Author: "G. ORAZI" / Journal: physics letters b - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"G. ORAZI"' showing total 22 results

Start Over Author "G. ORAZI" Journal physics letters b

22 results on '"G. ORAZI"'

1. Measurement of V from the decay process →Dℓ

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W.-D. Apel, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M.-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J.-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J.-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S.-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J.-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J.-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M.-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Analytical chemistry, Form factor (quantum field theory), 01 natural sciences, Pion, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Bar (unit)
Abstract: A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}, selected by the DELPHI detector at LEP I by tagging the soft pion from D^{*+} -> D^0 \pi^+. The results are: V_{cb}=(39.0 +/- 1.5 (stat.) ^{+2.5}_{-2.6} (syst. exp.) +/- 1.3 (syst. th.)) x 10^{-3} BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell})=(4.70 +/- 0.13 (stat.) ^{+0.36}_{-0.31} (syst. exp.))% The analytic dependences of the differential cross-section and of the Isgur Wise form factor as functions of the variable w = v_{B^0}.v_{D^*} have also been obtained by unfolding the experimental resolution.
Published: 2001
Full Text: View/download PDF

2. Search for R-parity violation with a coupling at GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W.-D. Apel, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M.-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J.-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J.-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S.-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J.-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J.-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, L.M. Mundim, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M.-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Coupling (probability), 01 natural sciences, 7. Clean energy, Standard Model, Chargino, Pair production, R-parity, 0103 physical sciences, Neutralino, High Energy Physics::Experiment, 010306 general physics, Energy (signal processing), Lepton
Abstract: Searches for pair production of gauginos and squarks in e+e- collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158 pb^{-1} collected by the DELPHI detector at LEP. The data were analyzed under the assumption of non-conservation of R-parity through a single dominant Ubar Dbar Dbar coupling between squarks and quarks. Typical final states contain between 4 and 10 jets with or without additional leptons. No excess of data above Standard Model expectations was observed. The results were used to constrain domains of the MSSM parameter space and derive limits on the masses of supersymmetric particles. The following mass limits at 95% CL were obtained from these searches: neutralino mass: m_{\tilde{\chi^0_{1}}} \geq 32 GeV chargino mass: m_{\tilde{\chi^+_{1}}} \geq 94 GeV stop and sbottom mass (indirect decay) with \Delta M > 5 GeV: m_{\tilde{t_1}} \geq 74 GeV, for \Phi_{mix}=0 rad m_{\tilde{t_1}} \geq 59 GeV, for \Phi_{mix}=0.98 rad m_{\tilde{b_1}} \geq 72 GeV, for \Phi_{mix}=0 rad. The angle \phi_{mix} is the mixing angle between left and right handed quarks.
Published: 2001
Full Text: View/download PDF

3. Upper limit for the decay and measurement of the branching ratio

Author: D. Bertrand, Jiri Chudoba, N. Benekos, Patrick Jarry, G. Rinaudo, Z. Krumstein, E. Cortina, J. Salt, Rupert Leitner, M. Battaglia, G. Matthiae, E. Kriznic, Ch. Royon, P. Kubinec, O. Klapp, Clara Troncon, S. Paiano, A. De Min, D. Moraes, L. Bugge, R. Janik, S. Crepe, Juergen Thomas, N. I. Zimin, I. Ripp-Baudot, E. K. Johansson, Borge Svane Nielsen, A. Maio, F. Carena, G. Sajot, U. Flagmeyer, N. Tinti, Krzysztof Doroba, Chiara Meroni, A. Tonazzo, H. Palka, W. Da Silva, W. A. Mitaroff, V. Malychev, S. Cabrera, V. Ruhlmann-Kleider, H. Foeth, Ph. Charpentier, A. G. Frodesen, M. S. Bilenky, J. W. Lamsa, C. Gaspar, Ugo Amaldi, M. Bonesini, Natale Demaria, U. Mueller, M. A. Bizouard, A. Passeri, L.J. Carroll, K. Muenich, Louis Lyons, Fabio Cossutti, F. J. Harris, F. Terranova, F. Richard, B. De Lotto, G. Crosetti, Evgueni Vlasov, P. Chochula, P. Negri, G. C. Zucchelli, Oxana Smirnova, Jelena Krstic, I. Gonzalez Caballero, W. De Boer, E. Zevgolatakos, A. W. Borgland, H. M. Blom, Y. Sacquin, Kathy Huet, P. Jonsson, Valeriy Pozdniakov, R. Alemany, P. Bruckman, F. Barao, Anna Lipniacka, E. I. Rosenberg, W. Van Doninck, A. De Angelis, K. Karafasoulis, Igor Boyko, T. Lesiak, S. Almehed, S. Fichet, M. Tobin, P. B. Renton, A. C. Taffard, P. Collins, S. Tzamarias, E. Higon, Giovanni Valenti, R. Chierici, F. Hahn, C. Matteuzzi, M. Nassiakou, O.M. Kouznetsov, V. Lepeltier, M. Pernicka, J. Fayot, Jesus Marco, G. Lenzen, R. Strub, F. Martinez-Vidal, G. Borisov, V. Kostioukhine, M. Siebel, Paolo Checchia, S. Gamblin, B. Schwering, B. Marechal, Richard Brenner, M. L. Turluer, F. Simonetto, D. Reid, E. C. Katsoufis, E. Boudinov, F. Scuri, Rosy Nicolaidou, G. Orazi, G. A. Chelkov, Ph. Gavillet, J-C. Marin, Daniel Bloch, J. E. Augustin, D. Wicke, A. Kinvig, G. Leder, E. Ferrer-Ribas, J. D. Durand, A. G. Olshevski, U. Schwickerath, Ahmimed Ouraou, Marta Calvi, R. Paiva, M. Gaspar, Vincenzo Canale, Geoffrey Smith, Klaus Hamacher, N. Neufeld, G. Mc Pherson, H. Herr, L. G. Tkatchev, P. V. Chliapnikov, B. Åsman, S. Haider, M. Feindt, S. Sánchez Navas, W. Liebig, Tord Ekelof, T. Alderweireld, P. Verdier, P. Niezurawski, J. MacNaughton, Gianni Zumerle, V. Lefebure, R. Gokieli, A. Nygren, M. Berggren, A. N. Sisakian, A. Sadovsky, Gunter Wolf, Demetrios Loukas, L. Di Ciaccio, L. Ventura, G. Grosdidier, A. Malek, A. Sokolov, S. Todorova, D. Crennell, F. Mandl, C. Caso, S. Heising, Claire Bourdarios, V. Chorowicz, P. Poropat, G. Smadja, A. Pullia, R. Muresan, P. Andersson, Andre Augustinus, Flavio Fontanelli, Wolfgang Adam, Alessandra Romero, A. Ruiz, Piotr Zalewski, Sofia Andringa, P. Tyapkin, S. Hoorelbeke, B. Loerstad, Paolo Morettini, Dimos Sampsonidis, J. Drees, Göran Jarlskog, Phillip Allport, K. Cieslik, C. Joram, Paolo Ronchese, Maria Roberta Monge, Christine Kourkoumelis, M. Baubillier, Achille Stocchi, J. M. Heuser, T. Podobnik, H. B. Crawley, G. Della Ricca, N. Pukhaeva, Ugo Gasparini, Yu. Belokopytov, N. J. Kjaer, Christian Weiser, A. Onofre, J. G. Loken, D. Fassouliotis, Andrea Perrotta, T. Tabarelli, B. Tome, P. Rebecchi, Th. D. Papadopoulou, Ch. Jarlskog, A. Zalewska, F. Glege, Jørgen Beck Hansen, Alexander Vodopyanov, G. Morton, E. G. Anassontzis, V.A. Uvarov, M. Mazzucato, P. Beilliere, Ph. Schwemling, O. Yushchenko, Evangelos Gazis, W. D. Apel, J. P. Engel, S. Stanic, M. V. Castillo Gimenez, H. Rahmani, I. Lippi, F. Pierre, Ariella Cattai, W. T. Meyer, Guillelmo Gomez-Ceballos, R. Sekulin, Manfred Krammer, R. Barbier, J. H. Wickens, V. Verzi, M. Bracko, B. Muryn, Marco Paganoni, V. Nomokonov, Oliver Passon, P. Goncalves, J. Van Eldik, F. Fulda-Quenzer, F. Ledroit, J. Fuster, G. Vegni, I. Bozovic, M. Stanitzki, Alessandro Petrolini, Dietrich Liko, P. Privitera, O. Ullaland, Gareth J. Barker, A. Miagkov, G. Tristram, B.P. Kersevan, Vincent Hedberg, Daniel Jeans, V. Gracco, E. Graziani, V. Obraztsov, M. Dracos, D. W. Lane, M. Davenport, C. Haag, N. Van Remortel, J. M. Brunet, T. Moa, L.N. Gerdyukov, Krzysztof Nawrocki, W. Van den Boeck, J. N. Jackson, Chariclia Petridou, Christopher Parkes, A. J. Washbrook, J. Cuevas Maestro, F. Tegenfeldt, R. Lauhakangas, R. Mc Nulty, L. Vitale, Guido Barbiellini, J. Rames, R. Sosnowski, F. Naraghi, P. Rosinsky, Klaus Moenig, Fabrizio Parodi, Cristian Stanescu, P. Branchini, Antonios Leisos, D. Radojicic, P. Kokkinias, I. van Vulpen, Matteo Pegoraro, G. Ekspong, B. Jean-Marie, M. A. Houlden, S. Marti i Garcia, P. Gris, Georgios Fanourakis, T. Buran, Markus Elsing, B. Franek, Amiran Tomaradze, R. Moeller, Daniel Treille, M. Bigi, P. Abreu, P. Van Dam, X. Moreau, Laurent Mirabito, D. Gele, J. Guy, Attilio Andreazza, K. Stevenson, I. A. Tyapkin, P. Lutz, J. Ridky, P. N. Ratoff, A. Markou, A. Galloni, Corinne Berat, L. K. Resvanis, J. H. Lopes, U. Parzefall, A. Firestone, S. O. Holmgren, Nikita Smirnov, Tiziano Rovelli, Olga Botner, G. Transtromer, A. Kiiskinen, I. V. Ajinenko, L. S. Vertogradov, Tim Adye, C. Bosio, Sandra Amato, M. Nikolenko, B. Buschbeck, B. Golob, Mattias Ellert, Carmen García, Reynald Pain, Massimo Caccia, S. Squarcia, A. Behrmann, H. Saarikko, Tiziano Camporesi, G. Cosme, S. Maltezos, Luca Tortora, T. Myklebust, P. Herquet, L. Simard, M. Begalli, P. J. Holt, Vaclav Vrba, R. Contri, N. G. Redaelli, Hans Dijkstra, Marco Bozzo, Pawel Jalocha, Barry King, Marc Winter, C. Mulet-Marquis, T. J. V. Bowcock, Petar Adzic, P. Juillot, L. Leinonen, E. Spiriti, Jiri Masik, R. Lopez-Fernandez, Ph. Zoller, M. Huber, C. Walck, Nikolaos P. Mastroyiannopoulos, G. D. Alekseev, R. Reinhardt, Nicola Amapane, T. L. Hessing, R. Frühwirth, N. Seibert, J. Timmermans, Luc Pape, Josef Strauss, J. Kurowska, R. C. Shellard, Josef Hrubec, V. Chabaud, G. J. Hughes, M. Espirito Santo, W. Venus, Chiara Mariotti, J. J. Hernandez, D. Zavrtanik, P. Delpierre, S. Hahn, R. Orava, G. Myatt, Manolis Dris, T. G M Malmgren, Mario Sannino, H. Wahlen, Francesca Romana Cavallo, I. Gil, Y. Arnoud, M. Moch, P. Roudeau, T. Geralis, V. V. Lapin, K. Grzelak, C. De Clercq, A. M. Segar, G. Eigen, W. J. Murray, M. Mc Cubbin, Z. Albrecht, Allan Hallgren, B. Bouquet, Antonio Baroncelli, Alberto Benvenuti, Fabrizio Ferro, Rafael Marco, J. Dolbeau, P. Bambade, P.S.L. Booth, L. Jungermann, K. H. Becks, E. Vallazza, J. Palacios, Arnaud Duperrin, D. Vilanova, P. Buschmann, R. Mc Kay, Stefano Ragazzi, E. Piotto, J. Grahl, Morgan Lethuillier, Maria Elena Pol, S. Katsanevas, A. Sopczak, D. Y. Bardin, R. Keranen, Francisco Matorras, C. Martinez-Rivero, A. Ferrer, Yu. Sedykh, Martijn Mulders, P. Antilogus, J. Rehn, Martino Margoni, E. Fokitis, Peter Kluit, F. Mazzucato, J. Libby, Ole Røhne, M. Pimenta, B. A. Khomenko, Francesco Navarria, Pablo Tortosa, A. Zintchenko, K. Hultqvist, L. Gorn, U. Mjoernmark, H. T. Phillips, P. Seager, N. Ghodbane, N. N. Khovanski, J. P. Laugier, M. Verlato, R. Jacobsson, J. Yi, A. Van Lysebetten, Sandor Czellar, G. Polok, Yu. Gouz, Ernesto Migliore, G. Kernel, T. Allmendinger, G. Wilkinson, J. M. Lopez, K. Kurvinen, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, Marc Besancon, Luis Peralta, F. Kapusta, Marek Szczekowski, H. Klein, K. Osterberg, T. Pavel, J.R. Mahon, G. Gopal, Maarten Boonekamp, L. De Paula, M. Trochimczuk, T. Spassov, D. Gamba, M. Witek, G. Voulgaris, F. Verbeure, B. Stugu, and M. Gandelman
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Computer Science::Digital Libraries, 01 natural sciences, Standard Model, Nuclear physics, 0103 physical sciences, Computer Science::Mathematical Software, Higgs boson, High Energy Physics::Experiment, B meson, 010306 general physics, Lepton
Abstract: The branching ratio for the leptonic decay of charged B mesons View the MathML source has been measured using selected leptonic View the MathML source and hadronic τ−→ντX decays in View the MathML source decays recorded by DELPHI at LEP1 in 1992–1995. The result, View the MathML source at the 90% confidence level, is consistent with standard model expectations and puts a constraint on the ratio tanβ/MH±
Published: 2000
Full Text: View/download PDF

4. Determination of the e+e−→γγ(γ) cross-section at centre-of-mass energies ranging from 189 GeV to 202 GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W.-D. Apel, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M.-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J.-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J.-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, Z. Hajduk, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S.-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, W. Kucewicz, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J.-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J.-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, L.M. Mundim, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, A. Oblakowska Mucha, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M.-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Graviton, Lambda, 01 natural sciences, Upper and lower bounds, Gamma gamma, Cross section (geometry), Excited state, 0103 physical sciences, High Energy Physics::Experiment, Mass scale, 010306 general physics
Abstract: A test of the QED process e+e- -> gamma gamma (gamma) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest energies achieved at LEP, reaching 202 GeV in the centre-of-mass. The total integrated luminosity amounts to 375.7 pb^{-1}. The differential and total cross-sections for the process e+e- -> gamma gamma were measured, and found to be in agreement with the QED prediction. 95% Confidence Level (C.L.) lower limits on the QED cut-off parameters of Lambda+ > 330 GeV and Lambda- > 320 GeV were derived. A 95% C.L. lower bound on the mass of an excited electron of 311 GeV/c^2 (for lambda_gamma = 1) was obtained. s-channel virtual graviton exchange was searched for, resulting in 95% C.L. lower limits on the string mass scale, M_S: M_S > 713 GeV/c^2 (lambda = 1) and M_S > 691 GeV/c^2 (lambda = -1).
Published: 2000
Full Text: View/download PDF

5. Rapidity-rank structure of pairs in hadronic Z0 decays

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Hadron, Structure (category theory), Rank (differential topology), 01 natural sciences, Baryon, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics
Abstract: The rapidity-rank structure of p pbar pairs is used to analyze the mechanism of baryon production in hadronic Z0 decay. The relative occurrence of the rapidity-ordered configuration p M pbar, where M is a meson, and that of p pbar adjacent pairs is compared. The data are found to be consistent with predictions from a mechanism producing adjacent-rank p pbar pairs, without requiring `string-ordered' p M pbar configurations. An upper limit of 15% at 90% confidence is determined for the p M pbar contribution.
Published: 2000
Full Text: View/download PDF

6. Limits on the masses of supersymmetric particles at GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, L.M. Mundim, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, O. Tchikilev, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan
Subjects: Physics, Nuclear and High Energy Physics, Selectron tube, Particle physics, Chargino, 010308 nuclear & particles physics, 0103 physical sciences, Neutralino, 010306 general physics, 01 natural sciences, Lightest Supersymmetric Particle
Abstract: Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and other supersymmetric particles within the MSSM framework. R-parity conservation has been assumed. The lightest neutralino was found to be heavier than 32.3 GeV/c^2 independent of the m_0 value. The lightest chargino, the second-to-lightest neutralino, the next-to-heaviest neutralino, the heaviest neutralino, the sneutrino and the right-handed selectron were found to be heavier than 62.4 GeV/c^2, 62.4 GeV/c^2, 99.9 GeV/c^2, 116.0 GeV/c^2, 61.0 GeV/c^2, and 87.0 GeV/c^2, respectively. These limits do not depend on m_0 or M_2 and are valid for 1 \leq tan(beta) \leq 40, in the mu region where the lightest neutralino is the LSP. If the sneutrino is heavier than the chargino the lightest neutralino has to be heavier than 32.4 GeV/c^2. The effects of mixings in the third family of sfermions on these limits are discussed. The confidence level of all limits given is 95%.
Published: 2000
Full Text: View/download PDF

7. Search for SUSY with R-parity violating couplings at GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, L.M. Mundim, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Scalar (mathematics), Supersymmetry, Lambda, 01 natural sciences, Standard Model, Pair production, R-parity, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Energy (signal processing), Lepton
Abstract: Searches for pair production of supersymmetric particles under the assumption that R-parity is not conserved are presented, based on data recorded by the DELPHI detector in 1998 from e+e- collisions at a centre-of-mass energy of 189 GeV. Only one R-parity violating LL\bar{E} term (i.e. one lambda coupling), which couples scalar leptons to leptons, is considered to be dominant at a time. Moreover, it is assumed that the strength of the R-parity violating couplings is such that the lifetimes can be neglected. The search for pair production of neutralinos, charginos and sleptons has been performed for both direct R-parity violating decays and indirect cascade decays. The results are in agreement with Standard Model expectations, and are used to update the constraints on the MSSM parameter values and the mass limits previously derived at sqrt(s) = 183 GeV. The present 95% C.L. limits on supersymmetric particle masses are: m_{\tilde{\chi}^0} > 30 GeV/c^2 and m_{\tilde{\chi}^\pm} > 94 GeV/c^2; m_{\tilde{\nu}} > 76.5 GeV/c^2 (direct and indirect decays); m_{\tilde{\ell}_R} > 83 GeV/c^2 (indirect decay only).
Published: 2000
Full Text: View/download PDF

8. Determination of |Vub|/|Vcb| with DELPHI at LEP

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, A. Sokolov, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, G. Zumerle, UCL - SST/IRMP - Institut de recherche en mathématique et physique, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, and Vitale, Lorenzo
Subjects: Nuclear and High Energy Physics, Particle physics, Meson, Hadron, FOS: Physical sciences, 01 natural sciences, Partícules (Física nuclear), High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Nuclear Experiment, 010306 general physics, DELPHI, Physics, Energy distribution, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Rest frame, LARGE ELECTRON POSITRON COLLIDER, PARTICLE PHYSICS, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract: The ratio of the CKM quark-mixing matrix elements |Vub|/|Vcb| has been measured using B hadron semileptonic decays. The analysis uses the reconstructed mass M_X of the secondary hadronic system produced in association with an identified lepton. Since B -> X_u lepton anti-nu transitions are characterised by hadronic masses below those of the D mesons produced in B -> X_c lepton anti-nu transitions, events with a reconstructed value of M_X significantly below the D mass are selected. Further signal enrichments are obtained using the topology of reconstructed decays and hadron identification. A fit to the numbers of decays in the b -> u enriched and depleted samples with M_X above and below 1.6 GeV/c^2 and to the shapes of the lepton energy distribution in the B rest frame gives |Vub|/|Vcb|= 0.103^{+0.011}_{-0.012} (stat.) +/- 0.016 (syst.) +/- 0.010 (model) and, correspondingly, a charmless semileptonic B decay branching fraction of BR(B -> X_u lepton anti-nu) = (1.57 +/- 0.35 (stat.) +/- 0.48 (syst.) +/- 0.27 (model)) x 10^{-3}., 24 pages, 8 figures
Published: 2000
Full Text: View/download PDF

9. Search for heavy stable and long-lived particles in e+e− collisions at GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Time projection chamber, 010308 nuclear & particles physics, Detector, 01 natural sciences, Ring-imaging Cherenkov detector, Charged particle, Ionization, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Cherenkov radiation
Abstract: A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging Cherenkov Detector and the ionisation loss measured in the Time Projection Chamber were used to identify heavy particles passing through the detector. No evidence for the production of such particles has been found, therefore exclusion limits at 95% confidence level were derived on the masses of left and right handed smuons and staus. The results were combined with previous DELPHI searches in this channel. Including previous DELPHI results, masses of left (right) handed stable smuons and staus can be excluded between 2 GeV/c^2 and 88 (87.5) GeV/c^2 at 95% CL.
Published: 2000
Full Text: View/download PDF

10. Search for charginos in e+e− interactions at GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, O. Tchikilev, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Chargino, 010308 nuclear & particles physics, 0103 physical sciences, Neutralino, Gravitino, 010306 general physics, 01 natural sciences, Resonance (particle physics), Energy (signal processing)
Abstract: An update of the searches for charginos and gravitinos is presented, based on a data sample corresponding to the 158 pb^{-1} recorded by the DELPHI detector in 1998, at a centre-of-mass energy of 189 GeV. No evidence for a signal was found. The lower mass limits are 4-5 GeV/c^2 higher than those obtained at a centre-of-mass energy of 183 GeV. The (\mu,M_2) MSSM domain excluded by combining the chargino searches with neutralino searches at the Z resonance implies a limit on the mass of the lightest neutralino which, for a heavy sneutrino, is constrained to be above 31.0 GeV/c^2 for tan(beta) \geq 1.
Published: 2000
Full Text: View/download PDF

11. Measurement of the branching fraction

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertini, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, W. Bonivento, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, Ph. Charpentier, L. Chaussard, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, P. Ferrari, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, 01 natural sciences, Crystallography, Pion, 0103 physical sciences, Pi, High Energy Physics::Experiment, B meson, Impact parameter, Neutrino, 010306 general physics, Lepton
Abstract: A study of b semileptonic decays into D, D pi+- and D* pi+- final states is presented. The D0, D+ and D*+ mesons are exclusively reconstructed in Z decay data recorded from 1992 to 1995 in the DELPHI experiment at LEP. The overall branching fractions are measured to be: BR(b -> D^0 \ell^- \bar{\nu}_{\ell} X) = (7.04 +/- 0.34 (stat) +/- 0.36 (syst.exp) +/- 0.17 (BR_D))% BR(b -> D^+ \ell^- \bar{\nu}_{\ell} X) = (2.72 +/- 0.19 (stat) +/- 0.16 (syst.exp) +/- 0.18 (BR_D))% BR(b -> D^{*+} \ell^- \bar{\nu}_{\ell} X) = (2.75 +/- 0.17 (stat) +/- 0.13 (syst.exp) +/- 0.09 (BR_D))% where the D0 and D+ results include also contributions from D*0 and D*+ decays. A fit to the distribution of the pi+- impact parameter to the primary interaction vertex provides a measurement of the b semileptonic branching fractions into the D0 pi+- X, D+ pi+- X and D*+ pi+- X final states. Assuming that single pion decay modes of B mesons dominate, the partial rates for \bar{B} -> D \pi \ell^- \bar{\nu_{\ell}} and \bar{B} -> D^{*} \pi \ell^- \bar{\nu_{\ell}} have been obtained, corresponding to a total branching fraction: BR(\bar{B} -> D \pi \ell^- \bar{\nu_{\ell}}) + BR(\bar{B} -> D^{*} \pi \ell^- \bar{\nu_{\ell}}) = (3.40 +/- 0.52 (stat) +/- 0.32 (syst))% . This result agrees well with the observed difference between the total B semileptonic branching fraction and the sum of the \bar{B} -> D \ell^- \bar{\nu_{\ell}} and D^* \ell^- \bar{\nu_{\ell}} branching fractions.
Published: 2000
Full Text: View/download PDF

12. Λb polarization in Z0 decays at LEP

Author: P. Privitera, Chariclia Petridou, W. Liebig, Marc Winter, Nikolaos P. Mastroyiannopoulos, Tord Ekelof, T. G M Malmgren, G. Wilkinson, H. Wahlen, J. M. Lopez, J. H. Lopes, U. Parzefall, A. Firestone, D. Fassouliotis, Daniel Treille, M. Bigi, J. Ridky, F. Pierre, B. Loerstad, Vincent Hedberg, D. W. Lane, A. N. Sisakian, E. Boudinov, G. Ekspong, K. Stevenson, P. N. Ratoff, Mattias Ellert, M. Begalli, M. A. Bizouard, N. Tinti, K. Muenich, T. Tabarelli, Louis Lyons, Giovanni Valenti, G. A. Chelkov, Demetrios Loukas, A. Sadovsky, K. H. Becks, E. Vallazza, Paolo Morettini, J. G. Loken, Piotr Zalewski, Z. Krumstein, S. Paiano, A. De Min, K. Kurvinen, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, Marc Besancon, Konstantinos Papageorgiou, C. Mulet-Marquis, P. Beilliere, H. Rahmani, Manfred Krammer, G. Sajot, U. Flagmeyer, J-C. Marin, Nikita Smirnov, M. Verlato, Krzysztof Nawrocki, Luca Tortora, T. Myklebust, P. Herquet, Oliver Passon, R. Contri, A. Miagkov, Ariella Cattai, J. Van Eldik, F. Ledroit, J. Fuster, M. Moch, O. Tchikilev, Anna Lipniacka, V.A. Uvarov, Natale Demaria, M. Tobin, Christian Weiser, A. Petrolini, B. De Lotto, G. Crosetti, Evgueni Vlasov, U. Mjoernmark, P. Van Dam, Nicola Amapane, R. Jacobsson, S. Todorova, Matteo Pegoraro, A. G. Frodesen, T. J. V. Bowcock, M. S. Bilenky, O. Ullaland, M. Feindt, S. Sánchez Navas, T. L. Hessing, P. Buschmann, R. Mc Kay, A. Andreazza, K. Grzelak, Allan Hallgren, Manolis Dris, M. Davenport, N. Neufeld, G. Grosdidier, Alessandra Romero, C. Bosio, P. Negri, C. Joram, A. Ruiz, H. T. Phillips, A. J. Washbrook, P. B. Renton, M. Baubillier, Achille Stocchi, L.J. Carroll, Jørgen Beck Hansen, F. Fulda-Quenzer, Alexander Vodopyanov, J. N. Jackson, P. Roudeau, J. Yi, Tiziano Camporesi, Antonio Baroncelli, S. Tzamarias, N. I. Zimin, Patrick Jarry, Göran Jarlskog, J. Grahl, G. Rinaudo, A. Behrmann, J. Salt, Alberto Benvenuti, L. Di Ciaccio, Wolfgang Adam, R. Keranen, J. Rames, P. Kokkinias, B. Franek, E. Graziani, Borut Paul Kerševan, Maria Elena Pol, A. C. Taffard, Fabrizio Ferro, B. Marechal, E. C. Katsoufis, Rosy Nicolaidou, J. M. Brunet, H. Foeth, G. Mc Pherson, Fabio Cossutti, H. Herr, L. G. Tkatchev, I. Gonzalez Caballero, J. J. Hernandez, H. M. Blom, Ch. Jarlskog, Christophe Royon, S. Hoorelbeke, F. Glege, W. D. Apel, Z. Albrecht, Philippe Charpentier, Francisco Matorras, Paolo Ronchese, A. Onofre, S. Katsanevas, A. Sopczak, M. Huber, Marta Calvi, P. Seager, Josef Strauss, D. Y. Bardin, V. Chabaud, Luis Peralta, F. Kapusta, Vincenzo Canale, Geoffrey Smith, Pawel Jalocha, Barry King, A. Galloni, S. O. Holmgren, E. Spiriti, Jiri Masik, Ph. Zoller, R. Frühwirth, N. Seibert, J. Timmermans, W. Venus, L. S. Vertogradov, N. J. Kjaer, Yu. Belokopytov, M. Espirito Santo, Igor Boyko, Y. Sacquin, T. Lesiak, R. Barbier, J. E. Augustin, R. Paiva, A. Nygren, M. Berggren, R. Lopez-Fernandez, R. C. Shellard, Josef Hrubec, A. De Angelis, P. Collins, G. Borisov, Daniel Bloch, G. Cosme, P. Delpierre, U. Mueller, F. Carena, N. Ghodbane, J. D. Durand, P. Antilogus, J. Rehn, P. V. Chliapnikov, P. Abreu, D. Gele, G. Vegni, P. Bruckman, E. Kriznic, Ahmimed Ouraou, Kathy Huet, P. Jonsson, Valeriy Pozdniakov, A. Van Lysebetten, Sandor Czellar, G. Polok, Yu. Gouz, Ernesto Migliore, I. Bozovic, N. Van Remortel, A. G. Olshevski, R. Sosnowski, S. Haider, G. Myatt, A. M. Segar, F. Simonetto, G. Leder, P. Ferrari, J. Cuevas Maestro, M. Gaspar, P. J. Holt, N. G. Redaelli, Marco Bozzo, B. Åsman, L. Ventura, F. Naraghi, P. Andersson, Klaus Hamacher, N. N. Khovanski, M. Regler, C. Martinez-Rivero, W. Bonivento, G. Orazi, Ugo Gasparini, G. Tristram, E. I. Rosenberg, U. Schwickerath, S. Gamblin, Danilo Zavrtanik, Gareth J. Barker, Rupert Leitner, M. Battaglia, G. Matthiae, R. Gokieli, S. Heising, M. Pernicka, C. Caso, F. Fontanelli, V. Lefebure, R. Muresan, D. Crennell, F. Mandl, Vaclav Vrba, J. Palacios, Arnaud Duperrin, G. Smadja, Tiziano Rovelli, Hans Dijkstra, D. Wicke, D. Bertini, J. Fayot, Jesus Marco, G. Lenzen, P. Kubinec, Clara Troncon, Christine Kourkoumelis, A. Kiiskinen, R. Strub, Sofia Andringa, A. Pullia, Maria Roberta Monge, A. Maio, S. Cabrera, C. Gaspar, A. Zalewska, F. Martinez-Vidal, V. Kostioukhine, Dimos Sampsonidis, A. Malek, G. Della Ricca, Oxana Smirnova, Yu. Sedykh, K. Cieslik, K. Karafasoulis, J. M. Heuser, T. Buran, Sandra Amato, W. T. Meyer, P. Rosinsky, R. Moeller, V. Nomokonov, T. Podobnik, O. Kouznetsov, I. van Vulpen, B. Tome, P. Rebecchi, Th. D. Papadopoulou, V. Ruhlmann-Kleider, B. Golob, H. Palka, A. B. Fenyuk, G. C. Zucchelli, Markus Elsing, J. W. Lamsa, Petar Adzic, H. B. Crawley, Guillelmo Gomez-Ceballos, E. Ferrer-Ribas, J. P. Laugier, B. Schwering, I. Lippi, M. L. Turluer, F. Barao, D. Reid, J. H. Wickens, B. Muryn, Marco Paganoni, S. Crepe, L. K. Resvanis, Massimo Caccia, S. Squarcia, H. Saarikko, J. Drees, M. Bracko, Laurent Mirabito, V. Lepeltier, M. Siebel, C. Parkes, E. Higon, Paolo Checchia, L. Simard, P. Juillot, F. J. Harris, F. Terranova, P. Niezurawski, Corinne Berat, Olga Botner, F. Scuri, W. Van den Boeck, Ph. Gavillet, Cristian Stanescu, P. Branchini, L. Vitale, Antonios Leisos, D. Radojicic, Gianni Zumerle, Georgios Fanourakis, C. Walck, R. Reinhardt, L. Leinonen, Gunter Wolf, Evangelos Gazis, X. Moreau, G. Transtromer, W. Da Silva, W. A. Mitaroff, Carmen García, J. MacNaughton, P. Lutz, V. Chorowicz, Luc Pape, Reynald Pain, J. Libby, Ole Røhne, J. Kurowska, M. Pimenta, P. Poropat, Guido Barbiellini, Andre Augustinus, Claire Bourdarios, Marek Szczekowski, D. Bertrand, Jiri Chudoba, Ph. Schwemling, O. Yushchenko, G. Morton, G. Kernel, R. Sekulin, F. Richard, M. Mazzucato, E. Cortina, P. Chochula, R. Alemany, M. Stanitzki, B. A. Khomenko, T. Moa, I. Ripp-Baudot, G. J. Hughes, H. Klein, J. Guy, Amiran Tomaradze, M. Dracos, A. Passeri, L. Chaussard, A. Markou, C. Matteuzzi, K. Osterberg, S. Almehed, S. Fichet, Chiara Mariotti, Francesco Navarria, Pablo Tortosa, A. Zintchenko, L. Bugge, R. Chierici, P. P. Allport, F. Hahn, M. Nassiakou, S. Hahn, Francesca Romana Cavallo, R. Orava, I. Gil, T. Pavel, Y. Arnoud, S. Stanic, V. V. Lapin, J.R. Mahon, C. De Clercq, W. J. Murray, G. Gopal, K. Hultqvist, G. Eigen, Maarten Boonekamp, L. De Paula, B. Bouquet, I. A. Tyapkin, R. Janik, Andrea Perrotta, M. Trochimczuk, M. Bonesini, T. Spassov, D. Gamba, Tim Adye, M. Witek, G. Voulgaris, F. Verbeure, E. G. Anassontzis, R. Mc Nulty, J. P. Engel, M. V. Castillo Gimenez, B. Jean-Marie, B. Stugu, I. V. Ajinenko, M. Nikolenko, B. Buschbeck, M. Gandelman, L. Gorn, J. Dolbeau, P. Bambade, P.S.L. Booth, Juergen Thomas, E. K. Johansson, L. Jungermann, S. Maltezos, G. D. Alekseev, N. Benekos, E. Piotto, V. Gracco, V. Malychev, R. Lauhakangas, Mario Sannino, O. Klapp, Klaus Moenig, Fabrizio Parodi, M. A. Houlden, S. Marti i Garcia, Borge Svane Nielsen, M. Mc Cubbin, Rafael Marco, Krzysztof Doroba, Chiara Meroni, A. Tonazzo, Peter Kluit, F. Mazzucato, D. Vilanova, Stefano Ragazzi, Morgan Lethuillier, A. Ferrer, Martijn Mulders, Martino Margoni, E. Fokitis, P. Goncalves, Daniel Jeans, V. Obraztsov, F. Tegenfeldt, P. Gris, Thomas Allmendinger, A. Kinvig, T. Alderweireld, N. Pukhaeva, V. Verzi, Ugo Amaldi, W. De Boer, E. Zevgolatakos, A. W. Borgland, Richard Brenner, and Dietrich Liko
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Astrophysics::Cosmology and Extragalactic Astrophysics, Lambda, Lambda baryon, 01 natural sciences, Nuclear physics, Baryon, 0103 physical sciences, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Neutrino, Nuclear Experiment, 010306 general physics, Lepton
Abstract: The longitudinal polarization of the Λb baryon is measured at the LEP e+e− collider by DELPHI. It is determined from the charged lepton and neutrino energy spectra in 249±19 Λb semileptonic decays reconstructed in ≈3.5 million hadronic Z0 decays using Λ0-lepton correlations. The measured polarization is: PΛb=−0.49−0.30+0.32(stat.)±0.17(syst.)
Published: 2000
Full Text: View/download PDF

13. Search for chargino pair production in scenarios with gravitino LSP and stau NLSP at GeV at LEP

Author: A. Deghorain, Natale Demaria, N. Tinti, R. Lauhakangas, L. Leinonen, M. Tobin, Piotr Zalewski, E. Higon, C. Martinez-Rivero, K. Muenich, P. Bruckman, E. Kriznic, G. Orazi, P. B. Renton, F. Scuri, Louis Lyons, Danilo Zavrtanik, Ugo Gasparini, A. C. Taffard, R. Gokieli, M. Feindt, I. Gonzalez Caballero, V.A. Uvarov, B. Marechal, T. Tabarelli, S. Sánchez Navas, R. Muresan, Sofia Andringa, O. Solovianov, Guido Barbiellini, J. Guy, P. Negri, P. Ferrari, Andrea Perrotta, Göran Jarlskog, O. Klapp, Rosy Nicolaidou, Marta Calvi, E. K. Johansson, Ch. Jarlskog, M. A. Bizouard, P. Niezurawski, Demetrios Loukas, F. Glege, W. D. Apel, Patrick Jarry, G. Rinaudo, S. Stanic, Borge Svane Nielsen, Geoffrey Smith, Tim Adye, Krzysztof Doroba, Chiara Meroni, G. Cosme, K. Stevenson, J. N. Jackson, G. Vegni, F. Carena, S. Cabrera, H. Rahmani, L. Jungermann, A. Tonazzo, M. Pernicka, Klaus Hamacher, X. Moreau, Jesus Marco, G. Lenzen, Oxana Smirnova, Luca Tortora, T. Myklebust, V. Kostioukhine, M. Koratzinos, J. Rames, R. Mc Nulty, J-C. Marin, I. Gil, S. Fichet, Ariella Cattai, Christophe Royon, S. Hoorelbeke, G. Grosdidier, B. Jean-Marie, Paolo Ronchese, V. Malychev, Gareth J. Barker, Peter Kluit, F. Mazzucato, Dietrich Liko, Chariclia Petridou, G. Valenti, P. Adzic, K. Karafasoulis, J. Libby, Ole Røhne, Rupert Leitner, M. Pimenta, G. Matthiae, F. Ledroit, D. Fassouliotis, A. N. Sisakian, P. Herquet, R. Contri, Nicola Amapane, U. Mueller, Stefano Ragazzi, F. Barao, O. Ullaland, B. Schwering, M. L. Turluer, D. Reid, N. J. Kjaer, M. A. Winter, Nektarios Benekos, A. Petrolini, Daniel Treille, M. Bigi, J. Fayot, J. Ridky, C. Vander Velde, Morgan Lethuillier, F. Pierre, B. A. Khomenko, E. I. Rosenberg, T. Buran, Markus Elsing, A. Sadovsky, A. Stocchi, Francesco Navarria, Pablo Tortosa, I. van Vulpen, J. M. Heuser, G. Smadja, Tiziano Camporesi, A. Zintchenko, P. J. Holt, Vincent Hedberg, D. W. Lane, Manolis Dris, B. De Lotto, P. Kubinec, Clara Troncon, S. Crepe, J. Van Eldik, P. Jalocha, Gianni Zumerle, G. Crosetti, Evgueni Vlasov, A. J. Washbrook, K. Kurvinen, S. Gamblin, N. G. Redaelli, G. Tristram, V. Chorowicz, Marco Bozzo, G. Ekspong, M. Davenport, D. Wicke, P. N. Ratoff, G. Mc Pherson, B. Franek, Attilio Andreazza, M. Nikolenko, V. Ruhlmann-Kleider, H. Herr, L. G. Tkatchev, L. Gorn, G. A. Chelkov, Ugo Amaldi, N. Ghodbane, J. Drees, C. Walck, R. Reinhardt, Alberto Benvenuti, Fabrizio Ferro, W. De Boer, E. Zevgolatakos, A. W. Borgland, E. Ferrer-Ribas, Manfred Krammer, Denis Gelé, P. Poropat, Andromachi Tsirou, Andre Augustinus, A. Nygren, M. Bracko, A. Tomaradze, Martijn Mulders, Mattias Ellert, M. Begalli, Martino Margoni, E. Fokitis, G. D. Alekseev, A. G. Frodesen, S. Tzamarias, N. I. Zimin, T. G M Malmgren, H. Wahlen, K. H. Becks, E. Vallazza, G. J. Hughes, D. Bertrand, Corinne Berat, Olga Botner, G. Transtromer, Carmen García, Ph. Schwemling, O. Yushchenko, Jiri Chudoba, Chiara Mariotti, Reynald Pain, Mario Sannino, I. Lippi, J. H. Lopes, U. Parzefall, A. Firestone, J. H. Wickens, Marco Paganoni, S. Hahn, W. Liebig, Tord Ekelof, R. Sekulin, Evangelos Gazis, L. Bugge, M. Stanitzki, J. J. Hernandez, T. Pavel, U. Mjoernmark, P. Buschmann, B. Muryn, M. Chapkin, Francesca Romana Cavallo, M. Mc Cubbin, Paulo J. S. Gonçalves, P. Van Dam, K. Hultqvist, Rafael Marco, L. Ventura, N. Neufeld, R. Mc Kay, Y. Arnoud, Vaclav Vrba, T. Moa, C. Mulet-Marquis, A. Duperrin, V. V. Lapin, A. Galloni, H. T. Phillips, Richard Brenner, Hans Dijkstra, J. Grahl, S. O. Holmgren, C. De Clercq, P. Delpierre, P. Andersson, B. Loerstad, P. V. Chliapnikov, A. Behrmann, P. Kokkinias, R. Janik, C. Gaspar, L. S. Vertogradov, C. Bosio, G. Kernel, W. J. Murray, A. Markou, A. Kinvig, Christian Weiser, A. Sopczak, D. Vilanova, L. Chaussard, L. Di Ciaccio, R. Strub, L. Vitale, R. Keranen, Guy Wilkinson, F. Martinez-Vidal, Antonios Leisos, D. Radojicic, Gunter Wolf, Georgios Fanourakis, Tiziano Rovelli, Philippe Charpentier, Francisco Matorras, Juergen Thomas, Barry King, P. Seager, G. Borisov, Borut Paul Kerševan, G. C. Zucchelli, V. Nomokonov, R. Lopez-Fernandez, R. C. Shellard, A. Passeri, Josef Hrubec, Christine Kourkoumelis, Wolfgang Adam, G. Myatt, M. Moch, E. Spiriti, T. Alderweireld, J. E. Augustin, R. Frühwirth, N. N. Khovanski, T. Spassov, A. M. Segar, K. Grzelak, M. Baubillier, Yu. Belokopytov, V. Canale, N. Seibert, V. Lepeltier, M. Siebel, J. Timmermans, Allan Hallgren, E. C. Katsoufis, G. Gopal, M. Huber, P. Lutz, Paolo Checchia, F. Fulda-Quenzer, F. Fontanelli, Antonio Baroncelli, Jørgen Beck Hansen, Oliver Passon, B. Tome, P. Antilogus, J. Rehn, Ph. Gavillet, A. M. Zaitsev, Alexander Vodopyanov, Luc Pape, Josef Strauss, J. Kurowska, J. Palacios, V. Chabaud, M. Espirito Santo, N. Pukhaeva, Maarten Boonekamp, E. Graziani, J. M. Brunet, H. Foeth, I. A. Tyapkin, R. Alemany, J. MacNaughton, L. De Paula, V. Verzi, G. Morton, Paolo Privitera, M. Mazzucato, J. R. Mahon, Pierre Juillot, Claire Bourdarios, E. Boudinov, W. Venus, Christopher Parkes, Matteo Pegoraro, B. Buschbeck, Z. Krumstein, A. De Angelis, S. Paiano, A. Onofre, P. Collins, J. Cuevas Maestro, Daniel Jeans, A. De Min, V. Obraztsov, Paolo Morettini, Daniel Bloch, P. Roudeau, J. G. Loken, P. Beilliere, Ahmimed Ouraou, M. S. Bilenky, F. Tegenfeldt, Luis Peralta, F. Kapusta, P. Gris, E. Cortina, S. Heising, G. Sajot, U. Flagmeyer, Krzysztof Nawrocki, Stavros Maltezos, H. M. Blom, Y. Sacquin, Kathy Huet, Valeriy Pozdniakov, L.J. Carroll, Per Jönsson, A. Pullia, Anna Lipniacka, Fabio Cossutti, Igor Boyko, T. Lesiak, C. Joram, F. Simonetto, G. Leder, M. Gaspar, J. P. Laugier, R. Barbier, Marek Szczekowski, B. Åsman, V. Lefebure, P. Rosinsky, D. Crennell, N. Mastroyiannopoulos, R. Moeller, F. Mandl, H. Klein, L. K. Resvanis, K. Osterberg, Massimo Caccia, L. Simard, M. Trochimczuk, K. Cieslik, M. Bonesini, D. Gamba, M. Witek, G. Voulgaris, F. Verbeure, B. Stugu, M. Gandelman, E. G. Anassontzis, J. P. Engel, P. Bambade, M. V. Castillo Gimenez, B. Golob, V. Gracco, Klaus Moenig, Fabrizio Parodi, M. A. Houlden, S. Marti i Garcia, W. Da Silva, W. A. Mitaroff, W. K. Van Doninck, F. Richard, P. Chochula, C. Matteuzzi, S. Almehed, R. Chierici, F. Hahn, M. Nassiakou, R. Paiva, S. Haider, F. J. Harris, F. Terranova, C. Caso, H. B. Crawley, Alessandra Romero, A. Ruiz, I. Bozovic, N. Van Remortel, R. Sosnowski, F. Naraghi, Dimos Sampsonidis, Phillip Allport, G. Della Ricca, P. Rebecchi, Th. D. Papadopoulou, Guillelmo Gomez-Ceballos, José Salt, Amelia Maio, W. Van den Boeck, Cristian Stanescu, P. Branchini, J. D. Durand, A. G. Olshevski, U. Schwickerath, Maria Roberta Monge, A. Zalewska, W. T. Meyer, M. Verlato, Laurent Mirabito, T. J. V. Bowcock, T. L. Hessing, M. Berggren, Z. Albrecht, Juan Fuster, Antonio Ferrer, D. Bertini, R. Jacobsson, S. Todorova, T. Allmendinger, J. M. Lopez, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, Marc Besancon, Konstantinos Papageorgiou, J. Yi, M. Battaglia, J. Masik, A. Van Lysebetten, Sandor Czellar, G. Polok, B. Bouquet, Yu. Gouz, Ernesto Migliore, P. Abreu, R. Orava, G. Eigen, Maria Elena Pol, S. Katsanevas, A. Kiiskinen, D. Y. Bardin, Sandra Amato, T. Podobnik, O. Kouznetsov, K. Belous, M. Regler, S. Squarcia, Yu. Sedykh, H. Saarikko, J. Dolbeau, P.S.L. Booth, E. Piotto, W. Bonivento, A. Malek, A. Sokolov, Marcos Dracos, H. Palka, and J. W. Lamsa
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Context (language use), 01 natural sciences, Lightest Supersymmetric Particle, Nuclear physics, Pair production, Chargino, 0103 physical sciences, High Energy Physics::Experiment, Gravitino, Production (computer science), 010306 general physics, Energy (signal processing)
Abstract: Promptly decaying lightest charginos were searched for in the context of scenarios with gravitino LSP. It was assumed that the stau is the next to lightest supersymmetric particle (NLSP). Data collected with the DELPHI detector at a centre-of-mass energy near 183~{~mbox{${mathrm{GeV}}$}}\nwere analysed combining the methods developed in previous searches. No evidence for the production of these particles was found. Hence, limits were derived at 95% confidence level. The mass of charginos was found to be greater than 85.5~GeV/$c^2$ for $m_{ ilde{chi}^+_1}-m_{ ilde{ au}_1}geq 0.3 {mathrm{GeV}}/c^2$, independently of the mass of the gravitino.
Published: 1999
Full Text: View/download PDF

14. Measurement of the rate of events in hadronic Z decays and the extraction of the gluon splitting into

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertini, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, W. Bonivento, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, P. Branchini, T. Brenke, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, T. Burgsmueller, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, Ph. Charpentier, L. Chaussard, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, J-H. Cowell, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, A. Deghorain, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, B. Erzen, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, P. Ferrari, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, C. Green, H-J. Grimm, P. Gris, G. Grosdidier, K. Grzelak, M. Gunther, J. Guy, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, B.P. Kersevan, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, M. Koratzinos, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, J. Krstic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, P. Langefeld, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, S. Nemecek, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Normand, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, H. Schneider, Ph. Schwemling, B. Schwering, U. Schwickerath, M.A.E. Schyns, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, R. Sekulin, R.C. Shellard, A. Sheridan, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, P. Sponholz, S. Squarcia, C. Stanescu, S. Stanic, K. Stevenson, A. Stocchi, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, O. Tchikilev, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, A. Tsirou, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, G.W. Van Apeldoorn, P. Van Dam, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. Van Remortel, I. Van Vulpen, N. Vassilopoulos, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, C. Vollmer, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Jet (particle physics), 01 natural sciences, Bottom quark, Gluon, 0103 physical sciences, Invariant mass, Production (computer science), Atomic physics, 010306 general physics, Bar (unit)
Abstract: The rate $Z \rightarrow b\overline{b}b\overline{b}$ was measured using about $2 x 10^6$ hadronic decays collected by the DELPHI experiment in 1994 and 1995. Events were forced into 3-jets with $y_{min} 0.06$ and a b-tag was required for every jet. The rate was measured to be: $R_{4b} = BR(Z \to b\overline{b}b\overline{b}) / BR(Z \to hadrons) = (6.0 +- 1.9(stat) +- 1.4(syst.)) x 10^{-4}$ where the invariant mass of every $b\overline{b}$ system is above twice the b quark mass. Using the value of $R_{4b}$ the probability of secondary production of a $b\overline{b}$ pair from a gluon per hadronic $Z$ decay, $g_{bb}$, was extracted and found to be: $g_{bb} = (3.3+-1.0(stat.) +- 0.8(syst.)) x 10^{-3}$.
Published: 1999
Full Text: View/download PDF

15. Measurement of inclusive ρ0, f0(980), f2(1270), K and f′2(1525) production in Z0 decays

Author: Natale Demaria, J. H. Lopes, L. S. Vertogradov, Mario Sannino, T. Spassov, G. Borisov, U. Parzefall, A. Firestone, Attilio Andreazza, M. Mc Cubbin, M. Baubillier, V. Canale, K. Hultqvist, Rafael Marco, P. B. Renton, Jørgen Beck Hansen, R. Lopez-Fernandez, R. C. Shellard, Josef Hrubec, H. Palka, Alexander Vodopyanov, Stefano Ragazzi, Morgan Lethuillier, C. Mulet-Marquis, Paulo J. S. Gonçalves, P. Van Dam, P. Abreu, N. Neufeld, F. Bianchi, A. Tomaradze, Martijn Mulders, Martino Margoni, E. Fokitis, G. Vegni, B. Marechal, A. M. Segar, A. Sheridan, G. A. Chelkov, Marta Calvi, Geoffrey Smith, D. Vilanova, T. Brenke, Ugo Amaldi, G. J. Hughes, W. De Boer, E. Zevgolatakos, K. Stevenson, J. Yi, F. Fontanelli, J. Palacios, Tiziano Rovelli, M. Moch, Dietrich Liko, Hans Dijkstra, P. Bruckman, A. W. Borgland, G. Valenti, Chiara Mariotti, Piotr Zalewski, K. Grzelak, G. Orazi, Ugo Gasparini, Guido Barbiellini, J. Guy, S. Stanic, Tim Adye, J. Cuevas Maestro, Chariclia Petridou, A. G. Olshevski, Luis Peralta, F. Kapusta, M. Battaglia, Allan Hallgren, Antonio Baroncelli, A. N. Sisakian, Wolfgang Adam, D. Fassouliotis, I. van Vulpen, G. W. Van Apeldoorn, D. Bertrand, S. Hahn, A. Kiiskinen, L. Ventura, Jiri Chudoba, L. Bugge, Pawel Jalocha, Barry King, Luca Tortora, T. Myklebust, Francesca Romana Cavallo, E. Spiriti, A. Sadovsky, F. Pierre, Daniel Treille, V.A. Uvarov, M. Bigi, Y. Arnoud, U. Schwickerath, A. Stocchi, Vincent Hedberg, P. Herquet, P. Andersson, R. Contri, J. Fayot, Sandra Amato, T. Podobnik, J. Timmermans, A. Van Lysebetten, Sandor Czellar, E. G. Anassontzis, Yu. Belokopytov, J. Ridky, V. V. Lapin, D. W. Lane, M. A. Bizouard, Gunter Wolf, C. De Clercq, Maria Roberta Monge, Richard Brenner, A. Pullia, T. Burgsmueller, G. Ekspong, D. Stampfer, G. Polok, Christine Kourkoumelis, W. J. Murray, J. N. Jackson, A. Duperrin, J. P. Engel, Christophe Royon, S. Hoorelbeke, Mariusz Witek, Paolo Ronchese, S. Squarcia, H. Saarikko, F. Simonetto, M. V. Castillo Gimenez, W. T. Meyer, R. Janik, Yu. Gouz, M. Gunther, J-C. Marin, B. Erzen, P. Kokkinias, R. Strub, Manolis Dris, Luc Pape, Manfred Krammer, Denis Gelé, J. Kurowska, N. J. Kjaer, P. N. Ratoff, F. Carena, Rupert Leitner, T. Tabarelli, P. Roudeau, Ernesto Migliore, A. Passeri, Guy Wilkinson, G. Leder, Pierre Juillot, E. Boudinov, O. Tchikilev, P. Rosinsky, G. Matthiae, Oxana Smirnova, Mattias Ellert, Andrea Perrotta, M. A. Winter, M. Gaspar, M. Verlato, Alberto Benvenuti, G. Smadja, S. Crepe, J. Van Eldik, S. Cabrera, B. Åsman, H. Rahmani, Laurent Mirabito, K. Karafasoulis, G. Damgaard, A. Petrolini, C. Gaspar, M. Davenport, A. Onofre, B. Golob, V. Chorowicz, M. Begalli, B. De Lotto, G. Crosetti, Evgueni Vlasov, V. Obraztsov, C. Green, G. Tristram, R. Alemany, Juergen Thomas, M. L. Turluer, D. Reid, Ariella Cattai, R. Moeller, F. Barao, Paolo Morettini, J. G. Loken, G. Morton, Paolo Privitera, M. Mazzucato, J. R. Mahon, V. Ruhlmann-Kleider, G. C. Zucchelli, R. Mc Nulty, V. Lefebure, P. Seager, M. Berggren, F. Tegenfeldt, L. K. Resvanis, P. Beilliere, M. Pernicka, D. Crennell, Jelena Krstic, F. Mandl, N. Tinti, P. Gris, E. Cortina, V. Gracco, F. Ledroit, P. Kubinec, S. Fichet, G. Mc Pherson, C. Joram, A. G. Frodesen, Gianni Zumerle, Dimos Sampsonidis, Phillip Allport, G. Della Ricca, P. Rebecchi, O.M. Kouznetsov, Antonio Ferrer, D. Bertini, R. Jacobsson, S. Todorova, H. Herr, L. G. Tkatchev, A. Nygren, J. W. Lamsa, Jesus Marco, G. Lenzen, O. Ullaland, Nikolaos P. Mastroyiannopoulos, C. Bosio, V. Lepeltier, M. Siebel, L. Leinonen, K. Muenich, Massimo Caccia, P. Poropat, T. J. V. Bowcock, V. Kostioukhine, M. Koratzinos, Clara Troncon, Paolo Checchia, Ph. Gavillet, S. Gamblin, Guillelmo Gomez-Ceballos, A. Deghorain, O. Klapp, T. L. Hessing, Andromachi Tsirou, L. Simard, L. Gorn, Andre Augustinus, José Salt, E. Higon, S. Tzamarias, N. I. Zimin, T. G M Malmgren, H. Wahlen, Maciej Górski, Theodora Papadopoulou, Ph. Schwemling, Louis Lyons, Klaus Moenig, Fabrizio Parodi, M. A. Houlden, S. Marti i Garcia, Krzysztof Nawrocki, F. Scuri, A. Kinvig, E. Ferrer-Ribas, Marek Szczekowski, H. Klein, Amelia Maio, Borut Paul Kerševan, Borge Svane Nielsen, K. Cieslik, O. Yushchenko, R. Sekulin, Tiziano Camporesi, J. MacNaughton, G. Barker, K. Osterberg, V. Nomokonov, T. Alderweireld, B. Franek, S. De Brabandere, G. Cosme, M. Trochimczuk, Josef Strauss, P. J. Holt, D. Rakoczy, Cristian Stanescu, P. Branchini, H. Schneider, T. Allmendinger, R. Paiva, M. Feindt, S. Sánchez Navas, N. G. Redaelli, P. V. Chliapnikov, J. J. Hernandez, Claire Bourdarios, P. Negri, M. Bonesini, V. Chabaud, M. Espirito Santo, Z. Krumstein, Marco Bozzo, Demetrios Loukas, R. Lauhakangas, J. M. Lopez, S. Haider, T. Moa, Krzysztof Doroba, Chiara Meroni, C. Vollmer, S. Paiano, A. De Min, P. Ferrari, D. Gamba, I. Lippi, Jean-Dominique Durand, K. H. Becks, E. Kriznic, G. Sajot, U. Flagmeyer, A. Tonazzo, Petar Adzic, G. Voulgaris, J. H. Wickens, E. Vallazza, Marco Paganoni, C. Caso, F. Verbeure, I. Gil, E. K. Johansson, N. Pukhaeva, J. E. Augustin, Anna Lipniacka, Peter Kluit, A. Zalewska, C. Walck, R. Reinhardt, V. Verzi, Z. Albrecht, Juan Fuster, P. Sponholz, Göran Jarlskog, B. Stugu, C. Weiser, F. Mazzucato, M. Gandelman, H. J. Grimm, A. Markou, Danilo Zavrtanik, Ch. Jarlskog, F. Glege, H. B. Crawley, R. Gokieli, U. Mjoernmark, N. Vassilopoulos, L. Vitale, W. D. Apel, Paul Baillon, Alexander Lincoln Read, R. Muresan, F. Martinez-Vidal, Antonios Leisos, D. Radojicic, Georgios Fanourakis, M. Szeptycka, Marc Besancon, Konstantinos Papageorgiou, Sofia Andringa, H. T. Phillips, B. Tome, P. Antilogus, F. Fulda-Quenzer, A. Normand, R. Barbier, P. Lutz, V. Malychev, G. Grosdidier, A. Sopczak, E. C. Katsoufis, G. Gopal, E. Graziani, Maarten Boonekamp, P. Delpierre, J. M. Brunet, L. De Paula, E. Falk, M. S. Bilenky, L. Di Ciaccio, L.N. Gerdyukov, L.J. Carroll, Tord Ekelof, N. N. Khovanski, P. Buschmann, B. Muryn, R. Mc Kay, G. Myatt, Fabio Cossutti, J. P. Laugier, J. Grahl, Norbert Neumeister, J. Libby, Ole Røhne, M. Pimenta, Igor Boyko, B. A. Khomenko, R. Keranen, Philippe Charpentier, Francisco Matorras, B. Loerstad, Francesco Navarria, I. Gonzalez Caballero, T. Lesiak, P. Langefeld, T. Buran, Markus Elsing, Klaus Hamacher, X. Moreau, J. M. Heuser, Oliver Passon, A. Miagkov, M. Nikolenko, Corinne Berat, Olga Botner, Christopher Parkes, Matteo Pegoraro, Patrick Jarry, G. Rinaudo, G. Transtromer, Carmen García, U. Mueller, E. I. Rosenberg, K. Kurvinen, D. Wicke, C. Martinez-Rivero, Reynald Pain, H. Foeth, B. Ueberschaer, W. Venus, A. De Angelis, P. Collins, Alessandra Romero, A. Ruiz, Daniel Bloch, Ahmimed Ouraou, S. Heising, M. A E Schyns, V. Vrba, I. Bozovic, R. Sosnowski, F. Naraghi, R. Nicolaidou, F. J. Harris, F. Terranova, J. Dolbeau, P. Bambade, P.S.L. Booth, E. Piotto, J. Masik, B. Bouquet, B. Jean-Marie, R. Orava, G. Eigen, Maria Elena Pol, S. Katsanevas, D. Y. Bardin, W. Da Silva, W. A. Mitaroff, W. K. Van Doninck, F. Richard, P. Chochula, C. Matteuzzi, S. Almehed, R. Chierici, F. Hahn, M. Regler, Yu. Sedykh, J. H. Cowell, I. A. Tyapkin, I. V. Ajinenko, N. Ghodbane, J. Drees, Evangelos Gazis, L. Chaussard, H. M. Blom, Y. Sacquin, Kathy Huet, Valeriy Pozdniakov, Per Jönsson, W. Bonivento, A. Malek, A. Sokolov, Marcos Dracos, A. Galloni, S. O. Holmgren, and G. D. Alekseev
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Time projection chamber, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, 01 natural sciences, Particle identification, Ionization, 0103 physical sciences, Large Electron–Positron Collider, 010306 general physics, Cherenkov radiation
Abstract: DELPHI results are presented on the inclusive production of the neutral mesons ρ0, f0(980), f2(1270), KView the MathML source and f′2(1525) in hadronic Z0 decays. They are based on about 2 million multihadronic events collected in 1994 and 1995, using the particle identification capabilities of the DELPHI Ring Imaging Cherenkov detectors and measured ionization losses in the Time Projection Chamber. The total production rates per hadronic Z0 decay have been determined to be: 1.19±0.10 for ρ0; 0.164±0.021 for f0(980); 0.214±0.038 for f2(1270); 0.073±0.023 for KView the MathML source; and 0.012±0.006 for f′2(1525). The total production rates for all mesons and differential cross-sections for the ρ0, f0(980) and f2(1270) are compared with the results of other LEP experiments and with models.
Published: 1999
Full Text: View/download PDF

16. Search for Leptoquarks and FCNC in e+e− annihilations at GeV

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, T. Aldeweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, P. Beilliere, Yu. Belokopytov, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertini, D. Bertrand, M. Besancon, F. Bianchi, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, W. Bonivento, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, P. Branchini, T. Brenke, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, T. Burgsmueller, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, A.J. Camacho Rozas, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, M. Chapkin, Ph. Charpentier, L. Chaussard, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, J-H. Cowell, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, G. Damgaard, M. Davenport, W. Da Silva, A. Deghorain, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, S. De Brabandere, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, B. Erzen, M. Espirito Santo, E. Falk, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Fenyuk, P. Ferrari, A. Ferrer, E. Ferrer-Ribas, S. Fichet, A. Firestone, P.-A. Fischer, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, J. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, M. Gorski, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, C. Green, H-J. Grimm, P. Gris, K. Grzelak, M. Gunther, J. Guy, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, D. Holthuizen, S. Hoorelbeke, M. Houlden, J. Hrubec, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, B.P. Kersevan, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, M. Koratzinos, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, C. Kreuter, E. Kriznic, J. Krstic, Z. Krumstein, P. Kubinec, W. Kucewicz, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, P. Langefeld, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, M. Lokajicek, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, J. Mazik, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, N. Neumeister, R. Nicolaidou, B.S. Nielsen, M. Nikolenko, V. Nomokonov, A. Normand, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, H. Schneider, Ph. Schwemling, U. Schwickerath, M.A.E. Schyns, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, R. Sekulin, R.C. Shellard, A. Sheridan, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, T.B. Skaali, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, P. Sponholz, S. Squarcia, D. Stampfer, C. Stanescu, S. Stanic, S. Stapnes, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, F. Tegenfeldt, F. Terranova, J. Thomas, A. Tilquin, J. Timmermans, N. Tinti, L.G. Tkatchev, S. Todorova, D.Z. Toet, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, A. Tsirou, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, B. Ueberschaer, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, G.W. Van Apeldoorn, P. Van Dam, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, I. Van Vulpen, N. Vassilopoulos, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, C. Vollmer, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, G.C. Zucchelli, and G. Zumerle
Subjects: Semileptonic decay, Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Flavour, Scalar (mathematics), Charge (physics), Jet (particle physics), 01 natural sciences, 0103 physical sciences, High Energy Physics::Experiment, Leptoquark, 010306 general physics, Lepton
Abstract: A search for events with one jet and at most one isolated lepton used data taken at LEP-2 by the DELPHI detector.These data were accumulated at a center-of-mass energy of 183 GeV and correspond to an integrated luminosity of 47.7 1/pb. Production of single scalar and vector leptoquarks was searched for. Limits at 95% confidence level were derived on the masses (ranging from $134 GeV/c^2$ to $171 GeV/c^2$ for electromagnetic type couplings) and couplings of the leptoquark states.A search for top-charm flavour changing neutral currents($e^+ e^- \to \bar t c$ or charge conjugate) used the semileptonic decay channel. A limit on the flavour changing cross-section via neutral currents was set at 0.55pb (95% confidence level).
Published: 1999
Full Text: View/download PDF

17. Search for charginos, neutralinos and gravitinos in e+e− interactions at GeV

Author: V. Nomokonov, C. Vollmer, Stanislav Nemecek, N. Pukhaeva, V. Verzi, C. Vander Velde, G. A. Chelkov, Ugo Amaldi, W. De Boer, E. Zevgolatakos, A. W. Borgland, Richard Brenner, P. Abreu, J. Garcia, W. Da Silva, V. Obraztsov, F. Tegenfeldt, P. Gris, Tiziano Camporesi, J. J. Hernandez, J. E. Augustin, S. Cabrera, C. Gaspar, Pierre Juillot, E. Boudinov, M. Verlato, L.N. Gerdyukov, Oxana Smirnova, K. Karafasoulis, I. Gonzalez Caballero, N. Tinti, M. L. Turluer, D. Reid, D. J. Holthuizen, P. J. Holt, N. G. Redaelli, Tord Ekelof, F. Simonetto, P. Delpierre, E. G. Anassontzis, J. P. Engel, P. Bambade, A. Normand, G. C. Zucchelli, M. Berggren, Marco Bozzo, F. Kapusta, M. V. Castillo Gimenez, T. J. V. Bowcock, Christophe Royon, N. Neufeld, B. Loerstad, U. Mjoernmark, Jelena Krstic, Paolo Morettini, K. Stevenson, Y. Belokopytov, T. L. Hessing, G. W. Van Apeldoorn, G. Leder, T. Buran, Markus Elsing, B. Tome, P. Antilogus, O.M. Kouznetsov, G. Orazi, J. G. Loken, P. Beilliere, G. Damgaard, V. Lepeltier, S. Hoorelbeke, Gianni Zumerle, A. Galloni, Paolo Ronchese, A. Kiiskinen, A. G. Frodesen, M. Gaspar, G. Myatt, B. Åsman, M. Siebel, B. Golob, J. H. Cowell, S. O. Holmgren, D. Bertini, P. Poropat, H. T. Phillips, Andromachi Tsirou, Klaus Hamacher, Paolo Checchia, N. J. Kjaer, K. Muenich, Oliver Passon, L. Ventura, A. Miagkov, R. Paiva, Ph. Gavillet, Sandra Amato, Luca Tortora, T. Myklebust, L. S. Vertogradov, V. Gracco, Borut Paul Kerševan, Petar Adzic, R. Jacobsson, S. Todorova, T. Podobnik, S. Gamblin, Winfried Mitaroff, Krzysztof Nawrocki, P. Andersson, V. Lefebure, D. Crennell, Andre Augustinus, P. Herquet, T. Aldeweireld, I. A. Tyapkin, Matteo Pegoraro, Patrick Jarry, G. Barker, G. Rinaudo, J. Salt, Ugo Gasparini, E. C. Katsoufis, G. Gopal, S. Tzamarias, N. I. Zimin, F. Mandl, D. Bertrand, P. Seager, Klaus Moenig, Fabrizio Parodi, R. Contri, Jiri Chudoba, Maarten Boonekamp, M. A. Houlden, S. Marti i Garcia, C. Green, Claire Bourdarios, L. De Paula, I. V. Ajinenko, Maciej Górski, Christine Kourkoumelis, L. Di Ciaccio, Louis Lyons, Paulo J. S. Gonçalves, P. Van Dam, Piotr Zalewski, Corinne Berat, Olga Botner, G. Borisov, E. Falk, N. N. Khovanski, R. Pain, C. Walck, Wolfgang Adam, G. Tristram, S. Squarcia, H. Saarikko, E. Cortina, J. M. Heuser, T. Burgsmueller, U. Mueller, W. K. Van Doninck, F. Richard, R. Reinhardt, P. Roudeau, P. Kubinec, T. Tabarelli, P. Chochula, C. Matteuzzi, J. P. Laugier, G. Smadja, Y. Arnoud, S. Almehed, G. Transtromer, E. I. Rosenberg, R. Chierici, Carmen García, Clara Troncon, J. Van Eldik, F. Hahn, V. Chorowicz, V.A. Uvarov, R. Lopez-Fernandez, R. C. Shellard, Josef Hrubec, Manolis Dris, K. Kurvinen, D. Wicke, J. Libby, Ole Røhne, C. Weiser, M. Nikolenko, M. Trochimczuk, C. Kreuter, M. Pimenta, P. Buschmann, B. Muryn, B. A. Khomenko, O. Solovianov, Guido Barbiellini, J. W. Lamsa, Natale Demaria, R. Mc Kay, H. Rahmani, P. V. Chliapnikov, A. Stocchi, Francesco Navarria, D. Rakoczy, A. Tilquin, Josef Strauss, A. M. Segar, C. Martinez-Rivero, P. Langefeld, M. Bonesini, J. Guy, G. Cosme, Ariella Cattai, S. Fichet, A. Passeri, Alberto Benvenuti, J. N. Jackson, Pawel Jalocha, Barry King, F. Barao, Demetrios Loukas, E. Spiriti, V. Chabaud, M. Espirito Santo, A. Deghorain, E. Ferrer-Ribas, S. Haider, P. B. Renton, S. Stanic, Tim Adye, F. Ledroit, J. Fuster, Jacques Lemonne, Andrea Perrotta, P. Kokkinias, W. Venus, G. Vegni, R. Frühwirth, P. Bruckman, D. Stampfer, J. Timmermans, C. Caso, O. Ullaland, B. Marechal, Marta Calvi, G. Valenti, R. Lauhakangas, F. Fontanelli, J. Palacios, J. Grahl, G. D. Alekseev, J. D. Durand, Mariusz Witek, M. Gunther, H. J. Grimm, Attilio Andreazza, Geoffrey Smith, D. Fassouliotis, H. B. Crawley, Toralf Bernhard Skaali, E. Higon, A. Tonazzo, A. G. Olshevski, O. Klapp, Rupert Leitner, F. Scuri, Wojciech Kucewicz, E. Kriznic, F. Pierre, B. Jean-Marie, Mario Sannino, M. Baubillier, Borge Svane Nielsen, G. Matthiae, S. De Brabandere, U. Schwickerath, V. Canale, D. Gamba, Krzysztof Doroba, Chiara Meroni, Vincent Hedberg, M. A. Bizouard, F. Fulda-Quenzer, R. Keranen, M. Mc Cubbin, B. Franek, I. van Vulpen, H. M. Blom, D. W. Lane, A. Zalewska, Peter Kluit, K. Hultqvist, R. Mc Nulty, Philippe Charpentier, Francisco Matorras, E. Graziani, F. Mazzucato, Rafael Marco, T. Spassov, A. N. Sisakian, A. Maio, G. Ekspong, Danilo Zavrtanik, Alexander Vodopyanov, Y. Sacquin, J. M. Brunet, Vaclav Vrba, H. Foeth, Maria Roberta Monge, T. Allmendinger, G. Voulgaris, M. S. Bilenky, Hans Dijkstra, F. Bianchi, A. Sadovsky, V. Ruhlmann-Kleider, J-C. Marin, B. Erzen, R. Gokieli, R. Muresan, W. T. Meyer, L.J. Carroll, B. Ueberschaer, A. Sheridan, P. N. Ratoff, Gunter Wolf, Sofia Andringa, Mattias Ellert, M. Begalli, J. M. Lopez, P. A. Fischer, L. Bugge, Dimos Sampsonidis, B. Bouquet, J. H. Lopes, U. Parzefall, A. Firestone, Kathy Huet, Valeriy Pozdniakov, R. Alemany, Phillip Allport, A. De Angelis, D. Vilanova, P. Collins, A. J. Camacho Rozas, J. Cuevas Maestro, G. Della Ricca, L. Gorn, P. Rebecchi, X. Moreau, Laurent Mirabito, Stefano Ragazzi, Fabio Cossutti, D. Z. Toet, F. Verbeure, Denis Gelé, Daniel Bloch, H. Palka, Morgan Lethuillier, M. Davenport, Guillelmo Gomez-Ceballos, Ahmimed Ouraou, G. Morton, Paolo Privitera, Theodora Papadopoulou, M. Mazzucato, J. R. Mahon, Igor Boyko, A. Duperrin, R. Orava, C. Mulet-Marquis, T. Lesiak, G. J. Hughes, S. Heising, A. Ferrer, R. Janik, Chiara Mariotti, Cristian Stanescu, P. Branchini, Martijn Mulders, Per Jönsson, I. Lippi, Paul Baillon, Alexander Lincoln Read, H. Schneider, J. H. Wickens, M. Szeptycka, Marc Besancon, Konstantinos Papageorgiou, Marco Paganoni, Guy Wilkinson, C. Bosio, T. Brenke, J. Yi, M. Battaglia, S. Hahn, Francesca Romana Cavallo, Juergen Thomas, L. Vitale, Martino Margoni, E. Fokitis, Antonios Leisos, D. Radojicic, E. K. Johansson, G. Eigen, I. Gil, Georgios Fanourakis, N. Neumeister, Steinar Stapnes, K. Grzelak, A. Van Lysebetten, Sandor Czellar, N. Vassilopoulos, Manfred Krammer, V. V. Lapin, Allan Hallgren, P. Lutz, W. Bonivento, G. Polok, Antonio Baroncelli, B. Stugu, C. De Clercq, W. J. Murray, Yu. Gouz, V. Malychev, R. Strub, Nikolaos P. Mastroyiannopoulos, M. Gandelman, A. Malek, A. Sokolov, Marcos Dracos, N. Ghodbane, T. G M Malmgren, J. Dolbeau, H. Wahlen, J. Drees, Evangelos Gazis, L. Chaussard, P.S.L. Booth, Luis Peralta, A. Pullia, K. H. Becks, E. Vallazza, Dietrich Liko, Chariclia Petridou, M. A. Winter, A. Petrolini, B. De Lotto, G. Crosetti, Evgueni Vlasov, G. Mc Pherson, H. Herr, L. G. Tkatchev, A. Nygren, Daniel Treille, M. Bigi, J. Ridky, C. Parkes, F. Carena, M. Pernicka, Marek Szczekowski, Jesus Marco, G. Lenzen, J. Mazik, F. Martinez-Vidal, V. Kostioukhine, M. Koratzinos, M. Feindt, S. Sánchez Navas, P. Negri, P. Ferrari, P. Sponholz, Göran Jarlskog, H. Klein, Ch. Jarlskog, F. Glege, W. D. Apel, K. Osterberg, Ph. Schwemling, O. Yushchenko, E. Piotto, R. Sekulin, Maria Elena Pol, T. Moa, S. Katsanevas, A. Sopczak, D. Y. Bardin, M. Regler, P. Rosinsky, R. Moeller, L. K. Resvanis, Massimo Caccia, Antonio Onofre, A. Markou, L. Simard, L. Leinonen, Tiziano Rovelli, Z. Krumstein, S. Paiano, A. De Min, G. Sajot, U. Flagmeyer, Yu. Sedykh, Anna Lipniacka, Luc Pape, J. Kurowska, C. Joram, R. Barbier, I. Bozovic, R. Sosnowski, F. Naraghi, R. Nicolaidou, J. Fayot, Ernesto Migliore, Alessandra Romero, A. Ruiz, M. A E Schyns, F. J. Harris, F. Terranova, and A. Kinvig
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, Supergravity, Supersymmetry, 01 natural sciences, Lower limit, Nuclear physics, Chargino, 0103 physical sciences, Neutralino, Large Electron–Positron Collider, Gravitino, 010306 general physics
Abstract: An update of the searches for charginos and neutralinos is presented, based on a data sample corresponding to the 53.9 pb−1 recorded by the DELPHI detector in 1997, at a centre-of-mass energy of 183 GeV. No evidence for a signal was found. The lower mass limits are 4–5 GeV/c2 higher than those obtained at a centre-of-mass energy of 172 GeV. The (μ,M2) domain excluded by combining the neutralino and chargino searches implies a limit on the mass of the lightest neutralino which, for a heavy sneutrino, is constrained to be above 29.1 GeV/c2 for tanβ≥ 1.
Published: 1999
Full Text: View/download PDF

18. Measurement of the e+e−→γγ(γ) cross section at the LEP energies

Author: P. Abreu, W. Adam, T. Adye, P. Adzic, G.D. Alekseev, R. Alemany, P.P. Allport, S. Almehed, U. Amaldi, S. Amato, P. Andersson, A. Andreazza, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, O. Barring, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, P. Beilliere, Yu. Belokopytov, K. Belous, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertini, D. Bertrand, M. Besancon, F. Bianchi, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, M. Bonesini, W. Bonivento, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, P. Branchini, T. Brenke, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, T. Burgsmueller, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, A.J. Camacho Rozas, T. Camporesi, V. Canale, M. Canepa, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, Ch. Cerruti, V. Chabaud, M. Chapkin, Ph. Charpentier, L. Chaussard, P. Checchia, G.A. Chelkov, M. Chen, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, P. Collins, M. Colomer, R. Contri, E. Cortina, G. Cosme, F. Cossutti, J-H. Cowell, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, B. Dalmagne, G. Damgaard, M. Davenport, W. Da Silva, A. Deghorain, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, S. De Brabandere, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, A. Di Diodato, A. Djannati, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, K.-A. Drees, M. Dris, A. Duperrin, J-D. Durand, R. Ehret, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, B. Erzen, M. Espirito Santo, E. Falk, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Fenyuk, P. Ferrari, A. Ferrer, S. Fichet, A. Firestone, P.-A. Fischer, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, M. Gandelman, C. Garcia, J. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, J-P. Gerber, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, M. Gorski, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, C. Green, A. Grefrath, P. Gris, G. Grosdidier, K. Grzelak, M. Gunther, J. Guy, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, F.J. Harris, V. Hedberg, S. Heising, R. Henriques, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, D. Holthuizen, S. Hoorelbeke, M. Houlden, J. Hrubec, K. Huet, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, E.K. Johansson, L. Jonsson, P. Jonsson, C. Joram, P. Juillot, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, B.A. Khomenko, N.N. Khovanski, B. King, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, D. Knoblauch, P. Kokkinias, A. Konopliannikov, M. Koratzinos, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, C. Kreuter, I. Kronkvist, J. Krstic, Z. Krumstein, P. Kubinec, W. Kucewicz, K. Kurvinen, J.W. Lamsa, L. Lanceri, D.W. Lane, P. Langefeld, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, R. Moeller, K. Moenig, M.R. Monge, X. Moreau, P. Morettini, G. Morton, K. Muenich, M. Mulders, C. Mulet-Marquis, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, S. Nemecek, N. Neufeld, W. Neumann, N. Neumeister, R. Nicolaidou, B.S. Nielsen, M. Nieuwenhuizen, V. Nikolaenko, M. Nikolenko, A. Normand, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, P. Paganini, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, M. Pegoraro, L. Peralta, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, G. Piana, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, D. Rakoczy, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, H. Schneider, Ph. Schwemling, U. Schwickerath, M.A.E. Schyns, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, R. Sekulin, R.C. Shellard, A. Sheridan, R. Silvestre, L. Simard, F. Simonetto, A.N. Sisakian, T.B. Skaali, G. Smadja, O. Smirnova, G.R. Smith, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, P. Sponholz, S. Squarcia, D. Stampfer, C. Stanescu, S. Stanic, S. Stapnes, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, F. Tegenfeldt, F. Terranova, J. Thomas, A. Tilquin, J. Timmermans, L.G. Tkatchev, T. Todorov, S. Todorova, D.Z. Toet, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, G. Transtromer, D. Treille, G. Tristram, A. Trombini, C. Troncon, A. Tsirou, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, B. Ueberschaer, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, G.W. Van Apeldoorn, P. Van Dam, J. Van Eldik, A. Van Lysebetten, I. Van Vulpen, N. Vassilopoulos, G. Vegni, L. Ventura, W. Venus, F. Verbeure, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, V. Vrba, H. Wahlen, C. Walck, C. Weiser, A.M. Wetherell, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, T. Wlodek, G. Wolf, J. Yi, O. Yushchenko, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, G.C. Zucchelli, and G. Zumerle
Subjects: Physics, Coupling constant, Nuclear and High Energy Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, Electron–positron annihilation, 01 natural sciences, 7. Clean energy, Upper and lower bounds, Lower limit, Gamma gamma, Nuclear physics, Excited state, 0103 physical sciences, Cutoff, 010306 general physics
Abstract: The total and the differential cross sections for the reaction e+e− → γγ(γ) 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 Λ+ > 143 GeV and Λ− > 120 GeV, and the lower bound on the mass of an excited electron with an effective coupling constant λγ = 1 is 132 GeV/c2. Upper limits on the branching ratios for the decays Z0 → γγ, Z0 → π0γ, Z0 → ηγ and Z0 → γγγ have been determined to be 5.5 × 10−5, 5.5 × 10−5, 8.0 × 10−5, and 1.7 × 10−5 respectively. All the limits are at the 95% confidence level.
Published: 1998
Full Text: View/download PDF

19. Search for Bs0- oscillations

Author: W Adam, T Adye, I Ajinenko, G.D Alekseev, R Alemany, P.P Allport, S Almehed, U Amaldi, S Amato, P Andersson, A Andreazza, P Antilogus, W-D Apel, Y Arnoud, B Åsman, J-E Augustin, A Augustinus, P Baillon, P Bambade, F Barao, M Barbi, D.Y Bardin, G Barker, A Baroncelli, O Barring, M.J Bates, M Battaglia, M Baubillier, J Baudot, K-H Becks, M Begalli, P Beilliere, Yu Belokopytov, K Belous, A.C Benvenuti, C Berat, M Berggren, D Bertini, D Bertrand, M Besancon, F Bianchi, M Bigi, M.S Bilenky, P Billoir, M-A Bizouard, D Bloch, M Blume, M Bonesini, W Bonivento, M Boonekamp, P.S.L Booth, A.W Borgland, G Borisov, C Bosio, O Botner, E Boudinov, B Bouquet, C Bourdarios, T.J.V Bowcock, I Bozovic, M Bozzo, P Branchini, K.D Brand, T Brenke, R.A Brenner, R.C.A Brown, P Bruckman, J-M Brunet, L Bugge, T Buran, T Burgsmueller, P Buschmann, S Cabrera, M Caccia, M Calvi, A.J.Camacho Rozas, T Camporesi, V Canale, M Canepa, F Carena, L Carroll, C Caso, M.V.Castillo Gimenez, A Cattai, F.R Cavallo, V Chabaud, M Chapkin, Ph Charpentier, L Chaussard, P Checchia, G.A Chelkov, M Chen, R Chierici, P Chliapnikov, P Chochula, V Chorowicz, J Chudoba, V Cindro, P Collins, M Colomer, R Contri, E Cortina, G Cosme, F Cossutti, J-H Cowell, H.B Crawley, D Crennell, G Crosetti, J.Cuevas Maestro, S Czellar, J Dahm, B Dalmagne, G Damgaard, P.D Dauncey, M Davenport, W Da Silva, A Deghorain, G.Della Ricca, P Delpierre, N Demaria, A De Angelis, W De Boer, S De Brabandere, C De Clercq, C De La Vaissiere, B De Lotto, A De Min, L De Paula, H Dijkstra, L Di Ciaccio, A Di Diodato, A Djannati, J Dolbeau, K Doroba, M Dracos, J Drees, K.-A Drees, M Dris, J-D Durand, D Edsall, R Ehret, G Eigen, T Ekelof, G Ekspong, M Elsing, J-P Engel, B Erzen, M.Espirito Santo, E Falk, G Fanourakis, D Fassouliotis, M Feindt, P Ferrari, A Ferrer, S Fichet, T.A Filippas, A Firestone, P.-A Fischer, H Foeth, E Fokitis, F Fontanelli, F Formenti, B Franek, A.G Frodesen, R Fruhwirth, F Fulda-Quenzer, J Fuster, A Galloni, D Gamba, M Gandelman, C Garcia, J Garcia, C Gaspar, U Gasparini, Ph Gavillet, E.N Gazis, D Gele, J-P Gerber, L Gerdyukov, R Gokieli, B Golob, P Goncalves, G Gopal, L Gorn, M Gorski, Yu Gouz, V Gracco, E Graziani, C Green, A Grefrath, P Gris, G Grosdidier, K Grzelak, M Gunther, J Guy, F Hahn, S Hahn, Z Hajduk, A Hallgren, K Hamacher, F.J Harris, V Hedberg, R Henriques, J.J Hernandez, P Herquet, H Herr, T.L Hessing, J.-M Heuser, E Higon, S-O Holmgren, P.J Holt, D Holthuizen, S Hoorelbeke, M Houlden, J Hrubec, K Huet, K Hultqvist, J.N Jackson, R Jacobsson, P Jalocha, R Janik, Ch Jarlskog, G Jarlskog, P Jarry, B Jean-Marie, E.K Johansson, L Jonsson, P Jonsson, C Joram, P Juillot, M Kaiser, F Kapusta, K Karafasoulis, E Karvelas, S Katsanevas, E.C Katsoufis, R Keranen, Yu Khokhlov, B.A Khomenko, N.N Khovanski, B King, N.J Kjaer, O Klapp, H Klein, P Kluit, D Knoblauch, B Koene, P Kokkinias, M Koratzinos, K Korcyl, V Kostioukhine, C Kourkoumelis, O Kouznetsov, M Krammer, C Kreuter, I Kronkvist, Z Krumstein, W Krupinski, P Kubinec, W Kucewicz, K Kurvinen, C Lacasta, I Laktineh, J.W Lamsa, L Lanceri, D.W Lane, P Langefeld, J-P Laugier, R Lauhakangas, G Leder, F Ledroit, V Lefebure, C.K Legan, A Leisos, R Leitner, J Lemonne, G Lenzen, V Lepeltier, T Lesiak, M Lethuillier, J Libby, D Liko, A Lipniacka, I Lippi, B Loerstad, J.G Loken, J.M Lopez, D Loukas, P Lutz, L Lyons, J MacNaughton, G Maehlum, J.R Mahon, A Maio, T.G.M Malmgren, V Malychev, F Mandl, J Marco, R Marco, B Marechal, M Margoni, J-C Marin, C Mariotti, A Markou, C Martinez-Rivero, F Martinez-Vidal, S Marti i Garcia, J Masik, F Matorras, C Matteuzzi, G Matthiae, M Mazzucato, M Mc Cubbin, R Mc Kay, R Mc Nulty, G Mc Pherson, J Medbo, M Merk, C Meroni, S Meyer, W.T Meyer, M Michelotto, E Migliore, L Mirabito, W.A Mitaroff, U Mjoernmark, T Moa, R Moeller, K Moenig, M.R Monge, P Morettini, H Mueller, K Muenich, M Mulders, L.M Mundim, W.J Murray, B Muryn, G Myatt, T Myklebust, F Naraghi, F.L Navarria, S Navas, K Nawrocki, P Negri, S Nemecek, W Neumann, N Neumeister, R Nicolaidou, B.S Nielsen, M Nieuwenhuizen, V Nikolaenko, M Nikolenko, P Niss, A Nomerotski, A Normand, A Nygren, W Oberschulte-Beckmann, V Obraztsov, A.G Olshevski, A Onofre, R Orava, G Orazi, S Ortuno, K Osterberg, A Ouraou, P Paganini, M Paganoni, S Paiano, R Pain, H Palka, Th.D Papadopoulou, K Papageorgiou, L Pape, C Parkes, F Parodi, U Parzefall, A Passeri, M Pegoraro, L Peralta, H Pernegger, M Pernicka, A Perrotta, C Petridou, A Petrolini, H.T Phillips, G Piana, F Pierre, M Pimenta, E Piotto, T Podobnik, O Podobrin, M.E Pol, G Polok, P Poropat, V Pozdniakov, P Privitera, N Pukhaeva, A Pullia, D Radojicic, S Ragazzi, H Rahmani, P.N Ratoff, A.L Read, M Reale, P Rebecchi, N.G Redaelli, M Regler, D Reid, R Reinhardt, P.B Renton, L.K Resvanis, F Richard, J Ridky, G Rinaudo, O Rohne, A Romero, P Ronchese, L Roos, E.I Rosenberg, P Rosinsky, P Roudeau, T Rovelli, W Ruckstuhl, V Ruhlmann-Kleider, A Ruiz, K Rybicki, H Saarikko, Y Sacquin, A Sadovsky, G Sajot, J Salt, M Sannino, H Schneider, U Schwickerath, M.A.E Schyns, G Sciolla, F Scuri, P Seager, Y Sedykh, A.M Segar, A Seitz, R Sekulin, L Serbelloni, R.C Shellard, A Sheridan, I Siccama, P Siegrist, R Silvestre, F Simonetto, A.N Sisakian, T.B Skaali, G Smadja, N Smirnov, O Smirnova, G.R Smith, O Solovianov, R Sosnowski, D Souza-Santos, T Spassov, E Spiriti, P Sponholz, S Squarcia, D Stampfer, C Stanescu, S Stanic, S Stapnes, I Stavitski, K Stevenson, A Stocchi, J Strauss, R Strub, B Stugu, M Szczekowski, M Szeptycka, T Tabarelli, J.P Tavernet, O Tchikilev, F Tegenfeldt, F Terranova, J Thomas, A Tilquin, J Timmermans, L.G Tkatchev, T Todorov, S Todorova, D.Z Toet, A Tomaradze, B Tome, A Tonazzo, L Tortora, G Transtromer, D Treille, G Tristram, A Trombini, C Troncon, A Tsirou, M-L Turluer, I.A Tyapkin, M Tyndel, S Tzamarias, B Ueberschaer, O Ullaland, V Uvarov, G Valenti, E Vallazza, G.W Van Apeldoorn, P Van Dam, J Van Eldik, A Van Lysebetten, N Vassilopoulos, G Vegni, L Ventura, W Venus, F Verbeure, M Verlato, L.S Vertogradov, D Vilanova, P Vincent, L Vitale, E Vlasov, A.S Vodopyanov, V Vrba, H Wahlen, C Walck, F Waldner, C Weiser, A.M Wetherell, D Wicke, J.H Wickens, M Wielers, G.R Wilkinson, W.S.C Williams, M Winter, M Witek, T Wlodek, J Yi, K Yip, O Yushchenko, F Zach, A Zaitsev, A Zalewska, P Zalewski, D Zavrtanik, E Zevgolatakos, N.I Zimin, G.C Zucchelli, and G Zumerle
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Bar (music), Large Electron–Positron Collider
Published: 1997
Full Text: View/download PDF

20. Erratum

Author: P. Abreu, Chiara Mariotti, S. Hahn, Francesca Romana Cavallo, I. Gil, G. D. Alekseev, Oxana Smirnova, Tord Ekelof, Luis Peralta, A. Pullia, H. Foeth, F. Carena, M. Szczekowski, M. A. Winter, V. V. Lapin, P. Morettini, C. De Clercq, A. Kiiskinen, Sylvain Fichet, Sandra Amato, Pierre Juillot, E. Boudinov, Mario Sannino, K. Karafasoulis, Ch Royon, B. Loerstad, A. De Angelis, J. G. Loken, P. Beilliere, Krzysztof Nawrocki, R. Pain, J. Libby, Ole Røhne, M. Pimenta, B. A. Khomenko, M. Mc Cubbin, K. Hultqvist, M. L. Turluer, D. Reid, W. J. Murray, R. Strub, T. Podobnik, O. Kouznetsov, M. Gunther, Rupert Leitner, T. L. Hessing, B. Ueberschaer, J. M. Heuser, A. Petrolini, Rafael Marco, M. A. Bizouard, Maurizio Bonesini, I. Gonzalez Caballero, Gianni Zumerle, P. Van Dam, Oliver Passon, A. Miagkov, F. Simonetto, S. Cabrera, C. Gaspar, R. Contri, N. Tinti, R. Lauhakangas, Ph. Charpentier, Francesco Navarria, P. Langefeld, P. Poropat, Andromachi Tsirou, Andre Augustinus, Frank Glege, Matteo Pegoraro, Patrick Jarry, J. Salt, G. Leder, M. Gaspar, B. Åsman, D. Y. Bardin, S. Squarcia, H. Saarikko, V. Lefebure, D. Crennell, G. C. Zucchelli, K. Muenich, J. D. Durand, G. Matthiae, A. G. Olshevski, B. Franek, E. Kriznic, H. Klein, J. I. Yi, Gy. Wolf, K. Osterberg, B. De Lotto, Evgueni Vlasov, P. Collins, B. Golob, P. Buschmann, R. Mc Kay, D. Vilanova, G. Borisov, B. Erzen, F. Mandl, G. Smadja, Louis Lyons, J. M. Lopez, E. G. Anassontzis, J. P. Engel, M. V. Castillo Gimenez, C. Vander Velde, Ugo Amaldi, E. Zevgolatakos, A. Sadovsky, L. Chaussard, Tiziano Camporesi, G. Cosme, Jelena Krstic, T. Tabarelli, M. Trochimczuk, R. Gokieli, Toralf Bernhard Skaali, T. Spassov, M. Baubillier, M. Witek, G. Voulgaris, F. Verbeure, Daniel Bloch, U. Mueller, Ahmimed Ouraou, A. Andreazza, P. B. Renton, E. Spiriti, G. A. Chelkov, D. Rakoczy, U. Schwickerath, Giovanni Crosetti, Pawel Jalocha, Barry King, Alexander Vodopyanov, R. Frühwirth, J. Timmermans, P. J. Holt, F. Bianchi, M. Pernicka, Andre Tilquin, P. Rebecchi, A. Stocchi, F. Kapusta, C. Petridou, H. Rahmani, B. Stugu, S. Heising, L.N. Gerdyukov, Demetrios Loukas, Manfred Krammer, Denis Gelé, A. Van Lysebetten, Sandor Czellar, B. Marechal, Jesus Marco, G. Lenzen, Morgan Lethuillier, A. Sheridan, J. W. Lamsa, J. Mazik, V. Kostioukhine, M. Koratzinos, F. Parodi, V. Lepeltier, M. Siebel, Sofia Andringa, Rosy Nicolaidou, M. Battaglia, W. Van Doninck, Marta Calvi, G. Mc Pherson, Ariella Cattai, M. Gandelman, Petar Adzic, G. Valenti, A. Galloni, S. O. Holmgren, M. S. Bilenky, Maria Roberta Monge, A. Tonazzo, L. S. Vertogradov, D. Fassouliotis, Vincenzo Canale, Geoffrey Smith, L. Gorn, A. Maio, L.J. Carroll, K. Kurvinen, P.A. Fischer, J. Cuevas Maestro, N. Redaelli, A. Zalewska, D. Wicke, G. Damgaard, C. Martinez-Rivero, L. G. Tkatchev, C. Walck, R. Moeller, Maria Elena Pol, R. Reinhardt, A. Kinvig, T. Buran, Markus Elsing, Y. Arnoud, R. Lopez-Fernandez, A. Normand, C. Kreuter, R. Keranen, F. Pierre, Fabio Cossutti, R. C. Shellard, L. Di Ciaccio, Josef Hrubec, A. M. Segar, T. Myklebust, G. W. Van Apeldoorn, Vincent Hedberg, G. Polok, S. Katsanevas, P. Herquet, Jakita O. Thomas, Igor Boyko, M. Feindt, T. Lesiak, D. Bertrand, L. Ventura, V. Nomokonov, Paolo Checchia, Ph. Gavillet, Francisco Matorras, Andrea Perrotta, L. K. Resvanis, Jacques Lemonne, A. Ferrer, Jiri Chudoba, F. Fontanelli, Arnaud Duperrin, V. Ruhlmann-Kleider, P. Negri, D. W. Lane, P. Andersson, S. Marti i Garcia, U. Mjoernmark, A. Nygren, J. H. Wickens, B. Muryn, Marco Paganoni, W. Bonivento, E. Cortina, Borut Paul Kerševan, R. Muresan, W. De Boer, C. Vollmer, S. Gamblin, M. Berggren, Stanislav Nemecek, Corinne Berat, Olga Botner, A.N. Sisakian, G. Ekspong, Massimo Caccia, T. Burgsmueller, Yu. Gouz, Martijn Mulders, D. Stampfer, P. Sponholz, Göran Jarlskog, L. Vitale, R. Mc Nulty, H. T. Phillips, F. Martinez-Vidal, Antonios Leisos, D. Radojicic, L. Simard, Fabrizio Scuri, Laurent Mirabito, N. Pukhaeva, Josef Strauss, V. Chabaud, M. Espirito Santo, W. Venus, Georgios Fanourakis, V. Verzi, W. Kucewicz, Christine Kourkoumelis, G. Transtromer, G. J. Barker, P. N. Ratoff, Ch. Jarlskog, Mattias Ellert, M. Davenport, Martino Margoni, Paul Baillon, M. Begalli, Manolis Dris, L. Leinonen, Peter Chochula, P. Goncalves, G. P. Gopal, Carmen García, Nikolaos P. Mastroyiannopoulos, D. Zavrtanik, P. Lutz, A. Passeri, J.R. Mahon, G. Hughes, Ernesto Migliore, E. Fokitis, G. Barbiellini, P. Seager, Ph. Schwemling, Claire Bourdarios, P. Roudeau, O. Yushchenko, A. Ruiz, M. A E Schyns, E. Vallazza, Jorge-Armando Benitez Garcia, V. Obraztsov, T. G M Malmgren, H. Wahlen, T. J. V. Bowcock, F. Tegenfeldt, E. Piotto, P. Gris, G. Orazi, W. D. Apel, R. Sekulin, R. Alemany, H. Herr, T. Aldeweireld, Christian Weiser, Alberto Benvenuti, Piotr Zalewski, N. N. Khovanski, J. Van Eldik, Thomas Allmendinger, Dietrich Liko, P. Privitera, E. C. Katsoufis, J. P. Laugier, Ugo Gasparini, Maarten Boonekamp, Klaus Moenig, L. De Paula, A. Onofre, Ivano Lippi, K. H. Becks, Andre Sopczak, Dimos Sampsonidis, E. Falk, M. A. Houlden, J. Palacios, O. Solovianov, T. Moa, G. Della Ricca, J. E. Augustin, Daniel Treille, M. Bigi, B. Tome, G. Wilkinson, F. Fulda-Quenzer, M. Bozzo, R. Paiva, P A. Delpierre, J. Fayot, Guillelmo Gomez-Ceballos, E. Graziani, O. Klapp, V.A. Uvarov, J. Grahl, J. Ridky, M. Regler, J. M. Brunet, Tim Adye, Juan Fuster, Borge Svane Nielsen, D. J. Holthuizen, N. Neufeld, S. Haider, S. De Brabandere, Krzysztof Doroba, P. Antilogus, Chiara Meroni, P. Bruckman, L. Tortora, F. J. Harris, F. Terranova, O. Ullaland, S. Paiano, Peter Kluit, J. N. Jackson, Cristian Stanescu, P. Branchini, F. Mazzucato, Ulrich Parzefall, C. Caso, A. Markou, H. Schneider, P. Kokkinias, Alexander Lincoln Read, M. Szeptycka, Marc Besancon, Konstantinos Papageorgiou, G. Vegni, Tiziano Rovelli, Th D. Papadopoulou, I. Bozovic, H. J. Grimm, Wolfgang Adam, R. Sosnowski, C. Parkes, F. Naraghi, S. Navas, Pamela Ferrari, W. Da Silva, Yu. Belokopytov, D. Bertini, R. Jacobsson, S. Todorova, W. A. Mitaroff, Julien Guy, A. Romero, F. Richard, S. Almehed, Luc Pape, Anna Lipniacka, F. Hahn, C. Matteuzzi, J. Kurowska, V. Gracco, Yu. Sedykh, F. Ledroit, D. Gamba, V. Chorowicz, G. Rinaudo, Maciej Górski, M. Mazzucato, B. Bouquet, B. Jean-Marie, A. G. Frodesen, R. Orava, S. Tzamarias, G. Eigen, P. V. Chliapnikov, J. Dolbeau, P. Bambade, P.S.L. Booth, G. W. Morton, J. C. Marin, I. van Vulpen, E. I. Rosenberg, J. J. Hernandez, E. K. Johansson, H. B. Crawley, C. Bosio, Steinar Stapnes, N. Vassilopoulos, A. W. Borgland, Z. Krumstein, V. Malychev, A. De Min, G. Sajot, U. Flagmeyer, P. Kubinec, Clara Troncon, E. Ferrer-Ribas, N. I. Zimin, S. Ragazzi, L. Bugge, A. J. Camacho Rozas, D. Z. Toet, R. Janik, C. Joram, Norbert Neumeister, Samo Stanič, Klaus Hamacher, R. Barbier, X. Moreau, J. H. Lopes, A. Firestone, C. Mulet-Marquis, T. Brenke, W. T. Meyer, K. Grzelak, Allan Hallgren, Antonio Baroncelli, Roberto Chierici, N. Ghodbane, J. Drees, S. Hoorelbeke, Paolo Ronchese, N. J. Kjaer, Evangelos Gazis, C. Green, G. Tristram, H. Palka, F. Barao, A. Deghorain, E. Higon, M. Verlato, K. Stevenson, J. H. Cowell, P. P. Allport, I. A. Tyapkin, R. A. Brenner, G. Myatt, I. V. Ajinenko, M. Nikolenko, H. M. Blom, Y. Sacquin, Kathy Huet, Valeriy Pozdniakov, Per Jönsson, A. Malek, A. Sokolov, Marcos Dracos, Vaclav Vrba, Natale Demaria, Hans Dijkstra, and P. Rosinsky
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Root (chord), Gravitino
Published: 1999
Full Text: View/download PDF

21. Measurement of the spin density matrix for the rho(0), K*(0)(892) and phi produced in Z(0) decays

Author: H. Foeth, R. Alemany, T. Tabarelli, S. Amato, B. Ueberschaer, P. Rebecchi, H. Rahmani, G. Rinaudo, G. Myatt, A. De Angelis, E. K. Johansson, Steinar Stapnes, M. Gorski, P. Collins, G. D. Alekseev, Ariella Cattai, F. Ledroit, O. Barring, A. Firestone, Daniel Bloch, Kirsten Drees, N. Vassilopoulos, F. Tegenfeldt, Andrei Nomerotski, P. Abreu, Ahmimed Ouraou, Norbert Neumeister, Dietrich Liko, P. Privitera, Imad Baptiste Laktineh, D. Y. Bardin, H. Saarikko, D. J. Holthuizen, M. Mc Cubbin, Robert S. Brown, K. Hultqvist, Rafael Marco, W. D. Apel, B. Franek, L.N. Gerdyukov, P. Siegrist, P. Kokkinias, A. W. Borgland, A. Miagkov, J. Baudot, P. Delpierre, O. Podobrin, M. E. Pol, D. Gamba, B. Dalmagne, B. Golob, V. Malychev, K. Grzelak, F. Naraghi, Z. Krumstein, T. Buran, Markus Elsing, Matteo Pegoraro, A. De Min, T. Brenke, K. Korcyl, R. Lauhakangas, Ph. Charpentier, A. Ferrer, J. Salt, P. Vincent, Daniel Treille, M. Barbi, E. Falk, Patrick Jarry, Wolfgang Adam, D. Knoblauch, A. G. Frodesen, E. Zevgolatakos, Klaus Hamacher, S. Marti i Garcia, D. Edsall, K. Karafasoulis, J. Masik, R. Chierici, G. Wilkinson, J. Ridky, A.N. Sisakian, L. de Paula, S. Tzamarias, C. Parkes, R. Contri, Mario Sannino, Corinne Berat, J. M. Lopez, A. Ruiz, Yu. Belokopytov, G. Fanourakis, J. Fuster, Pierre Juillot, A. Di Diodato, M. L. Turluer, D. Reid, M. A E Schyns, K. Nawrocki, P. Antilogus, E. Boudinov, P. Kubinec, Lydia Roos, Josef Strauss, C. Joram, J. Drees, V. Chabaud, M. Espirito Santo, W. Venus, Nikita Smirnov, G. Transtromer, J. Krstic, R. Orava, A. Passeri, W. Krupinski, D. Vilanova, T. J. V. Bowcock, A. Trombini, T. L. Hessing, B. De Lotto, M. Pimenta, M. V. Castillo Gimenez, P. Poropat, F. Martinez-Vidal, L. Serbelloni, Gianni Zumerle, H. Palka, F. Fulda-Quenzer, I. Stavitski, C. Weiser, V. Gracco, D. Zavrtanik, A. Onofre, A. Galloni, S. O. Holmgren, G. Eigen, G. Piana, Clara Troncon, M. Bigi, Evangelos Gazis, O. Botner, R. Moeller, P. Bruckman, A. Seitz, M. Feindt, F. Pierre, Mogens Dam, Alexander Lincoln Read, C. Petridou, Paolo Morettini, Marc Besancon, K. Stevenson, G. Valenti, Rupert Leitner, G. Matthiae, M. Kaiser, P. Negri, P. Ferrari, L. S. Vertogradov, P. Seager, P. Rosinsky, S. Navas, C. Garcia, A. Sadovsky, L. K. Resvanis, Luc Pape, Anna Lipniacka, K. Rybicki, Andromachi Tsirou, P. Bambade, Z. Hajduk, P. Buschmann, R. Mc Kay, L. Di Ciaccio, Josef Hrubec, A. Andreazza, Massimo Caccia, M. Gandelman, J. Dolbeau, Stefano Ragazzi, D. W. Lane, J. G. Loken, A. Grefrath, P. Beilliere, Manfred Krammer, Denis Gelé, T. Rovelli, P. V. Chliapnikov, W.S.C. Williams, Vladimir Nikolaenko, Chiara Mariotti, E. I. Rosenberg, L. M. Mundim, K. Kurvinen, D. Wicke, C. Martinez-Rivero, M. Michelotto, O. Smirnova, S. Hoorelbeke, Paolo Ronchese, N. J. Kjaer, T. Myklebust, P. Herquet, F. Barao, Andre Augustinus, J. P. Tavernet, A. Perrotta, G. Borisov, M. Baubillier, J. J. Hernandez, R. Gokieli, V. Ruhlmann-Kleider, R. Janik, P.S.L. Booth, C. De La Vaissiere, Fabrizio Parodi, K. D. Brand, T. Burgsmueller, N. I. Zimin, V. Hedberg, P. Goncalves, P. Sponholz, Ch. Jarlskog, A. M. Segar, M. A. Winter, G. Crosetti, Evgueni Vlasov, F. Scuri, G. Ekspong, M. Verlato, C. Green, G. Tristram, A. Stocchi, L. Tortora, Manolis Dris, D. Bertini, R. Jacobsson, F. J. Harris, S. Todorova, A. M. Zaitsev, Alexander Vodopyanov, R. Keranen, Francisco Matorras, T. Ekelof, S. Meyer, Charles Bricman, M. R. Monge, J. D. Durand, C. Kreuter, V. Chorowicz, F. Terranova, J. H. Cowell, P. P. Allport, K. Papageorgiou, A. Tonazzo, A. Baroncelli, Ulrich Parzefall, J. Van Eldik, Heinz Pernegger, K. Doroba, L. Bugge, A. G. Olshevski, L. Chaussard, P. Van Dam, M. Bozzo, F. Formenti, F. Cao, V.A. Uvarov, G. Mc Pherson, V. Lepeltier, A. Sheridan, M. Reale, L. G. Tkatchev, J. Garcia, G. Sciolla, W. Da Silva, F. R. Cavallo, W. Kucewicz, S. Hahn, F. Carena, A. Tilquin, W. A. Mitaroff, J. M. Heuser, J. Yi, J. W. Lamsa, A. J. Camacho Rozas, E. Graziani, Y. Arnoud, M. Blume, I. A. Tyapkin, R. Henriques, V. Obraztsov, U. Schwickerath, L. Jonsson, P. Niss, D. Z. Toet, B. Bouquet, J. M. Brunet, A. Deghorain, W. Neumann, A. Markou, W. De Boer, J. Cuevas Maestro, T. Todorov, M. Davenport, Th. D. Papadopoulou, B. Muryn, P. Gris, T. G M Malmgren, H. Wahlen, G. Polok, D. Fassouliotis, M. Pernicka, C. Caso, A. Petrolini, A. Van Lysebetten, Sandor Czellar, A. Zalewska, Martijn Mulders, M. Mazzucato, R. C. Shellard, D. Bertrand, Jiri Chudoba, E. Vallazza, P. Chochula, Ugo Amaldi, H. Mueller, W. T. Meyer, D. Loukas, F. L. Navarria, O. Yushchenko, W. Oberschulte-Beckmann, Jesus Marco, G. Lenzen, P. Zalewski, M. Begalli, V. Kostioukhine, M. Koratzinos, M. Nikolenko, S. Katsanevas, M. Wielers, R. Sekulin, A. M. Wetherell, I. Kronkvist, Yu. Gouz, G. Sajot, Martino Margoni, Jacques Lemonne, K. H. Becks, M. Battaglia, E. Fokitis, P. Jonsson, G. Gopal, C. Matteuzzi, C. De Clercq, R. A. Brenner, J. N. Jackson, O. Kouznetsov, G. Cosme, A. C. Benvenuti, T. A. Filippas, D. Stampfer, P. B. Renton, F. Cossutti, J. P. Gerber, S. Squarcia, G. Vegni, G. Barbiellini, M. Regler, W. J. Murray, Pawel Jalocha, Barry King, E. Spiriti, T. Moa, Cristian Stanescu, P. Branchini, Laurent Mirabito, H. Schneider, Juergen Thomas, Paul Baillon, F. Zach, G. Jarlskog, S. Fichet, G. Orazi, J. C. Marin, E. Migliore, H. Herr, Stanislav Nemecek, M. Szeptycka, J. Medbo, N. Pukhaeva, M. Witek, F. Hahn, R. Frühwirth, J. Timmermans, J. Dahm, R. Strub, E. C. Katsoufis, Amiran Tomaradze, Y. Sacquin, Rosy Nicolaidou, Yu. Sedykh, Ugo Gasparini, A. Djannati, O. Ullaland, Marta Calvi, M. A. Bizouard, Kathy Huet, Valeriy Pozdniakov, Vincenzo Canale, Geoffrey Smith, F. Richard, M. J. Bates, K. Muenich, T. Podobnik, G. Della Ricca, G. W. Van Apeldoorn, O. Solovianov, C. K. Legan, M. Bonesini, W. Bonivento, L. Ventura, K. Yip, J. Guy, Louis Lyons, C. Gaspar, Toralf Bernhard Skaali, P. Andersson, P. Roudeau, A. Sokolov, Marcos Dracos, Tim Adye, F. Verbeure, B. Marechal, R. Mc Nulty, J. R. Mahon, B. Stugu, Christine Kourkoumelis, J. P. Engel, Carlos Lacasta, M. Tyndel, S. Stanic, A. B. Fenyuk, G. C. Zucchelli, A. Pullia, G. J. Barker, Mingshui Chen, G. Grosdidier, G. A. Chelkov, T. Wlodek, R. Ehret, Paul Dauncey, N. Demaria, P. Paganini, G. Damgaard, H. Klein, A. Hallgren, Tiziano Camporesi, K. Osterberg, P. J. Holt, N. G. Redaelli, F. Bianchi, Paolo Checchia, Ph. Gavillet, L. Lanceri, C. Walck, R. Reinhardt, Yu.A. Khokhlov, S. Cabrera, J. MacNaughton, A. Normand, M. Szczekowski, M. Nieuwenhuizen, Flavio Fontanelli, B. Erzen, R. Silvestre, M. Canepa, U. Mjoernmark, Pierre Billoir, Klaus Moenig, M. A. Houlden, A. Romero, T. Spassov, J. E. Augustin, M. Berggren, E. Higon, M. Chapkin, Vaclav Vrba, Hans Dijkstra, H. B. Crawley, C. Bosio, A. Nygren, H. T. Phillips, Vladimir Cindro, S. Almehed, L. Peralta, R. Sosnowski, B. Loerstad, N. N. Khovanski, R. Pain, J. P. Laugier, J. Libby, Ole Røhne, B. A. Khomenko, P. Langefeld, L. Gorn, C. Bourdarios, A. Leisos, G. Maehlum, M. Gunther, O. Klapp, Borge Svane Nielsen, S. De Brabandere, Chiara Meroni, A. Maio, Peter Kluit, M. S. Bilenky, L.J. Carroll, P. N. Ratoff, P.A. Fischer, T. Lesiak, F. Simonetto, F. Kapusta, G. Leder, B. Åsman, V. Lefebure, D. Crennell, F. Mandl, G. Smadja, E. Cortina, B. Jean-Marie, I. Lippi, L. Vitale, J. H. Wickens, Marco Paganoni, D. Radojicic, D. Souza-Santos, P. Lutz, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Institut de Physique Nucléaire de Lyon (IPNL), 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), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), 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), Laboratoire de l'Accélérateur Linéaire (LAL), 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), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-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), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, LEP (IHEF, IoP, FNWI), 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), 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), 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), 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), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), UCL - SC/PHYS - Département de physique, 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), BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, and Vitale, Lorenzo
Subjects: Nuclear and High Energy Physics, Meson, Electron–positron annihilation, D-STAR, Hadron, ANNIHILATIONS, Partícules (Física nuclear), QUARK FRAGMENTATION, HADRONS, MESONS, Nuclear physics, Angular distribution, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Matrix element, Spin density, Detectors de radiació, DELPHI, Physics, LARGE ELECTRON POSITRON COLLIDER, PARTICLE PHYSICS, Mass spectrum, Atomic physics, Particle Physics - Experiment
Abstract: The spin density matrix elements for the rho(0), K-*0(892) and phi produced in hadronic Z(0) decays are measured in the DELPHI detector. There is no evidence for spin alignment of the K-*0(892) and phi, in the region x(p) less than or equal to 0.3 (x(p) = p/p(beam)), where rho(00) = 0.33 +/- 0.05 and rho(00) = 0.30 +/- 0.04, respectively. In the fragmentation region, x(p) greater than or equal to 0.4, there is some indication for spin alignment of the rho(0) and K-*0(892), since rho(00) = 0.43 +/- 0.05 and rho(00) = 0.46 +/- 0.08, respectively. These values are compared with those found in meson-induced hadronic reactions. For the phi, rho(00) = 0.30 +/- 0.04 for x(p) greater than or equal to 0.4 and 0.55 +/- 0.10 for x(p) greater than or equal to 0.7. The off-diagonal spin density matrix element rho(1-1) is consistent with zero in all cases. (C) 1997 Published by Elsevier Science B.V.
Published: 1997
Full Text: View/download PDF

22. Measurement and interpretation of the $W$-pair cross-section in $e^+e^-$ interactions at 161 GeV

Author: J. D. Durand, Norbert Neumeister, A. Tonazzo, A. G. Olshevski, M. Merk, U. Schwickerath, A. Firestone, J. H. Cowell, S-O. Holmgren, Maria Roberta Monge, Tiziano Rovelli, D. Bertini, J. Masik, A. Zalewska, Stefano Ragazzi, W. T. Meyer, Jacques Lemonne, Tiziano Camporesi, G. Cosme, Klaus Hamacher, P. Pages, B. Dalmagne, F. Formenti, F. Cao, P. J. Holt, N. G. Redaelli, Marco Bozzo, T. Wlodek, P. Frenkiel, Laurent Mirabito, I. A. Tyapkin, Petar Adzic, F. Waldner, Andrea Perrotta, R. Mc Nulty, B. Jean-Marie, D. Knoblauch, M. Pegoraro, T. Brenke, M. Zito, C. Walck, R. Reinhardt, Yu.A. Khokhlov, A. Normand, C. Weiser, Z. Krumstein, S. Gumenyuk, K. Grzelak, Luis Peralta, F. Kapusta, Luc Pape, W. Neumann, T. Bolognese, I. V. Ajinenko, A. Ferrer, Martijn Mulders, O. Kouznetsov, J. M. Heuser, L. Tortora, Allan Hallgren, A. Pullia, A. Konopliannikov, Chiara Mariotti, P. Kubinec, K. Stevenson, J. P. Tavernet, Mingshui Chen, T. Tabarelli, F. J. Harris, F. Terranova, C. Vander Velde, H. Palka, S. Hahn, Francesca Romana Cavallo, Tord Ekelof, M. L. Andrieux, M. Baubillier, A. De Min, C. De Clercq, W. J. Murray, A. Galloni, K. Muenich, O. Sahr, Piotr Zalewski, A. M. Zaitsev, Alexander Vodopyanov, C. Kreuter, P. Buschmann, B. Muryn, Martino Margoni, E. Fokitis, R. Mc Kay, Carlos Lacasta, Krzysztof A. Rybicki, M. Barbi, P. Rebecchi, L. S. Vertogradov, Louis Lyons, A. Van Lysebetten, H. Rahmani, A. Passeri, T. J. V. Bowcock, T. L. Hessing, J.D. Richardson, F. Bianchi, O. Podobrin, M. S. Bilenky, Sandor Czellar, G. Polok, A. Andreazza, Yu. Gouz, Ernesto Migliore, J. P. Engel, S. Stanic, M. V. Castillo Gimenez, G. A. Chelkov, P. Weilhammer, R. Lauhakangas, M. Feindt, S. Sánchez Navas, P. Negri, D. Fassouliotis, P. Ferrari, M. Bonesini, A. Trombini, G. Sajot, Anna Lipniacka, Y. Sacquin, K. D. Brand, Marek Szczekowski, E. Boudinov, N. I. Zimin, J. W. Lamsa, M. Blume, F. Barao, A. Deghorain, E. Higon, F. Scuri, A. M. Wetherell, W. Oberschulte-Beckmann, R. C. Shellard, G. Orazi, Ugo Gasparini, K. A. Drees, Richard Jacobsson, A. Petrolini, B. De Lotto, G. Crosetti, Evgueni Vlasov, Ariella Cattai, F. Ledroit, J. Fuster, D. J. Holthuizen, Ugo Amaldi, W. De Boer, E. Zevgolatakos, G. Sciolla, R. Keranen, J. Dolbeau, P. Bambade, P.S.L. Booth, O. Ullaland, Leif J. Jönsson, Francisco Matorras, D. Souza-Santos, M. Tyndel, E. K. Johansson, L. Lanceri, B. Loerstad, P. Herquet, R. Contri, T. Burgsmueller, Andrei Nomerotski, W. Van Doninck, Demetrios Loukas, A. Djannati, Kathy Huet, L. Di Ciaccio, Josef Hrubec, A. M. Segar, L.J. Carroll, J. Medbo, H. Klein, J. Cuevas Maestro, Oxana Smirnova, T. Todorov, M. Wielers, J. M. Lopez, K. Karafasoulis, K. Osterberg, Steinar Stapnes, N. Vassilopoulos, Paolo Morettini, O. Solovianov, J. Guy, Paul Dauncey, N. Demaria, A. Di Diodato, Fabio Cossutti, J. G. Loken, S. Hoorelbeke, G. Valenti, Paolo Ronchese, V.A. Uvarov, F. Fontanelli, Tim Adye, Charles Bricman, B. Franek, M. L. Turluer, D. Reid, O. Klapp, W. Kucewicz, Valeriy Pozdniakov, R. Alemany, Per Jönsson, W. Bonivento, H. Herr, L. G. Tkatchev, A. Seitz, P. Sponholz, Göran Jarlskog, M. Berggren, Kerem Cankocak, G. Damgaard, A. Grefrath, C. De Saint-Jean, P. Beilliere, C. Defoix, Borge Svane Nielsen, Marc Winter, Robert S. Brown, Manolis Dris, V. Malychev, N. J. Kjaer, A. Sokolov, T. Lesiak, F. Fulda-Quenzer, R.A Brenner, F. Pierre, G. D. Alekseev, I. Stavitski, Wolfgang Adam, P. Roudeau, S. De Brabandere, C. Troncon, Ch. Jarlskog, P. Abreu, C. Joram, M. A. Bizouard, Paul Baillon, Vincent Hedberg, D. W. Lane, A. G. Frodesen, T. G M Malmgren, H. Wahlen, P. Goncalves, Gianni Zumerle, W. D. Apel, Krzysztof Nawrocki, L. Bugge, Lydia Roos, E. Graziani, O. Yushchenko, D. Zontar, Alexander Lincoln Read, M. Szeptycka, Marc Besancon, Konstantinos Papageorgiou, J. Baudot, J. Garcia, R. Sekulin, J. M. Brunet, F. Simonetto, Krzysztof Doroba, D. Gele, J. Drees, A. J. Camacho Rozas, D. Z. Toet, C. Green, G. Tristram, M. Verlato, G. Ekspong, J. Van Eldik, P. Bruckman, L.N. Gerdyukov, Heinz Pernegger, Alberto Benvenuti, O. Barring, Evangelos Gazis, A. Baroncelli, I. Ripp, P. Siegrist, G. Leder, Yu. Belokopytov, Z. Hajduk, J. N. Jackson, R. Janik, K. Kurvinen, V. Gracco, B. Åsman, J-C. Marin, T. Moa, T. S. Hill, G. Maehlum, R. Henriques, K. H. Becks, E. Vallazza, Peter Kluit, Maciej Górski, J.R. Mahon, P. Van Dam, Patrick Jarry, G. Rinaudo, J. Salt, J. Rames, Guy Wilkinson, M. Dracos, L. Chaussard, R. Gokieli, V. Lefebure, M. Gunther, P. Poropat, Andromachi Tsirou, P. N. Ratoff, Juan Abel Barrio, M. Mc Cubbin, K. Hultqvist, Rafael Marco, K. Woschnagg, Maria Elena Pol, P. A. Fischer, Juergen Thomas, D. Crennell, Andre Augustinus, W. Krupinski, P. Gunnarsson, Spyros Tzamarias, S. Katsanevas, A. Klovning, Amiran Tomaradze, P. Kokkinias, Ph. Charpentier, C. De La Vaissiere, Dietrich Liko, P. Privitera, G. Smadja, B. Golob, Rupert Leitner, M. Battaglia, G. Piana, G. Matthiae, U. Mjoernmark, C. Bosio, D. Y. Bardin, M. Karlsson, S. Simonetti, P. V. Chliapnikov, G. Gopal, M. Begalli, D. Bertrand, V. Obraztsov, B. Erzen, H. J. Hilke, A. Markou, J. J. Hernandez, T. Buran, Markus Elsing, G. W. Van Apeldoorn, Chariclia Petridou, L. De Paula, E. Falk, C. K. Legan, Jiri Chudoba, M. Davenport, R. Silvestre, W.S.C. Williams, P. Antilogus, H. T. Phillips, Vladimir Cindro, Sandra Amato, A. Tilquin, S. Todorova, D. Vilanova, Pawel Jalocha, Barry King, Klaus Moenig, Fabrizio Parodi, C. Gaspar, A. Maio, V. Ruhlmann-Kleider, Branislav Sitar, T. A. Filippas, K. Belous, M. J. Bates, M. Reale, L. Serbelloni, M. A. Houlden, S. Marti i Garcia, L. Ventura, E. Cortina, I. Lippi, K. Yip, D Gamba, E. Spiriti, M. Regler, Daniel Treille, M. Bigi, R. Frühwirth, S. Cabrera, R. Lindner, Imad Baptiste Laktineh, J. H. Wickens, S. Squarcia, Toralf Bernhard Skaali, E. I. Rosenberg, T. Spassov, P. Delpierre, M. Witek, H. Saarikko, J. E. Augustin, D. Stampfer, V. Chorowicz, Marco Paganoni, J. Timmermans, J. Ridky, G. C. Zucchelli, F. Verbeure, I. Roncagliolo, P. Gris, Olga Botner, C. Parkes, Krzysztof Korcyl, G. Myatt, L. Vitale, D. Wicke, Javier Sánchez, P. Seager, Nikita Smirnov, Antonios Leisos, D. Radojicic, Georgios Fanourakis, C. Martinez-Rivero, G. Transtromer, Chiara Meroni, F. Carena, B. Stugu, V. Lepeltier, M. Gandelman, Carmen García, Christine Kourkoumelis, P. Lutz, E. Dahl-Jensen, R. Ehret, J. P. Gerber, P. Niss, Paolo Checchia, G. Vegni, Luiz Mundim, N. N. Khovanski, W. Bartl, R. Moeller, Reynald Pain, H. Foeth, V. Nikolaenko, L. K. Resvanis, Ph. Gavillet, M. Kaiser, M. Pernicka, Phillip Allport, M. Mazzucato, Jesus Marco, G. Lenzen, R. Strub, C. Caso, F. Martinez-Vidal, V. Kostioukhine, Massimo Caccia, M. Koratzinos, G. Della Ricca, J. MacNaughton, G. Barker, B. Tome, Th. D. Papadopoulou, P. Juillot, B. Ueberschaer, Claire Bourdarios, P. Paganini, P. B. Renton, J. P. Laugier, M. Nieuwenhuizen, A. De Angelis, P. Collins, Maurizio Canepa, J. Libby, F. Zach, M. Pimenta, Yu. Sedykh, Pierre Billoir, T. Podobnik, Daniel Bloch, B. A. Khomenko, A. Stocchi, S. S. Meyer, B. Marechal, E. C. Katsoufis, Ahmimed Ouraou, H. B. Crawley, Marta Calvi, Francesco Navarria, N. Pukhaeva, Vincenzo Canale, Geoffrey Smith, H. Mueller, P. Langefeld, Cristian Stanescu, P. Branchini, J. Dahm, L. Gorn, Vaclav Vrba, Hans Dijkstra, H. Schneider, W. Da Silva, W. A. Mitaroff, Mogens Dam, F. Richard, P. Chochula, C. Matteuzzi, S. Almehed, S. Fichet, R. Chierici, Mario Sannino, F. Hahn, R. Sosnowski, P. Vincent, F. Naraghi, R. Orava, D. Edsall, G. Grosdidier, Alessandra Romero, A. Ruiz, M. A E Schyns, A. Onofre, G. Eigen, B. Bouquet, Josef Strauss, V. Chabaud, W. Venus, R. Nicolaidou, D. Zavrtanik, I. Kronkvist, A. N. Sisakian, A. Sadovsky, Manfred Krammer, M. Michelotto, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), Laboratoire de l'Accélérateur Linéaire (LAL), 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), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), 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), 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 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), 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), 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), 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), 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), 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), Cossutti, F., DELLA RICCA, Giuseppe, Lanceri, Livio, Poropat, Paolo, Vitale, Lorenzo, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, UCL - SST/IRMP - Institut de recherche en mathématique et physique, LEP (IHEF, IoP, FNWI), Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G, Alemany, R, Allport, P, Almehed, S, Amaldi, U, Amato, S, Andreazza, A, Andrieux, M, Antilogus, P, Apel, W, Åsman, B, Augustin, J, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barbi, M, Bardin, D, Barker, G, Baroncelli, A, Barring, O, Barrio, J, Bartl, W, Bates, M, Battaglia, M, Baubillier, M, Baudot, J, Becks, K, Begalli, M, Beilliere, P, Belokopytov, Y, Belous, K, Benvenuti, A, Berggren, M, Bertini, D, Bertrand, D, Besancon, M, Bianchi, F, Bigi, M, Bilenky, M, Billoir, P, Bizouard, M, Bloch, D, Blume, M, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bourdarios, C, Bowcock, T, Bozzo, M, Branchini, P, Brand, K, Brenke, T, Brenner, R, Bricman, C, Brown, R, Bruckman, P, Brunei, J, Bugge, L, Buran, T, Burgsmueller, T, Buschmann, P, Cabrera, S, Caccia, M, Calvi, M, Camacho Rozas, A, Camporesi, T, Canale, V, Canepa, M, Cankocak, K, Cao, F, Carena, F, Carroll, L, Caso, C, Castillo Gimenez, M, Cattai, A, Cavallo, F, Chabaud, V, Charpentier, P, Chaussard, L, Checchia, P, Chelkov, G, Chen, M, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cindro, V, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Cowell, J, Crawley, H, Crennell, D, Crosetti, G, Cuevas Maestro, J, Czellar, S, Dahl-Jensen, E, Dahm, J, Dalmagne, B, Dam, M, Damgaard, G, Dauncey, P, Davenport, M, da Silva, W, Defoix, C, Deghorain, A, Delia Ricca, G, Delpierre, P, Demaria, N, de Angelis, A, de Boer, W, de Brabandere, S, de Clercq, C, de la Vaissiere, C, de Lotto, B, de Min, A, de Paula, L, de Saint-Jean, C, Dijkstra, H, di Ciaccio, L, di Diodato, A, Djannati, A, Dolbeau, J, Doroba, K, Dracos, M, Drees, J, Drees, K, Dris, M, Durand, J, Edsall, D, Ehret, R, Eigen, G, Ekelof, T, Ekspong, G, Elsing, M, Engel, J, Erzen, B, Falk, E, Fanourakis, G, Fassouliotis, D, Feindt, M, Ferrari, P, Ferrer, A, Fichet, S, Filippas, T, Firestone, A, Fischer, P, Foeth, H, Fokitis, E, Fontanelli, F, Formenti, F, Franek, B, Frenkiel, P, Frodesen, A, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Galloni, A, Gamba, D, Gandelman, M, Garcia, C, Garcia, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E, Gele, D, Gerber, J, Gerdyukov, L, Gokieli, R, Golob, B, Goncalves, P, Gopal, G, Gorn, L, Gorski, M, Gouz, Y, Gracco, V, Graziani, E, Green, C, Grefrath, A, Gris, P, Grosdidier, G, Grzelak, K, Gumenyuk, S, Gunnarsson, P, Gunther, M, Guy, J, Hahn, F, Hahn, S, Hajduk, Z, Hallgren, A, Hamacher, K, Harris, F, Hedberg, V, Henriques, R, Hernandez, J, Herquet, P, Herr, H, Hessing, T, Heuser, J, Higon, E, Hilke, H, Hill, T, Holmgren, S, Holt, P, Holthuizen, D, Hoorelbeke, S, Houlden, M, Hrubec, J, Huet, K, Hultqvist, K, Jackson, J, Jacobsson, R, Jalocha, P, Janik, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E, Jonsson, L, Jonsson, P, Joram, C, Juillot, P, Kaiser, M, Kapusta, F, Karafasoulis, K, Karlsson, M, Katsanevas, S, Katsoufis, E, Keranen, R, Khokhlov, Y, Khomenko, B, Khovanski, N, King, B, Kjaer, N, Klapp, O, Klein, H, Klovning, A, Kluit, P, Knoblauch, D, Kokkinias, P, Konopliannikov, A, Koratzinos, M, Korcyl, K, Kostioukhine, V, Kourkoumelis, C, Krammer, M, Kreuter, C, Kronkvist, I, Krumstein, Z, Krupinski, W, Kubinec, P, Kucewicz, W, Kurvinen, K, Lacasta, C, Laktineh, I, Lamsa, J, Lanceri, L, Lane, D, Langefeld, P, Laugier, J, Lauhakangas, R, Leder, G, Ledroit, F, Lefebure, V, Legan, C, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Libby, J, Liko, D, Lindner, R, Lipniacka, A, Lippi, I, Loerstad, B, Loken, J, Lopez, J, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Maehlum, G, Mahon, J, Maio, A, Malmgren, T, Malychev, V, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez-Rivero, C, Martinez-Vidal, F, Marti i Garcia, S, Masik, J, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Medbo, J, Merk, M, Meroni, C, Meyer, S, Meyer, W, Michelotto, M, Migliore, E, Mirabito, L, Mitaroff, W, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, M, Morettini, P, Mueller, H, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Naraghi, F, Navarria, F, Navas, S, Nawrocki, K, Negri, P, Neumann, W, Neumeister, N, Nicolaidou, R, Nielsen, B, Nieuwenhuizen, M, Nikolaenko, V, Niss, P, Nomerotski, A, Normand, A, Oberschulte-Beckmann, W, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Orazi, G, Osterberg, K, Ouraou, A, Paganini, P, Paganoni, M, Pages, P, Pain, R, Palka, H, Papadopoulou, T, Papageorgiou, K, Pape, L, Parkes, C, Parodi, F, Passeri, A, Pegoraro, M, Peralta, L, Pernegger, H, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H, Piana, G, Pierre, F, Pimenta, M, Podobnik, T, Podobrin, O, Pol, M, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Rames, J, Ratoff, P, Read, A, Reale, M, Rebecchi, P, Redaelli, N, Regler, M, Reid, D, Reinhardt, R, Renton, R, Resvanis, L, Richard, F, Richardson, J, Ridky, J, Rinaudo, G, Ripp, I, Romero, A, Roncagliolo, I, Ronchese, R, Roos, L, Rosenberg, E, Roudeau, P, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Y, Sadovsky, A, Sahr, O, Sajot, G, Salt, J, Sanchez, J, Sannino, M, Schneider, H, Schwickerath, U, Schyns, M, Sciolla, G, Scuri, F, Seager, P, Sedykh, Y, Segar, A, Seitz, A, Sekulin, R, Serbelloni, L, Shellard, R, Siegrist, P, Silvestre, R, Simonetti, S, Simonetto, F, Sisakian, A, Sitar, B, Skaali, T, Smadja, G, Smirnov, N, Smirnova, O, Smith, G, Sokolov, A, Solovianov, O, Sosnowski, R, Souza-Santos, D, Spassov, T, Spiriti, E, Sponholz, P, Squarcia, S, Stampfer, D, Stanescu, C, Stanic, S, Stapnes, S, Stavitski, I, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Tavernet, J, Terranova, F, Thomas, J, Tilquin, A, Timmermans, J, Tkatchev, L, Todorov, T, Todorova, S, Toet, D, Tomaradze, A, Tome, B, Tonazzo, A, Tortora, L, Transtromer, G, Treille, D, Tristram, G, Trombini, A, Troncon, C, Tsirou, A, Turluer, M, Tyapkin, I, Tyndel, M, Tzamarias, S, Ueberschaer, B, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, van Apeldoorn, G, van Dam, P, van Doninck, W, van Eldik, J, van Lysebetten, A, Vassilopoulos, N, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verlato, M, Vertogradov, L, Vilanova, D, Vincent, P, Vitale, L, Vlasov, E, Vodopyanov, A, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Weilhammer, P, Weiser, C, Wetherell, A, Wicke, D, Wickens, J, Wielers, M, Wilkinson, G, Williams, W, Winter, M, Witek, M, Wlodek, T, Woschnagg, K, Yip, K, Yushchenko, O, Zach, F, Zaitsev, A, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, N, Zito, M, Zontar, D, Zucchelli, G, and Zumerle, G
Subjects: COLLISIONS, Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, 01 natural sciences, BOSON MASS, ROOT-S=1.8 TEV, COUPLINGS, Partícules (Física nuclear), Standard Model, Interpretation (model theory), Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Detectors de radiació, DELPHI, Physics, Luminosity (scattering theory), 010308 nuclear & particles physics, LARGE ELECTRON POSITRON COLLIDER, Cross section (geometry), PARTICLE PHYSICS, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: In 1996 LEP ran at a centre-of-mass energy of 161~GeV, just above the threshold of W-pair production. DELPHI accumulated data corresponding to an integrated luminosity of $9.93 {\mathrm{~pb^{-1}}}$, and observed 29 events that are considered as candidates for W-pair production. From these, a cross-section for the doubly resonant $e^+e^-\to\mathrm{WW}$ process of $3.67~^{+0.97}_{-0.85} \pm 0.19{\mathrm{~pb}}$ has been measured. Within the Standard Model, this cross-section corresponds to a mass of the W-boson of ${\mathrm{80.40~\pm~0.44~(stat.)~\pm~0.09~(syst.) ~\pm 0.03~(LEP)~GeV}}/c^2$. Alternatively, if $m_{\mathrm{W}}$ is held fixed at its current value determined by other experiments, the observed cross-section is used to obtain limits on trilinear ${\mathrm{WWV (V \equiv \gamma, Z)}}$ couplings.
Published: 1997
Full Text: View/download PDF

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources

Refine your results

22 results on '"G. ORAZI"'

1. Measurement of V from the decay process →Dℓ

2. Search for R-parity violation with a coupling at GeV

3. Upper limit for the decay and measurement of the branching ratio

4. Determination of the e+e−→γγ(γ) cross-section at centre-of-mass energies ranging from 189 GeV to 202 GeV

5. Rapidity-rank structure of pairs in hadronic Z0 decays

6. Limits on the masses of supersymmetric particles at GeV

7. Search for SUSY with R-parity violating couplings at GeV

8. Determination of |Vub|/|Vcb| with DELPHI at LEP

9. Search for heavy stable and long-lived particles in e+e− collisions at GeV

10. Search for charginos in e+e− interactions at GeV

11. Measurement of the branching fraction

12. Λb polarization in Z0 decays at LEP

13. Search for chargino pair production in scenarios with gravitino LSP and stau NLSP at GeV at LEP

14. Measurement of the rate of events in hadronic Z decays and the extraction of the gluon splitting into

15. Measurement of inclusive ρ0, f0(980), f2(1270), K and f′2(1525) production in Z0 decays

16. Search for Leptoquarks and FCNC in e+e− annihilations at GeV

17. Search for charginos, neutralinos and gravitinos in e+e− interactions at GeV

18. Measurement of the e+e−→γγ(γ) cross section at the LEP energies

19. Search for Bs0- oscillations

20. Erratum

21. Measurement of the spin density matrix for the rho(0), K*(0)(892) and phi produced in Z(0) decays

22. Measurement and interpretation of the $W$-pair cross-section in $e^+e^-$ interactions at 161 GeV

Catalog

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Database

Publisher

22 results on '"G. ORAZI"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources