEV, GD ALLPORT, PP ALMEHED, S ALMEIDA, FML ALVSVAAG, SJ AMALDI, U ANDREAZZA, A ANTILOGUS, P and APEL, WD APSIMON, RJ ARNOUD, Y ASMAN, B AUGUSTIN, JE and AUGUSTINUS, A BAILLON, P BAMBADE, P BARAO, F BARATE, R and BARBIELLINI, G BARDIN, DY BARKER, GJ BARONCELLI, A and BARRING, O BARRIO, JA BARTL, W BATES, MJ BATTAGLIA, M and BAUBILLIER, M BECKS, KH BEGALLI, M BEILLIERE, P and BELTRAN, P BENVENUTI, AC BERGGREN, M BERTRAND, D and BIANCHI, F BIGI, M BILENKY, MS BILLOIR, P BJARNE, J and BLOCH, D BLOCKI, J BLYTH, S BOCCI, V BOGOLUBOV, PN and BOLOGNESE, T BONESINI, M BONIVENTO, W BOOTH, PSL and BORISOV, G BOSIO, C BOSTJANCIC, B BOSWORTH, S BOTNER, O and BOUQUET, B BOURDARIOS, C BOWCOCK, TJV BOZZO, M and BRAIBANT, S BRANCHINI, P BRAND, KD BRENNER, RA BRIAND, H and BRICMAN, C BRILLAULT, L BROWN, RCA BRUNET, JM BUGGE, L BURAN, T BUYS, A BUYTAERT, JAMA CACCIA, M CALVI, M and ROZAS, AJC CAMPION, R CAMPORESI, T CANALE, V and CANKOCAK, K CAO, F CARENA, F CARRILHO, P CARROLL, L and CASES, R CASO, C GIMENEZ, MVC CATTAI, A CAVALLO, FR and CERRITO, L CHABAUD, V CHAN, A CHARPENTIER, P CHAUVEAU, J and CHECCHIA, P CHELKOV, GA CHEVALIER, L CHLIAPNIKOV, P and CHOROWICZ, V CHRIN, JTM CINDRO, V COLLINS, P CONTRERAS, JL CONTRI, R CORTINA, E COSME, G COUCHOT, F CRAWLEY, HB CRENNELL, D CROSETTI, G MAESTRO, JC CZELLAR, S and DAHLJENSEN, E DAHM, J DALMAGNE, B DAM, M DAMGAARD, G and DAUBIE, E DAUM, A DAUNCEY, PD DAVENPORT, M DAVIES, J and DASILVA, W DEFOIX, C DELPIERRE, P DEMARIA, N DEANGELIS, A DEBOECK, H DEBOER, W DEBRABANDERE, S DECLERCQ, C and LASO, MDMD DELAVAISSIERE, C DELOTTO, B DEMIN, A DEPAULA, L DIJKSTRA, H DICIACCIO, L DJAMA, F DOLBEAU, J and DONSZELMANN, M DOROBA, K DRACOS, M DREES, J DRIS, M and DUFOUR, Y DUPONT, F EDSALL, D EHRET, R EKELOF, T and EKSPONG, G ELSING, M ENGEL, JP ERSHAIDAT, N SANTO, ME and FALALEEV, V FASSOULIOTIS, D FEINDT, M FENYUK, A and FERRER, A FILIPPAS, TA FIRESTONE, A FOETH, H FOKITIS, E and FONTANELLI, F FORMENTI, F FOUSSET, JL FRANCON, S and FRANEK, B FRENKIEL, P FRIES, DC FRODESEN, AG and FULDAQUENZER, F FURSTENAU, H FUSTER, J GAMBA, D and GANDELMAN, M GARCIA, C GARCIA, J GASPAR, C GASPARINI, U and GAVILLET, P GAZIS, EN GELE, D GERBER, JP GIACOMELLI, P GILLESPIE, D GOKIELI, R GOLOB, B GOLOVATYUK, VM and CADENAS, JJGY GOPAL, G GORN, L GORSKI, M GRACCO, V and GRARD, F GRAZIANI, E GROSDIDIER, G GUNNARSSON, P GUY, J and HAEDINGER, U HAHN, F HAHN, M HAHN, S HAIDER, S and HAJDUK, Z HAKANSSON, A HALLGREN, A HAMACHER, K and DEMONCHENAULT, GH HAO, W HARRIS, FJ HEDBERG, V and HENRIQUES, R HERNANDEZ, JJ HERNANDO, JA HERQUET, P HERR, H HESSING, TL HIGON, E HILKE, HJ HILL, TS HOLMGREN, SO HOLT, PJ HOLTHUIZEN, D HONORE, PF HOULDEN, M and HRUBEC, J HUET, K HULTQVIST, K IOANNOU, P IVERSEN, PS and JACKSON, JN JACOBSSON, R JALOCHA, P JARLSKOG, G and JARRY, P JEANMARIE, B JOHANSSON, EK JONKER, M JONSSON, L and JUILLOT, P KAISER, M KALMUS, G KAPUSTA, F KARLSSON, M KARVELAS, E KATSANEVAS, S KATSOUFIS, EC KERANEN, R and KHOMENKO, BA KHOVANSKI, NN KING, B KJAER, NJ KLEIN, H and KLOVNING, A KLUIT, P KOCHMEHRIN, A KOEHNE, JH KOENE, B KOKKINIAS, P KORATZINOS, M KORCYL, K KORYTOV, AV and KOSTIOUKHINE, V KOURKOUMELIS, C KOUZNETSOV, O KRAMER, PH and KRAMMER, M KREUTER, C KROLIKOWSKI, J KRONKVIST, I and KRUPINSKI, W KULKA, K KURVINEN, K LACASTA, C and LAMBROPOULOS, C LAMSA, JW LANCERI, L LANGEFELD, P LAPIN, V LAST, I LAUGIER, JP LAUHAKANGAS, R LEDER, G and LEDROIT, F LEITNER, R LEMOIGNE, Y LEMONNE, J LENZEN, G and LEPELTIER, V LESIAK, T LEVY, JM LIEB, E LIKO, D and LINDNER, R LIPNIACKA, A LIPPI, I LERSTAD, B LOKAJICEK, M and LOKEN, JG LOPEZFERNANDEZ, A AGUERA, MAL LOS, M and LOUKAS, D LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G and MAILLARD, J MAIO, A MALTEZOS, A MANDL, F MARCO, J and MARECHAL, B MARGONI, M MARIN, JC MARIOTTI, C MARKOU, A and MARON, T MARTI, S MARTINEZRIVERO, C MARTINEZVIDAL, F and MATORRAS, F MATTEUZZI, C MATTHIAE, G MAZZUCATO, M and MCCUBBIN, M MCKAY, R MCNULTY, R MEDBO, J MERONI, C and MEYER, WT MICHELOTTO, M MIGLIORE, E MIKULEC, I MIRABITO, L MITAROFF, WA MITSELMAKHER, GV MJOERNMARK, U MOA, T and MOELLER, R MOENIG, K MONGE, MR MORETTINI, P MUELLER, H and MURRAY, WJ MURYN, B MYATT, G NARAGHI, F NAVARRIA, FL and NEGRI, P NEMECEK, S NEUMANN, W NEUMEISTER, N and NICOLAIDOU, R NIELSEN, BS NIKOLAENKO, V NILSEN, PES and NISS, P NOMEROTSKI, A NORMAND, A NOVAK, M OBRAZTSOV, V and OLSHEVSKI, AG ORAVA, R OSTERBERG, K OURAOU, A and PAGANINI, P PAGANONI, M PAIN, R PALKA, H PAPADOPOULOU, TD PAPE, L PARODI, F PASSERI, A PEGORARO, M and PENNANEN, J PERALTA, L PERNEGGER, H PERNICKA, M and PERROTTA, A PETRIDOU, C PETROLINI, A PHILLIPS, HT PIANA, G PIERRE, F PIMENTA, M PLASZCZYNSKI, S PODOBRIN, O and POL, ME POLOK, G POROPAT, P POZDNIAKOV, V PREST, M and PRIVITERA, P PULLIA, A RADOJICIC, D RAGAZZI, S RAHMANI, H RATOFF, PN READ, AL REALE, M REBECCHI, P REDAELLI, NG REGLRE, M REID, D RENTON, PB RESVANIS, LK and RICHARD, F RICHARDSON, J RIDKY, J RINAUDO, G ROMERO, A and RONCAGLIOLO, I RONCHESE, P ROOS, L ROSENBERG, EI and ROSSO, E ROUDEAU, P ROVELLI, T RUCKSTRUHL, W and RUHLMANNKLEIDER, V RUIZ, A RYBICKI, K SAARIKKO, H and SACQUIN, Y SAJOT, G SALT, J SANCHEZ, J SANNINO, M and SCHAEL, S SCHNEIDER, H SCHYNS, MAE SCIOLLA, G SCURI, F and SEGAR, AM SEITZ, A SEKULIN, R SESSA, M SEUFERT, R and SHELLARD, RC SICCAMA, I SIEGRIST, P SIMONETTI, S and SIMONETTO, F SISAKIAN, AN SKJEVLING, G SMADJA, G and SMIRNOV, N SMIRNOVA, O SMITH, GR SOSNOWSKI, R and SOUZASANTOS, D SPASSOV, T SPIRITI, E SQUARCIA, S STAECK, H STANESCU, C STAPNES, S STAVITSKI, I STAVROPOULOS, G and STEPANIAK, K STICHELBAUT, F STOCCHI, A STRAUSS, J and STRAVER, J STRUB, R STUGU, B SZCZEKOWSKI, M SZEPTYCKA, M and TABARELLI, T TCHILKILEV, O THEODOSIOU, GE THOME, Z and TILQUIN, A TIMMERMANS, J TIMOFEEV, VG TKATCHEV, LG and TODOROV, T TOET, DZ TOMARADZE, A TOME, B TORASSA, E and TORTORA, L TRANSTROMER, G TREILLE, D TRISCHUK, W and TRISTRAM, G TRONCON, C TSIROU, A TSYGANOV, EN TURALA, M and TURLUER, ML TUUVA, T TYAPKIN, IA TYNDEL, M and TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S ULLALAND, O and UVAROV, V VALENTI, G VALLAZZA, E FERRER, JAV and VANDERVELDE, C VANAPELDOORN, GW VANDAM, P VANDERHEIJDEN, M and VANDONINCK, WK VANELDIK, J VAZ, P VEGNI, G VENTURA, L VENUS, W VERBEURE, F VERLATO, M VERTOGRADOV, LS and VILANOVA, D VINCENT, P VITALE, L VLASOV, E VODOPYANOV, AS VOLLMER, M VOUTILAINEN, M VRBA, V WAHLEN, H and WALCK, C WALDNER, F WEHR, A WEIERSTALL, M WEILHAMMER, P and WETHERELL, AM WICKENS, JH WIELERS, M WILKINSON, GR and WILLIAMS, WSC WINTER, M WITEK, M WORMSER, G WOSCHNAGG, K and YIP, K YUSHCHENKO, O ZAITSEV, A ZALEWSKA, A and ZALEWSKI, P ZAVRTANIK, D ZEVGOLATAKOS, E ZIMIN, NI ZITO, M ZONTAR, D ZUBERI, R ZUMERLE, G
Subjects: High Energy Physics::Experiment
Abstract: A total of about 900000 Z0 –> qqBAR decays have been analyzed to measure the B0 - B0BAR mixing probability. Two different b tagging techniques have been used: events with two leptons and events with one lepton and one LAMBDA. From a combination of the two methods the average mixing parameter, chi, was determined to be (12.1 +/- 1.6(stat.) +/- 0.4(syst.) +/- 0.4(model))%.
Published: 1994

19. MEASUREMENTS OF THE LINESHAPE OF THE Z(0) AND DETERMINATION OF ELECTROWEAK PARAMETERS FROM ITS HADRONIC AND LEPTONIC DECAYS

Author: ABREU, P ADAM, W ADYE, T AGASI, E ALEKSAN, R and ALEKSEEV, GD ALLPORT, P ALMEHED, S ALMEIDA, FML and ALVSVAAG, SJ AMALDI, U ANDREAZZA, A ANTILOGUS, P APEL, WD APSIMON, RJ ARNOUD, Y ASMAN, B AUGUSTIN, JE and AUGUSTINUS, A BAILLON, P BAMBADE, P BARAO, F BARATE, R and BARBIELLINI, G BARDIN, DY BARKER, GJ BARONCELLI, A and BARRING, O BARRIO, JA BARTL, W BATES, MJ BATTAGLIA, M and BAUBILLIER, M BECKS, KH BEGALLI, M BEILLIERE, P and BELOKOPYTOV, Y BELTRAN, P BENVENUTI, AC BERGGREN, M and BERTRAND, D BIANCHI, F BIGI, M BILENKY, MS BILLOIR, P and BJARNE, J BLOCH, D BLOCKI, J BLYTH, S BOCCI, V and BOGOLUBOV, PN BOLOGNESE, T BONESINI, M BONIVENTO, W and BOOTH, PSL BORISOV, G BOSIO, C BOSTJANCIC, B BOSWORTH, S and BOTNER, O BOUDINOV, E BOUQUET, B BOURDARIOS, C and BOWCOCK, TJV BOZZO, M BRAIBANT, S BRANCHINI, P BRAND, KD and BRENNER, RA BRIAND, H BRICMAN, C BRILLAULT, L BROWN, RCA BRUCKMAN, P BRUNET, JM BUDZIAK, A BUGGE, L and BURAN, T BUYS, A BUYTAERT, JAMA CACCIA, M CALVI, M and ROZAS, AJC CAMPION, R CAMPORESI, T CANALE, V CANKOCAK, K and CAO, F CARENA, F CARRILHO, P CARROLL, L CASES, R and CASO, C GIMENEZ, MVC CATTAI, A CAVALLO, FR CERRITO, L and CHABAUD, V CHAN, A CHARPENTIER, P CHAUVEAU, J and CHECCHIA, P CHELKOV, GA CHEVALIER, L CHLIAPNIKOV, P and CHOROWICZ, V CHRIN, JTM CINDRO, V COLLINS, P CONTRERAS, JL CONTRI, R CORTINA, E COSME, G COUCHOT, F CRAWLEY, HB CRENNELL, D CROSETTI, G MAESTRO, JC CZELLAR, S and DAHLJENSEN, E DAHM, J DALMAGNE, B DAM, M DAMGAARD, G and DAUBIE, E DAUM, A DAUNCEY, PD DAVENPORT, M DAVIES, J and DASILVA, W DEFOIX, C DELPIERRE, P DEMARIA, N DEANGELIS, A DEBOECK, H DEBOER, W DEBRABANDERE, S DECLERCQ, C and LASO, MDMD DELAVAISSIERE, C DELOTTO, B DEMIN, A DEPAULA, L DIJKSTRA, H DICIACCIO, L DJAMA, F DOLBEAU, J and DONSZELMANN, M DOROBA, K DRACOS, M DREES, J DRIS, M and DUFOUR, Y DUPONT, F EDSALL, D EEK, LO EHRET, R and EKELOF, T EKSPONG, G PEISERT, AE ELSING, M ENGEL, JP and ERSHAIDAT, N SANTO, ME FALALEEV, V FASSOULIOTIS, D and FEINDT, M FERRER, A FILIPPAS, TA FIRESTONE, A FOETH, H and FOKITIS, E FONTANELLI, F FORBES, KAJ FORMENTI, F and FOUSSET, JL FRANCON, S FRANEK, B FRENKIEL, P FRIES, DC and FRODESEN, AG FRUHWIRTH, R FULDAQUENZER, F FURSTENAU, H and FUSTER, J GAMBA, D GANDELMAN, M GARCIA, C GARCIA, J and GASPAR, C GASPARINI, U GAVILLET, P GAZIS, EN GERBER, JP GIACOMELLI, P GILLESPIE, D GOKIELI, R GOLOB, B and GOLOVATYUK, VM CADENAS, JJGY GOPAL, G GORN, L GORSKI, M and GRACCO, V GRARD, F GRAZIANI, E GROSDIDIER, G and GROSSETETE, B GUNNARSSON, P GUY, J HAEDINGER, U HAHN, F and HAHN, M HAHN, S HAIDER, S HAJDUK, Z HAKANSSON, A and HALLGREN, A HAMACHER, K DEMONCHENAULT, GH HAO, W HARRIS, FJ HEDBERG, V HENRIQUES, R HERNANDEZ, JJ HERNANDO, JA and HERQUET, P HERR, H HESSING, TL HIGGINS, CO HIGON, E and HILKE, HJ HILL, TS HODGSON, SD HOFMOKL, T HOLMGREN, SO HOLT, PJ HOLTHUIZEN, D HONORE, PF HOULDEN, M and HRUBEC, J HUET, K HULTQVIST, K IOANNOU, P IVERSEN, PS and JACKSON, JN JACOBSSON, R JALOCHA, P JARLSKOG, G and JARRY, P JEANMARIE, B JOHANSSON, EK JONKER, M JONSSON, L and JUILLOT, P KAISER, M KALKANIS, G KALMUS, G KAPUSTA, F KARLSSON, M KARVELAS, E KATSANEVAS, S KATSOUFIS, EC and KERANEN, R KHOMENKO, BA KHOVANSKI, NN KING, B KJAER, NJ KLEIN, H KLOVNING, A KLUIT, P KOCHMEHRIN, A and KOEHNE, JH KOENE, B KOKKINIAS, P KORATZINOS, M KORYTOV, AV KOSTIOUKHINE, V KOURKOUMELIS, C KOUZNETSOV, O KRAMER, PH KRAMMER, M KREUTER, C KROLIKOWSKI, J KRONKVIST, I and KUCEWICZ, W KULKA, K KURVINEN, K LACASTA, C and LAMBROPOULOS, C LAMSA, JW LANCERI, L LANGEFELD, P LAPIN, V LAST, I LAUGIER, JP LAUHAKANGAS, R LEDER, G and LEDROIT, F LEITNER, R LEMOIGNE, Y LEMONNE, J LENZEN, G and LEPELTIER, V LEVY, JM LIEB, E LINDNER, R LIPNIACKA, A LIPPI, I LOERSTAD, B LOKAJICEK, M LOKEN, JG and LOPEZFERNANDEZ, A AGUERA, MAL LOS, M LOUKAS, D LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G MAILLARD, J MAIO, A and MALTEZOS, A MANDL, F MARCO, J MARECHAL, B MARGONI, M and MARIN, JC MARIOTTI, C MARKOU, A MARON, T MARTI, S and MARTINEZRIVERO, C MARTINEZVIDAL, F MATORRAS, F and MATTEUZZI, C MATTHIAE, G MAZZUCATO, M MCCUBBIN, M MCKAY, R MCNULTY, R MEDBO, J MERONI, C MEYER, WT and MICHELOTTO, M MIGLIORE, E MIKULEC, I MIRABITO, L and MITAROFF, WA MITSELMAKHER, GV MJOERNMARK, U MOA, T and MOELLER, R MOENIG, K MONGE, MR MORETTINI, P MUELLER, H and MURRAY, WJ MURYN, B MYATT, G NARAGHI, F NAVARRIA, FL and NEGRI, P NEMECEK, S NEUMANN, W NEUMEISTER, N and NICOLAIDOU, R NIELSEN, BS NIKOLAENKO, V NILSEN, PES and NISS, P NOMEROTSKI, A OBRAZTSOV, V OLSHEVSKI, AG ORAVA, R OSTANKOV, A OSTERBERG, K OURAOU, A PAGANINI, P and PAGANONI, M PAIN, R PALKA, H PAPADOPOULOU, TD PAPE, L and PARODI, F PASSERI, A PEGORARO, M PENNANEN, J and PERALTA, L PERNEGGER, H PERNICKA, M PERROTTA, A and PETRIDOU, C PETROLINI, A PIANA, G PIERRE, F PIMENTA, M and PLASZCZYNSKI, S PODOBRIN, O POL, ME POLOK, G and POROPAT, P POZDNIAKOV, V PREST, M PRIVITERA, P PULLIA, A and RADOJICIC, D RAGAZZI, S RAHMANI, H RAMES, J RATOFF, PN READ, AL REALE, M REBECCHI, P REDAELLI, NG and REGLER, M REID, D RENTON, PB RESVANIS, LK RICHARD, F and RICHARDSON, J RIDKY, J RINAUDO, G ROMERO, A RONCAGLIOLO, I RONCHESE, P ROSENBERG, EI ROSSO, E ROUDEAU, P and ROVELLI, T RUCKSTUHL, W RUHLMANNKLEIDER, V RUIZ, A and RYBICKI, K SAARIKKO, H SACQUIN, Y SAJOT, G SALT, J and SANCHEZ, J SANNINO, M SCHAEL, S SCHNEIDER, H SCHYNS, MAE and SCIOLLA, G SCURI, F SEGAR, AM SEITZ, A SEKULIN, R and SESSA, M SEUFERT, R SHELLARD, RC SICCAMA, I and SIEGRIST, P SIMONETTI, S SIMONETTO, F SISAKIAN, AN and SKJEVLING, G SMADJA, G SMIRNOV, N SMIRNOVA, O SMITH, GR and SOSNOWSKI, R SOUZASANTOS, D SPASSOV, T SPIRITI, E and SQUARCIA, S STAECK, H STANESCU, C STAPNES, S and STAVROPOULOS, G STICHELBAUT, F STOCCHI, A STRAUSS, J and STRAVER, J STRUB, R STUGU, B SZCZEKOWSKI, M SZEPTYCKA, M and SZYMANSKI, P TABARELLI, T TCHIKILEV, O THEODOSIOU, GE and THOME, Z TILQUIN, A TIMMERMANS, J TIMOFEEV, VG and TKATCHEV, LG TODOROV, T TOET, DZ TOMARADZE, A TOME, B and TORASSA, E TORTORA, L TREILLE, D TRISCHUK, W and TRISTRAM, G TRONCON, C TSIROU, A TSYGANOV, EN TURALA, M and TURLUER, ML TUUVA, T TYAPKIN, IA TYNDEL, M and TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S ULLALAND, O and UVAROV, V VALENTI, G VALLAZZA, E FERRER, JAV and VANDERVELDE, C VANAPELDOORN, GW VANDAM, P VANDERHEIJDEN, M and VANDONINCK, WK VANELDIK, J VAZ, P VEGNI, G VENTURA, L VENUS, W VERBEURE, F VERLATO, M VERTOGRADOV, LS and VILANOVA, D VINCENT, P VITALE, L VLASOV, E VODOPYANOV, AS VOLLMER, M VOUTILAINEN, M VRBA, V WAHLEN, H and WALCK, C WALDNER, F WEHR, A WEIERSTALL, M WEILHAMMER, P and WETHERELL, AM WICKENS, JH WIELERS, M WILKINSON, GR and WILLIAMS, WSC WINTER, M WORMSER, G WOSCHNAGG, K ZAITSEV, A ZALEWSKA, A ZANINI, L ZAVRTANIK, D ZEVGOLATAKOS, E and ZIMIN, NI ZITO, M ZONTAR, D ZUBERI, R ZUMERLE, G
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: During the LEP running periods in 1990 and 1991 DELPHI has accumulated approximately 450000 Z0 decays into hadrons and charged leptons. The increased event statistics coupled with improved analysis techniques and improved knowledge of the LEP beam energies permit significantly better measurements of the mass and width of the Z0 resonance. Model independent fits to the cross sections and leptonic forward-backward asymmetries yield the following Z0 parameters: the mass and total width M(Z) = 91.187 +/- 0.009 GeV, GAMMA(Z) = 2.486 +/- 0.012 GeV, the hadronic and leptonic partial widths GAMMA(had) = 1.725 +/- 0.012GeV, GAMMA(l) = 83.01 +/- 0.52 MeV, the invisible width GAMMA(inv) = 512 +/- 10 MeV, the ratio of hadronic to leptonic partial widths R(l) = 20.78 +/- 0.15, and the Born level hadronic peak cross section sigma0 = 40.90 +/- 0.28 nb. Using these results and the value of alpha(s) determined from DELPHI data, the number of light neutrino species is determined to be 3.08 +/- 0.05. The individual leptonic widths are found to be: GAMMA(e) = 82.93 +/- 0.70 MeV, GAMMA(mu) = 83.20 +/- 1.11 MeV and GAMMA(tau) = 82.89 +/- 1.31 MeV. Using the measured leptonic forward-backward asymmetries and assuming lepton universality, the squared vector and axial-vector couplings of the Z0 to charged leptons are found to be g(V)l2 = (1.47 +/- 0.51) x 10(-3) and g(A)l2 = 0.2483 +/- 0.0016. A full Standard Model fit to the data yields a value of the top mass m(t) = 115(-82)+52 (expt.)-24(+23) (Higgs) GeV, corresponding to a value of the weak mixing angle sin2 theta(eff)lept = 0.2339 +/- 0.0015(expt.)-0.0004(+0.0001) (Higgs). Values are obtained for the variables S and T, or epsilon1 and epsilon3 which parameterize electroweak loop effects.
Published: 1994

20. J/PSI-PRODUCTION IN THE HADRONIC DECAYS OF THE Z

Author: ABREU, P ADAM, W ADYE, T AGASI, E AJINENKO, I and ALEKSAN, R ALEKSEEV, GD ALLPORT, PP ALMEHED, S ALMEIDA, FML ALVSVAAG, SJ AMALDI, U ANDREAZZA, A ANTILOGUS, P and APEL, WD APSIMON, RJ ARNOUD, Y ASMAN, B AUGUSTIN, JE and AUGUSTINUS, A BAILLON, P BAMBADE, P BARAO, F BARATE, R and BARBIELLINI, G BARDIN, DY BARKER, GJ BARONCELLI, A and BARRING, O BARRIO, JA BARTL, W BATES, MJ BATTAGLIA, M and BAUBILLIER, M BAUDOT, J BECKS, KH BEGALLI, M and BEILLIERE, P BELTRAN, P BENVENUTI, AC BERGGREN, M and BERTRAND, D BIANCHI, F BIGI, M BILENKY, MS BILLOIR, P and BJARNE, J BLOCH, D BLOCKI, J BLYTH, S BOCCI, V and BOGOLUBOV, PN BOLOGNESE, T BONESINI, M BONIVENTO, W and BOOTH, PSL BORISOV, G BOSIO, C BOSTJANCIC, B BOSWORTH, S and BOTNER, O BOUQUET, B BOURDARIOS, C BOWCOCK, TJV and BOZZO, M BRAIBANT, S BRANCHINI, P BRAND, KD BRENNER, RA and BRIAND, H BRICMAN, C BRILLAULT, L BROWN, RCA and BRUCKMAN, P BRUNET, JM BUGGE, L BURAN, T BUYS, A and BUYTAERT, JAMA CACCIA, M CALVI, M ROZAS, AJC CAMPION, R and CAMPORESI, T CANALE, V CANKOCAK, K CAO, F CARENA, F and CARRILHO, P CARROLL, L CASES, R CASO, C GIMENEZ, MVC and CATTAI, A CAVALLO, FR CERRITO, L CHABAUD, V CHAN, A and CHAPKIN, M CHARPENTIER, P CHAUSSARD, L CHAUVEAU, J and CHECCHIA, P CHELKOV, GA CHLIAPNIKOV, P CHOROWICZ, V and CHRIN, JTM CINDRO, V COLLINS, P CONTRERAS, JL CONTRI, R and CORTINA, E COSME, G COUCHOT, F CRAWLEY, HB CRENNELL, D CROSETTI, G MAESTRO, JC CZELLAR, S DAHLJENSEN, E and DAHM, J DALMAGNE, B DAM, M DAMGAARD, G DAUBIE, E and DAUM, A DAUNCEY, PD DAVENPORT, M DAVIES, J DASILVA, W and DEFOIX, C DELPIERRE, P DEMARIA, N DEANGELIS, A and DEBOECK, H DEBOER, W DEBRABANDERE, S DECLERCQ, C LASO, MDMD DELAVAISSIERE, C DELOTTO, B DEMIN, A DEPAULA, L and DESAINTJEAN, C DIJKSTRA, H DICIACCIO, L DJAMA, F and DOLBEAU, J DONSZELMANN, M DOROBA, K DRACOS, M DREES, J and DRIS, M DUFOUR, Y DUPONT, F EDSALL, D EHRET, R and EKELOF, T EKSPONG, G ELSING, M ENGEL, JP ERSHAIDAT, N and SANTO, ME FASSOULIOTIS, D FEINDT, M FERRER, A and FILIPPAS, TA FIRESTONE, A FOETH, H FOKITIS, E and FONTANELLI, F FORMENTI, F FOUSSET, JL FRANEK, B and FRENKIEL, P FRIES, DC FRODESEN, AG FRUHWIRTH, R and FULDAQUENZER, E FURSTENAU, H FUSTER, J GAMBA, D and GANDELMAN, M GARCIA, C GARCIA, J GASPAR, C GASPARINI, U and GAVILLET, P GAZIS, EN GELE, D GERBER, JP GIACOMELLI, P GILLESPIE, D GOKIELI, R GOLOB, B GOLOVATYUK, VM and CADENAS, JJGY GOPAL, G GORN, L GORSKI, M GRACCO, V and GRARD, F GRAZIANI, E GROSDIDIER, G GUNNARSSON, P GUY, J and HAEDINGER, U HAHN, F HAHN, M HAHN, S HAIDER, S and HAJDUK, Z HAKANSSON, A HALLGREN, A HAMACHER, K HAO, W and HARRIS, FJ HEDBERG, V HENRIQUES, R HERNANDEZ, JJ and HERNANDO, JA HERQUET, P HERR, H HESSING, TL HIGON, E and HILKE, HJ HILL, TS HOLMGREN, SO HOLT, PJ HOLTHUIZEN, D and HONORE, PF HOULDEN, M HUET, K HULTQVIST, K IOANNOU, P IVERSEN, PS JACKSON, JN JACOBSSON, R JALOCHA, P and JARLSKOG, G JARRY, P JEANMARIE, B JOHANSSON, EK JONKER, M JONSSON, L JUILLOT, P KAISER, M KALMUS, G KAPUSTA, F KARLSSON, M KARVELAS, E KATARGIN, A KATSANEVAS, S and KATSOUFIS, EC KERANEN, R KHOMENKO, BA KHOVANSKI, NN and KING, B KJAER, NJ KLEIN, H KLOVNING, A KLUIT, P and KOCHMEHRIN, A KOEHNE, JH KOENE, B KOKKINIAS, P and KORATZINOS, M KORYTOV, AV KOSTIOUKHINE, V KOURKOUMELIS, C and KOUZNETSOV, O KRAMER, PH KRAMMER, M KREUTER, C and KROLIKOWSKI, J KRONKVIST, I KRUPINSKI, W KUCEWICZ, W and KULKA, K KURVINEN, K LACASTA, C LAKTINEH, I and LAMBROPOULOS, C LAMSA, JW LANCERI, L LANGEFELD, P LAPIN, V LAST, I LAUGIER, JP LAUHAKANGAS, R LEDER, G and LEDROIT, F LEITNER, R LEMOIGNE, Y LEMONNE, J LENZEN, G and LEPELTIER, V LESIAK, T LEVY, JM LIEB, E LIKO, D and LINDNER, R LIPNIACKA, A LIPPI, I LOERSTAD, B LOKAJICEK, M LOKEN, JG LOPEZFERNANDEZ, A AGUERA, MAL LOS, M and LOUKAS, D LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G and MAILLARD, J MAIO, A MALTEZOS, A MANDL, F MARCO, J and MARECHAL, B MARGONI, M MARIN, JC MARIOTTI, C MARKOU, A and MARON, T MARTI, S MARTINEZRIVERO, C MARTINEZVIDAL, F and MATORRAS, F MATTEUZZI, C MATTHIAE, G MAZZUCATO, M and MCCUBBIN, M MCKAY, R MCNULTY, R MEDBO, J MERONI, C and MEYER, WT MICHELOTTO, M MIGLIORE, E MIKULEC, I MIRABITO, L MITAROFF, WA MITSELMAKHER, GV MJOERNMARK, U MOA, T and MOELLER, R MOENIG, K MONGE, MR MORETTINI, P MUELLER, H and MURRAY, WJ MURYN, B MYATT, G NARAGHI, F NAVARRIA, FL and NEGRI, P NEMECEK, S NEUMANN, W NEUMEISTER, N and NICOLAIDOU, R NIELSEN, BS NIKOLAENKO, V NISS, P and NOMEROTSKI, A NORMAND, A OBRAZTSOV, V OLSHEVSKI, AG and ORAVA, R OSTERBERG, K OURAOU, A PAGANINI, P PAGANONI, M and PAIN, R PALKA, H PAPADOPOULOU, TD PAPE, L PARODI, F and PASSERI, A PEGORARO, M PENNANEN, J PERALTA, L and PERNEGGER, H PERNICKA, M PERROTTA, A PETRIDOU, C and PETROLINI, A PHILLIPS, HT PIANA, G PIERRE, F PIMENTA, M and PLASZCZYNSKI, S PODOBRIN, O POL, ME POLOK, G and POROPAT, P POZDNIAKOV, V PREST, M PRIVITERA, P PULLIA, A and RADOJICIC, D RAGAZZI, S RAHMANI, H RAMES, J RATOFF, PN READ, AL REALE, M REBECCHI, P REDAELLI, NG and REGLER, M REID, D RENTON, PB RESVANIS, LK RICHARD, F and RICHARDSON, J RIDKY, J RINAUDO, G RIPP, I ROMERO, A and RONCAGLIOLO, I RONCHESE, P ROOS, L ROSENBERG, EI ROSSO, E ROUDEAU, P ROVELLI, T RUCKSTUHL, W RUHLMANNKLEIDER, V and RUIZ, A SAARIKKO, H SACQUIN, Y SAJOT, G SALT, J and SANCHEZ, J SANNINO, M SCHAEL, S SCHNEIDER, H SCHYNS, MAE and SCIOLLA, G SCURI, E SEGAR, AM SEITZ, A SEKULIN, R and SESSA, M SEUFERT, R SHELLARD, RC SICCAMA, I and SIEGTIST, P SIMONETTI, S SIMONETTO, F SISAKIAN, AN and SKAALI, TB SMADJA, G SMIRNOV, N SMIRNOVA, O SMITH, GR and SOSNOWSKI, R SOUZASANTOS, D SPASSOV, T SPIRITI, E and SQUARCIA, S STAECK, H STANESCU, C STAPNES, S STAVITSKI, I STAVROPOULOS, G STEPANIAK, K STICHELBAUT, F STOCCHI, A and STRAUSS, J STRAVER, J STRUB, R STUGU, B SZCZEKOWSKI, M SZEPTYCKA, M TABARELLI, T TCHIKILEV, O THEODOSIOU, GE and THOME, Z TILQUIN, A TIMMERMANS, J TIMOFEEV, VG and TKATCHEV, LG TODOROV, T TOET, DZ TOMARADZE, A TOME, B and TORASSA, E TORTORA, L TRANSTROMER, G TREILLE, D and TRISCHUK, W TRISTRAM, G TRONCON, C TSIROU, A TSYGANOV, EN TURLUER, ML TUUVA, T TYAPKIN, IA TYNDEL, M and TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S ULLALAND, O and UVAROV, V VALENTI, G VALLAZZA, E FERRER, JAV and VANDERVELDE, C VANAPELDOORN, GW VANDAM, P VANDERHEIJDEN, M and VANDONINCK, WK VANELDIK, D VAZ, P VEGNI, G VENTURA, L VENUS, W VERBEURE, F VERLATO, M VERTOGRADOV, LS and VILANOVA, D VITALE, L VLASOV, E VODOPYANOV, AS VOLLMER, M VOUTILAINEN, M VRBA, V WAHLEN, H WALCK, C WALDNER, F WEHR, A WEIERSTALL, M WEILHAMMER, P WETHERELL, AM and WICKENS, JH WIELERS, M WILKINSON, GR WILLIAMS, WSC and WINTER, M WITEK, M WORMSER, G WOSCHNAGG, K YIP, K and YUSHCHENKO, O ZACH, F ZAITSEV, A ZALEWSKA, A ZALEWSKI, P and ZAVRTANIK, D ZEVGOLATAKOS, E ZIMIN, NI ZITO, NM and ZONTAR, D ZUBERI, R ZUMERLE, G
Subjects: High Energy Physics::Experiment, Astrophysics::Cosmology and Extragalactic Astrophysics, Nuclear Experiment
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.
Published: 1994

21. SEARCH FOR THE STANDARD MODEL HIGGS-BOSON IN Z(0) DECAYS

Author: ABREU, P ADAM, W ADYE, T AGASI, E AJINENKO, I and ALEKSAN, R ALEKSEEV, GD ALLPORT, PP ALMEHED, S ALMEIDA, FML ALVSVAAG, SJ AMALDI, U ANDREAZZA, A ANTILOGUS, P and APEL, WD APSIMON, RJ ARNOUD, Y ASMAN, B AUGUSTIN, JE and AUGUSTINUS, A BAILLON, P BAMBADE, P BARAO, F BARATE, R and BARBIELLINI, G BARDIN, DY BAKER, GJ BARONCELLI, A and BARRING, O BARRIO, JA BARTL, W BATES, MJ BATTAGLIA, M and BAUBILLIER, M BECKS, KH BEGALLI, M BEILLIERE, P and BELTRAN, P BENVENUTI, AC BERGGREN, M BERTRAND, D and BIANCHI, F BIGI, M BILENKY, MS BILLOIR, P BJARNE, J and BLOCH, D BLOCKI, J BLYTH, S BOCCI, V BOGOLUBOV, PN and BOLOGNESE, T BONESINI, M BONIVENTO, W BOOTH, PSL and BORISOV, G BOSIO, C BOSTJANCIC, B BOSWORTH, S BOTNER, O and BOUDINOV, E BOUQUET, B BOURDARIOS, C BOWCOCK, TJV and BOZZO, M BRAIBANT, S BRANCHINI, P BRAND, KD BRENNER, RA and BRIAND, H BRICMAN, C BRILLAULT, L BROWN, RCA BRUNET, JM BUGGE, L BURAN, T BUYS, A BUYTAERT, JAMA CACCIA, M CALVI, M ROZAS, AJC CAMPION, R CAMPORESI, T and CANALE, V CANKOCAK, K CAO, F CARENA, F CARRILHO, P and CARROLL, L CASES, R CASO, C GIMENEZ, MVC CATTAI, A and CAVALLO, FR CERRITO, L CHABAUD, V CHAN, A CHAPKIN, M and CHARPENTIER, P CHAUVEAU, J CHECCHIA, P CHELKOV, GA and CHEVALIER, L CHLIAPNIKOV, P CHOROWICZ, V CHRIN, JTM and CINDRO, V COLLINS, P CONTRERAS, JL CONTRI, R CORTINA, E and COSME, G COUCHOT, F CRAWLEY, HB CRENNELL, D and CROSETTI, G MAESTRO, JC CZELLAR, S DAHLJENSEN, E DAHM, J and DALMAGNE, B DAM, M DAMGAARD, G DAUBIE, E DAUM, A and DAUNCEY, PD DAVENPORT, M DAVIES, J DASILVA, W DEFOIX, C and DELPIERRE, P DEMARIA, N DEANGELIS, A DEBOECK, H and DEBOER, W DEBRABANDERE, S DECLERCQ, C LASO, MDMD and DELAVAISSIERE, C DELOTTO, B DEMIN, A DEPAULA, L and DIJKSTRA, H DICIACCIO, L DJAMA, F DOLBEAU, J and DONSZELMANN, M DOROBA, K DRACOS, M DREES, J DRIS, M and DUFOUR, Y DUPONT, F EDSALL, D EHRET, R EKELOF, T and EKSPONG, G ELSING, M ENGEL, JP ERSHAIDAT, N SANTO, ME and FASSOULIOTIS, D FEINDT, M FERRER, A FILIPPAS, TA and FIRESTONE, A FOETH, H FOKITIS, E FONTANELLI, F FORMENTI, F FOUSSET, JL FRANCON, S FRANEK, B FRENKIEL, P and FRIES, DC FRODESEN, AG FRUHWIRTH, R FULDAQUENZER, F and FURSTENAU, H FUSTER, J GAMBA, D GANDELMAN, M GARCIA, C and GARCIA, J GASPAR, C GASPARINI, U GAVILLET, P GAZIS, EN GELE, D GERBER, JP GIACOMELLI, P GILLESPIE, D and GOKIELI, R GOLOB, B GOLOVATYUK, VM CADENAS, JJGY GOPAL, G GORN, L GORSKI, M GRACCO, V GRARD, F GRAZIANI, E and GROSDIDIER, G GUNNARSSON, P GUY, J HAEDINGER, U and HAHN, F HAHN, M HAHN, S HAIDER, S HAJDUK, Z and HAKANSSON, A HALLGREN, A HAMACHER, K DEMONCHENAULT, GH and HAO, W HARRIS, FJ HEDBERG, V HENRIQUES, R HERNANDEZ, JJ and HERNANDO, JA HERQUET, P HERR, H HESSING, TL HIGON, E and HILKE, HJ HILL, TS HOLMGREN, SO HOLT, PJ HOLTHUIZEN, D HONORE, PF HOULDEN, M HRUBEC, J HUET, K HULTQVIST, K IOANNOU, P IVERSEN, PS JACKSON, JN JACOBSSON, R and JALOCHA, P JARLSKOG, G JARRY, P JEANMARIE, B JOHANSSON, EK JONKER, M JONSSON, L JUILLOT, P KAISER, M KALMUS, G KAPUSTA, F KARLSSON, M KARVELAS, E KATSANEVAS, S and KATSOUFIS, EC KERANEN, R KHOMENKO, BA KHOVANSKI, NN and KING, B KJAER, NJ KLEIN, H KLOVNING, A KLUIT, P and KOCHMEHRIN, A KOEHNE, JH KOENE, B KOKKINIAS, P and KORATZINOS, M KORCYL, K KORYTOV, AV KOSTIOUKHINE, V and KOURKOUMELIS, C KOUZNETSOV, O KRAMER, PH KRAMMER, M and KREUTER, C KROLIKOWSKI, J KRONKVIST, I KRUPINSKI, W and KULKA, K KURVINEN, K LACASTA, C LAMBROPOULOS, C LAMSA, JW LANCERI, L LANGEFELD, P LAPIN, V LAST, I LAUGIER, JP LAUHAKANGAS, R LEDER, G LEDROIT, F LEITNER, R and LEMOIGNE, Y LEMONNE, J LENZEN, G LEPELTIER, V LESIAK, T and LEVY, JM LIEB, E LIKO, D LINDNER, R LIPNIACKA, A and LIPPI, I LOERSTAD, B LOKAJICEK, M LOKEN, JG and LOPEZFERNANDEZ, A AGUERA, MAL LOS, M LOUKAS, D LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G MAILLARD, J MAIO, A and MALTEZOS, A MANDL, F MARCO, J MARECHAL, B MARGONI, M and MARIN, JC MARIOTTI, C MARKOU, A MARON, T MARTI, S and MARTINEZRIVERO, C MARTINEZVIDAL, F MATORRAS, F and MATTEUZZI, C MATTHIAE, G MAZZUCATO, M MCCUBBIN, M MCKAY, R MCNULTY, R MEDBO, J MERONI, C MEYER, WT and MICHELOTTO, M MIGLIORE, E MIKULEC, I MIRABITO, L and MITAROFF, WA MITSELMAKHER, GV MJOERNMARK, U MOA, T and MOELLER, R MOENIG, K MONGE, MR MORETTINI, P MUELLER, H and MURRAY, WJ MURYN, B MYATT, G NARAGHI, F NAVARRIA, FL and NEGRI, P NEMECEK, S NEUMANN, W NEUMEISTER, N and NICOLAIDOU, R NIELSEN, BS NIKOLAENKO, V NILSEN, PES and NISS, P NOMEROTSKI, A NORMAND, A OBRAZTSOV, V OLSHEVSKI, AG ORAVA, R OSTERBERG, K OURAOU, A PAGANINI, P and PAGANONI, M PAIN, R PALKA, H PAPADOPOULOU, TD PAPE, L and PARODI, F PASSERI, A PEGORARO, M PENNANEN, J and PERALTA, L PERNEGGER, H PERNICKA, M PERROTTA, A and PETRIDOU, C PETROLINI, A PHILLIPS, HT PIANA, G PIERRE, F and PIMENTA, M PLASZCZYNSKI, S PODOBRIN, O POL, ME and POLOK, G POROPAT, P POZDNIAKOV, V PREST, M PRIVITERA, P and 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 and RICHARD, F RICHARDSON, J RIDKY, J RINAUDO, G ROMERO, A and RONCAGLIOLO, I RONCHESE, P ROOS, L ROSENBERG, EI and ROSSO, E ROUDEAU, P ROVELLI, T RUCKSTUHL, W and RUHLMANNKLEIDER, V RUIZ, A RYBICKI, K SAARIKKO, H and SACQUIN, Y SAJOT, G SALT, J SANCHEZ, J SANNINO, M and SCHAEL, S SCHNEIDER, H SCHYNS, MAE SCIOLLA, G SCURI, F and SEGAR, AM SEITZ, A SEKULIN, R SESSA, M SEUFERT, R and SHELLARD, RC SICCAMA, I SIEGRIST, P SIMONETTI, S and SIMONETTO, F SISAKIAN, AN SKJEVLING, G SMADJA, G and SMIRNOV, N SMIRNOVA, O SMITH, GR SOSNOWSKI, R and SOUZASANTOS, D SPASSOV, T SPIRITI, E SQUARCIA, S STAECK, H STANESCU, C STAPNES, S STAVITSKI, I STAVROPOULOS, G and STEPANIAK, K STICHELBAUT, F STOCCHI, A STRAVER, J and STRUB, R STUGU, B SZCZEKOWSKI, M SZEPTYCKA, M TABARELLI, T TCHIKILEV, O THEODOSIOU, GE THOME, Z TILQUIN, A and TIMMERMANS, J TIMOFEEV, VG TKATCHEV, LG TODOROV, T TOET, DZ TOMARADZE, A TOME, B TORASSA, E TORTORA, L and TREILLE, D TRISCHUK, W TRISTRAM, G TRONCON, C TSIROU, A and TSYGANOV, EN TURALA, M TURLUER, ML TUUVA, T TYAPKIN, IA TYNDEL, M TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S and ULLALAND, O UVAROV, V VALENTI, G VALLAZZA, E FERRER, JAV VANDERVELDE, C VANAPELDOORN, GW VANDAM, P and VANDERHEIJDEN, M VANDONINCK, WK VANELDIK, J VAZ, P and VEGNI, G VENTURA, L VENUS, W VERBEURE, F VERLATO, M and VERTOGRADOV, LS VILANOVA, D VINCENT, P VITALE, L VLASOV, E VODOPYANOV, AS VOLLMER, M VOUTILAINEN, M VRBA, V and WAHLEN, H WALCK, C WALDNER, F WEHR, A WEIERSTALL, M and WEILHAMMER, P WETHERELL, AM WICKENS, JH WIELERS, M and WILKINSON, GR WILLIAMS, WSC WINTER, M WITEK, M WORMSER, G WOSCHNAGG, K YIP, K YUSHCHENKO, O ZAITSEV, A and ZALEWSKA, A ZALEWSKI, P ZAVRTANIK, D ZEVGOLATAKOS, E and ZIMIN, NI ZITO, M ZONTAR, D ZUBERI, R ZUMERLE, G
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: A search for the Standard Model Higgs boson was performed in the data sample of around 1 million hadronic Z0 decays recorded in 1991 and 1992 with the DELPHI detector at LEP. The Higgs boson was searched for through its production in association with either neutrinos, electrons or muons. Four low mass events remain after the selections in the charged leptonic channels, that are likely to be due to background, especially four fermion processes. These results restrict the mass of the Standard Model Higgs boson to be larger than 55.7 GeV/c2 at the 95% confidence level.
Published: 1994

22. MEASUREMENT OF GAMMA(B(B)OVER-BAR)/GAMMA(HAD) USING IMPACT PARAMETER MEASUREMENTS AND LEPTON IDENTIFICATION

Author: Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, Gd, Allport, Pp, Almehed, S., Almeida, Fml, 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., Beltran, P., Benvenuti, Ac, Berggren, M., Bertrand, D., Bianchi, F., Bigi, M., Bilenky, Ms, Billoir, P., Bjarne, J., Bloch, D., Blume, M., Blyth, S., Bocci, V., Bolognese, T., Bonesini, M., Bonivento, W., Booth, Psl, Borisov, G., Bosio, C., Bostjancic, B., Bosworth, S., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, Tjv, Bozzo, M., Branchini, P., Brand, Kd, Brenner, Ra, Briand, H., Bricman, C., Brillault, L., Brown, Rca, Bruckman, P., Brunet, Jm, Bugge, L., Buran, T., Buys, A., Caccia, M., Calvi, M., Rozas, Ajc, Camporesi, T., Canale, V., Canepa, M., Cankocak, K., Cao, F., Carena, F., Carrilho, P., Carroll, L., Caso, C., Cassio, V., Gimenez, Mvc, Cattai, A., Cavallo, Fr, Cerrito, L., Chabaud, V., Chan, A., Charpentier, P., Chaussard, L., Chauveau, J., Checchia, P., Chelkov, Ga, Chilapnikov, P., Chochula, P., Chorowicz, V., Chrin, Jtm, 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., Laso, Mdmd, Vaissiere, Cd, 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., Ekelof, T., Ekspong, G., Elsing, M., Engel, Jp, Ershaidat, N., Santo, Me, Fassouliotis, D., Feindt, M., Fenyuk, A., Ferrer, A., Filippas, Ta, Firestone, A., Foeth, H., Fokitis, E., Fontanelli, F., Formenti, F., Fousset, Jl, Franek, B., Frenkiel, P., Fries, Dc, Frodesen, Ag, Fruhwirth, R., Fuldaquenzer, F., Furstenau, H., Fuster, J., Gamba, D., Gandelman, M., Garcia, C., Garcia, J., Gaspar, C., Gasparini, U., Gavillet, P., Gazis, En, Gele, D., Gerber, Jp, Gillespie, D., Gokieli, R., Golob, B., Gomez, Jj, Cadenas, Y., Gopal, G., Gorn, L., Gorski, M., Gracco, V., Grard, F., Graziani, E., Grosdidier, G., Gunnarsson, P., Guy, J., Haedinger, U., Hahn, F., Hahn, M., Hahn, S., Haider, S., Hajduk, Z., Hakansson, A., Hallgren, A., Hamacher, K., Hao, W., Harris, Fj, Hedberg, V., Henriques, R., Hernandez, Jj, Hernando, Ja, Herquet, P., Herr, H., Hessing, Tl, Higon, E., Hilke, Hj, Hill, Ts, Holmgren, So, Holt, Pj, Holthuizen, D., Honore, Pf, Houlden, M., Hrubec, J., Huet, K., Hultqvist, K., Ioannou, P., Iversen, Ps, Jackson, Jn, Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, G., Jarry, P., Jeanmarie, B., Johansson, Ek, Jonsson, L., 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., Kulka, K., Kurvinen, K., Lacasta, C., Laktineh, I., Lambropoulos, C., Lamsa, Jw, Lanceri, L., Langefeld, P., Lapin, V., Last, I., Laugier, Jp, Lauhakangas, R., Ledroit, F., Lefebure, V., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Levy, Jm, Liko, D., Lindner, R., Lipniacka, A., Lippi, I., Loerstad, B., Lokajicek, M., Loken, Jg, Lopezfernandez, A., Aguera, Mal, Loukas, D., Lozano, Jj, Lutz, P., Lyons, L., Maehlum, G., Maillard, J., Maio, A., Maltezos, A., Malychev, V., Mandl, F., Marco, J., Marechal, B., Margoni, M., Marin, Jc, Mariotti, C., Markou, A., Maron, T., Martinezrivero, C., Martinezvidal, F., Garcia, Smi, Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Medbo, J., Meroni, C., Meyer, Wt, Michelotto, M., Migliore, E., Mikulec, I., Mirabito, L., Mitaroff, Wa, Mjoernmark, U., Moa, T., Moeller, R., Moenig, K., MONGE, MR, Morettini, P., Mueller, H., Murray, Wj, Muryn, B., Myatt, G., Naraghi, F., Navarria, Fl, Navas, S., Negri, P., Nemecek, S., Neumann, W., Neumeister, N., Nicolaidou, R., Nielsen, Bs, 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., Pain, R., Palka, H., Papadopoulou, Td, Pape, L., Parodi, F., Passeri, A., Pegoraro, M., Pennanen, J., Peralta, L., Perevozchikov, V., 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, M., Privitera, P., 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., 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., Oxana Smirnova, Smith, Gr, Sosnowski, R., Souzasantos, D., Spassov, T., Spiriti, E., Squarcia, S., Staeck, H., Stanescu, C., Stapnes, S., Stavitski, I., Stavropoulos, G., Stepaniak, K., Stichelbaut, F., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Tchikilev, O., Theodosiou, Ge, Tilquin, A., Timmermans, J., Tkatchev, Lg, Todorov, T., Toet, Dz, Tomaradze, A., Tome, B., Torassa, E., Tortora, L., Transtromer, G., Treille, D., Trischuk, W., Tristram, G., Trombini, A., Troncon, C., Tsirou, A., Turluer, Ml, Tuuva, T., Tyapkin, Ia, Tyndel, M., Tzamarias, S., Ueberschaer, B., Ueberschaer, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Ferrer, Jav, Vanapeldoorn, Gw, Vandam, P., Vandoninck, Wk, Vaneldik, J., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, Ls, Vilanova, D., Vincent, P., Vitale, L., Vlasov, E., Vodopyanov, As, Voutilainen, M., 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., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, Ni, Zito, M., Zontar, D., Zuberi, R., Zucchelli, Gc, and Zumerle, G.
Subjects: DELPHI, Z partial decay width, b tagging, B-MESONS, MONTE-CARLO, HADRONIC DECAYS, HEAVY QUARKS, FRAGMENTATION, High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: The partial decay width of the Z to {Mathematical expression} quark pairs has been measured by the DELPHI detector at LEP. b-hadrons, containing b-quarks, were tagged by leptons with high transverse momentum relative to the hadron or by tracks with large impact parameters to the primary vertex. The ratio of the numbers of events with a single such tag to those with two tags was used to estimate the efficiency of the method and to reduce the systematic uncertainty. Combining all methods, the value: {Mathematical expression} was found, where the third error corresponds to a±8% uncertainty on the {Mathematical expression} production width. A maximum likelihood in to the single and di-lepton distributions gave the branching fraction of the decays of b-quarks to leptons as: {Mathematical expression} © 1995 Springer-Verlag.

23. LHCb calorimeters : Technical Design Report

Author: Barbosa Marinho, P R., Bediaga, I., Cernicchiaro, G., Franca Barbosa, A., Magnin, J., Marques de Miranda, J., Massafferri, A., Reis, A., Silva, R., Amato, S., Colrain, P., Da Silva, T., De Mello-Neto, J R T., De Paula, L., Gandelman, M., Lopes, J H., Marechal, B., Moraes, D., Polycarpo, E., Ajaltouni, Z., Bohner, G., Breton, V., Cornat, R., Deschamps, O., Falvard, A., Aslanides, E., Cachemiche, J.P., Le Gac, R., Leroy, O., Liotard, P.L., Menouni, M., Potheau, R., Tsaregorodtsev, A., Viaud, B., Barrand, G., Beigbeder-Beau, C., Breton, D., Caceres, T., Callot, O., Cros, P., D'Almagne, B., Delcourt, B., Fulda-Quenzer, F., Jacholkowska, A., Schwierz, R., Spaan, B., Bauer, C., Baumeister, D., Bulian, N., Fuchs, H P., Glebe, T., Hofmann, W., Knoepfle, K T., Loechner, S., Schmelling, M., Schwingenheuer, B., Sciacca, F., Sexauer, E., Trunk, U., Bachmann, S., Bock, P., Deppe, H., Eisele, F., Feuerstack-Raible, M., Henneberger, S., Igo-Kemenes, P., Rusnyak, R., Stange, U., Walter, M., Wiedner, D., Uwer, U., Lindenstruth, V., Richter, R., Schulz, M W., Walsch, A., Anelli, M., Bencivenni, G., Bloise, C., Bossi, F., Campana, P., Capon, G., De Simone, P., Forti, C., Franceschi, A., Murtas, F., Passalacqua, L., Patera, V., Saputi, A., Sciubba, A., Bargiotti, M., Bertin, A., Bruschi, M., Capponi, M., D'Antone, I., De Castro, S., Faccioli, P., Fabbri, L., Galli, D., Giacobbe, B., Marconi, U., Massa, I., Piccinini, M., Poli, M., Semprini-Cesari, N., Spighi, R., Vagnoni, V., Vecchi, S., Villa, M., Vitale, A., Zoccoli, A., Cadeddu, S., Cardini, A., Caria, M., Lai, A., Marras, D., Pinci, D., Saitta, B., Carassiti, V., Cotta-Ramusino, A., Dalpiaz, P., Evangelisti, F., Gianoli, A., Malaguti, R., Martini, M., Petrucci, F., Savrie, M., Bizzeti, A., Calvetti, M., Collazuol, G., Iacopini, E., Passaleva, G., Veltri, M., Cuneo, S., Fontanelli, F., Gracco, V., Musico, P., Petrolini, A., Sannino, M., Alemi, M., Bellunato, T., Calvi, M., Matteuzzi, C., Musy, M., Negri, P., Paganoni, M., Auriemma, G., Benussi, L., Bocci, V., Bosio, C., Chiodi, G., Fidanza, D., Frenkel, A., Harrison, K., Kreslo, I., Mari, S., Martellotti, G., Martinez, S., Penso, G., Pirozzi, G., Santacesaria, R., Satriano, C., Satta, A., Carboni, G., Domenici, D., Ganis, G., Gatta, M., Messi, R., Pacciani, L., Paoluzi, L., Santovetti, E., Van Apeldoorn, G., Van Bakel, N., Bauer, T S., Van den Brand, J., Bulten, H J., Doets, M., Van der Eijk, R., Guz, Yu., Gromov, V., Hierck, R., Hommels, L., Jans, E., Ketel, T., Klous, S., Koene, B., Merk, M., Needham, M., Schuijlenburg, H., Sluijk, T., Van Tilburg, J., De Vries, H., Wiggers, L., Gao, C., Jiang, C., Sun, H., Zhu, Z., Bisset, M., Cheng, J P., Cui, Y G., Gao, Y., He, H J., Kuang, Y P., Li, Y J., Li, Q., Liao, Y., Ni, J P., Shao, B B., Su, J J., Tian, Y R., Wang, Q., Yan, Q S., Banas, E., Blocki, J., Galuszka, K., Hajduk, L., Jalocha, P., Kapusta, P., Kisielewski, B., Kucewicz, W., Lesiak, T., Michalowski, J., Muryn, B., Natkaniec, Z., Ostrowicz, W., Polok, G., Rulikowska-Zarebska, E., Stodulski, M., Witek, M., Zychowski, P., Adamus, M., Chlopik, A., Guzik, Z., Nawrot, A., Szczekowski, M., Anghel, D V., Coca, C., Cimpean, A., Giolu, G., Magureanu, C., Popescu, S., Preda, T., Rosca, A M., Rusu, V L., Bolotov, V., Filippov, S., Gavrilov, J., Guschin, E., Kloubov, V., Kravchuk, L., Laptev, S., Laptev, V., Postoev, V., Sadovski, A., Semeniouk, I., Barsuk, S., Belyaev, I., Golutvin, A., Gouchtchine, O., Kiritchenko, V., Kostina, G., Levitski, N., Morozov, A., Pakhlov, P., Roussinov, D., Rusinov, V., Semenov, S., Soldatov, A., Tarkovski, E., Beloborodov, K., Bondar, A., Bozhenok, A., Buzulutskov, A., Eidelman, S., Golubev, V., Oreshkin, S., Poluektov, A., Serednyakov, S., Shekhtman, L., Shwartz, B., Silagadze, Z K., Sokolov, A., Vasiljev, A., Afanassieva, L A., Ajinenko, I., Beloous, K., Brekhovskikh, V., Denissov, S., Dorokhov, A V., Dzhelyadin, R I., Kobelev, A., Konoplyannikov, A K., Likhoded, A K., Matveev, V D., Novikov, V., Obraztsov, V F., Ostankov, A P., Rykalin, V I., Semenov, V K., Shapkin, M M., Smirnov, N., Soldatov, M M., Talanov, V V., Yushchenko, O P., Borkovsky, M., Botchine, B., Guetz, S., Lazarev, V., Saguidova, N., Spiridenkov, E., Velitchko, I., Vorobyov, A., Vorobyov, An., Ballabriga, R., Ferragut, S., Garrido, L., Gascon, D., Luengo, S., Miquel, R., Peralta, D., Rosello, M., Vilasis, X., Adeva, B., Conde, P., Gomez, F., Hernando, JA., Iglesias, A., Lopez-Aguera, A., Pazos, A., Plo, M., Rodriguez, J M., Saborido, J J., Tobar, M J., Bartalini, P., Bay, A., Carron, B., Currat, C., Dormond, O., Duerrenmatt, F., Ermoline, Y., Frei, R., Gagliardi, G., Haefeli, G., Hertig, J P., Koppenburg, P., Nakada, T., Perroud, J P., Ronga, F., Schneider, O., Studer, L., Tareb, M., Tran, M T., Bernet, R., Holzschuh, E., Sievers, P., Steinkamp, O., Straumann, U., Wyler, D., Ziegler, M., Maznichenko, S., Omelaenko, O., Ranyuk, Y., Aushev, V., Kiva, V., Kolomiets, I., Pavlenko, Y., Pugatch, V., Vasiliev, Y., Zerkin, V., Brook, N H., Cole, J E., Head, R D., Phillips, A., Wilson, F F., George, K., Gibson, V., Jones, C R., Katvars, S G., Shepherd-Themistocleous, C., Ward, C P., Wotton, S A., Brew, C A J., Densham, C J., Easo, S., Franek, B J., Guy, J G V., Halsall, R N J., Lidbury, J A., Morris, J V., Papanestis, A., Patrick, G N., Soler, F J P., Temple, S A., Woodward, M L., Eisenhardt, S., Khan, A., Muheim, F., Playfer, S., Walker, A., Flavell, A J., Halley, A., O'Shea, V., Biagi, S., Bowcock, T., Gamet, R., Hayman, P., McCubbin, M L., Parkes, C., Patel, G., Walsh, S., Wright, V., Barber, G J., Clark, D., Dauncey, P., Duane, A., Girone, M., Hassard, J., Hill, R., John, M J., Tejessy, W., Teubert, F., Toledo Alarcon, J., Ullaland, O., Valassi, A., Vazquez Regueiro, P., Vinci do Santos, F., Wertelaers, P., Wright, A., Barbosa Marinho, P R., Bediaga, I., Cernicchiaro, G., Franca Barbosa, A., Magnin, J., Marques de Miranda, J., Massafferri, A., Reis, A., Silva, R., Amato, S., Colrain, P., Da Silva, T., De Mello-Neto, J R T., De Paula, L., Gandelman, M., Lopes, J H., Marechal, B., Moraes, D., Polycarpo, E., Ajaltouni, Z., Bohner, G., Breton, V., Cornat, R., Deschamps, O., Falvard, A., Aslanides, E., Cachemiche, J.P., Le Gac, R., Leroy, O., Liotard, P.L., Menouni, M., Potheau, R., Tsaregorodtsev, A., Viaud, B., Barrand, G., Beigbeder-Beau, C., Breton, D., Caceres, T., Callot, O., Cros, P., D'Almagne, B., Delcourt, B., Fulda-Quenzer, F., Jacholkowska, A., Schwierz, R., Spaan, B., Bauer, C., Baumeister, D., Bulian, N., Fuchs, H P., Glebe, T., Hofmann, W., Knoepfle, K T., Loechner, S., Schmelling, M., Schwingenheuer, B., Sciacca, F., Sexauer, E., Trunk, U., Bachmann, S., Bock, P., Deppe, H., Eisele, F., Feuerstack-Raible, M., Henneberger, S., Igo-Kemenes, P., Rusnyak, R., Stange, U., Walter, M., Wiedner, D., Uwer, U., Lindenstruth, V., Richter, R., Schulz, M W., Walsch, A., Anelli, M., Bencivenni, G., Bloise, C., Bossi, F., Campana, P., Capon, G., De Simone, P., Forti, C., Franceschi, A., Murtas, F., Passalacqua, L., Patera, V., Saputi, A., Sciubba, A., Bargiotti, M., Bertin, A., Bruschi, M., Capponi, M., D'Antone, I., De Castro, S., Faccioli, P., Fabbri, L., Galli, D., Giacobbe, B., Marconi, U., Massa, I., Piccinini, M., Poli, M., Semprini-Cesari, N., Spighi, R., Vagnoni, V., Vecchi, S., Villa, M., Vitale, A., Zoccoli, A., Cadeddu, S., Cardini, A., Caria, M., Lai, A., Marras, D., Pinci, D., Saitta, B., Carassiti, V., Cotta-Ramusino, A., Dalpiaz, P., Evangelisti, F., Gianoli, A., Malaguti, R., Martini, M., Petrucci, F., Savrie, M., Bizzeti, A., Calvetti, M., Collazuol, G., Iacopini, E., Passaleva, G., Veltri, M., Cuneo, S., Fontanelli, F., Gracco, V., Musico, P., Petrolini, A., Sannino, M., Alemi, M., Bellunato, T., Calvi, M., Matteuzzi, C., Musy, M., Negri, P., Paganoni, M., Auriemma, G., Benussi, L., Bocci, V., Bosio, C., Chiodi, G., Fidanza, D., Frenkel, A., Harrison, K., Kreslo, I., Mari, S., Martellotti, G., Martinez, S., Penso, G., Pirozzi, G., Santacesaria, R., Satriano, C., Satta, A., Carboni, G., Domenici, D., Ganis, G., Gatta, M., Messi, R., Pacciani, L., Paoluzi, L., Santovetti, E., Van Apeldoorn, G., Van Bakel, N., Bauer, T S., Van den Brand, J., Bulten, H J., Doets, M., Van der Eijk, R., Guz, Yu., Gromov, V., Hierck, R., Hommels, L., Jans, E., Ketel, T., Klous, S., Koene, B., Merk, M., Needham, M., Schuijlenburg, H., Sluijk, T., Van Tilburg, J., De Vries, H., Wiggers, L., Gao, C., Jiang, C., Sun, H., Zhu, Z., Bisset, M., Cheng, J P., Cui, Y G., Gao, Y., He, H J., Kuang, Y P., Li, Y J., Li, Q., Liao, Y., Ni, J P., Shao, B B., Su, J J., Tian, Y R., Wang, Q., Yan, Q S., Banas, E., Blocki, J., Galuszka, K., Hajduk, L., Jalocha, P., Kapusta, P., Kisielewski, B., Kucewicz, W., Lesiak, T., Michalowski, J., Muryn, B., Natkaniec, Z., Ostrowicz, W., Polok, G., Rulikowska-Zarebska, E., Stodulski, M., Witek, M., Zychowski, P., Adamus, M., Chlopik, A., Guzik, Z., Nawrot, A., Szczekowski, M., Anghel, D V., Coca, C., Cimpean, A., Giolu, G., Magureanu, C., Popescu, S., Preda, T., Rosca, A M., Rusu, V L., Bolotov, V., Filippov, S., Gavrilov, J., Guschin, E., Kloubov, V., Kravchuk, L., Laptev, S., Laptev, V., Postoev, V., Sadovski, A., Semeniouk, I., Barsuk, S., Belyaev, I., Golutvin, A., Gouchtchine, O., Kiritchenko, V., Kostina, G., Levitski, N., Morozov, A., Pakhlov, P., Roussinov, D., Rusinov, V., Semenov, S., Soldatov, A., Tarkovski, E., Beloborodov, K., Bondar, A., Bozhenok, A., Buzulutskov, A., Eidelman, S., Golubev, V., Oreshkin, S., Poluektov, A., Serednyakov, S., Shekhtman, L., Shwartz, B., Silagadze, Z K., Sokolov, A., Vasiljev, A., Afanassieva, L A., Ajinenko, I., Beloous, K., Brekhovskikh, V., Denissov, S., Dorokhov, A V., Dzhelyadin, R I., Kobelev, A., Konoplyannikov, A K., Likhoded, A K., Matveev, V D., Novikov, V., Obraztsov, V F., Ostankov, A P., Rykalin, V I., Semenov, V K., Shapkin, M M., Smirnov, N., Soldatov, M M., Talanov, V V., Yushchenko, O P., Borkovsky, M., Botchine, B., Guetz, S., Lazarev, V., Saguidova, N., Spiridenkov, E., Velitchko, I., Vorobyov, A., Vorobyov, An., Ballabriga, R., Ferragut, S., Garrido, L., Gascon, D., Luengo, S., Miquel, R., Peralta, D., Rosello, M., Vilasis, X., Adeva, B., Conde, P., Gomez, F., Hernando, JA., Iglesias, A., Lopez-Aguera, A., Pazos, A., Plo, M., Rodriguez, J M., Saborido, J J., Tobar, M J., Bartalini, P., Bay, A., Carron, B., Currat, C., Dormond, O., Duerrenmatt, F., Ermoline, Y., Frei, R., Gagliardi, G., Haefeli, G., Hertig, J P., Koppenburg, P., Nakada, T., Perroud, J P., Ronga, F., Schneider, O., Studer, L., Tareb, M., Tran, M T., Bernet, R., Holzschuh, E., Sievers, P., Steinkamp, O., Straumann, U., Wyler, D., Ziegler, M., Maznichenko, S., Omelaenko, O., Ranyuk, Y., Aushev, V., Kiva, V., Kolomiets, I., Pavlenko, Y., Pugatch, V., Vasiliev, Y., Zerkin, V., Brook, N H., Cole, J E., Head, R D., Phillips, A., Wilson, F F., George, K., Gibson, V., Jones, C R., Katvars, S G., Shepherd-Themistocleous, C., Ward, C P., Wotton, S A., Brew, C A J., Densham, C J., Easo, S., Franek, B J., Guy, J G V., Halsall, R N J., Lidbury, J A., Morris, J V., Papanestis, A., Patrick, G N., Soler, F J P., Temple, S A., Woodward, M L., Eisenhardt, S., Khan, A., Muheim, F., Playfer, S., Walker, A., Flavell, A J., Halley, A., O'Shea, V., Biagi, S., Bowcock, T., Gamet, R., Hayman, P., McCubbin, M L., Parkes, C., Patel, G., Walsh, S., Wright, V., Barber, G J., Clark, D., Dauncey, P., Duane, A., Girone, M., Hassard, J., Hill, R., John, M J., Tejessy, W., Teubert, F., Toledo Alarcon, J., Ullaland, O., Valassi, A., Vazquez Regueiro, P., Vinci do Santos, F., Wertelaers, P., and Wright, A.

24. Morphological development in the first life phase of Adriatic sturgeon Acipenser naccarii under controlled conditions.

Author: Cabrera-Castro R, Zabala C, Soriguer MC, Domezain A, and Hernando JA
Subjects: Animal Fins embryology, Animals, Embryo, Nonmammalian, Female, Fishes anatomy & histology, Male, Pigmentation, Yolk Sac, Fishes embryology
Abstract: Early development of the Adriatic sturgeon Acipenser naccarii from its free embryo after hatching (stage 36), until late embryo stage, when the transition to exogenous feeding starts (stage 45) is described. Special emphasis is given to morphological development and description of the different structures that are formed at each life stage. After hatching, free embryos still present embryonic characteristics, little pigmentation and an ovoid yolk sac. The mouth begins to open on the second day post hatch (dph) and is fully open at 3 dph. The head begins to separate from the body at 4 dph and straightens at 6 dph. The first fins to appear are the pectoral fins on the yolk sac and an embryological fin fold that extends from behind the head to the posterior part of the yolk sac. All other fins will develop from this fold. At 7 dph the caudal fin begins to take a heterocercal form and dorsal scutes are observed. This study provides information that will assist aquaculturists by establishing a reference for the normal development of A. naccarii, which may be useful for evaluating the suitability and quality of fish produced for restocking., (© 2018 The Fisheries Society of the British Isles.)
Published: 2018
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25. Determination of f(s)/f(d) for 7 TeV pp collisions and measurement of the B0→D-K+ branching fraction.

Author: Aaij R, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Alkhazov G, Alvarez Cartelle P, Alves AA Jr, Amato S, Amhis Y, Amoraal J, Anderson J, Appleby RB, Gutierrez OA, Arrabito L, Artamonov A, Artuso M, Aslanides E, Auriemma G, Bachmann S, Back JJ, Bailey DS, Balagura V, Baldini W, Barlow RJ, Barschel C, Barsuk S, Barter W, Bates A, Bauer C, Bauer T, Bay A, Bediaga I, Belous K, Belyaev I, Ben-Haim E, Benayoun M, Bencivenni G, Benson S, Benton J, Bernet R, Bettler MO, van Beuzekom M, Bien A, Bifani S, Bizzeti A, Bjørnstad PM, Blake T, Blanc F, Blanks C, Blouw J, Blusk S, Bobrov A, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock TJ, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brisbane S, Britsch M, Britton T, Brook NH, Büchler-Germann A, Bursche A, Buytaert J, Cadeddu S, Carvajal JM, Callot O, Calvi M, Gomez MC, Camboni A, Campana P, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Akiba KC, Casse G, Cattaneo M, Charles M, Charpentier P, Chiapolini N, Vidal XC, Clarke PE, Clemencic M, Cliff HV, Closier J, Coca C, Coco V, Cogan J, Collins P, Constantin F, Conti G, Contu A, Cook A, Coombes M, Corti G, Cowan GA, Currie R, D'Almagne B, D'Ambrosio C, David P, David PN, De Bonis I, De Capua S, De Cian M, De Lorenzi F, De Miranda JM, De Paula L, De Simone P, Decamp D, Deckenhoff M, Degaudenzi H, Deissenroth M, Del Buono L, Deplano C, Deschamps O, Dettori F, Dickens J, Dijkstra H, Batista PD, Dossett D, Dovbnya A, Dupertuis F, Dzhelyadin R, Eames C, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisele F, Eisenhardt S, Ekelhof R, Eklund L, Elsasser Ch, d'Enterria DG, Pereira DE, Estève L, Falabella A, Fanchini E, Färber C, Fardell G, Farinelli C, Farry S, Fave V, Albor VF, Ferro-Luzzi M, Filippov S, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Frank M, Frei C, Frosini M, Furcas S, Torreira AG, Galli D, Gandelman M, Gandini P, Gao Y, Garnier JC, Garofoli J, Garrido L, Gaspar C, Gauvin N, Gersabeck M, Gershon T, Ghez P, Gibson V, Gligorov VV, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Gándara MG, Diaz RG, Cardoso LA, Graugés E, Graziani G, Grecu A, Gregson S, Gui B, Gushchin E, Guz Y, Gys T, Haefeli G, Haines SC, Hampson T, Hansmann-Menzemer S, Harji R, Harnew N, Harrison J, Harrison PF, He J, Heijne V, Hennessy K, Henrard P, Morata JA, van Herwijnen E, Hofmann W, Holubyev K, Hopchev P, Hulsbergen W, Hunt P, Huse T, Huston RS, Hutchcroft D, Hynds D, Iakovenko V, Ilten P, Imong J, Jacobsson R, Hussein MJ, Jans E, Jansen F, Jaton P, Jean-Marie B, Jing F, John M, Johnson D, Jones CR, Jost B, Kandybei S, Karbach TM, Keaveney J, Kerzel U, Ketel T, Keune A, Khanji B, Kim YM, Knecht M, Koblitz S, Koppenburg P, Kozlinskiy A, Kravchuk L, Kreplin K, Krocker G, Krokovny P, Kruse F, Kruzelecki K, Kucharczyk M, Kukulak S, Kumar R, Kvaratskheliya T, La Thi VN, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert RW, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Le Gac R, van Leerdam J, Lees JP, Lefèvre R, Leflat A, Lefrançois J, Leroy O, Lesiak T, Li L, Li YY, Li Gioi L, Lieng M, Lindner R, Linn C, Liu B, Liu G, Lopes JH, Asamar EL, Lopez-March N, Luisier J, Machefert F, Machikhiliyan IV, Maciuc F, Maev O, Magnin J, Maier A, Malde S, Mamunur RM, Manca G, Mancinelli G, Mangiafave N, Marconi U, Märki R, Marks J, Martellotti G, Martens A, Martin L, Sánchez AM, Santos DM, Massafferri A, Mathe Z, Matteuzzi C, Matveev M, Maurice E, Maynard B, Mazurov A, McGregor G, McNulty R, Mclean C, Meissner M, Merk M, Merkel J, Messi R, Miglioranzi S, Milanes DA, Minard MN, Monteil S, Moran D, Morawski P, Morris JV, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Musy M, Naik P, Nakada T, Nandakumar R, Nardulli J, Nedos M, Needham M, Neufeld N, Nguyen-Mau C, Nicol M, Nies S, Niess V, Nikitin N, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Goicochea JM, Pal B, Palacios J, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson CJ, Passaleva G, Patel GD, Patel M, Paterson SK, Patrick GN, Patrignani C, Pavel-Nicorescu C, Alvarez AP, Pellegrino A, Penso G, Altarelli MP, Perazzini S, Perego DL, Trigo EP, Yzquierdo AP, Perret P, Perrin-Terrin M, Pessina G, Petrella A, Petrolini A, Pie Valls B, Pietrzyk B, Pilar T, Pinci D, Plackett R, Playfer S, Plo Casasus M, Polok G, Poluektov A, Polycarpo E, Popov D, Popovici B, Potterat C, Powell A, du Pree T, Pugatch V, Navarro AP, Qian W, Rademacker JH, Rakotomiaramanana B, Raniuk I, Raven G, Redford S, Reid MM, dos Reis AC, Ricciardi S, Rinnert K, Roa Romero DA, Robbe P, Rodrigues E, Rodrigues F, Cobo CR, Perez PR, Rogers GJ, Romanovsky V, Rouvinet J, Ruf T, Ruiz H, Sabatino G, Silva JJ, Sagidova N, Sail P, Saitta B, Salzmann C, Sannino M, Santacesaria R, Santinelli R, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schleich S, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune MH, Schwemmer R, Sciubba A, Seco M, Semennikov A, Senderowska K, Serra N, Serrano J, Seyfert P, Shao B, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Coutinho RS, Skottowe HP, Skwarnicki T, Smith AC, Smith NA, Sobczak K, Soler FJ, Solomin A, Soomro F, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stoica S, Stone S, Storaci B, Straumann U, Styles N, Swientek S, Szczekowski M, Szczypka P, Szumlak T, T'jampens S, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Topp-Joergensen S, Tran MT, Tsaregorodtsev A, Tuning N, Ukleja A, Urquijo P, Uwer U, Vagnoni V, Valenti G, Gomez RV, Regueiro PV, Vecchi S, Velthuis JJ, Veltri M, Vervink K, Viaud B, Videau I, Vilasis-Cardona X, Visniakov J, Vollhardt A, Voong D, Vorobyev A, Voss H, Wacker K, Wandernoth S, Wang J, Ward DR, Webber AD, Websdale D, Whitehead M, Wiedner D, Wiggers L, Wilkinson G, Williams MP, Williams M, Wilson FF, Wishahi J, Witek M, Witzeling W, Wotton SA, Wyllie K, Xie Y, Xing F, Yang Z, Young R, Yushchenko O, Zavertyaev M, Zhang L, Zhang WC, Zhang Y, Zhelezov A, Zhong L, Zverev E, and Zvyagin A
Abstract: The relative abundance of the three decay modes B(0)→D(-)K(+), B(0)→D(-)π(+), and B(s)(0)→D(s)(-)π(+) produced in 7 TeV pp collisions at the LHC is determined from data corresponding to an integrated luminosity of 35 pb(-1). The branching fraction of B(0)→D(-)K(+) is found to be B(B(0)→D(-)K(+)) = (2.01 ± 0.18(stat) ± 0.14(syst)) × 10(-4). The ratio of fragmentation fractions f(s)/f(d) is determined through the relative abundance of B(s)(0)→D(s)(-)π(+) to B(0)→D(-)K(+) and B(0)→D(-)π(+), leading to f(s)/f(d) = 0.253 ± 0.017 ± 0.017 ± 0.020, where the uncertainties are statistical, systematic, and theoretical, respectively.
Published: 2011
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26. Density fluctuations and entropy

Author: Hernando JA and Blum L
Abstract: A functional for the entropy that is asymptotically correct both in the high- and low-density limits is proposed. The new form is S=S((id))+S((ln))+S((r))+S((c)), where the term S((c)) depends on the p-body density fluctuations alpha(p) and has the form S((c))/k=ln 2-1+ summation operator(infinity)(p=2) (ln 2)(p)/p! alpha(p)-[exp(alpha(2)-1)-alpha(2)]+Sinsertion mark. Sinsertion mark renormalizes the ring approximation S((r)). This result is obtained by analyzing the functional dependence of the most general expression of the entropy. Two main results for S((c)) are proved: (i) In the thermodynamic limit it is only a functional of the one-body distribution function and (ii) by summing to infinite order the leading contributions in the density a numerical expression for the entropy [Eq. (33)] with a renormalized ring approximation is obtained. The relation of these results to the incompressible approximation for the entropy is discussed and preliminary numerical results on hard spheres are presented.
Published: 2000
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27. Multipolar electrostatic sums in numerical simulations with wall boundary conditions.

Author: Hernando JA
Published: 1991
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28. Intermittency, ergodicity, and spectral analysis in classical Hamiltonian dynamics.

Author: Stolovitzky G and Hernando JA
Published: 1991
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29. Attractive and repulsive interactions in a two-dimensional billiardlike system: The Lennard-Jones stadium.

Author: Stolovitzky G and Hernando JA
Published: 1990
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30. Resonant structure of integrable and near-integrable two-dimensional systems.

Author: Stolovitzky G and Hernando JA
Published: 1990
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31. Exact and approximate expressions for the three-particle direct correlation function and some related functions.

Author: Hernando JA
Published: 1986
Full Text: View/download PDF

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31 results on '"Hernando, Ja"'

1. Análisis de las notas de prensa institucionales y su visibilidad en la prensa

2. LHCb potential to measure/exclure the branching ratio of the decay $Bs \to \mu^{+}\mu^{-}$

3. b-tagging in DELPHI at LEP (vol 32, pg 185, 2004)

4. Erratum: b-tagging in DELPHI at LEP (European Physical Journal C (2004) 32 (185-208) DOI 10.1140/epjc/s2003-01441-8)

5. PRODUCTION OF CHARGED-PARTICLES, K-S(0),K+/-, P AND LAMBDA IN Z-]B(B)OVER-BAR EVENTS AND IN THE DECAY OF B-HADRONS

6. FIRST EVIDENCE OF HARD SCATTERING PROCESSES IN SINGLE TAGGED GAMMA-GAMMA-COLLISIONS

7. A study of radiative muon-pair events at Z(0) energies and limits on an additional Z' gauge boson

8. OBSERVATION OF ORBITALLY EXCITED B-MESONS

9. SEARCH FOR PAIR-PRODUCED HEAVY SCALARS IN Z(0) DECAYS

10. INTERFERENCE OF NEUTRAL KAONS IN THE HADRONIC DECAYS OF THE Z(0)

11. IMPROVED MEASUREMENTS OF CROSS-SECTIONS AND ASYMMETRIES AT THE Z(0) RESONANCE

12. Measurement of the B-0-(b)over-bar-0 Mixing Parameter In Delphi

13. MEASUREMENT OF TIME-DEPENDENT B-D(0) (B)OVER-BAR-D(0) MIXING

14. MEASUREMENT OF THE B0-(B0)OVER-BAR MIXING USING THE AVERAGE ELECTRIC CHARGE OF HADRON-JETS IN Z0-DECAYS

15. A MEASUREMENT OF THE B(S)0 MESON MASS

16. MEASUREMENT OF THE B0-(B0)OVER-BAR MIXING USING THE AVERAGE ELECTRIC CHARGE OF HADRON-JETS IN Z0-DECAYS

17. MEASUREMENT OF THE E+E- -] GAMMA-GAMMA(GAMMA) CROSS-SECTION AT LEP ENERGIES

18. MEASUREMENT OF THE B-0-(B)OVER-BAR-0 MIXING PARAMETER IN DELPHI

19. MEASUREMENTS OF THE LINESHAPE OF THE Z(0) AND DETERMINATION OF ELECTROWEAK PARAMETERS FROM ITS HADRONIC AND LEPTONIC DECAYS

20. J/PSI-PRODUCTION IN THE HADRONIC DECAYS OF THE Z

21. SEARCH FOR THE STANDARD MODEL HIGGS-BOSON IN Z(0) DECAYS

22. MEASUREMENT OF GAMMA(B(B)OVER-BAR)/GAMMA(HAD) USING IMPACT PARAMETER MEASUREMENTS AND LEPTON IDENTIFICATION

23. LHCb calorimeters : Technical Design Report

24. Morphological development in the first life phase of Adriatic sturgeon Acipenser naccarii under controlled conditions.

25. Determination of f(s)/f(d) for 7 TeV pp collisions and measurement of the B0→D-K+ branching fraction.

26. Density fluctuations and entropy

27. Multipolar electrostatic sums in numerical simulations with wall boundary conditions.

28. Intermittency, ergodicity, and spectral analysis in classical Hamiltonian dynamics.

29. Attractive and repulsive interactions in a two-dimensional billiardlike system: The Lennard-Jones stadium.

30. Resonant structure of integrable and near-integrable two-dimensional systems.

31. Exact and approximate expressions for the three-particle direct correlation function and some related functions.

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31 results on '"Hernando, Ja"'

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