Precision measurement of the ratio B(t→Wb)/B(t→Wq) and extraction of V(tb)

V M Abazov; B Abbott; B S Acharya; M Adams; T Adams; G D Alexeev; G Alkhazov; A Alton; G Alverson; G A Alves; M Aoki; M Arov; A Askew; B Åsman; O Atramentov; C Avila; J BackusMayes; F Badaud; L Bagby; B Baldin; D V Bandurin; S Banerjee; E Barberis; P Baringer; J Barreto; J F Bartlett; U Bassler; V Bazterra; S Beale; A Bean; M Begalli; M Begel; C Belanger-Champagne; L Bellantoni; S B Beri; G Bernardi; R Bernhard; I Bertram; M Besançon; R Beuselinck; V A Bezzubov; P C Bhat; V Bhatnagar; G Blazey; S Blessing; K Bloom; A Boehnlein; D Boline; E E Boos; G Borissov; T Bose; A Brandt; O Brandt; R Brock; G Brooijmans; A Bross; D Brown; J Brown; X B Bu; M Buehler; V Buescher; V Bunichev; S Burdin; T H Burnett; C P Buszello; B Calpas; E Camacho-Pérez; M A Carrasco-Lizarraga; B C K Casey; H Castilla-Valdez; S Chakrabarti; D Chakraborty; K M Chan; A Chandra; G Chen; S Chevalier-Théry; D K Cho; S W Cho; S Choi; B Choudhary; S Cihangir; D Claes; J Clutter; M Cooke; W E Cooper; M Corcoran; F Couderc; M-C Cousinou; A Croc; D Cutts; A Das; G Davies; K De; S J de Jong; E De La Cruz-Burelo; F Déliot; M Demarteau; R Demina; D Denisov; S P Denisov; S Desai; C Deterre; K DeVaughan; H T Diehl; M Diesburg; P F Ding; A Dominguez; T Dorland; A Dubey; L V Dudko; D Duggan; A Duperrin; S Dutt; A Dyshkant; M Eads; D Edmunds; J Ellison; V D Elvira; Y Enari; H Evans; A Evdokimov; V N Evdokimov; G Facini; T Ferbel; F Fiedler; F Filthaut; W Fisher; H E Fisk; M Fortner; H Fox; S Fuess; A Garcia-Bellido; V Gavrilov; P Gay; W Geng; D Gerbaudo; C E Gerber; Y Gershtein; G Ginther; G Golovanov; A Goussiou; P D Grannis; S Greder; H Greenlee; Z D Greenwood; E M Gregores; G Grenier; Ph Gris; J-F Grivaz; A Grohsjean; S Grünendahl; M W Grünewald; T Guillemin; F Guo; G Gutierrez; P Gutierrez; A Haas; S Hagopian; J Haley; L Han; K Harder; A Harel; J M Hauptman; J Hays; T Head; T Hebbeker; D Hedin; H Hegab; A P Heinson; U Heintz; C Hensel; I Heredia-De La Cruz; K Herner; G Hesketh; M D Hildreth; R Hirosky; T Hoang; J D Hobbs; B Hoeneisen; M Hohlfeld; Z Hubacek; N Huske; V Hynek; I Iashvili; Y Ilchenko; R Illingworth; A S Ito; S Jabeen; M Jaffré; D Jamin; A Jayasinghe; R Jesik; K Johns; M Johnson; D Johnston; A Jonckheere; P Jonsson; J Joshi; A W Jung; A Juste; K Kaadze; E Kajfasz; D Karmanov; P A Kasper; I Katsanos; R Kehoe; S Kermiche; N Khalatyan; A Khanov; A Kharchilava; Y N Kharzheev; M H Kirby; J M Kohli; A V Kozelov; J Kraus; S Kulikov; A Kumar; A Kupco; T Kurča; V A Kuzmin; J Kvita; S Lammers; G Landsberg; P Lebrun; H S Lee; S W Lee; W M Lee; J Lellouch; L Li; Q Z Li; S M Lietti; J K Lim; D Lincoln; J Linnemann; V V Lipaev; R Lipton; Y Liu; Z Liu; A Lobodenko; M Lokajicek; R Lopes de Sa; H J Lubatti; R Luna-Garcia; A L Lyon; A K A Maciel; D Mackin; R Madar; R Magaña-Villalba; S Malik; V L Malyshev; Y Maravin; J Martínez-Ortega; R McCarthy; C L McGivern; M M Meijer; A Melnitchouk; D Menezes; P G Mercadante; M Merkin; A Meyer; J Meyer; F Miconi; N K Mondal; G S Muanza; M Mulhearn; E Nagy; M Naimuddin; M Narain; R Nayyar; H A Neal; J P Negret; P Neustroev; S F Novaes; T Nunnemann; G Obrant; J Orduna; N Osman; J Osta; G J Otero y Garzón; M Padilla; A Pal; N Parashar; V Parihar; S K Park; J Parsons; R Partridge; N Parua; A Patwa; B Penning; M Perfilov; K Peters; Y Peters; K Petridis; G Petrillo; P Pétroff; R Piegaia; M-A Pleier; P L M Podesta-Lerma; V M Podstavkov; P Polozov; A V Popov; M Prewitt; D Price; N Prokopenko; S Protopopescu; J Qian; A Quadt; B Quinn; M S Rangel; K Ranjan; P N Ratoff; I Razumov; P Renkel; M Rijssenbeek; I Ripp-Baudot; F Rizatdinova; M Rominsky; A Ross; C Royon; P Rubinov; R Ruchti; G Safronov; G Sajot; P Salcido; A Sánchez-Hernández; M P Sanders; B Sanghi; A S Santos; G Savage; L Sawyer; T Scanlon; R D Schamberger; Y Scheglov; H Schellman; T Schliephake; S Schlobohm; C Schwanenberger; R Schwienhorst; J Sekaric; H Severini; E Shabalina; V Shary; A A Shchukin; R K Shivpuri; V Simak; V Sirotenko; P Skubic; P Slattery; D Smirnov; K J Smith; G R Snow; J Snow; S Snyder; S Söldner-Rembold; L Sonnenschein; K Soustruznik; J Stark; V Stolin; D A Stoyanova; M Strauss; D Strom; L Stutte; L Suter; P Svoisky; M Takahashi; A Tanasijczuk; W Taylor; M Titov; V V Tokmenin; Y-T Tsai; D Tsybychev; B Tuchming; C Tully; L Uvarov; S Uvarov; S Uzunyan; R Van Kooten; W M van Leeuwen; N Varelas; E W Varnes; I A Vasilyev; P Verdier; L S Vertogradov; M Verzocchi; M Vesterinen; D Vilanova; P Vokac; H D Wahl; M H L S Wang; J Warchol; G Watts; M Wayne; M Weber; L Welty-Rieger; A White; D Wicke; M R J Williams; G W Wilson; M Wobisch; D R Wood; T R Wyatt; Y Xie; C Xu; S Yacoob; R Yamada; W-C Yang; T Yasuda; Y A Yatsunenko; Z Ye; H Yin; K Yip; S W Youn; J Yu; S Zelitch; T Zhao; B Zhou; J Zhu; M Zielinski; D Zieminska; L Zivkovic; D0 Collaboration

doi:10.1103/PhysRevLett.107.121802

Precision measurement of the ratio B(t→Wb)/B(t→Wq) and extraction of V(tb)

Phys Rev Lett. 2011 Sep 16;107(12):121802. doi: 10.1103/PhysRevLett.107.121802. Epub 2011 Sep 15.

Authors

V M Abazov¹, B Abbott, B S Acharya, M Adams, T Adams, G D Alexeev, G Alkhazov, A Alton, G Alverson, G A Alves, M Aoki, M Arov, A Askew, B Åsman, O Atramentov, C Avila, J BackusMayes, F Badaud, L Bagby, B Baldin, D V Bandurin, S Banerjee, E Barberis, P Baringer, J Barreto, J F Bartlett, U Bassler, V Bazterra, S Beale, A Bean, M Begalli, M Begel, C Belanger-Champagne, L Bellantoni, S B Beri, G Bernardi, R Bernhard, I Bertram, M Besançon, R Beuselinck, V A Bezzubov, P C Bhat, V Bhatnagar, G Blazey, S Blessing, K Bloom, A Boehnlein, D Boline, E E Boos, G Borissov, T Bose, A Brandt, O Brandt, R Brock, G Brooijmans, A Bross, D Brown, J Brown, X B Bu, M Buehler, V Buescher, V Bunichev, S Burdin, T H Burnett, C P Buszello, B Calpas, E Camacho-Pérez, M A Carrasco-Lizarraga, B C K Casey, H Castilla-Valdez, S Chakrabarti, D Chakraborty, K M Chan, A Chandra, G Chen, S Chevalier-Théry, D K Cho, S W Cho, S Choi, B Choudhary, S Cihangir, D Claes, J Clutter, M Cooke, W E Cooper, M Corcoran, F Couderc, M-C Cousinou, A Croc, D Cutts, A Das, G Davies, K De, S J de Jong, E De La Cruz-Burelo, F Déliot, M Demarteau, R Demina, D Denisov, S P Denisov, S Desai, C Deterre, K DeVaughan, H T Diehl, M Diesburg, P F Ding, A Dominguez, T Dorland, A Dubey, L V Dudko, D Duggan, A Duperrin, S Dutt, A Dyshkant, M Eads, D Edmunds, J Ellison, V D Elvira, Y Enari, H Evans, A Evdokimov, V N Evdokimov, G Facini, T Ferbel, F Fiedler, F Filthaut, W Fisher, H E Fisk, M Fortner, H Fox, S Fuess, A Garcia-Bellido, V Gavrilov, P Gay, W Geng, D Gerbaudo, C E Gerber, Y Gershtein, G Ginther, G Golovanov, A Goussiou, P D Grannis, S Greder, H Greenlee, Z D Greenwood, E M Gregores, G Grenier, Ph Gris, J-F Grivaz, A Grohsjean, S Grünendahl, M W Grünewald, T Guillemin, F Guo, G Gutierrez, P Gutierrez, A Haas, S Hagopian, J Haley, L Han, K Harder, A Harel, J M Hauptman, J Hays, T Head, T Hebbeker, D Hedin, H Hegab, A P Heinson, U Heintz, C Hensel, I Heredia-De La Cruz, K Herner, G Hesketh, M D Hildreth, R Hirosky, T Hoang, J D Hobbs, B Hoeneisen, M Hohlfeld, Z Hubacek, N Huske, V Hynek, I Iashvili, Y Ilchenko, R Illingworth, A S Ito, S Jabeen, M Jaffré, D Jamin, A Jayasinghe, R Jesik, K Johns, M Johnson, D Johnston, A Jonckheere, P Jonsson, J Joshi, A W Jung, A Juste, K Kaadze, E Kajfasz, D Karmanov, P A Kasper, I Katsanos, R Kehoe, S Kermiche, N Khalatyan, A Khanov, A Kharchilava, Y N Kharzheev, M H Kirby, J M Kohli, A V Kozelov, J Kraus, S Kulikov, A Kumar, A Kupco, T Kurča, V A Kuzmin, J Kvita, S Lammers, G Landsberg, P Lebrun, H S Lee, S W Lee, W M Lee, J Lellouch, L Li, Q Z Li, S M Lietti, J K Lim, D Lincoln, J Linnemann, V V Lipaev, R Lipton, Y Liu, Z Liu, A Lobodenko, M Lokajicek, R Lopes de Sa, H J Lubatti, R Luna-Garcia, A L Lyon, A K A Maciel, D Mackin, R Madar, R Magaña-Villalba, S Malik, V L Malyshev, Y Maravin, J Martínez-Ortega, R McCarthy, C L McGivern, M M Meijer, A Melnitchouk, D Menezes, P G Mercadante, M Merkin, A Meyer, J Meyer, F Miconi, N K Mondal, G S Muanza, M Mulhearn, E Nagy, M Naimuddin, M Narain, R Nayyar, H A Neal, J P Negret, P Neustroev, S F Novaes, T Nunnemann, G Obrant, J Orduna, N Osman, J Osta, G J Otero y Garzón, M Padilla, A Pal, N Parashar, V Parihar, S K Park, J Parsons, R Partridge, N Parua, A Patwa, B Penning, M Perfilov, K Peters, Y Peters, K Petridis, G Petrillo, P Pétroff, R Piegaia, M-A Pleier, P L M Podesta-Lerma, V M Podstavkov, P Polozov, A V Popov, M Prewitt, D Price, N Prokopenko, S Protopopescu, J Qian, A Quadt, B Quinn, M S Rangel, K Ranjan, P N Ratoff, I Razumov, P Renkel, M Rijssenbeek, I Ripp-Baudot, F Rizatdinova, M Rominsky, A Ross, C Royon, P Rubinov, R Ruchti, G Safronov, G Sajot, P Salcido, A Sánchez-Hernández, M P Sanders, B Sanghi, A S Santos, G Savage, L Sawyer, T Scanlon, R D Schamberger, Y Scheglov, H Schellman, T Schliephake, S Schlobohm, C Schwanenberger, R Schwienhorst, J Sekaric, H Severini, E Shabalina, V Shary, A A Shchukin, R K Shivpuri, V Simak, V Sirotenko, P Skubic, P Slattery, D Smirnov, K J Smith, G R Snow, J Snow, S Snyder, S Söldner-Rembold, L Sonnenschein, K Soustruznik, J Stark, V Stolin, D A Stoyanova, M Strauss, D Strom, L Stutte, L Suter, P Svoisky, M Takahashi, A Tanasijczuk, W Taylor, M Titov, V V Tokmenin, Y-T Tsai, D Tsybychev, B Tuchming, C Tully, L Uvarov, S Uvarov, S Uzunyan, R Van Kooten, W M van Leeuwen, N Varelas, E W Varnes, I A Vasilyev, P Verdier, L S Vertogradov, M Verzocchi, M Vesterinen, D Vilanova, P Vokac, H D Wahl, M H L S Wang, J Warchol, G Watts, M Wayne, M Weber, L Welty-Rieger, A White, D Wicke, M R J Williams, G W Wilson, M Wobisch, D R Wood, T R Wyatt, Y Xie, C Xu, S Yacoob, R Yamada, W-C Yang, T Yasuda, Y A Yatsunenko, Z Ye, H Yin, K Yip, S W Youn, J Yu, S Zelitch, T Zhao, B Zhou, J Zhu, M Zielinski, D Zieminska, L Zivkovic; D0 Collaboration

Affiliation

¹ Joint Institute for Nuclear Research, Dubna, Russia.

PMID: 22026765
DOI: 10.1103/PhysRevLett.107.121802

Abstract

We present a measurement of the ratio of top quark branching fractions R=B(t→Wb)/B(t→Wq), where q can be a d, s, or b quark, in the lepton+jets and dilepton tt final states. The measurement uses data from 5.4 fb(-1) of pp collisions collected with the D0 detector at the Fermilab Tevatron Collider. We measure R=0.90±0.04, and we extract the Cabibbo-Kobayashi-Maskawa (CKM) matrix element |V(tb)| as |V(tb)|=0.95±0.02, assuming unitarity of the 3×3 CKM matrix.