FIRST MEASUREMENT OF THE STRANGE QUARK ASYMMETRY AT THE Z(0) PEAK

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RESEARCH PRODUCT

FIRST MEASUREMENT OF THE STRANGE QUARK ASYMMETRY AT THE Z(0) PEAK

D. Gele M. J. Bates G. E. Theodosiou Juan Abel Barrio A. G. Olshevski A. Chan W.s.c. Williams Maria Elena Pol S. Katsanevas K. Stepaniak S. C. Blyth G. Wilkinson M.d.m. De Fez Laso H. Furstenau B. Koene Lucio Cerrito V. Chorowicz Toralf Bernhard Skaali T. Spassov D. Gamba E. K. Johansson Steinar Stapnes D. Y. Bardin M. Karlsson Maria Roberta Monge A. Zalewska Sandra Amato Phillip Allport F. Verbeure Imad Baptiste Laktineh W. T. Meyer V. Malychev Paolo Morettini Paolo Ronchese G. Della Ricca G. Della Ricca Th. D. Papadopoulou A. Lopez-fernandez Chiara Mariotti T. A. Filippas M. Regler P. Kubinec V. Obraztsov Jacques Lemonne N. J. Kjaer I. Stavitski Clara Troncon P. Niss S. Squarcia H. Saarikko L. Bugge A. J. Camacho Rozas I. Roncagliolo D. Z. Toet Paul Baillon P. Siegrist D. Zontar Laurent Mirabito I. Ripp J. G. Loken R. Janik C. De Saint-jean P. Beilliere R. Ehret W. Kucewicz S. Hahn Francesca Romana Cavallo Yu. Sedykh Marc Winter M. Mazzucato Alexander Lincoln Read M. Szeptycka K. D. Brand J. Pennanen N. I. Zimin G. W. Van Apeldoorn L. Ventura G. Tristram H. Mueller Louis Lyons R. Aleksan Cristian Stanescu P. Branchini I. Lippi J. H. Wickens B. Muryn Marco Paganoni V. V. Lapin B. Stugu M. Gandelman P. H. Kramer Pierre Billoir H. Wahlen J. H. Koehne Jose Luis Contreras L. Yu K. Yip R. Lindner Y. Lemoigne C. De Clercq R. Barate W. J. Murray G. E. Kalmus T. Tabarelli P. Rebecchi W. Hao O. Barring M. Battaglia B. Franck D. Bertrand D. Vilanova H. Schneider G. A. Chelkov W. Neumann H. Rahmani J. Chauveau V. Ruhlmann-kleider K. H. Becks L. Vitale D. Radojicic G. Vegni Tord Ekelof H. Staeck I. A. Tyapkin C. Lambropoulos Ugo Amaldi W. De Boer E. Zevgolatakos A. Baroncelli Y. Dufour E. Cortina D. Fassouliotis Ariella Cattai F. Ledroit P. Van Dam H. Palka Andrea Perrotta W. Ruckstuhl O. Ullaland M. Weierstall E. Vallazza M. A. Lopez Aguera P. Herquet R. Contri J-c. Marin R. Gokieli Borge Svane Nielsen J. W. Lamsa Demetrios Loukas J. P. Engel Sandor Czellar M. V. Castillo Gimenez M. Blume F. Barao J. J. Lozano Leif J. Jönsson Norbert Neumeister G. Sciolla P. Lutz R. Moeller I. V. Ajinenko P. Beltran Vaclav Vrba Jorge-armando Benitez Garcia S. De Brabandere G. Polok R. Orava Fernand Grard Krzysztof Doroba P. Gunnarsson Spyros Tzamarias O. Tchikilev Stefano Ragazzi Andrei Nomerotski Chiara Meroni C. De La Vaissiere Paul Dauncey N. Demaria A. Lilja M. L. Andrieux W. Van Doninck F. Stichelbaut Christine Kourkoumelis E. Dahl-jensen R. Mc Kay G. Damgaard G. Valenti R. Mc Nulty E. Higon B. Loerstad S. Bosworth A. Andreazza F. Scuri H. De Boeck B. Jean-marie M. Tyndel Hans Dijkstra A. Passeri P. Bruckman M. Voutilainen S. Marti I Garcia D. Edsall G. Grosdidier Josef Strauss Manolis Dris A. G. Frodesen V. Nikolaenko T. Todorov M. Wielers B. Bouquet V. Chabaud Ernesto Migliore M. Espirito Santo W. Venus L. K. Resvanis Themistocles Bowcock C. Gaspar A. Tilquin Massimo Caccia M. Feindt S. Sánchez Navas P. Roudeau M. S. Bilenky J. P. Gerber M. Verlato G. Wormser Pawel Jalocha Barry King F. Formenti V. Gracco M. L. Turluer D. Reid F. Pierre Peter Kluit L.j. Carroll J. Maillard M. Davenport Gary John Barker A. M. Wetherell F. Cao L. Lanceri L. Lanceri Vincent Hedberg V. Cassio P. Negri Alessandra Romero A. B. Fenyuk Alberto Benvenuti Stéphane Plaszczynski M. Bonesini K. Woschnagg J. Medbo R. Nicolaidou Z. Hajduk W. Krupinski I. Kronkvist D. J. Holthuizen E. Spiriti O. Podobrin B. Boštjančič V. Perevozchikov G. C. Zucchelli Gianni Zumerle R. Frühwirth A. Ruiz Fabio Cossutti Fabio Cossutti Pavlos Ioannou J. Timmermans D. W. Lane J. Dolbeau G. Ekspong R. Keranen Francisco Matorras A. Firestone Tiziano Camporesi P. Weilhammer G. Gopal Kathy Huet Valeriy Pozdniakov D. Souza-santos A. Buys A. Klovning G. Cosme P. J. Holt Y. Arnoud U. Mjoernmark C. Bosio N. G. Redaelli Maciej Górski Göran Jarlskog L. De Paula T. Bolognese A. Hakansson A. N. Sisakian T. Lesiak A. Sadovsky A. Lipniacka M. A E Schyns P. Bambade P.s.l. Booth R. Lauhakangas Ph. Charpentier P. N. Ratoff Klaus Mönig Fabrizio Parodi V. Lepeltier S. Simonetti Charles Bricman Paolo Checchia M. Begalli F. Simonetto Ph. Gavillet P. F. Honore M. A. Houlden Luis Peralta F. Kapusta P. Juillot Y. Sacquin G. Smadja J. Van Eldik Heinz Pernegger T. S. Hill P. V. Chliapnikov N. Ershaidat P. Poropat P. Poropat Andromachi Tsirou Andre Augustinus A. Wehr P. Pages H. T. Phillips Vladimir Cindro G. Borisov M. Baubillier Achille Stocchi H. J. Hilke Robert S. Brown G. Leder F. Zach Marco Bozzo P. Frenkiel F. Waldner W. Bonivento Kerem Cankocak Manfred Krammer M. Zito S. O. Holmgren L. S. Vertogradov B. ÅSman A. Daum Stanislav Nemecek A. Pullia A. Ferrer V. Bocci M. Kaiser A. Rybin W. Da Silva W. A. Mitaroff V. Lefebure M. Donszelmann B. Golob A. Tomaradze T. L. Hessing T. Buran Danilo Zavrtanik J. T.m. Chrin M. Michelotto F. Richard P. Chochula M. Prest M. Prest J. Dahm C. Matteuzzi A. M. Zaitsev Alexander Vodopyanov J. Baudot C. Walck J. L. Fousset A. Normand D. Crennell W. D. Apel F. Bianchi F. Mandl Allan Hallgren W. Oberschulte-beckmann J. Bjarne R. C. Shellard L. Di Ciaccio B. Tome P. Antilogus Markus Elsing M. Hahn Claire Bourdarios P. Paganini S. Almehed O. Kouznetsov P. Carrilho J. J. Hernandez U. Haedinger Marek Szczekowski Lydia Roos J. Drees E. Karvelas A. M. Segar Martino Margoni E. Fokitis Wolfgang Adam Dietrich Liko P. Privitera P. Delpierre Klaus Hamacher J. Cuevas Maestro F. Hahn C. Kreuter J. E. Augustin E. Rosso H. Klein F. Dupont Evangelos Gazis D. Gillespie Chariclia Petridou Chariclia Petridou P. B. Renton K. Osterberg D. C. Fries F. Fontanelli R. Sosnowski Branislav Sitar H. Briand M. Reale Matteo Pegoraro K. Kulka P. Vincent F. Naraghi Patrick Jarry M. Dracos G. Rinaudo L. Chaussard B. Marechal E. C. Katsoufis Daniel Treille M. Bigi S. Haider G. Myatt C. Caso Yu. Belokopytov Marta Calvi J. Ridky Vincenzo Canale Geoffrey Smith B. Dalmagne Ugo Gasparini Nikita Smirnov R. Henriques Piotr Zalewski R. A. Brenner Mariusz Witek F. Carena Z. Krumstein S. J. Alvsvaag E. Agasi J. Salt Milos Lokajicek J. A. Hernando K. A. Drees Rupert Leitner H. B. Crawley L. Tortora A. De Min F. J. Harris G. Piana A. Trombini I. Siccama G. Sajot Jan Krolikowski M. Pernicka N. N. Khovanski W. Bartl L. Brillault Carlos Lacasta F. M. L. Almeida J. Guy G. Matthiae Jesus Marco G. Lenzen R. Strub J. J. Gomez Y Cadenas F. Martinez-vidal V. Kostioukhine M. Koratzinos R. Pain S. Ueberschaer Tim Adye A. Maio O. Smirnova Mogens Dam G. D. Alekseev E. Torassa A. Maltezos V.a. Uvarov J. A. Valls Ferrer Mario Sannino M. Mc Cubbin E. I. Rosenberg K. Hultqvist Georgios Stavropoulos J. P. Laugier K. Kurvinen D. Wicke Javier Sánchez Ivan Mikulec J. N. Jackson J. Rames R. Zuberi C. Martinez-rivero M. Pimenta B. A. Khomenko P. Kokkinias Olga Botner Krzysztof Korcyl C. K. Legan Francesco Navarria P. Langefeld T. Maron G. Transtromer L. Gorn Carmen García H. Foeth B. Ueberschaer A. De Angelis P. Collins Maurizio Canepa Daniel Bloch Ahmimed Ouraou C. Defoix F. Fulda-quenzer E. Graziani J. Fister J. M. Brunet J.d. Richardson Richard Jacobsson A. Petrolini B. De Lotto B. De Lotto G. Crosetti Evgueni Vlasov H. Herr L. G. Tkatchev A. Seitz M. Berggren Tiziano Rovelli Luc Pape O. Yushchenko R. Sekulin T. Moa G. Maehlum Fares Djama William Trischuk A. Markou P. Abreu

subject

Strange quark Particle physics Physics and Astronomy (miscellaneous)s-quark LUND MONTE-CARLO High Energy Physics::Lattice Electron–positron annihilation media_common.quotation_subject Hadron Nuclear Theory LUND MONTE-CARLO; CHARGE ASYMMETRY; HADRONIC DECAYS; Z0; ANNIHILATION; EVENTS; JETS Lambda 01 natural sciences Asymmetry Ring-imaging Cherenkov detector Partícules (Física nuclear)EVENTS Nuclear physics 0103 physical sciences DELPHI; asymmetry; Z0 resonance; s-quark [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Neutron Z0 ANNIHILATION 010306 general physics Nuclear Experiment CHARGE ASYMMETRY Engineering (miscellaneous)DELPHI media_common Physics 010308 nuclear & particles physics High Energy Physics::Phenomenology Weinberg angle LARGE ELECTRON POSITRON COLLIDER Z0 resonance PARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHI JETS PARTICLE PHYSICS High Energy Physics::Experiment Col·lisionadors d'hadrons HADRONIC DECAYS asymmetry Particle Physics - Experiment

description

A measurement of the strange quark forward-backward asymmetry at the Z0 peak was performed using 718,000 multihadronic Z0 decays collected by the DELPHI detector at LEP in 1992. The s-quark was tagged by the presence of high momentum charged kaons identified by the Ring Imaging Cherenkov detector and by Λ0;s decaying into pπ-. The s-quark purity obtained was estimated for the two hadrons to be 43%. The average s-quark asymmetry was found to be 0.131±0.035 (stat.) ±0.013 (syst.). The forward-backward asymmetry was measured for unresolved d-and s-quarks, tagged by the detection of a high energy neutron or neutral kaon in the Hadron Calorimeter. The combined d-and s-quark purity was 69% and their asymmetry was found to be 0.112±0.031 (stat.) ±0.054 (syst.). © 1995 Springer-Verlag.

year	journal	country	edition	language
1995-03-01

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