| Title: |
Study of W-boson polarisations and triple gauge boson couplings in the reaction e(+)e(-)-> W+W- at LEP 2 |
| Authors: |
ABDALLAH, J; ABREU, P; ADAM, W; ADZIC, P; ALBRECHT, T; ALEMANY FERNANDEZ, R; ALLMENDINGER, T; ALLPORT, P; AMALDI, U; AMAPANE, N; AMATO, S; ANASHKIN, E; ANDREAZZA, A; ANDRINGA, S; ANJOS, N; ANTILOGUS, P; APEL, W; ARNOUD, Y; ASK, S; ASMAN, B; AUGUSTIN, J; AUGUSTINUS, A; BAILLON, P; BALLESTRERO, A; BAMBADE, P; BARBIER, R; BARDIN, D; BARKER, G; BARONCELLI, A; BATTAGLIA, M; BAUBILLIER, M; BECKS, K; 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, P; BORISOV, G; BOTNER, O; BOUQUET, B; BOWCOCK, T; BOYKO, I; BRACKO, M; BRENNER, R; BRODET, E; BRUCKMAN, P; BRUNET, J; BUSCHBECK, B; BUSCHMANN, P; CAMPORESI, T; CANALE, V; CARENA, F; CASTRO, N; CAVALLO, F; CHAPKIN, M; CHARPENTIER, P; CHECCHIA, P; CHIERICI, R; CHLIAPNIKOV, P; CHUDOBA, J; CHUNG, S; CIESLIK, K; COLLINS, P; CONTRI, R; COSME, G; COSSUTTI, F; COSTA, M; CRENNELL, D; CUEVAS, J; D'HONDT, J; DA SILVA, T; DA SILVA, W; DELLA RICCA, G; DE ANGELIS, A; DE BOER, W; DE CLERCQ, C; DE LOTTO, B; 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, M; 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, S; HOLT, P; HOULDEN, M; JACKSON, J; JARLSKOG, G; JARRY, P; JEANS, D; JOHANSSON, E; JONSSON, P; JORAM, C; JUNGERMANN, L; KAPUSTA, F; KATSANEVAS, S; KATSOUFIS, E; KERNEL, G; KERSEVAN, B; KERZEL, U; KING, B; KJAER, N; 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, J; LOPEZ, J; LOUKAS, D; LUTZ, P; LYONS, L; MACNAUGHTON, J; MALEK, A; MALTEZOS, S; MANDL, F; MARCO, J; MARCO, R; MARECHAL, B; MARGONI, M; MARIN, J; 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; PAIANO, S; PALACIOS, J; PALKA, H; PAPADOPOULOU, T; 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, M; 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, M; TYAPKIN, I; 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, A; WEISER, C; WICKE, D; WICKENS, J; WILKINSON, G; WINTER, M; WITEK, M; YUSHCHENKO, O; ZALEWSKA, A; ZALEWSKI, P; ZAVRTANIK, D; ZHURAVLOV, V; ZIMIN, N; ZINTCHENKO, A; ZUPAN, M.; CALVI, MARTA; PAGANONI, MARCO |
| Contributors: |
Abdallah, J; Abreu, P; Adam, W; Adzic, P; Albrecht, T; Alemany Fernandez, R; Allmendinger, T; Allport, P; Amaldi, U; Amapane, N; Amato, S; Anashkin, E; Andreazza, A; Andringa, S; Anjos, N; Antilogus, P; Apel, W; Arnoud, Y; Ask, S; Asman, B; Augustin, J; Augustinus, A; Baillon, P; Ballestrero, A; Bambade, P; Barbier, R; Bardin, D; Barker, G; Baroncelli, A; Battaglia, M; Baubillier, M; Becks, K; 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, P; Borisov, G; Botner, O; Bouquet, B; Bowcock, T; Boyko, I; Bracko, M; Brenner, R; Brodet, E; Bruckman, P; Brunet, J; 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, S; Cieslik, K; Collins, P; Contri, R; Cosme, G; Cossutti, F; Costa, M; Crennell, D; Cuevas, J; D'Hondt, J; Da Silva, T; Da Silva, W; Della Ricca, G; De Angelis, A; De Boer, W; De Clercq, C; De Lotto, B; 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: |
EDP Sciences |
| Publication Year: |
2008 |
| Collection: |
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive) |
| Subject Terms: |
Electroweak Physics; W boson; Trilinear gauge boson couplings |
| Description: |
A determination of the single W spin density matrix (SDM) elements in the reaction e + e - →W + W - →lνqq (l=e/μ) is reported at centre-of-mass energies between 189 and 209∈GeV. The data sample used corresponds to an integrated luminosity of 520∈pb -1 taken by DELPHI between 1998 and 2000. The single W SDM elements, ρ ττ' W± (τ,τ'= ± 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, Λ ττ' , 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: σ {L}{σ} = 24.9 pm4.5( pm2.2({)\% at a mean energy of 198∈GeV. The SDM elements are also used to determine the triple gauge couplings Δg 1 Z ,Δκ γ ,λ γ and g 4 Z , ̃κ_Z and ̃λ {Z} . For the CP-violating couplings the results of single parameter fits are: g4Z = -0.39+0.19-0.20 ̃κZ = -0.09+0.08-0.05 ̃λ Z = -0.08±0.07 The errors are a combination of statistical and systematic errors. All results are consistent with the Standard Model. © 2008 Springer-Verlag / Società Italiana di Fisica. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/wos/WOS:000254206800001; volume:54; issue:3; firstpage:345; lastpage:364; journal:THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS; https://hdl.handle.net/10281/15331 |
| DOI: |
10.1140/epjc/s10052-008-0528-3 |
| Availability: |
https://hdl.handle.net/10281/15331; https://doi.org/10.1140/epjc/s10052-008-0528-3 |
| Rights: |
info:eu-repo/semantics/openAccess ; license:Creative Commons ; license uri:http://creativecommons.org/licenses/by-nc/4.0/ |
| Accession Number: |
edsbas.331CC03F |
| Database: |
BASE |