Measurement of the ZZ cross-section in e(+)e(-) interactions at 183-189 GeV

6533b862fe1ef96bd12c76ef

RESEARCH PRODUCT

Measurement of the ZZ cross-section in e(+)e(-) interactions at 183-189 GeV

P Abreu W Adam T Adye P Adzic I Ajinenko Z Albrecht T Alderweireld Gd Alekseev R Alemany T Allmendinger Pp Allport S Almehed U Amaldi N Amapane S Amato Eg Anassontzis P Andersson A Andreazza S Andringa P Antilogus Wd Apel Y Arnoud B Asman Je Augustin A Augustinus P Baillon A Ballestrero P Bambade F Barao G Barbiellini R Barbier Dy Bardin G Barker A Baroncelli M Battaglia M Baubillier Kh Becks M Begalli A Behrmann P Beilliere Y Belokopytov Nc Benekos Ac Benvenuti C Berat M Berggren L Berntzon D Bertrand M Besancon Ms Bilenky Ma Bizouard D Bloch Hm Blom M Bonesini M Boonekamp Psl Booth G Borisov C Bosio O Botner E Boudinov B Bouquet C Bourdarios Tjv Bowcock I Boyko I Bozovic M Bozzo M Bracko P Branchini Ra Brenner P Bruckman Jm Brunet L Bugge T Buran P Buschmann S Cabrera M Caccia M Calvi T Camporesi V Canale F Carena L Carroll C Caso Mvc Gimenez A Cattai Fr Cavallo P Charpentier P Checchia Ga 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 Hb Crawley D Crennell J Croix Jc 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 Jp Engel Me 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 Ag Frodesen R Fruhwirth F Fulda-quenzer J Fuster A Galloni D Gamba S Gamblin M Gandelman C Garcia C Gaspar M Gaspar U Gasparini P Gavillet En Gazis D Gele T Geralis L Gerdyukov N Ghodbane I Gil F Glege R Gokieli B Golob G Gomez-ceballos P Goncalves Ig Caballero G Gopal L Gorn Y 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 Fj Harris S Haug F Hauler V Hedberg S Heising Jj Hernandez P Herquet H Herr E Higon So Holmgren Pj Holt S Hoorelbeke M Houlden J Hrubec M Huber Gj Hughes K Hultqvist Jn Jackson R Jacobsson P Jalocha R Janik C Jarlskog G Jarlskog P Jarry B Jean-marie D Jeans Ek Johansson P Jonsson C Joram P Juillot L Jungermann F Kapusta K Karafasoulis S Katsanevas Ec Katsoufis R Keranen G Kernel Bp Kersevan Y Khokhlov Ba Khomenko Nn Khovanski A Kiiskinen B King A Kinvig Nj 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 Jw Lamsa Dw Lane Jp 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 Jg Loken Jh Lopes Jm Lopez R Lopez-fernandez D Loukas P Lutz L Lyons J Macnaughton Jr Mahon A Maio A Malek S Maltezos V Malychev F Mandl J Marco R Marco B Marechal M Margoni Jc Marin C Mariotti A Markou C Martinez-rivero Smi Garcia J Masik N Mastroyiannopoulos F Matorras C Matteuzzi G Matthiae F Mazzucato M Mazzucato M Mccubbin R Mckay R Mcnulty G Mcpherson E Merle C Meroni Wt Meyer E Migliore L Mirabito Wa Mitaroff U Mjoernmark T Moa M Moch R Moeller K Moenig Mr Monge J Montenegro D Moraes P Morettini G Morton U Mueller K Muenich M Mulders C Mulet-marquis Lm Mundim R Muresan Wj Murray B Muryn G Myatt T Myklebust F Naraghi M Nassiakou Fl Navarria K Nawrocki P Negri N Neufeld R Nicolaidou Bs Nielsen P Niezurawski M Nikolenko V Nomokonov A Nygren V Obraztsov Ag Olshevski A Onofre R Orava K Osterberg A Ouraou A Oyanguren M Paganoni S Paiano R Pain R Paiva J Palacios H Palka Td 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 Ht Phillips F Pierre M Pimenta E Piotto T Podobnik V Poireau Me Pol G Polok P Poropat V Pozdniakov P Privitera N Pukhaeva A Pullia D Radojicic S Ragazzi H Rahmani J Rames Pn Ratoff Al Read P Rebecchi Ng Redaelli M Regler J Rehn D Reid P Reinertsen R Reinhardt Pb Renton Lk Resvanis F Richard J Ridky G Rinaudo I Ripp-baudot A Romero P Ronchese Ei 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 C Schwanda P Schwemling B Schwering U Schwickerath F Scuri P Seager Y Sedykh Am Segar N Seibert R Sekulin G Sette Rc Shellard M Siebel L Simard F Simonetto An Sisakian G Smadja N Smirnov O Smirnova Gr Smith A Sokolov 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 Lg Tkatchev M Tobin S Todorova B Tome A Tonazzo L Tortora P Tortosa G Transtromer D Treille G Tristram M Trochimczuk C Troncon Ml Turluer Ia Tyapkin P Tyapkin S Tzamarias O Ullaland V Uvarov G Valenti E Vallazza P Van Dam W Van Den Boeck Wk 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 Ls Vertogradov V Verzi D Vilanova L Vitale E Vlasov As Vodopyanov G Voulgaris V Vrba H Wahlen Aj Washbrook C Weiser D Wicke Jh Wickens Gr Wilkinson M Winter M Witek G Wolf J Yi O Yushchenko A Zalewska P Zalewski D Zavrtanik E Zevgolatakos Ni Zimin A Zintchenko P Zoller G Zumerle M Zupan Delphi Collaboration

subject

Particle physics Nuclear and High Energy Physics COLLISIONS LOWEST ORDER CALCULATIONS PAIR PRODUCTION ENERGIES MONTE-CARLO SIMULATION FOS: Physical sciences 2-PHOTON PROCESSES 01 natural sciences Partícules (Física nuclear)Standard Model High Energy Physics - Experiment High Energy Physics - Experiment (hep-ex)LEP2 SEARCH 0103 physical sciences [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]PROGRAM 010306 general physics QC DELPHI Physics 010308 nuclear & particles physics Physics Sigma MONTE-CARLO SIMULATION; LOWEST ORDER CALCULATIONS; PAIR PRODUCTION; 2-PHOTON PROCESSES; ROOT-S=183 GEV; COLLISIONS; PROGRAM; LEP2; ENERGIES; SEARCH LARGE ELECTRON POSITRON COLLIDER PARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHI PARTICLE PHYSICS Física nuclear Particle Physics - Experiment ROOT-S=183 GEV

description

Measurements of on-shell ZZ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies sqrt(s) = 182.6 GeV and 188.6 GeV respectively. Results obtained in each of the final states q qbar q qbar, mu+mu- q qbar, e+e- q qbar, nu nubar q qbar, l+l-l+l-, and nu nubar 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 pb and 0.65 pb at each energy.

year	journal	country	edition	language
2001-01-01

10.1016/s0370-2693(00)01346-0 http://hdl.handle.net/11588/466357