W pair production cross-section and W branching fractions in $e^{+}e^{-}$ interactions at 189 GeV

6533b82cfe1ef96bd128fef3

RESEARCH PRODUCT

W pair production cross-section and W branching fractions in $e^{+}e^{-}$ interactions at 189 GeV

P Abreu W Adam T Adye P Adzic 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 K Belous Nc Benekos Ac Benvenuti C Berat M Berggren 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 B Buschbeck P Buschmann S Cabrera M Caccia M Calvi T Camporesi V Canale F Carena L Carroll C Caso Mvc Gimenez A Cattai Fr Cavallo V Chabaud P Chapkin 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 S Crepe G Crosetti Jc 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 Jd Durand G Eigen T Ekelof G Ekspong M Ellert M Elsing Jp Engel Me Santo G Fanourakis D Fassouliotis J Fayot M Feindt J Fernandez A Ferrer E Ferrer-ribas F Ferro S Fichet 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 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 F Hauler V Hedberg S Heising Jj Hernandez P Herquet H Herr Jm Heuser 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 H Klein 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 V Lapin Jp 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 Jg Loken Jh Lopes Jm Lopez R Lopez-fernandez D Loukas P Lutz L Lyons J Macnaughton Jr Mahon A Maio A Malek Tgm Malmgren 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 Mc Cubbin R Mc Kay R Mc Nulty G Mc Pherson C Meroni Wt Meyer A Miagkov E Migliore L Mirabito Wa Mitaroff U Mjoernmark T Moa M Moch R Moeller K Moenig Mr Monge D Moraes X Moreau P Morettini G Morton U Mueller K Muenich M Mulders C Mulet-marquis 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 G Orazi 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 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 O Rohne A Romero P Ronchese Ei Rosenberg P Rosinsky P Roudeau T Rovelli C Royon V Ruhlmann-kleider A Ruiz H Saarikko Y Sacquin A Sadovsky G Sajot J Salt D Sampsonidis M Sannino A Savoy-navarro 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 O Smirnova Gr 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 Lg 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 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 C Walck 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 Gc Zucchelli G Zumerle Delphi Collaboration

subject

Nuclear and High Energy Physics Particle physics E+E-ANNIHILATION; DELPHI; PROGRAM; DECAYS; MASS Analytical chemistry FOS: Physical sciences MASS Branching (polymer chemistry)01 natural sciences DECAYS Partícules (Física nuclear)High Energy Physics - Experiment High Energy Physics - Experiment (hep-ex)electronic publishing 0103 physical sciences PROGRAM [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Matrix element 010306 general physics DELPHI Physics high energy collider 010308 nuclear & particles physics LEP E+E-ANNIHILATION LARGE ELECTRON POSITRON COLLIDER neteconomy FIS/01 - FISICA SPERIMENTALE Pair production PARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHI PARTICLE PHYSICS Física nuclear High Energy Physics::Experiment Particle Physics - Experiment

description

The cross-section for the process e+e- -> W+W- has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 189 GeV and corresponding to an integrated luminosity of 155 pb^{-1}. Based on the 2392 events selected as WW candidates, the cross-section for the doubly resonant process e+e- -> W+W- has been measured to be 15.83 +- 0.38 (stat) +- 0.20 (syst) pb. The branching fractions of the W decay were also measured and found to be in good agreement with the Standard Model expectation. From these a value of the CKM mixing matrix element |V_{cs}| = 1.001 +- 0.040 (stat) +- 0.020 (syst) was derived.

year	journal	country	edition	language
2000-01-01

10.1016/s0370-2693(00)00314-2 http://cds.cern.ch/record/432734