Measurement of the forward-backward asymmetries of e(+)e(-)-> Z -> b(b)over-bar and e(+)e(-)-> Z -> c(c)over-bar using prompt leptons

Abdallah, J; Abreu, P; Adam, W; Adzic, P; Albrecht, T; Alderweireld, 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, Wd; Arnoud, Y; Ask, S; Asman, B; Augustin, E; Augustinus, A; Baillon, P; Ballestrero, A; Bambade, P; Barbier, R; Bardin, D; Barker, G; Baroncelli, A; Battaglia, M; Baubillier, M; Becks, Kh; Begalli, M; Behrmann, A; Ben Haim, E; Benekos, N; Benvenuti, A; Berat, C; Berggren, M; Berntzon, L; Bertrand, D; Besancon, M; Besson, N; Bloch, D; Blom, M; Bluj, M; Bonesini, M; Boonekamp, M; Booth, L; Borisov, G; Botner, O; Bouquet, B; Bowcock, V; Boyko, I; Bracko, M; Brenner, R; Brodet, E; Bruckman, P; Brunet, M; Bugge, L; 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, U; Cieslik, K; Collins, P; Contri, R; Cosme, G; Cossutti, F; Costa, J; Crennell, D; Cuevas, J; D'Hondt, J; Dalmau, 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; Dris, M; Eigen, G; Ekelof, T; Ellert, M; Elsing, M; Santo, Ce; 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; Ceballos, Gg; 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; Herr, H; Hoffman, J; Holmgren, So; Holt, J; Houlden, A; Hultqvist, K; Jackson, N; Jarlskog, G; Jarry, P; Jeans, D; Johansson, K; Johansson, D; Jonsson, P; Joram, C; Jungermann, L; Kapusta, F; Katsanevas, S; Katsoufis, E; Kernel, G; Kersevan, P; Kerzel, U; Kiiskinen, A; King, T; Kjaer, J; 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, H; Lopez, M; 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, P; Palka, H; Papadopoulou, D; 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, E; Polok, G; Poropat, P; Pozdniakov, V; Pukhaeva, N; Pullia, A; Rames, J; Ramler, L; 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; Savoy Navarro, A; Schwickerath, U; Segar, A; 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; Taffard, C; 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, A; 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, J; Weiser, C; Wicke, D; Wickens, J; Wilkinson, G; Winter, M; Witek, M; Yushchenko, O; Zalewska, A; Zalewski, P; Zavrtanik, D; Zhuravlov, V; Zimin, I; Zintchenko, A; Zupan, M.

doi:10.1140/epjc/s2004-01708-6

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The forward-backward asymmetries of the processes e(+) e(-) --> Z --> b (b) over bar and e(+)e(-) --> Z --> c (c) over bar were measured from a sample of hadronic Z decays collected by the DELPHI experiment between 1993 and 1995. Enriched samples of b (b) over bar and c (c) over bar events were obtained using lifetime information. The tagging of b and c quarks in these samples was based on the semileptonic decay channels b/c --> X + mu and b/c --> X + e combined with charge flow information from the hemisphere opposite to the lepton. Combining the A(FB)(b (b) over bar) and A(FB)(c (c) over bar) measurements presented in this paper with published results based on 1991 and 1992 DELPHI data samples, the following pole asymmetries were obtained: A(FB)(0,b) = 0.1021 +/- 0.0052 (stat) +/- 0.0024 (syst) A(FB)(0,c) = 0.0728 +/- 0.0086 (stat) +/- 0.0063 (syst) The effective value of the weak mixing angle derived from these measurements is sin(2) theta(W,eff)(lept) = 0.23170 +/- 0.00097.

Titolo:	Measurement of the forward-backward asymmetries of e(+)e(-)-> Z -> b(b)over-bar and e(+)e(-)-> Z -> c(c)over-bar using prompt leptons
Autori:	Abdallah J Abreu P Adam W Adzic P Albrecht T Alderweireld 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 WD Arnoud Y Ask S Asman B Augustin E Augustinus A Baillon P Ballestrero A Bambade P Barbier R Bardin D Barker G Baroncelli A Battaglia M Baubillier M Becks KH Begalli M Behrmann A Ben Haim E Benekos N Benvenuti A Berat C Berggren M Berntzon L Bertrand D Besancon M Besson N Bloch D Blom M Bluj M Bonesini M Boonekamp M Booth L Borisov G Botner O Bouquet B Bowcock V Boyko I Bracko M Brenner R Brodet E Bruckman P Brunet M Bugge L 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 U Cieslik K Collins P Contri R Cosme G Cossutti F Costa J Crennell D Cuevas J D'Hondt J Dalmau 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 Dris M Eigen G Ekelof T Ellert M Elsing M Santo CE 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 Ceballos GG 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 Herr H Hoffman J Holmgren SO Holt J Houlden A Hultqvist K Jackson N Jarlskog G Jarry P Jeans D Johansson K Johansson D Jonsson P Joram C Jungermann L Kapusta F Katsanevas S Katsoufis E Kernel G Kersevan P Kerzel U Kiiskinen A King T Kjaer J 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 H Lopez M 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 P Palka H Papadopoulou D 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 E Polok G Poropat P Pozdniakov V Pukhaeva N Pullia A Rames J Ramler L 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 Savoy Navarro A Schwickerath U Segar A 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 Taffard C 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 A 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 J Weiser C Wicke D Wickens J Wilkinson G Winter M Witek M Yushchenko O Zalewska A Zalewski P Zavrtanik D Zhuravlov V Zimin I Zintchenko A Zupan M. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2004
Rivista:	THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Citazione:	Measurement of the forward-backward asymmetries of e(+)e(-)-> Z -> b(b)over-bar and e(+)e(-)-> Z -> c(c)over-bar using prompt leptons / Abdallah J; Abreu P; Adam W; Adzic P; Albrecht T; Alderweireld 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 WD; Arnoud Y; Ask S; Asman B; Augustin E; Augustinus A; Baillon P; Ballestrero A; Bambade P; Barbier R; Bardin D; Barker G; Baroncelli A; Battaglia M; Baubillier M; Becks KH; Begalli M; Behrmann A; Ben-Haim E; Benekos N; Benvenuti A; Berat C; Berggren M; Berntzon L; Bertrand D; Besancon M; Besson N; Bloch D; Blom M; Bluj M; Bonesini M; Boonekamp M; Booth L; Borisov G; Botner O; Bouquet B; Bowcock V; Boyko I; Bracko M; Brenner R; Brodet E; Bruckman P; Brunet M; Bugge L; 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 U; Cieslik K; Collins P; Contri R; Cosme G; Cossutti F; Costa J; Crennell D; Cuevas J; D'Hondt J; Dalmau 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; Dris M; Eigen G; Ekelof T; Ellert M; Elsing M; Santo CE; 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; Ceballos GG; 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; Herr H; Hoffman J; Holmgren SO; Holt J; Houlden A; Hultqvist K; Jackson N; Jarlskog G; Jarry P; Jeans D; Johansson K; Johansson D; Jonsson P; Joram C; Jungermann L; Kapusta F; Katsanevas S; Katsoufis E; Kernel G; Kersevan P; Kerzel U; Kiiskinen A; King T; Kjaer J; 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 H; Lopez M; 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 P; Palka H; Papadopoulou D; 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 E; Polok G; Poropat P; Pozdniakov V; Pukhaeva N; Pullia A; Rames J; Ramler L; 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; Savoy-Navarro A; Schwickerath U; Segar A; 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; Taffard C; 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 A; 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 J; Weiser C; Wicke D; Wickens J; Wilkinson G; Winter M; Witek M; Yushchenko O; Zalewska A; Zalewski P; Zavrtanik D; Zhuravlov V; Zimin I; Zintchenko A; Zupan M. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 34:2(2004), pp. 109-125.
Abstract:	The forward-backward asymmetries of the processes e(+) e(-) --> Z --> b (b) over bar and e(+)e(-) --> Z --> c (c) over bar were measured from a sample of hadronic Z decays collected by the DELPHI experiment between 1993 and 1995. Enriched samples of b (b) over bar and c (c) over bar events were obtained using lifetime information. The tagging of b and c quarks in these samples was based on the semileptonic decay channels b/c --> X + mu and b/c --> X + e combined with charge flow information from the hemisphere opposite to the lepton. Combining the A(FB)(b (b) over bar) and A(FB)(c (c) over bar) measurements presented in this paper with published results based on 1991 and 1992 DELPHI data samples, the following pole asymmetries were obtained: A(FB)(0,b) = 0.1021 +/- 0.0052 (stat) +/- 0.0024 (syst) A(FB)(0,c) = 0.0728 +/- 0.0086 (stat) +/- 0.0063 (syst) The effective value of the weak mixing angle derived from these measurements is sin(2) theta(W,eff)(lept) = 0.23170 +/- 0.00097.
Handle:	http://hdl.handle.net/11390/696058
Appare nelle tipologie:	1.1 Articolo in rivista

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