The partial decay width of the Z to <b(b)over bar> quark pairs has been measured by the DELPHI detector at LEP. B-hadrons, containing b-quarks, were tagged by several methods using tracks with large impact parameters to the primary vertex complemented sometimes by event shape variables or using leptons with high transverse momentum relative to the hadron, In order to reduce the systematic uncertainties, in all methods the b-tagging efficiency has been extracted directly from the data. Combining all methods, the value: Gamma(<b(b)over bar>)/Gamma(had) = 0.2216 +/- 0.0016(stat.) +/- 0.0021(syst.) was found, where the <c(c)over bar> production fraction was fixed to its Standard Model value.
Measurement of the partial decay width R(b)(0)=Gamma(b(b)over-bar)/Gamma(had) of the Z with the DELPHI detector at LEP / Abreu P; Adam W; Adye T; Agasi E; Ajinenko I; Aleksan R; Alekseev GD; Alemany R; Allport PP; Almehed S; Amaldi U; Amato S; Andreazza A; Andrieux ML; Antilogus P; Apel WD; Arnoud Y; Asman B; Augustin JE; Augustinus A; Baillon P; Bambade P; Barao F; Barate R; Barbi M; Bardin DY; Baroncelli A; Barring O; Barrio JA; Bartl W; Bates MJ; Battaglia M; Baubillier M; Baudot J; Becks KH; Begalli M; Beilliere P; Belokopytov Y; Benvenuti AC; Berggren M; Bertrand D; Bianchi F; Bigi M; Bilenky MS; Billoir P; Bloch D; Blume M; Blyth S; Bolognese T; Bonesini M; Bonivento W; Booth PSL; Borisov G; Bosio C; Bosworth S; Botner O; Boudinov E; Bouquet B; Bourdarios C; Bowcock TJV; Bozzo M; Branchini P; Brand KD; Brenke T; Brenner RA; Bricman C; Brillault L; Brown RCA; Bruckman P; Brunet JM; Bugge L; Buran T; Burgsmueller T; Buschmann P; Buys A; Cabrera S; Caccia M; Calvi M; Rozas AJC; Camporesi T; Canale V; Canepa M; Cankocak K; Cao F; Carena F; Carroll L; Caso C; Gimenez MVC; Cattai A; Cavallo FR; Cerrito L; Chabaud V; Charpentier P; Chaussard L; Chauveau J; Checchia P; Chelkov GA; Chen M; Chierici R; Chliapnikov P; Chochula P; Chorowicz V; Chudoba J; Cindro V; Collins P; Contreras JL; Contri R; Cortina E; Cosme G; Cossutti F; Crawley HB; Crennell D; Crosetti G; Maestro JC; Czellar S; DahlJensen E; Dahm J; Dalmagne B; Dam M; Damgaard G; Dauncey PD; Davenport M; DaSilva W; Defoix C; Deghorain A; DellaRicca G; Delpierre P; Demaria N; DeAngelis A; DeBoer W; DeBrabandere S; DeClercq C; DelaVaissiere C; DeLotto B; DeMin A; DePaula L; DeSaintJean C; Dijkstra H; DiCiaccio L; Djama F; Dolbeau J; Donszelmann M; Doroba K; Dracos M; Drees J; Drees KA; Dris M; Dufour Y; Edsall D; Ehret R; Eigen G; Ekelof T; Ekspong G; Elsing M; Engel JP; Ershaidat N; Erzen B; Santo ME; Falk E; Fassouliotis D; Feindt M; Fenyuk A; Ferrer A; Filippas TA; Firestone A; Fischer PA; Foeth H; Fokitis E; Fontanelli F; Formenti F; Franek B; Frenkiel P; Fries DC; Frodesen AG; Fruhwirth R; FuldaQuenzer F; Fuster J; Galloni A; Gamba D; Gandelman M; Garcia C; Garcia J; Gaspar C; Gasparini U; Gavillet P; Gazis EN; Gele D; Gerber JP; Gibbs M; Gokieli R; Golob B; Gopal G; Gorn L; Gorski M; Gouz Y; Gracco V; Graziani E; Grosdidier G; Grzelak K; Gumenyuk S; Gunnarsson P; Gunther M; Guy J; Hahn F; Hahn S; Hajduk Z; Hallgren A; Hamacher K; Hao W; Harris FJ; Hedberg V; Henriques R; Hernandez JJ; Herquet P; Herr H; Hessing TL; Higon E; Hilke HJ; Hill TS; Holmgren SO; Holt PJ; Holthuizen D; Hoorelbeke S; Houlden M; Hrubec J; Huet K; Hultqvist K; Jackson JN; Jacobsson R; Jalocha P; Janik R; Jarlskog C; Jarlskog G; Jarry P; JeanMarie B; Johansson EK; Jonsson L; Jonsson P; Joram C; Juillot P; Kaiser M; Kapusta F; Karafasoulis K; Karlsson M; Karvelas E; Katargin A; Katsanevas S; Katsoufis EC; Keranen R; Khokhlov Y; Khomenko BA; Khovanski NN; King B; Kjaer NJ; Klein H; Klovning A; Kluit P; Koene B; Kokkinias P; Koratzinos M; Korcyl K; Kourkoumelis C; Kouznetsov O; Kramer PH; Krammer M; Kreuter C; Kronkvist I; Krumstein Z; Krupinski W; Kubinec P; Kucewicz W; Kurvinen K; Lacasta C; Laktineh I; Lamblot S; Lamsa JW; Lanceri L; Lane DW; Langefeld P; Last I; Laugier JP; Lauhakangas R; Ledroit F; Lefebure V; Legan CK; Leitner R; Lemoigne Y; Lemonne J; Lenzen G; Lepeltier V; Lesiak T; Liko D; Lindner R; Lipniacka A; Lippi I; Loerstad B; Loken JG; Lopez JM; Loukas D; Lutz P; Lyons L; MacNaughton J; Maehlum G; Maio A; Malychev V; Mandl F; Marco J; Marco R; Marechal B; Margoni M; Marin JC; Mariotti C; Markou A; Maron T; MartinezRivero C; MartinezVidal F; Garcia SMI; Masik J; Matorras F; Matteuzzi C; Matthiae G; Mazzucato M; McCubbin M; McKay R; McNulty R; Medbo J; Merk M; Meroni C; Meyer S; Meyer WT; Miagkov A; Michelotto M; Migliore E; Mirabito L; Mitaroff WA; Mjoernmark U; Moa T; Moeller R; Moenig K; Monge MR; Morettini P; Mueller H; Mundim LM; Murray WJ; Muryn B; Myatt G; Naraghi F; Navarria FL; Navas S; Nawrocki K; Negri P; Neumann W; Neumeister N; Nicolaidou R; Nielsen BS; Nieuwenhuizen M; Nikolaenko V; Niss P; Nomerotski A; Normand A; OberschulteBeckmann W; Obraztsov V; Olshevski AG; Onofre A; Orava R; Osterberg K; Ouraou A; Paganini P; Paganoni M; Pages P; Palka H; Papadopoulou TD; Papageorgiou K; Pape L; Parkes C; Parodi F; Passeri A; Pegoraro M; Pernegger H; Pernicka M; Perrotta A; Petridou C; Petrolini A; Petrovyck M; Phillips HT; Piana G; Pierre F; Pimenta M; Pindo M; Plaszczynski S; Podobrin O; Pol ME; Polok G; Poropat P; Pozdniakov V; Prest M; Privitera P; Pukhaeva N; Pullia A; Radojicic D; Ragazzi S; Rahmani H; Rames J; Ratoff PN; Read AL; Reale M; Rebecchi P; Redaelli NG; Regler M; Reid D; Renton PB; Resvanis LK; Richard F; Richardson J; Ridky J; Rinaudo G; Ripp I; Roncagliolo I; Ronchese P; Roos L; Rosenberg EI; Rosso E; Roudeau P; Rovelli T; Ruckstuhl W; RuhlmannKleider V; Ruiz A; Rybicki K; Saarikko H; Sacquin Y; Sadovsky A; Sajot G; Salt J; Sanchez J; Sannino M; Schimmelpfennig M; Schneider H; Schwickerath U; Schyns MAE; Sciolla G; Scuri F; Seager P; Sedykh Y; Segar AM; Seitz A; Sekulin R; Shellard RC; Siccama I; Siegrist P; Simonetti S; Simonetto F; Sisakian AN; Sitar B; Skaali TB; Smadja G; Smirnov N; Smirnova O; Smith GR; Solovianov O; Sosnowski R; SouzaSantos D; Spassov T; Spiriti E; Sponholz P; Squarcia S; Stanescu C; Stapnes S; Stavitski I; Stichelbaut F; Stocchi A; Strauss J; Strub R; Stugu B; Szczekowski M; Szeptycka M; Tabarelli T; Tavernet JP; Tchikilev O; Tilquin A; Timmermans J; Tkatchev LG; Todorov T; Toet DZ; Tomaradze A; Tome B; Tonazzo A; Tortora L; Transtromer G; Treille D; Trischuk W; Tristram G; Trombini A; Troncon C; Tsirou A; Turluer ML; Tyapkin IA; Tyndel M; Tzamarias S; Ueberschaer B; Ullaland O; Uvarov V; Valenti G; Vallazza E; VanderVelde C; VanApeldoorn GW; VanDam P; VanDoninck WK; VanEldik J; Vassilopoulos N; Vegni G; Ventura L; Venus W; Verbeure F; Verlato M; Vertogradov LS; Vilanova D; Vincent P; Vitale L; Vlasov E; Vodopyanov AS; Vrba V; Wahlen H; Walck C; Waldner F; Weierstall M; Weilhammer P; Weiser C; Wetherell AM; Wicke D; Wickens JH; Wielers M; Wilkinson GR; Williams WSC; Winter M; Witek M; Woschnagg K; Yip K; Yushchenko O; Zach F; Zaitsev A; Zalewska A; Zalewski P; Zavrtanik D; Zevgolatakos E; Zimin NI; Zito M; Zontar D; Zuberi R; Zucchelli GC; Zumerle G. - In: ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS. - ISSN 0170-9739. - 70:4(1996), pp. 531-547.
Titolo: | Measurement of the partial decay width R(b)(0)=Gamma(b(b)over-bar)/Gamma(had) of the Z with the DELPHI detector at LEP |
Autori: | |
Data di pubblicazione: | 1996 |
Rivista: | |
Citazione: | Measurement of the partial decay width R(b)(0)=Gamma(b(b)over-bar)/Gamma(had) of the Z with the DELPHI detector at LEP / Abreu P; Adam W; Adye T; Agasi E; Ajinenko I; Aleksan R; Alekseev GD; Alemany R; Allport PP; Almehed S; Amaldi U; Amato S; Andreazza A; Andrieux ML; Antilogus P; Apel WD; Arnoud Y; Asman B; Augustin JE; Augustinus A; Baillon P; Bambade P; Barao F; Barate R; Barbi M; Bardin DY; Baroncelli A; Barring O; Barrio JA; Bartl W; Bates MJ; Battaglia M; Baubillier M; Baudot J; Becks KH; Begalli M; Beilliere P; Belokopytov Y; Benvenuti AC; Berggren M; Bertrand D; Bianchi F; Bigi M; Bilenky MS; Billoir P; Bloch D; Blume M; Blyth S; Bolognese T; Bonesini M; Bonivento W; Booth PSL; Borisov G; Bosio C; Bosworth S; Botner O; Boudinov E; Bouquet B; Bourdarios C; Bowcock TJV; Bozzo M; Branchini P; Brand KD; Brenke T; Brenner RA; Bricman C; Brillault L; Brown RCA; Bruckman P; Brunet JM; Bugge L; Buran T; Burgsmueller T; Buschmann P; Buys A; Cabrera S; Caccia M; Calvi M; Rozas AJC; Camporesi T; Canale V; Canepa M; Cankocak K; Cao F; Carena F; Carroll L; Caso C; Gimenez MVC; Cattai A; Cavallo FR; Cerrito L; Chabaud V; Charpentier P; Chaussard L; Chauveau J; Checchia P; Chelkov GA; Chen M; Chierici R; Chliapnikov P; Chochula P; Chorowicz V; Chudoba J; Cindro V; Collins P; Contreras JL; Contri R; Cortina E; Cosme G; Cossutti F; Crawley HB; Crennell D; Crosetti G; Maestro JC; Czellar S; DahlJensen E; Dahm J; Dalmagne B; Dam M; Damgaard G; Dauncey PD; Davenport M; DaSilva W; Defoix C; Deghorain A; DellaRicca G; Delpierre P; Demaria N; DeAngelis A; DeBoer W; DeBrabandere S; DeClercq C; DelaVaissiere C; DeLotto B; DeMin A; DePaula L; DeSaintJean C; Dijkstra H; DiCiaccio L; Djama F; Dolbeau J; Donszelmann M; Doroba K; Dracos M; Drees J; Drees KA; Dris M; Dufour Y; Edsall D; Ehret R; Eigen G; Ekelof T; Ekspong G; Elsing M; Engel JP; Ershaidat N; Erzen B; Santo ME; Falk E; Fassouliotis D; Feindt M; Fenyuk A; Ferrer A; Filippas TA; Firestone A; Fischer PA; Foeth H; Fokitis E; Fontanelli F; Formenti F; Franek B; Frenkiel P; Fries DC; Frodesen AG; Fruhwirth R; FuldaQuenzer F; Fuster J; Galloni A; Gamba D; Gandelman M; Garcia C; Garcia J; Gaspar C; Gasparini U; Gavillet P; Gazis EN; Gele D; Gerber JP; Gibbs M; Gokieli R; Golob B; Gopal G; Gorn L; Gorski M; Gouz Y; Gracco V; Graziani E; Grosdidier G; Grzelak K; Gumenyuk S; Gunnarsson P; Gunther M; Guy J; Hahn F; Hahn S; Hajduk Z; Hallgren A; Hamacher K; Hao W; Harris FJ; Hedberg V; Henriques R; Hernandez JJ; Herquet P; Herr H; Hessing TL; Higon E; Hilke HJ; Hill TS; Holmgren SO; Holt PJ; Holthuizen D; Hoorelbeke S; Houlden M; Hrubec J; Huet K; Hultqvist K; Jackson JN; Jacobsson R; Jalocha P; Janik R; Jarlskog C; Jarlskog G; Jarry P; JeanMarie B; Johansson EK; Jonsson L; Jonsson P; Joram C; Juillot P; Kaiser M; Kapusta F; Karafasoulis K; Karlsson M; Karvelas E; Katargin A; Katsanevas S; Katsoufis EC; Keranen R; Khokhlov Y; Khomenko BA; Khovanski NN; King B; Kjaer NJ; Klein H; Klovning A; Kluit P; Koene B; Kokkinias P; Koratzinos M; Korcyl K; Kourkoumelis C; Kouznetsov O; Kramer PH; Krammer M; Kreuter C; Kronkvist I; Krumstein Z; Krupinski W; Kubinec P; Kucewicz W; Kurvinen K; Lacasta C; Laktineh I; Lamblot S; Lamsa JW; Lanceri L; Lane DW; Langefeld P; Last I; Laugier JP; Lauhakangas R; Ledroit F; Lefebure V; Legan CK; Leitner R; Lemoigne Y; Lemonne J; Lenzen G; Lepeltier V; Lesiak T; Liko D; Lindner R; Lipniacka A; Lippi I; Loerstad B; Loken JG; Lopez JM; Loukas D; Lutz P; Lyons L; MacNaughton J; Maehlum G; Maio A; Malychev V; Mandl F; Marco J; Marco R; Marechal B; Margoni M; Marin JC; Mariotti C; Markou A; Maron T; MartinezRivero C; MartinezVidal F; Garcia SMI; Masik J; Matorras F; Matteuzzi C; Matthiae G; Mazzucato M; McCubbin M; McKay R; McNulty R; Medbo J; Merk M; Meroni C; Meyer S; Meyer WT; Miagkov A; Michelotto M; Migliore E; Mirabito L; Mitaroff WA; Mjoernmark U; Moa T; Moeller R; Moenig K; Monge MR; Morettini P; Mueller H; Mundim LM; Murray WJ; Muryn B; Myatt G; Naraghi F; Navarria FL; Navas S; Nawrocki K; Negri P; Neumann W; Neumeister N; Nicolaidou R; Nielsen BS; Nieuwenhuizen M; Nikolaenko V; Niss P; Nomerotski A; Normand A; OberschulteBeckmann W; Obraztsov V; Olshevski AG; Onofre A; Orava R; Osterberg K; Ouraou A; Paganini P; Paganoni M; Pages P; Palka H; Papadopoulou TD; Papageorgiou K; Pape L; Parkes C; Parodi F; Passeri A; Pegoraro M; Pernegger H; Pernicka M; Perrotta A; Petridou C; Petrolini A; Petrovyck M; Phillips HT; Piana G; Pierre F; Pimenta M; Pindo M; Plaszczynski S; Podobrin O; Pol ME; Polok G; Poropat P; Pozdniakov V; Prest M; Privitera P; Pukhaeva N; Pullia A; Radojicic D; Ragazzi S; Rahmani H; Rames J; Ratoff PN; Read AL; Reale M; Rebecchi P; Redaelli NG; Regler M; Reid D; Renton PB; Resvanis LK; Richard F; Richardson J; Ridky J; Rinaudo G; Ripp I; Roncagliolo I; Ronchese P; Roos L; Rosenberg EI; Rosso E; Roudeau P; Rovelli T; Ruckstuhl W; RuhlmannKleider V; Ruiz A; Rybicki K; Saarikko H; Sacquin Y; Sadovsky A; Sajot G; Salt J; Sanchez J; Sannino M; Schimmelpfennig M; Schneider H; Schwickerath U; Schyns MAE; Sciolla G; Scuri F; Seager P; Sedykh Y; Segar AM; Seitz A; Sekulin R; Shellard RC; Siccama I; Siegrist P; Simonetti S; Simonetto F; Sisakian AN; Sitar B; Skaali TB; Smadja G; Smirnov N; Smirnova O; Smith GR; Solovianov O; Sosnowski R; SouzaSantos D; Spassov T; Spiriti E; Sponholz P; Squarcia S; Stanescu C; Stapnes S; Stavitski I; Stichelbaut F; Stocchi A; Strauss J; Strub R; Stugu B; Szczekowski M; Szeptycka M; Tabarelli T; Tavernet JP; Tchikilev O; Tilquin A; Timmermans J; Tkatchev LG; Todorov T; Toet DZ; Tomaradze A; Tome B; Tonazzo A; Tortora L; Transtromer G; Treille D; Trischuk W; Tristram G; Trombini A; Troncon C; Tsirou A; Turluer ML; Tyapkin IA; Tyndel M; Tzamarias S; Ueberschaer B; Ullaland O; Uvarov V; Valenti G; Vallazza E; VanderVelde C; VanApeldoorn GW; VanDam P; VanDoninck WK; VanEldik J; Vassilopoulos N; Vegni G; Ventura L; Venus W; Verbeure F; Verlato M; Vertogradov LS; Vilanova D; Vincent P; Vitale L; Vlasov E; Vodopyanov AS; Vrba V; Wahlen H; Walck C; Waldner F; Weierstall M; Weilhammer P; Weiser C; Wetherell AM; Wicke D; Wickens JH; Wielers M; Wilkinson GR; Williams WSC; Winter M; Witek M; Woschnagg K; Yip K; Yushchenko O; Zach F; Zaitsev A; Zalewska A; Zalewski P; Zavrtanik D; Zevgolatakos E; Zimin NI; Zito M; Zontar D; Zuberi R; Zucchelli GC; Zumerle G. - In: ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS. - ISSN 0170-9739. - 70:4(1996), pp. 531-547. |
Abstract: | The partial decay width of the Z to <b(b)over bar> quark pairs has been measured by the DELPHI detector at LEP. B-hadrons, containing b-quarks, were tagged by several methods using tracks with large impact parameters to the primary vertex complemented sometimes by event shape variables or using leptons with high transverse momentum relative to the hadron, In order to reduce the systematic uncertainties, in all methods the b-tagging efficiency has been extracted directly from the data. Combining all methods, the value: Gamma(<b(b)over bar>)/Gamma(had) = 0.2216 +/- 0.0016(stat.) +/- 0.0021(syst.) was found, where the <c(c)over bar> production fraction was fixed to its Standard Model value. |
Handle: | http://hdl.handle.net/11390/884146 |
Appare nelle tipologie: | 1.1 Articolo in rivista |