Study of W-boson polarisations and triple gauge boson couplings in the reaction e(+)e(-)-> W+W- at LEP 2
| Title: | Study of W-boson polarisations and triple gauge boson couplings in the reaction e(+)e(-)-> W+W- at LEP 2 |
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| Authors: | Abdallah J; Abreu P; Adam W; Adzic P; Albrecht T; Alemany Fernandez R; Allmendinger T; Allport PP; Amaldi U; Amapane N; Amato S; Anashkin E; Andreazza A; Andringa S; Anjos N; Antilogus P; Apel WD; Arnoud Y; Ask S; Asman B; Augustin JE; Augustinus A; Baillon P; Ballestrero A; Bambade P; Barbier R; Bardin D; Barker GJ; Baroncelli A; Battaglia M; Baubillier M; Becks KH; Begalli M; Behrmann A; Ben Haim E; Benekos N; Benvenuti A; Berat C; Berggren M; Bertrand D; Besancon M; Besson N; Bloch D; Blom M; Bluj M; Bonesini M; Boonekamp M; Booth PSL; Borisov G; Botner O; Bouquet B; Bowcock TJV; Boyko I; Bracko M; Brenner R; Brodet E; Bruckman P; Brunet JM; Buschbeck B; Buschmann P; Calvi M; Camporesi T; Canale V; Carena F; Castro N; Cavallo F; Chapkin M; Charpentier P; Checchia P; Chierici R; Chliapnikov P; Chudoba J; Chung SU; Cieslik K; Collins P; Contri R; Cosme G; Cossutti F; Costa MJ; Crennell D; Cuevas J; D'Hondt J; da Silva T; Da Silva W; Della Ricca G; De Boer W; De Clercq C; DE LOTTO, Barbara; De Maria N; De Min A; De Paula L; Di Ciaccio L; Di Simone A; Doroba K; Drees J; Eigen G; Ekelof T; Ellert M; Elsing M; Santo MCE; Fanourakis G; Fassouliotis D; Feindt M; Fernandez J; Ferrer A; Ferro F; Flagmeyer U; Foeth H; Fokitis E; Fulda Quenzer F; Fuster J; Gandelman M; Garcia C; Gavillet P; Gazis E; Gokieli R; Golob B; Gomez Ceballos G; Goncalves P; Graziani E; Grosdidier G; Grzelak K; Guy J; Haag C; Hallgren A; Hamacher K; Hamilton K; Haug S; Hauler F; Hedberg V; Hennecke M; Hoffman J; Holmgren SO; Holt PJ; Houlden MA; Jackson JN; Jarlskog G; Jarry P; Jeans D; Johansson EK; Jonsson P; Joram C; Jungermann L; Kapusta F; Katsanevas S; Katsoufis E; Kernel G; Kersevan BP; Kerzel U; King BT; Kjaer NJ; Kluit P; Kokkinias P; Kourkoumelis C; Kouznetsov O; Krumstein Z; Kucharczyk M; Lamsa J; Leder G; Ledroit F; Leinonen L; Leitner R; Lemonne J; Lepeltier V; Lesiak T; Liebig W; Liko D; Lipniacka A; Lopes JH; Lopez JM; Loukas D; Lutz P; Lyons L; MacNaughton J; Malek A; Maltezos S; Mandl F; Marco J; Marco R; Marechal B; Margoni M; Marin JC; Mariotti C; Markou A; Martinez Rivero C; Masik J; Mastroyiannopoulos N; Matorras F; Matteuzzi C; Mazzucato F; Mazzucato M; Mc Nulty R; Meroni C; Migliore E; Mitaroff W; Mjoernmark U; Moa T; Moch M; Moenig K; Monge R; Montenegro J; Moraes D; Moreno S; Morettini P; Mueller U; Muenich K; Mulders M; Mundim L; Murray W; Muryn B; Myatt G; Myklebust T; Nassiakou M; Navarria F; Nawrocki K; Nicolaidou R; Nikolenko M; Oblakowska Mucha A; Obraztsov V; Olshevski A; Onofre A; Orava R; Osterberg K; Ouraou A; Oyanguren A; Paganoni M; Paiano S; Palacios JP; Palka H; Papadopoulou TD; Pape L; Parkes C; Parodi F; Parzefall U; Passeri A; Passon O; Peralta L; Perepelitsa V; Perrotta A; Petrolini A; Piedra J; Pieri L; Pierre F; Pimenta M; Piotto E; Podobnik T; Poireau V; Pol ME; Polok G; Pozdniakov V; Pukhaeva N; Pullia A; Radojicic D; Rames J; Read A; Rebecchi P; Rehn J; Reid D; Reinhardt R; Renton P; Richard F; Ridky J; Rivero M; Rodriguez D; Romero A; Ronchese P; Roudeau P; Rovelli T; Ruhlmann Kleider V; Ryabtchikov D; Sadovsky A; Salmi L; Salt J; Sander C; Savoy Navarro A; Schwickerath U; Sekulin R; Siebel M; Sisakian A; Smadja G; Smirnova O; Sokolov A; Sopczak A; Sosnowski R; Spassov T; Stanitzki M; Stocchi A; Strauss J; Stugu B; Szczekowski M; Szeptycka M; Szumlak T; Tabarelli T; Tegenfeldt F; Timmermans J; Tkatchev L; Tobin M; Todorovova S; Tome B; Tonazzo A; Tortosa P; Travnicek P; Treille D; Tristram G; Trochimczuk M; Troncon C; Turluer ML; Tyapkin IA; Tyapkin P; Tzamarias S; Uvarov V; Valenti G; Van Dam P; Van Eldik J; Van Lysebetten A; Van Remortel N; Van Vulpen I; Vegni G; Veloso F; Venus W; Verdier P; Verzi V; Vilanova D; Vitale L; Vrba V; Wahlen H; Washbrook AJ; Weiser C; Wicke D; Wickens J; Wilkinson G; Winter M; Witek M; Yushchenko O; Zalewska A; Zalewski P; Zavrtanik D; Zhuravlov V; Zimin NI; Zintchenko A; Zupan M.; DE ANGELIS, Alessandro |
| Contributors: | Abdallah, J; Abreu, P; Adam, W; Adzic, P; Albrecht, T; Alemany Fernandez, R; Allmendinger, T; Allport, Pp; Amaldi, U; Amapane, N; Amato, S; Anashkin, E; Andreazza, A; Andringa, S; Anjos, N; Antilogus, P; Apel, Wd; Arnoud, Y; Ask, S; Asman, B; Augustin, Je; Augustinus, A; Baillon, P; Ballestrero, A; Bambade, P; Barbier, R; Bardin, D; Barker, Gj; Baroncelli, A; Battaglia, M; Baubillier, M; Becks, Kh; Begalli, M; Behrmann, A; Ben Haim, E; Benekos, N; Benvenuti, A; Berat, C; Berggren, M; Bertrand, D; Besancon, M; Besson, N; Bloch, D; Blom, M; Bluj, M; Bonesini, M; Boonekamp, M; Booth, Psl; Borisov, G; Botner, O; Bouquet, B; Bowcock, Tjv; Boyko, I; Bracko, M; Brenner, R; Brodet, E; Bruckman, P; Brunet, Jm; Buschbeck, B; Buschmann, P; Calvi, M; Camporesi, T; Canale, V; Carena, F; Castro, N; Cavallo, F; Chapkin, M; Charpentier, P; Checchia, P; Chierici, R; Chliapnikov, P; Chudoba, J; Chung, Su; Cieslik, K; Collins, P; Contri, R; Cosme, G; Cossutti, F; Costa, Mj; Crennell, D; Cuevas, J; D'Hondt, J; da Silva, T; Da Silva, W; Della Ricca, G; DE ANGELIS, Alessandro; De Boer, W; De Clercq, C; DE LOTTO, Barbara; De Maria, N; De Min, A; De Paula, L; Di Ciaccio, L; Di Simone, A; Doroba, K; Drees, J; Eigen, G; Ekelof, T; Ellert, M; Elsing, M |
| Publisher Information: | Springer Verlag Germany |
| Publication Year: | 2008 |
| Collection: | Università degli Studi di Udine: CINECA IRIS |
| Description: | A determination of the single W spin density matrix (SDM) elements in the reaction e(+)e(-) -> W+W--> l nu q (q) over bar (l=e/mu) is reported at centre-of-mass energies between 189 and 209GeV. The data sample used corresponds to an integrated luminosity of 520pb(-1) taken by DELPHI between 1998 and 2000. The single W SDM elements, rho(W +/-)(tau tau') (tau,tau'=+/- 1 or 0), are determined as a function of the W- production angle with respect to the e(-) beam direction and are obtained from measurements of the W decay products by the application of suitable projection operators, Lambda(tau tau'), which assume the V-A coupling of the W-boson to fermions. The measured SDM elements are used to obtain the fraction of longitudinally polarised Ws, with the result: sigma(L)/sigma(tot) = 24.9 +/- 4.5 (stat) +/- 2.2 (syst)% at a mean energy of 198 GeV. The SDM elements are also used to determine the triple gauge couplings Delta g(1)(Z), Delta kappa(gamma), lambda(gamma) and g(4)(Z), (kappa) over tilde (Z) and (lambda) over tilde (Z). For the CP-violating couplings the results of single parameter fits are: g(4)(Z) = -0.39(-0.20)(+0.19) (kappa) over tilde (Z) = -0.09(-0.05)(+0.08) (lambda) over tilde (Z) = -0.08 +/- 0.07. The errors are a combination of statistical and systematic errors. All results are consistent with the Standard Model. |
| Document Type: | article in journal/newspaper |
| Language: | unknown |
| Relation: | info:eu-repo/semantics/altIdentifier/wos/WOS:000254206800001; volume:54; issue:3; firstpage:345; lastpage:364; numberofpages:20; journal:THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS; http://hdl.handle.net/11390/879834 |
| DOI: | 10.1140/epjc/s10052-008-0528-3 |
| Availability: | http://hdl.handle.net/11390/879834; https://doi.org/10.1140/epjc/s10052-008-0528-3 |
| Accession Number: | edsbas.DBB572DE |
| Database: | BASE |