Search for charginos in e(+)e(-) interactions at root s=189 GeV

Abreu, P
Adam, W
Adye, T
Adzic, P
Ajinenko, I and
Albrecht, Z
Alderweireld, T
Alekseev, GD
Alemany, R and
Allmendinger, T
Allport, PP
Almehed, S
Amaldi, U and
Amapane, N
Amato, S
Anassontzis, EG
Andersson, P and
Andreazza, A
Andringa, S
Antilogus, P
Apel, WD
Arnoud, Y
and Asman, B
Augustin, JE
Augustinus, A
Baillon, P and
Bambade, P
Barao, F
Barbiellini, G
Barbier, R
Bardin, DY
and Barker, G
Baroncelli, A
Battaglia, M
Baubillier, M and
Becks, KH
Begalli, M
Behrmann, A
Beilliere, P and
Belokopytov, Y
Benekos, NC
Benvenuti, AC
Berat, C and
Berggren, M
Bertrand, D
Besancon, M
Bigi, M
Bilenky, MS
and Bizouard, MA
Bloch, D
Blom, HM
Bonesini, M and
Boonekamp, M
Booth, PSL
Borgland, AW
Borisov, G
Bosio, C
and Botner, O
Boudinov, E
Bouquet, B
Bourdarios, C and
Bowcock, TJV
Boyko, I
Bozovic, I
Bozzo, M
Bracko, M and
Branchini, P
Brenner, RA
Bruckman, P
Brunet, JM
Bugge, L
and Buran, T
Buschbeck, B
Buschmann, P
Cabrera, S and
Caccia, M
Calvi, M
Camporesi, T
Canale, V
Carena, F and
Carroll, L
Caso, C
Gimenez, MVC
Cattai, A
Cavallo, FR
and Chabaud, V
Charpentier, P
Checchia, P
Chelkov, GA and
Chierici, R
Chliapnikov, P
Chochula, P
Chorowicz, V and
Chudoba, J
Cieslik, K
Collins, P
Contri, R
Cortina, E
and Cosme, G
Cossutti, F
Crawley, HB
Crennell, D
Crepe,
S
Crosetti, G
Maestro, JC
Czellar, S
Davenport, M
Da
Silva, W
Della Ricca, G
Delpierre, P
Demaria, N
De
Angelis, A
De Boer, W
De Clercq, C
De Lotto, B
De Min, A
and De Paula, L
Dijkstra, H
Di Ciaccio, L
Dolbeau, J and
Doroba, K
Dracos, M
Drees, J
Dris, M
Duperrin, A and
Durand, JD
Eigen, G
Ekelof, T
Ekspong, G
Ellert, M and
Elsing, M
Engel, JP
Santo, ME
Fanourakis, G and
Fassouliotis, D
Fayot, J
Feindt, M
Ferrer, A and
Ferrer-Ribas, E
Ferro, F
Fichet, S
Firestone, A and
Flagmeyer, U
Foeth, H
Fokitis, E
Fontanelli, F
Franek, B
and Frodesen, AG
Fruhwirth, R
Fulda-Quenzer, F
Fuster, J and
Galloni, A
Gamba, D
Gamblin, S
Gandelman, M
Garcia, C
and Gaspar, C
Gaspar, M
Gasparini, U
Gavillet, P
Gazis,
EN
Gele, D
Geralis, T
Gerdyukov, L
Ghodbane, N
Gil,
I
Glege, F
Gokieli, R
Golob, B
Gomez-Ceballos, G and
Goncalves, P
Caballero, IG
Gopal, G
Gorn, L
Gouz, Y and
Gracco, V
Grahl, J
Graziani, E
Gris, P
Grosdidier, G and
Grzelak, K
Guy, J
Haag, C
Hahn, F
Hahn, S
Haider, S
and Hallgren, A
Hamacher, K
Hansen, J
Harris, FJ and
Hedberg, V
Heising, S
Hernandez, JJ
Herquet, P
Herr, H
and Hessing, TL
Heuser, JM
Higon, E
Holmgren, SO
Holt,
PJ
Hoorelbeke, S
Houlden, M
Hrubec, J
Huber, M
Huet,
K
Hughes, GJ
Hultqvist, K
Jackson, JN
Jacobsson, R and
Jalocha, P
Janik, R
Jarlskog, C
Jarlskog, G
Jarry, P and
Jean-Marie, B
Jeans, D
Johansson, EK
Jonsson, P
Joram, C
and Juillot, P
Jungermann, L
Kapusta, F
Karafasoulis, K and
Katsanevas, S
Katsoufis, EC
Keranen, R
Kernel, G and
Kersevan, BP
Khokhlov, Y
Khomenko, BA
Khovanski, NN and
Kiiskinen, A
King, B
Kinvig, A
Kjaer, NJ
Klapp, O and
Klein, H
Kluit, P
Kokkinias, P
Kostioukhine, V and
Kourkoumelis, C
Kouznetsov, O
Krammer, M
Kriznic, E and
Krumstein, Z
Kubinec, P
Kurowska, J
Kurvinen, K
Lamsa,
JW
Lane, DW
Laugier, JP
Lauhakangas, R
Leder, G and
Ledroit, F
Lefebure, V
Leinonen, L
Leisos, A
Leitner, R
and Lenzen, G
Lepeltier, V
Lesiak, T
Lethuillier, M and
Libby, J
Liebig, W
Liko, D
Lipniacka, A
Lippi, I and
Loerstad, B
Loken, JG
Lopes, JH
Lopez, JM and
Lopez-Fernandez, R
Loukas, D
Lutz, P
Lyons, L and
MacNaughton, J
Mahon, JR
Maio, A
Malek, A
Malmgren, TGM
and Maltezos, S
Malychev, V
Mandl, F
Marco, J
Marco, R
and Marechal, B
Margoni, M
Marin, JC
Mariotti, C
Markou,
A
Martinez-Rivero, C
Martinez-Vidal, F
Garcia, SMI and
Masik, F
Mastroyiannopoulos, N
Matorras, F
Matteuzzi, C and
Matthiae, G
Mazzucato, F
Mazzucato, M
Mc Cubbin, M
Mc
Kay, R
Mc Nulty, R
Mc Pherson, G
Meroni, C
Meyer, WT and
Migliore, E
Mirabito, L
Mitaroff, WA
Mjoernmark, U
Moa,
T
Moch, M
Moeller, R
Moenig, K
Monge, MR
Moraes, D
and Moreau, X
Morettini, P
Morton, G
Mueller, U
Muenich,
K
Mulders, M
Mulet-Marquis, C
Muresan, R
Murray, WJ and
Muryn, B
Myatt, G
Myklebust, T
Naraghi, F
Nassiakou, M
and Navarria, FL
Navas, S
Nawrocki, K
Negri, P
Neufeld,
N
Nicolaidou, R
Nielsen, BS
Niezurawski, P
Nikolenko, M
and Nomokonov, V
Nygren, A
Obraztsov, V
Olshevski, AG and
Onofre, A
Orava, R
Orazi, G
Osterberg, K
Ouraou, A and
Paganoni, M
Paiano, S
Pain, R
Paiva, R
Palacios, J and
Palka, H
Papadopoulou, TD
Pape, L
Parkes, C
Parodi, F
and Parzefall, U
Passeri, A
Passon, O
Pavel, T
Pegoraro,
M
Peralta, L
Pernicka, M
Perrotta, A
Petridou, C and
Petrolini, A
Phillips, HT
Pierre, F
Pimenta, M
Piotto, E
and Podobnik, T
Pol, ME
Polok, G
Poropat, P
Pozdniakov,
V
Privitera, P
Pukhaeva, N
Pullia, A
Radojicic, D and
Ragazzi, S
Rahmani, H
Rames, J
Ratoff, PN
Read, AL and
Rebecchi, P
Redaelli, NG
Regler, M
Rehn, J
Reid, D and
Reinhardt, R
Renton, PB
Resvanis, LK
Richard, F
Ridky, J
and Rinaudo, G
Ripp-Baudot, I
Rohne, O
Romero, A and
Ronchese, P
Rosenberg, EI
Rosinsky, P
Roudeau, P and
Rovelli, T
Royon, C
Ruhlmann-Kleider, V
Ruiz, A and
Saarikko, H
Sacquin, Y
Sadovsky, A
Sajot, G
Salt, J and
Sampsonidis, D
Sannino, M
Schwemling, P
Schwering, B and
Schwickerath, U
Scuri, F
Seager, P
Sedykh, Y
Segar, AM
and Seibert, N
Sekulin, R
Shellard, RC
Siebel, M
Simard,
L
Simonetto, F
Sisakian, AN
Smadja, G
Smirnov, N and
Smirnova, O
Smith, GR
Sokolov, A
Sopczak, A
Sosnowski, R
and Spassov, T
Spiriti, E
Squarcia, S
Stanescu, C and
Stanic, S
Stanitzki, M
Stevenson, K
Stocchi, A
Strauss,
J
Strub, R
Stugu, B
Szczekowski, M
Szeptycka, M and
Tabarelli, T
Taffard, A
Tchikilev, O
Tegenfeldt, F and
Terranova, F
Thomas, J
Timmermans, J
Tinti, N
Tkatchev,
LG
Tobin, M
Todorova, S
Tomaradze, A
Tome, B and
Tonazzo, A
Tortora, L
Tortosa, P
Transtromer, G
Treille,
D
Tristram, G
Trochimczuk, M
Troncon, C
Turluer, ML and
Tyapkin, IA
Tyapkin, P
Tzamarias, S
Ullaland, O
Uvarov,
V
Valenti, G
Vallazza, E
Vander Velde, C
Van Dam, P and
Van den Boeck, W
Van Doninck, WK
Van Eldik, J
Van
Lysebetten, A
van Remortel, N
Van Vulpen, I
Vegni, G and
Ventura, L
Venus, W
Verbeure, F
Verdier, P
Verlato, M
and Vertogradov, LS
Verzi, V
Vilanova, D
Vitale, L and
Vlasov, E
Vodopyanov, AS
Voulgaris, G
Vrba, V
Wahlen, H
and Walck, C
Washbrook, AJ
Weiser, C
Wicke, D
Wickens,
JH
Wilkinson, GR
Winter, M
Witek, M
Wolf, G
Yi, J
and Yushchenko, O
Zalewska, A
Zalewski, P
Zavrtanik, D and
Zevgolatakos, E
Zimin, NI
Zintchenko, A
Zoller, P and
Zucchelli, GC
Zumerle, G
DELPHI Collaboration

Search for charginos in e(+)e(-) interactions at root s=189 GeV

Authors: P Abreu Adam, W Adye, T Adzic, P Ajinenko, I and Albrecht, Z Alderweireld, T Alekseev, GD Alemany, R and Allmendinger, T Allport, PP Almehed, S Amaldi, U and Amapane, N Amato, S Anassontzis, EG Andersson, P and Andreazza, A Andringa, S Antilogus, P Apel, WD Arnoud, Y and Asman, B Augustin, JE Augustinus, A Baillon, P and Bambade, P Barao, F Barbiellini, G Barbier, R Bardin, DY and Barker, G Baroncelli, A Battaglia, M Baubillier, M and Becks, KH Begalli, M Behrmann, A Beilliere, P and Belokopytov, Y Benekos, NC Benvenuti, AC Berat, C and Berggren, M Bertrand, D Besancon, M Bigi, M Bilenky, MS and Bizouard, MA Bloch, D Blom, HM Bonesini, M and Boonekamp, M Booth, PSL Borgland, AW Borisov, G Bosio, C and Botner, O Boudinov, E Bouquet, B Bourdarios, C and Bowcock, TJV Boyko, I Bozovic, I Bozzo, M Bracko, M and Branchini, P Brenner, RA Bruckman, P Brunet, JM Bugge, L and Buran, T Buschbeck, B Buschmann, P Cabrera, S and Caccia, M Calvi, M Camporesi, T Canale, V Carena, F and Carroll, L Caso, C Gimenez, MVC Cattai, A Cavallo, FR and Chabaud, V Charpentier, P Checchia, P Chelkov, GA and Chierici, R Chliapnikov, P Chochula, P Chorowicz, V and Chudoba, J Cieslik, K Collins, P Contri, R Cortina, E and Cosme, G Cossutti, F Crawley, HB Crennell, D Crepe, S Crosetti, G Maestro, JC Czellar, S Davenport, M Da Silva, W Della Ricca, G Delpierre, P Demaria, N De Angelis, A De Boer, W De Clercq, C De Lotto, B De Min, A and De Paula, L Dijkstra, H Di Ciaccio, L Dolbeau, J and Doroba, K Dracos, M Drees, J Dris, M Duperrin, A and Durand, JD Eigen, G Ekelof, T Ekspong, G Ellert, M and Elsing, M Engel, JP Santo, ME Fanourakis, G and Fassouliotis, D Fayot, J Feindt, M Ferrer, A and Ferrer-Ribas, E Ferro, F Fichet, S Firestone, A and Flagmeyer, U Foeth, H Fokitis, E Fontanelli, F Franek, B and Frodesen, AG Fruhwirth, R Fulda-Quenzer, F Fuster, J and Galloni, A Gamba, D Gamblin, S Gandelman, M Garcia, C and Gaspar, C Gaspar, M Gasparini, U Gavillet, P Gazis, EN Gele, D Geralis, T Gerdyukov, L Ghodbane, N Gil, I Glege, F Gokieli, R Golob, B Gomez-Ceballos, G and Goncalves, P Caballero, IG Gopal, G Gorn, L Gouz, Y and Gracco, V Grahl, J Graziani, E Gris, P Grosdidier, G and Grzelak, K Guy, J Haag, C Hahn, F Hahn, S Haider, S and Hallgren, A Hamacher, K Hansen, J Harris, FJ and Hedberg, V Heising, S Hernandez, JJ Herquet, P Herr, H and Hessing, TL Heuser, JM Higon, E Holmgren, SO Holt, PJ Hoorelbeke, S Houlden, M Hrubec, J Huber, M Huet, K Hughes, GJ Hultqvist, K Jackson, JN Jacobsson, R and Jalocha, P Janik, R Jarlskog, C Jarlskog, G Jarry, P and Jean-Marie, B Jeans, D Johansson, EK Jonsson, P Joram, C and Juillot, P Jungermann, L Kapusta, F Karafasoulis, K and Katsanevas, S Katsoufis, EC Keranen, R Kernel, G and Kersevan, BP Khokhlov, Y Khomenko, BA Khovanski, NN and Kiiskinen, A King, B Kinvig, A Kjaer, NJ Klapp, O and Klein, H Kluit, P Kokkinias, P Kostioukhine, V and Kourkoumelis, C Kouznetsov, O Krammer, M Kriznic, E and Krumstein, Z Kubinec, P Kurowska, J Kurvinen, K Lamsa, JW Lane, DW Laugier, JP Lauhakangas, R Leder, G and Ledroit, F Lefebure, V Leinonen, L Leisos, A Leitner, R and Lenzen, G Lepeltier, V Lesiak, T Lethuillier, M and Libby, J Liebig, W Liko, D Lipniacka, A Lippi, I and Loerstad, B Loken, JG Lopes, JH Lopez, JM and Lopez-Fernandez, R Loukas, D Lutz, P Lyons, L and MacNaughton, J Mahon, JR Maio, A Malek, A Malmgren, TGM and Maltezos, S Malychev, V Mandl, F Marco, J Marco, R and Marechal, B Margoni, M Marin, JC Mariotti, C Markou, A Martinez-Rivero, C Martinez-Vidal, F Garcia, SMI and Masik, F Mastroyiannopoulos, N Matorras, F Matteuzzi, C and Matthiae, G Mazzucato, F Mazzucato, M Mc Cubbin, M Mc Kay, R Mc Nulty, R Mc Pherson, G Meroni, C Meyer, WT and Migliore, E Mirabito, L Mitaroff, WA Mjoernmark, U Moa, T Moch, M Moeller, R Moenig, K Monge, MR Moraes, D and Moreau, X Morettini, P Morton, G Mueller, U Muenich, K Mulders, M Mulet-Marquis, C Muresan, R Murray, WJ and Muryn, B Myatt, G Myklebust, T Naraghi, F Nassiakou, M and Navarria, FL Navas, S Nawrocki, K Negri, P Neufeld, N Nicolaidou, R Nielsen, BS Niezurawski, P Nikolenko, M and Nomokonov, V Nygren, A Obraztsov, V Olshevski, AG and Onofre, A Orava, R Orazi, G Osterberg, K Ouraou, A and Paganoni, M Paiano, S Pain, R Paiva, R Palacios, J and Palka, H Papadopoulou, TD Pape, L Parkes, C Parodi, F and Parzefall, U Passeri, A Passon, O Pavel, T Pegoraro, M Peralta, L Pernicka, M Perrotta, A Petridou, C and Petrolini, A Phillips, HT Pierre, F Pimenta, M Piotto, E and Podobnik, T Pol, ME Polok, G Poropat, P Pozdniakov, V Privitera, P Pukhaeva, N Pullia, A Radojicic, D and Ragazzi, S Rahmani, H Rames, J Ratoff, PN Read, AL and Rebecchi, P Redaelli, NG Regler, M Rehn, J Reid, D and Reinhardt, R Renton, PB Resvanis, LK Richard, F Ridky, J and Rinaudo, G Ripp-Baudot, I Rohne, O Romero, A and Ronchese, P Rosenberg, EI Rosinsky, P Roudeau, P and Rovelli, T Royon, C Ruhlmann-Kleider, V Ruiz, A and Saarikko, H Sacquin, Y Sadovsky, A Sajot, G Salt, J and Sampsonidis, D Sannino, M Schwemling, P Schwering, B and Schwickerath, U Scuri, F Seager, P Sedykh, Y Segar, AM and Seibert, N Sekulin, R Shellard, RC Siebel, M Simard, L Simonetto, F Sisakian, AN Smadja, G Smirnov, N and Smirnova, O Smith, GR Sokolov, A Sopczak, A Sosnowski, R and Spassov, T Spiriti, E Squarcia, S Stanescu, C and Stanic, S Stanitzki, M Stevenson, K Stocchi, A Strauss, J Strub, R Stugu, B Szczekowski, M Szeptycka, M and Tabarelli, T Taffard, A Tchikilev, O Tegenfeldt, F and Terranova, F Thomas, J Timmermans, J Tinti, N Tkatchev, LG Tobin, M Todorova, S Tomaradze, A Tome, B and Tonazzo, A Tortora, L Tortosa, P Transtromer, G Treille, D Tristram, G Trochimczuk, M Troncon, C Turluer, ML and Tyapkin, IA Tyapkin, P Tzamarias, S Ullaland, O Uvarov, V Valenti, G Vallazza, E Vander Velde, C Van Dam, P and Van den Boeck, W Van Doninck, WK Van Eldik, J Van Lysebetten, A van Remortel, N Van Vulpen, I Vegni, G and Ventura, L Venus, W Verbeure, F Verdier, P Verlato, M and Vertogradov, LS Verzi, V Vilanova, D Vitale, L and Vlasov, E Vodopyanov, AS Voulgaris, G Vrba, V Wahlen, H and Walck, C Washbrook, AJ Weiser, C Wicke, D Wickens, JH Wilkinson, GR Winter, M Witek, M Wolf, G Yi, J and Yushchenko, O Zalewska, A Zalewski, P Zavrtanik, D and Zevgolatakos, E Zimin, NI Zintchenko, A Zoller, P and Zucchelli, GC Zumerle, G DELPHI Collaboration
Publication date: 1 January 2000
Publisher

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 greater than or equal to 1. (C) 2000 Elsevier Science B.V. All rights reserved

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