@article{3054607,
    title = "Measurement of the ZZ cross-section in e(+)e(-) interactions at 183-189
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 Buschmann, P and Cabrera, S and Caccia, M and Calvi, M and and Camporesi, T and Canale, V and Carena, F and Carroll, L and Caso, C and and Gimenez, MVC and Cattai, A and Cavallo, FR and Charpentier, P and and Checchia, P and Chelkov, GA and Chierici, R and Chliapnikov, P and and Chochula, P and Chorowicz, V and Chudoba, J and Cieslik, K and Collins, and P and Contri, R and Cortina, E and Cosme, G and Cossutti, F and Costa, M and and Crawley, HB and Crennell, D and Croix, J and Maestro, JC and and Czellar, S and D'Hondt, J and Dalmau, J and Davenport, M and Da Silva, W and and Della Ricca, G and Delpierre, P and Demaria, N and De Angelis, A and and De Boer, W and De Clercq, C and De Lotto, B and De Min, A and De Paula, and L and Dijkstra, H and Di Ciaccio, L and Dolbeau, J and Doroba, K and and Dracos, M and Drees, J and Dris, M and Eigen, G and Ekelof, T and and Ellert, M and Elsing, M and Engel, JP and Santo, ME and Fanourakis, G and and Fassouliotis, D and Feindt, M and Fernandez, J and Ferrer, A and and Ferrer-Ribas, E and Ferro, F and Firestone, A and Flagmeyer, U and and Foeth, H and Fokitis, E and Fontanelli, F and Franek, B and Frodesen, AG and and Fruhwirth, R and Fulda-Quenzer, F and Fuster, J and Galloni, A and and Gamba, D and Gamblin, S and Gandelman, M and Garcia, C and Gaspar, C and and Gaspar, M and Gasparini, U and Gavillet, P and Gazis, EN and Gele, D and and Geralis, T and Gerdyukov, L and Ghodbane, N and Gil, I and Glege, F and and Gokieli, R and Golob, B and Gomez-Ceballos, G and Goncalves, P and and Caballero, IG and Gopal, G and Gorn, L and Gouz, Y and Gracco, V and and Grahl, J and Graziani, E and Gris, P and Grosdidier, G and Grzelak, K and and Guy, J and Haag, C and Hahn, F and Hahn, S and Haider, S and and Hallgren, A and Hamacher, K and Hansen, J and Harris, FJ and Haug, S and and Hauler, F and Hedberg, V and Heising, S and Hernandez, JJ and Herquet, P and and Herr, H and Higon, E and Holmgren, SO and Holt, PJ and Hoorelbeke, S and and Houlden, M and Hrubec, J and Huber, M and Hughes, GJ and Hultqvist, and K and Jackson, JN and Jacobsson, R and Jalocha, P and Janik, R and and Jarlskog, C and Jarlskog, G and Jarry, P and Jean-Marie, B and Jeans, D and and Johansson, EK and Jonsson, P and Joram, C and Juillot, P and and Jungermann, L and Kapusta, F and Karafasoulis, K and Katsanevas, S and and Katsoufis, EC and Keranen, R and Kernel, G and Kersevan, BP and and Khokhlov, Y and Khomenko, BA and Khovanski, NN and Kiiskinen, A and and King, B and Kinvig, A and Kjaer, NJ and Klapp, O and Kluit, P and and Kokkinias, P and Kostioukhine, V and Kourkoumelis, C and Kouznetsov, O and and Krammer, M and Kriznic, E and Krumstein, Z and Kubinec, P and and Kurowska, J and Kurvinen, K and Lamsa, JW and Lane, DW and Laugier, JP and and Lauhakangas, R and Leder, G and Ledroit, F and Leinonen, L and and Leisos, A and Leitner, R and Lemonne, J and Lenzen, G and Lepeltier, V and and Lesiak, T and Lethuillier, M and Libby, J and Liebig, W and Liko, D and and Lipniacka, A and Lippi, I and Loerstad, B and Loken, JG and Lopes, and JH and Lopez, JM and Lopez-Fernandez, R and Loukas, D and Lutz, P and and Lyons, L and MacNaughton, J and Mahon, JR and Maio, A and Malek, A and and Maltezos, S and Malychev, V and Mandl, F and Marco, J and Marco, R and and Marechal, B and Margoni, M and Marin, JC and Mariotti, C and Markou, A and and Martinez-Rivero, C and Garcia, SMI and Masik, J and and Mastroyiannopoulos, N and Matorras, F and Matteuzzi, C and Matthiae, G and and Mazzucato, F and Mazzucato, M and McCubbin, M and McKay, R and and McNulty, R and McPherson, 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 Montenegro, and J and Moraes, D and Morettini, P and Morton, G and Mueller, U and and Muenich, K and Mulders, M and Mulet-Marquis, C and Mundim, LM and and Muresan, R and Murray, WJ and Muryn, B and Myatt, G and Myklebust, T and and Naraghi, F and Nassiakou, M and Navarria, FL and Nawrocki, K and Negri, and P and Neufeld, N and Nicolaidou, R and Nielsen, BS and Niezurawski, P and and Nikolenko, M and Nomokonov, V and Nygren, A and Obraztsov, V and and Olshevski, AG and Onofre, A and Orava, R 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 and Parkes, C and Parodi, F and Parzefall, U and Passeri, A and Passon, O and and Pavel, T and Pegoraro, M and Peralta, L and Pernicka, M and and Perrotta, A and Petridou, C and Petrolini, A and Phillips, HT and and Pierre, F and Pimenta, M and Piotto, E and Podobnik, T and Poireau, V and and Pol, ME and Polok, G and Poropat, P and Pozdniakov, V and Privitera, and P and Pukhaeva, N and Pullia, A and Radojicic, D and Ragazzi, S and and Rahmani, H and Rames, J and Ratoff, PN and Read, AL and Rebecchi, P and and Redaelli, NG and Regler, M and Rehn, J and Reid, D and Reinertsen, P and and Reinhardt, R and Renton, PB and Resvanis, LK and Richard, F and Ridky, J and and Rinaudo, G and Ripp-Baudot, I and Romero, A and Ronchese, P and and Rosenberg, EI and Rosinsky, P and Roudeau, P and Rovelli, T and and Ruhlmann-Kleider, V and Ruiz, A and Saarikko, H and Sacquin, Y and and Sadovsky, A and Sajot, G and Salt, J and Sampsonidis, D and Sannino, M and and Savoy-Navarro, A and Schwanda, C and Schwemling, P and Schwering, B and and Schwickerath, U and Scuri, F and Seager, P and Sedykh, Y and Segar, and AM and Seibert, N and Sekulin, R and Sette, G and Shellard, RC and and Siebel, M and Simard, L and Simonetto, F and Sisakian, AN and Smadja, G and and Smirnov, N and Smirnova, O and Smith, GR and Sokolov, A and and Solovianov, O 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 Tegenfeldt, F and Terranova, F and Timmermans, J and Tinti, N and and Tkatchev, LG and Tobin, M and Todorova, S and Tome, B and Tonazzo, A and and Tortora, L and Tortosa, P and Transtromer, G and Treille, D and 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 Van Dam, P and Van den Boeck, W and and Van Doninck, WK and Van Eldik, J and Van Lysebetten, A and van Remortel, and 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 Verzi, and 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, C and and Wicke, D and Wickens, JH and Wilkinson, GR and Winter, M and Witek, and M and Wolf, G and Yi, J and Yushchenko, O and Zalewska, A and Zalewski, and P and Zavrtanik, D and Zevgolatakos, E and Zimin, NI and Zintchenko, A and and Zoller, P and Zumerle, G and Zupan, M and DELPHI Collaboration",
    journal = "PHYSICS LETTERS B",
    year = "2001",
    volume = "497",
    number = "3-4",
    pages = "199-213",
    publisher = "ELSEVIER SCIENCE BV",
    issn = "0370-2693",
    doi = "10.1016/S0370-2693(00)01346-0",
    abstract = "Measurements of on-shell ZZ production are described, using data
collected by DELPHI in 1997 and 1998, at centre-of-mass energies roots =
182.6 GeV and 188.6 GeV, respectively. Results obtained in each of the
final states q (q) over barq (q) over bar, mu (+)mu (-) q (q) over bar
e(+)e(-)q (q) over bar, nu<(<nu>)over bar>q (q) over bar,
l(+)l(-)l(+)l(-), and nu<(<nu>)over bar>l(+)l(-) are presented. The
measured cross-sections for on-shell ZZ production via the tree-level
doubly-resonant graphs (NC02) are: sigma (NC02) (182.6 GeV) = 0.38 +/-
0.18 (stat) +/- 0.04 (syst) pb, sigma (NC02) (188.6 GeV) = 0.60+/-0.13
(stat) +/- 0.07 (syst) pb. They are consistent with the Standard Model
expectations of 0.25 and 0.65 pb at each energy. (C) 2001 Published by
Elsevier Science B.V."
}