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Measurement of the Z$^0$ branching fraction to b quark pairs using the boosted sphericity product

Authors :
Abreu, P.
Adam, W.
Adami, F.
Adye, T.
Akesson, T.
Alekseev, G. D.
Allen, P.
Almehed, S.
Alvsvaag, S. J.
Amaldi, U.
Anassontzis, E.
Antilogus, P.
Apel, W. D.
Apsimon, R. J.
Asman, B.
E Augustin, J.
Augustinus, A.
Baillon, P.
Bambade, P.
Barao, F.
Barate, R.
Guido Barbiellini
Yu Bardin, D.
Baroncelli, A.
Barring, O.
Bartl, W.
Bates, M. J.
Battaglia, M.
Baubillier, M.
Becks, K. H.
Beeston, C. J.
Begalli, M.
Beilliere, P.
Yu. Belokopytov
Beltran, P.
Benedic, D.
Benlloch, J. M.
Berggren, M.
Bertrand, D.
Bianchi, F.
Bilenkii, M. S.
Billoir, P.
Bjarne, J.
Bloch, D.
Blyth, S.
Bocci, V.
Bogolubov, P. N.
Bolognese, T.
Bonesini, M.
Bonivento, W.
Booth, P. S. L.
Borgeaud, P.
Borisov, G.
Borner, H.
Bosio, C.
Bostjancic, B.
Botner, O.
Bouquet, B.
Bourdarios, C.
Bowcock, T. J. V.
Bozzo, M.
Braibant, S.
Branchini, P.
Brand, K. D.
Brenner, R. A.
Briand, H.
Bricman, C.
Brown, R. C. A.
Brummer, N.
Brunet, J. M.
Bugge, L.
Buran, T.
Burmeister, H.
Buytaert, J. A. M. A.
Caccia, M.
Calvi, M.
Camacho Rozas, A. J.
Camporesi, T.
Canale, V.
Cao, F.
Carena, F.
Carroll, L.
Caso, C.
Castelli, E.
Castillo Gimenez, M. V.
Cattai, A.
Cavallo, F. R.
Cerrito, L.
Chan, A.
Chapkin, M.
Charpentier, P.
Chaussard, L.
Chauveau, J.
Checchia, P.
Chelkov, G. A.
Chevalier, L.
Chliapnikov, P.
Chorowicz, V.
Cirio, R.
Clara, M. P.
Collins, P.
Contreras, J. L.
Contri, R.
Cosme, G.
Couchot, F.
Crawley, H. B.
Crennell, D.
Crosetti, G.
Crozon, M.
Cuevas Maestro, J.
Czellar, S.
Sylvie DAGORET
Dahl-Jensen, E.
Almagne, B. D.
Dam, M.
Damgaard, G.
Darbo, G.
Daubie, E.
Dauncey, P. D.
Davenport, M.
David, P.
Da Silva, W.
Defoix, C.
Delikaris, D.
Delorme, S.
Delpierre, P.
Demaria, N.
Angelis, A.
Beer, M.
Boeck, H.
Boer, W.
Clercq, C.
Fez Laso, M. D. M.
Groot, N.
La Vaissiere, C.
Lotto, B.
Min, A.
Dijkstra, H.
Di Ciaccio, L.
Djama, F.
Dolbeau, J.
Donszelmann, M.
Doroba, K.
Dracos, M.
Drees, J.
Dris, M.
Dufour, Y.
Dulinski, W.
Eek, L. O.
Eerola, P. A.
Ekelof, T.
Ekspong, G.
Elliot Peisert, A.
Engel, J. P.
Fassouliotis, D.
Feindt, M.
Fernandez Alonso, M.
Ferrer, A.
Filippas, T. A.
Firestone, A.
Foeth, H.
Fokitis, E.
Folegati, P.
Fontanelli, F.
Forbes, K. A. J.
Franek, B.
Frenkiel, P.
Fries, D. C.
Frodesen, A. G.
Fruhwirth, R.
Fulda-Quenzer, F.
Furnival, K.
Furstenau, H.
Fuster, J.
Galeazzi, G.
Gamba, D.
Garcia, C.
Garcia, J.
Gaspar, C.
Gasparini, U.
Gavillet, P.
Gazis, E. N.
Gerber, J. P.
Giacomelli, P.
Gokieli, R.
Golovatyuk, V. M.
Gomez, Y. Cadenas J. J.
Goobar, A.
Gopal, G.
Gorski, M.
Gracco, V.
Grant, A.
Grard, F.
Graziani, E.
Grosdidier, G.
Gross, E.
Grosse-Wiesmann, P.
Grossetete, B.
Gumenyuk, S.
Guy, J.
Hahn, F.
Hahn, M.
Haider, S.
Hajduk, Z.
Hakansson, A.
Hallgren, A.
Hamacher, K.
Hamel Monchenault, G.
Hao, W.
Harris, F. J.
Heck, B. W.
Henkes, T.
Hernandez, J. J.
Herquet, P.
Herr, H.
Hessing, T. L.
Hietanen, I.
Higgins, C. O.
Higon, E.
Hilke, H. J.
Hodgson, S. D.
Hofmokl, T.
Holmes, R.
Holmgren, S. O.
Holthuizen, D.
Honore, P. F.
Hooper, J. E.
Houlden, M.
Hrubec, J.
Hulth, P. O.
Hultqvist, K.
Husson, D.
Ioannou, P.
Isenhower, D.
Iversen, P. S.
Jackson, J. N.
Jalocha, P.
Jarlskog, G.
Jarry, P.
Jean-Marie, B.
Johansson, E. K.
Johnson, D.
Jonker, M.
Jonsson, L.
Juillot, P.
Kalkanis, G.
Kalmus, G.
Kapusta, F.
Karlsson, M.
Katsanevas, S.
Katsoufis, E. C.
Keranen, R.
Kesteman, J.
Khomenko, B. A.
Khovanski, N. N.
King, B.
Kjaer, N. J.
Klein, H.
Klempt, W.
Klovning, A.
Kluit, P.
Kohne, J. H.
Koene, B.
Kokkinias, P.
Kopf, M.
Koratzinos, M.
Korcyl, K.
Korytov, A. V.
Kostioukhine, V.
Kourkoumelis, C.
Kramer, P. H.
Kreuzberger, T.
Krolikowski, J.
Kronkvist, I.
Krstic, J.
Kruner-Marquis, U.
Krupinski, W.
Kucewicz, W.
Kurvinen, K.
Lacasta, C.
Lambropoulos, C.
Lamsa, J. W.
Lanceri, L.
Lapin, V.
Laugier, J. P.
Lauhakangas, R.
Leder, G.
Ledroit, F.
Leitner, R.
Lemoigne, Y.
Lemonne, J.
Lenzen, G.
Lepeltier, V.
Letessier-Selvon, A.
Lieb, E.
Liko, D.
Lillethun, E.
Lindgren, J.
Lindner, R.
Lipniacka, A.
Lippi, I.
Llosa, R.
Lorstad, B.
Lokajicek, M.
Loken, J. G.
Lopez-Fernandez, A.
Lopes Aguera, M. A.
Los, M.
Loukas, D.
Lounis, A.
Lozano, J. J.
Lutz, P.
Lyons, L.
Maehlum, G.
Maillard, J.
Maltezos, A.
Mandl, F.
Marco, J.
Margoni, M.
Marin, J. C.
Markou, A.
Maron, T.
Marti, S.
Mathis, L.
Matorras, F.
Matteuzzi, C.
Matthiae, G.
Mazzucato, M.
Mccubbin, M.
Mckay, R.
Mcnulty, R.
Menichetti, E.
Meola, G.
Meroni, C.
Meyer, W. T.
Michelotto, M.
Mitaroff, W. A.
Mitselmakher, G.
Mjornmark, U.
Moa, T.
Moller, R.
Monig, K.
Monge, M. R.
Morettini, P.
Muller, H.
Murray, W. J.
Muryn, B.
Myatt, G.
Naraghi, F.
Navarria, F. L.
Negri, P.
Nielsen, B. S.
Nijjhar, B.
Nikolaenko, V.
Obraztsov, V.
Oesterberg, K.
Olshevski, A. G.
Orava, R.
Ostankov, A.
Ouraou, A.
Paganoni, M.
Pain, R.
Palka, H.
Papadopoulou, T.
Pape, L.
Passeri, A.
Pegoraro, M.
Pennanen, J.
Perevozchikov, V.
Pernicka, M.
Perrotta, A.
Pierre, F.
Pimenta, M.
Pingot, O.
Pol, M. E.
Polok, G.
Poropat, P.
Privitera, P.
Pullia, A.
Radojicic, D.
Ragazzi, S.
Ratoff, P. N.
Read, A. L.
Redaelli, N. G.
Regler, M.
Reid, D.
Renton, P. B.
Resvanis, L. K.
Richard, F.
Richardson, M.
Ridky, J.
Rinaudo, G.
Roditi, I.
Romero, A.
Roncagliolo, I.
Ronchese, P.
Ronnqvist, C.
Rosenberg, E. I.
Rossi, U.
Rosso, E.
Roudeau, P.
Rovelli, T.
Ruckstuhl, W.
Ruhlmann, V.
Ruiz, A.
Rybicki, K.
Saarikko, H.
Sacquin, Y.
Sajot, G.
Salt, J.
Sanchez, E.
Sanchez, J.
Sannino, M.
Schaeffer, M.
Schael, S.
Schneider, H.
Schyns, M. A. E.
Scuri, F.
Segar, A. M.
Sekulin, R.
Sessa, M.
Sette, G.
Seufert, R.
Shellard, R. C.
Siegrist, P.
Simonetti, S.
Simonetto, F.
Sisakian, A. N.
Skaali, T. B.
Skjevling, G.
Smadja, G.
Smith, G. R.
Sosnowski, R.
Spassoff, T. S.
Spiriti, E.
Squarcia, S.
Stack, H.
Stanescu, C.
Stavropoulos, G.
Stichelbaut, F.
Stocchi, A.
Strauss, J.
Straver, J.
Strub, R.
Szczekowski, M.
Szeptycka, M.
Szymanski, P.
Tabarelli, T.
Tavernier, S.
Chikilev, O.
Theodosiou, G.
Tilquin, A.
Timmermans, J.
Timofeev, V. G.
Tkachev, L. G.
Todorov, T.
Toet, D. Z.
Toker, O.
Torassa, E.
Tortora, L.
Trainor, M. T.
Treille, D.
Trevisan, U.
Trischuk, W.
Tristram, G.
Troncon, C.
Tsirou, A.
Tsyganov, E. N.
Turala, M.
Turchetta, R.
Turluer, M.
Tuuva, T.
Tyapkin, I. A.
Tyndel, M.
Tzamarias, S.
Uberschar, S.
Ullaland, O.
Uvarov, V. A.
Valenti, G.
Vallazza, E.
Valls Ferrer, J. A.
Vander Velde, C.
Apeldoorn, G. W.
Dam, P.
Doninck, W. K.
Varela, J.
Vaz, P.
Vegni, G.
Laurent Ventura
Venus, W.
Verbeure, F.
Vertogradov, L. S.
Vilanova, D.
Vishnevskii, N.
Vitale, L.
Vlasov, E. V.
Vlassopulos, S.
Vodopyanov, A. S.
Vollmer, M.
Volponi, S.
Voulgaris, G.
Voutilainen, M.
Vrba, V.
Wahlen, H.
Walck, C.
Waldner, F.
Wayne, M.
Wehr, A.
Weierstall, M.
Weilhammer, P.
Werner, J.
Wetherell, A. M.
Wickens, J. H.
Wikne, J.
Wilkinson, G. R.
Williams, W. S. C.
Winter, M.
Wormald, D.
Wormser, G.
Woschnagg, K.
Yamdagni, N.
Yepes, P.
Zaitsev, A.
Zalewska, A.
Zalewski, P.
Zavrtanik, D.
Zevgolatakos, E.
Zhang, G.
Zimin, N. I.
Zito, M.
Zitoun, R.
Zukanovich Funchal, R.
Zumerle, G.
Zuniga, J.
Institut de Physique Nucléaire de Lyon (IPNL)
Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL)
Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Laboratoire de l'Accélérateur Linéaire (LAL)
Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Laboratoire de Physique Subatomique et de Cosmologie (LPSC)
Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)
Institut de Recherches Subatomiques (IReS)
Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)
Centre de Physique des Particules de Marseille (CPPM)
Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
DELPHI
Delphi, Collaboration
Abreu, P.
Adam, W.
Canale, Vincenzo
Université Claude Bernard Lyon 1 (UCBL)
Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)
Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)
Source :
Physics Letters B, Physics Letters B, Elsevier, 1992, 281, pp.383-393, Scopus-Elsevier, CIÊNCIAVITAE, DELPHI Collaboration Allen, Paul Llosá Reig, Rafael Benlloch Baviera, José María Castillo Giménez, María Victoria Fez Laso, M. D. M. de Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gómez Cadenas, Juan José Hernández Rey, Juan José Higón Rodríguez, Emilio Lozano Bahilo, José Julio Lacasta Llácer, Carlos Martí García, Salvador Salt Cairols, José Sánchez Rojo, María Ester Valls Ferrer, Juan Antonio Zúñiga Román, Juan 1992 Measurement of the Z0 branching fraction to B quark pairs using the boosted sphericity product Physics Letters B 281 3-4 383 393, RODERIC. Repositorio Institucional de la Universitat de Valéncia, instname, Physics Letters B, 1992, 281, pp.383-393. ⟨10.1016/0370-2693(92)91159-7⟩, HAL
Publication Year :
1992
Publisher :
HAL CCSD, 1992.

Abstract

From a sample of about 120 000 hadronic Z 0 decays, using a technique based on a separation of the different event categories in the boosted sphericity product, the fraction of b b decays has been measured to be 0.219 ± 0.014 (stat)± 0.019 (syst). Using the DELPHI determination of the hadronic Z 0 width, this corresponds to a partial width τ b b = 378 ± 42 MeV (in good agreement with the standard model prediction of ∼-380 MeV). Combining this measurement with the determinations based on events with high p t leptons gives an estimate for the branching ratio of b into leptons at LEP of (11.2 ± 1.2)%, consistent with previous determinations.

Subjects

Subjects :
Nuclear and High Energy Physics
Particle physics
E+E ANNIHILATION
LUND MONTE-CARLO
Electron–positron annihilation
Hadron
01 natural sciences
Bottom quark
JET FRAGMENTATION
DECAYS
Standard Model
Sphericity
Nuclear physics
PHYSICS
0103 physical sciences
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
010306 general physics
Nuclear Experiment
Physics
010308 nuclear & particles physics
Branching fraction
High Energy Physics::Phenomenology
Product (mathematics)
Física nuclear
High Energy Physics::Experiment
Particle Physics - Experiment
Lepton

Details

Language :
English
ISSN :
03702693
Database :
OpenAIRE
Journal :
Physics Letters B, Physics Letters B, Elsevier, 1992, 281, pp.383-393, Scopus-Elsevier, CIÊNCIAVITAE, DELPHI Collaboration Allen, Paul Llosá Reig, Rafael Benlloch Baviera, José María Castillo Giménez, María Victoria Fez Laso, M. D. M. de Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gómez Cadenas, Juan José Hernández Rey, Juan José Higón Rodríguez, Emilio Lozano Bahilo, José Julio Lacasta Llácer, Carlos Martí García, Salvador Salt Cairols, José Sánchez Rojo, María Ester Valls Ferrer, Juan Antonio Zúñiga Román, Juan 1992 Measurement of the Z0 branching fraction to B quark pairs using the boosted sphericity product Physics Letters B 281 3-4 383 393, RODERIC. Repositorio Institucional de la Universitat de Valéncia, instname, Physics Letters B, 1992, 281, pp.383-393. ⟨10.1016/0370-2693(92)91159-7⟩, HAL
Accession number :
edsair.doi.dedup.....d6e4bb37bc412d52c0e8387d27a873e4
Full Text :
https://doi.org/10.1016/0370-2693(92)91159-7⟩
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