@article{3053869, title = "Limits on the masses of supersymmetric particles at root s=189 GeV", author = "Abreu, P and Adam, W and Adye, T and Adzic, P and Ajinenko, I and and Albrecht, Z and Alderweireld, T and Alekseev, GD and Alemany, R and and Allmendinger, T and Allport, PP and Almehed, S and Amaldi, U and and Amapane, N and Amato, S and Anassontzis, EG and Andersson, P and and Andreazza, A and Andringa, S and Antilogus, P and Apel, WD and Arnoud, Y and and Asman, B and Augustin, JE and Augustinus, A and Baillon, P and and Ballestrero, A and Bambade, P and Barao, F and Barbiellini, G and and Barbier, R and Bardin, DY and Barker, G and Baroncelli, A and Battaglia, and M and Baubillier, M and Becks, KH and Begalli, M and Behrmann, A and and Beilliere, P and Belokopytov, Y and Benekos, NC and Benvenuti, AC and and Berat, C and Berggren, M and Berntzon, L and Bertrand, D and Besancon, M and and Bilenky, MS and Bizouard, MA and Bloch, D and Blom, HM and Bonesini, and M and Boonekamp, M and Booth, PSL and Borisov, G and Bosio, C and and Botner, O and Boudinov, E and Bouquet, B and Bourdarios, C and Bowcock, and TJV and Boyko, I and Bozovic, I and Bozzo, M and Bracko, M and and Branchini, P and Brenner, RA and Bruckman, P and Brunet, JM and Bugge, L and and Buran, T and Buschbeck, B and Buschmann, P and Cabrera, S and and Caccia, H and Calvi, M and Camporesi, T and Canale, V and Carena, F and and Carroll, L and Caso, C and Gimenez, MVC and Cattai, A and Cavallo, FR and and Charpentier, P and Checchia, P and Chelkov, GA and Chierici, R and and Chliapnikov, P and Chochula, P and Chorowicz, V and Chudoba, J and and Cieslik, K and Collins, P and Contri, R and Cortina, E and Cosme, G and and Cossutti, F and Costa, M and Crawley, HB and Crennell, D and Crosetti, G and and Maestro, JC and Czeller, S and D'Hondt, J and Dalmau, J and and Davenport, M and Da Silva, W and Della Ricca, G and Delpierre, P and and Demaria, N and De Angelis, A and De Boer, W and De Clercq, C and De and Lotto, B and De Min, A and De Paula, L and Dijkstra, H and Di Ciaccio, L and and Dolbeau, J and Doroba, K and Dracos, M and Drees, J and Dris, M and and Eigen, G and Ekelof, T and Ellert, M and Elsing, M and Engel, JP and and Santo, ME and Fanourakis, G and Fassouliotis, D and Feindt, M and and Fernandez, J and Ferrer, A and Ferrer-Ribas, E and Ferro, F and and Firestone, A and Flagmeyer, U and Foeth, H and Fokitis, E and and Fontanelli, F and Franek, B and Frodesen, AG and Fruhwirth, R and and Fulda-Quenzer, F and Fuster, J and Galloni, A and Gamba, D and Gamblin, and S and Gandelman, V and Garcia, C and Gaspar, C and Gaspar, M and and Gasparini, U and Gavillet, P and Gazis, EN and Gele, D and Geralis, T and and Gerdyukov, L and Ghodbane, N and Gil, I and Glege, F and Gokieli, R and and Golob, B and Gomez-Ceballos, G and Goncalves, P and Caballero, IG and and Gopal, G and Gorn, L and Gouz, Y and Gracco, V and Grahl, J and and Graziani, E and Gris, P and Grosdidier, G and Grzelak, K and Guy, J and and Haag, C and Hahn, F and Hahn, S and Haider, S and Hallgren, A and and Hamacher, K and Hansen, J and Harris, FJ and Hauler, F and Hedberg, V and and Heising, S and Hernandez, JJ and Herquet, P and Herr, H and Higon, E and and Holmgren, SO and Holt, PJ and Hoorelbeke, S and Houlden, M and and Hrubec, J and Huber, M and Hughes, GJ and Hultqvist, K and Jackson, JN and and Jacobsson, R and Jalocha, P and Janik, R and Jarlskog, C and and Jarlskog, G and Jarry, P and Jean-Marie, B and Jeans, D and Johansson, and EK and Jonsson, P and Joram, C and Juillot, P and Jungermann, L and and Kapusta, F and Karafasoulis, K and Katsanevas, S and Katsoufis, EC and and Keranen, R and Kernel, G and Kersevan, BP and Khokhlov, Y and Khomenko, and BA and Khovanski, NN and Kiiskinen, A and King, B and Kinvig, A and and Kjaer, NJ and Klapp, O and Kluit, P and Kokkinias, P and Kostioukhine, V and and Kourkoumelis, C and Kouznetsov, O and Krammer, M and Kriznic, E and and Krumstein, Z and Kubinec, P and Kurowska, J and Kurvinen, K and Lamsa, and JW and Lane, DW and Laugier, JP and Lauhakangas, R and Leder, G and and Ledroit, F and Leinonen, L and Leisos, A and Leitner, R and Lenzen, G and and Lepeltier, V and Lesiak, T and Lethuillier, M and Libby, J and and Liebig, W and Liko, D and Lipniacka, A and Lippi, I and Loerstad, B and and Loken, JG and Lopes, JH and Lopez, JM and Lopez-Fernandez, R and Loukas, and D and Lutz, P and Lyons, L and MacNaughton, J and Mahon, JR and Maio, A and and Malek, A and Maltezos, S and Malychev, V and Mandl, F and Marco, J and and Marco, R and Marechal, B and Margoni, M and Marin, JC and Mariotti, and C and Markou, A and Martinez-Rivero, C and Garcia, SM and Masik, J and and Mastroyiannopoulos, N and Matorras, F and Matteuzzi, C and Matthiae, G and and Mazzucato, F and Mazzucato, M and Mc Cubbin, M and Mc Kay, R and Mc and Nulty, R and Mc Pherson, G and Merle, E and Meroni, C and Meyer, WT and and Migliore, E and Mirabito, L and Mitaroff, WA and Mjoernmark, U and Moa, and T and Moch, M and Moeller, R and Moenig, K and Monge, MR and Moraes, D and and Morettini, P and Morton, G and Mueller, U and Muenich, K and and Mulders, M and Mulet-Marquis, C and Mundim, LM and Muresan, R and and Murray, WJ and Muryn, B and Myatt, G and Myklebust, T and Naraghi, F and and Nassiakou, M and Navarria, FL and Nawrocki, K and Negri, P and Neufeld, and N and Nicolaidou, R and Nielsen, BS and Niezurawski, P and Nikolenko, M and and Nomokonov, V and Nygren, A and Obraztsov, V and Olshevski, AG and and Onofre, A and Orava, R and Orazi, G and Osterberg, K and Ouraou, A and and Oyanguren, A and Paganoni, M and Paiano, S and Pain, R and Paiva, R and and Palacios, J and Palka, H and Papadopoulou, TD and Pape, L and Parkes, C and and Parodi, F and Parzefall, U and Passeri, A and Passon, O and Pavel, T and and Pegoraro, M and Peralta, L and Pernicka, M and Perrotta, A and and Petridou, C and Petrolini, A and Phillips, HT and Pierre, F and Pimenta, and M and Piotto, E and Podobnik, T and Poireau, V and Pol, ME and Polok, G and and Poropat, P and Pozdniakov, V and Privitera, P and Pukhaeva, N and and Pullia, A and Radojicic, D and Ragazzi, S and Rahmani, H and Rames, J and and Ratoff, PN and Read, AL and Rebecchi, P and Redaelli, NG and Regler, and M and Rehn, J and Reid, D and Reinertsen, P and Reinhardt, R and Renton, and PB and Resvanis, LK and Richard, F and Ridky, J and Rinaudo, G and and Ripp-Baudot, I and Romero, A and Ronchese, P and Rosenberg, EI and and Rosinsky, P and Roudeau, P and Rovelli, T and Ruhlmann-Kleider, V and and Ruiz, A and Saarikko, H and Sacquin, Y and Sadovsky, A and Sajot, G and and Salt, J and Sampsonidis, D and Sannino, M and Savoy-Navarro, A and and Schwemling, P and Schwering, B and Schwickerath, U and Scuri, F and and Seager, P and Sedykh, Y and Segar, AM and Seibert, N and Sekulin, R and and Sette, G and Shellard, RC and Siebel, M and Simard, L and Simonetto, F and and Sisakian, AN and Smadja, G and Smirnov, N and Smirnova, O and Smith, and GR and Sokolov, A and Sopczak, A and Sosnowski, R and Spassov, T and and Spiriti, E and Squarcia, S and Stanescu, C and Stanitzki, M and and Stevenson, K and Stocchi, A and Strauss, J and Strub, R and Stugu, B and and Szczekowski, M and Szeptycka, M and Tabarelli, T and Taffard, A and and Tchikilev, O and Tegenfeldt, F and Terranova, F and Timmermans, J and and Tinti, N and Tkatchev, LG and Tobin, M and Todorova, S and Tome, B and and Tonazzo, A and Tortora, I and Tortosa, P and Transtromer, G and Treille, and D and Tristram, G and Trochimczuk, M and Troncon, C and Turluer, ML and and Tyapkin, IA and Tyapkin, P and Tzamarias, S and Ullaland, O and Uvarov, and V and Valenti, G and Vallazza, E and Vander Velde, C and Van Dam, P and and Van den Boeck, W and Van Eldik, J and Van Lysebetten, A and van and Remortel, N and Van Vulpen, I and Vegni, G and Ventura, L and Venus, W and and Verbeure, F and Verdier, P and Verlato, M and Vertogradov, LS and and Verzi, V and Vilanova, D and Vitale, L and Vlasov, E and Vodopyanov, AS and and Voulgaris, G and Vrba, V and Wahlen, H and Washbrook, AJ and Weiser, and C and Wicke, D and Wickens, JH and Wilkinson, GR and Winter, M and and Witek, M and Wolf, G and Yi, J and Yushchenko, O and Zalewska, A and and Zalewski, P and Zavrtanik, D and Zevgolatakos, E and Zimin, NI and and Zintchenko, A and Zoller, P and Zumerle, G and Zupan, M", journal = "PHYSICS LETTERS B", year = "2000", volume = "489", number = "1-2", pages = "38-54", publisher = "ELSEVIER SCIENCE BV", issn = "0370-2693", doi = "10.1016/S0370-2693(00)00888-1", 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 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/c2, 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 less than or equal to tan beta less than or equal to 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%. (C) 2000 Published by Elsevier Science B.V." }