Measurement of the W boson helicity in top quark decay at D0

6533b85cfe1ef96bd12bd5bb

RESEARCH PRODUCT

Measurement of the W boson helicity in top quark decay at D0

S. J. Park P. Lebrun T. Kuhl M. Jaffré Graham Wilson O. Boeriu D. K. Cho A. Stone H. Da Motta D. Gillberg A. S. Ito A. Melnitchouk T. Scanlon S. Kermiche V. Hynek U. Bassler K. W. Merritt A. C.s. Assis Jesus H. Hoeth Sascha Caron Guennadi Borissov Suman Bala Beri L. Bellantoni J. F. Bartlett P. Banerjee Helena Malbouisson Alexander Kupco Robert Kehoe S. Robinson Vivian O'dell A. Juste Regina Demina M. Agelou V. V. Lipaev V. Lesne A. M. Magnan W. C. Fisher M. Yan Alexander Leflat M. Strovink J. N. Butler P. D. Grannis Todd Adams S. Burke Raimund Ströhmer Randy Ruchti Neeti Parashar S. Chakrabarti Peter Love T. Moulik J. Steele V. Simak M. Zielinski P. Padley R. F. Rodrigues S. Lammers Robert Hirosky A. M. Kalinin D. Bauer A. Meyer M. C. Cousinou Alberto Santoro J. G.r. Lima K. Herner Ashok Das D. Onoprienko A. Kryemadhi M. H. Kirby C. Noeding Jovan Mitrevski G. Gutierrez Gilvan Alves Nikola Makovec P.f. Ermolov Maria Elena Pol Mitchell Wayne Adam L. Lyon D. A. Stoyanova G. Alkhazov D. V. Bandurin H. Schellman J. M. Kohli M. Das J. Kasper F. Lehner L. S. Vertogradov W. M. Lee Michael Begel Eduardo De Moraes Gregores Marcel Vreeswijk B. Spurlock Zeno Dixon Greenwood G. A. Davis Boris Tuchming N. Gollub N. Gollub N. Gollub Luiz Mundim Limin Wang Marc-andre Pleier Shuichi Kunori W. M. Van Leeuwen I. Torchiani Karl Jakobs Suyong Choi M. Sosebee Stefan Grünendahl Chris P. Barnes D. Brown S. Fu M. Anastasoaie P. Rubinov J. Gardner Andrew White Y. Arnoud Mossadek Talby B. Gómez A. Sanchez-hernandez V. Zutshi V. Siccardi Emmanuel Busato M. ĆWiok Tae Jeong Kim P. Lewis J. Snow K. Peters Christophe Clement Christophe Clement Christophe Clement C. Biscarat Arnulf Quadt Freya Blekman J. Kotcher G. Hesketh M. Michaut Elemer Nagy J. Sekaric Shashikant Dugad H. Weerts P. J. Van Den Berg Jessica Levêque K. Bos Marc Besancon J. Temple M. Binder S. Anderson W. E. Cooper Harald Fox Cristina Galea Lev Dudko Yann Coadou Mikko Voutilainen Mikko Voutilainen M. Wetstein Andrew Askew Brigitte Vachon Armen Vartapetian Dmitri Tsybychev R. L. Mccarthy Marvin Johnson Sung Keun Park M. Abolins Sergey Burdin M. Eads S. P. Denisov M. Vaupel Hwi Dong Yoo Andrew Brandt D. Wicke H. E. Fisk Gregorio Bernardi D. Denisov A. Jonckheere A. Lobodenko L. Berntzon Andrei Nomerotski S. Sengupta Zdenek Hubacek Y. D. Mutaf I. A. Vasilyev P. M. Perea John Hobbs S. Beale Arnaud Duperrin J. M. Heinmiller V. M. Korablev Hal Evans B. Tiller A. Chandra S. W. Youn E. Von Toerne F. Charles M. Buehler A. V. Kozelov A. Yurkewicz F. Villeneuve-seguier Thomas Ferbel A. C. Le Bihan N. K. Mondal Lars Sonnenschein D. Edmunds Kirti Ranjan Michael Mulhearn L. Lobo Lorenzo Feligioni B. Gmyrek H.e. Miettinen Carsten Hensel P. Demine Jong-sung Yu J. Barreto N. Oshima P. Schieferdecker Daniel Bloch H. T. Diehl Daria Zieminska T. A. Bolton D. Duggan R. D. Schamberger Sergio F Novaes Y. Pogorelov T. Nunnemann B. Baldin Aran Garcia-bellido Vipin Bhatnagar Jun Guo Q. Z. Li Jeroen Hegeman E. De La Cruz-burelo Mansoora Shamim R. Partridge P. K. Mal V. I. Rud S. Söldner-rembold R. Otec W. D. Shephard A. Boehnlein M. Kopal C. De Oliveira Martins Andre Sznajder P. N. Ratoff Yuri Gershtein Emmanuelle Perez P. Mättig P. M. Tuts Christian Schmitt Maksym Titov M. H.g. Souza C. T. Potter R. Gelhaus P. Svoisky P. Verdier K. M. Black T. R. Wyatt D. Coppage J. Ellison M. Ahsan Pushpalatha C Bhat Yurii Maravin Vladimir Gavrilov E. Aguilo Gordon Watts G. Obrant V. Sirotenko Y. A. Yatsunenko N. Khalatyan K. J. Rani A. Alton Md. Naimuddin Sa. Jain S. Fuess A. S. Turcot Phillip Gutierrez T. Kurca T. Kurca Marc Weber S. Strandberg S. Strandberg S. Strandberg Shabnam Jabeen Christian Autermann Kenneth Bloom V. L. Malyshev G. Grenier R. Illingworth J. A. Parsons Reinhard Schwienhorst Rupinder Kaur Marco Verzocchi C. Magass Dugan O'neil Bradley Cox J. P. Konrath H. Dong A. Patwa Mark Owen Denis Gelé N. M. Cason H. S. Mao Reiner Hauser A. Evdokimov A. Lounis J. Womersley Viatcheslav Stolin B. Hoeneisen Lee Sawyer M. H.l.s. Wang M. Petteni J. M. Kalk C. Belanger-champagne M. Wobisch M. Merkin Andre Sopczak J. Molina M. P. Sanders B. Andrieu Elliott Cheu Victor Daniel Elvira Carlos Avila A. Pompoš N. A. Naumann S. Sumowidagdo S. Reucroft Heriberto Castilla-valdez Raymond Brock Mark Raymond Adams D. Buchholz Marcia Begalli P. Tamburello Norbert Wermes Meenakshi Narain Sherry Towers J. Haley L. Christofek Robert Harrington J. M. Hauptman Cecilia Elena Gerber Sabine Crépé-renaudin D. Käfer A. Bellavance D. Karmanov T. Edwards Anna Goussiou A. Jenkins M. Cooke Chuanhua Yu Sudhir Malik W. L. Prado Da Silva G. Ginther Boaz Klima I. Katsanos R. Beuselinck J. R. Kalk Ia Iashvili Jean-roch Vlimant L. Bagby Brajesh C Choudhary K. M. Chan Christian Zeitnitz T. Toole A. Mendes H. Kim Philip Baringer J. Piper J. D. Degenhardt J. Dyer Gregory R Snow P. H. Kasper J. Lazoflores P. Skubic S.a. Kahn V. V. Tokmenin Lev Uvarov H. A. Neal D. Meder Ariel Schwartzman Jianming Qian B. Davies Julia S. Meyer J. T. Linnemann M. Demarteau S. Kappler K. Yip N. Xuan S. Banerjee R. Bernhard B. G. Pope Carmen García R. Unalan R. J. Madaras L. Stutte Gregory J Pawloski S. Yacoob G. Savage S. Uvarov A.s. Dyshkant Sharon Hagopian A. K.a. Maciel Calvin A. Johnson Jiri Kvita S. Calvet Elizaveta Shabalina Thomas Trefzger B. Clément M. Doidge Timothy Andeen R. Piegaia G. D. Alexeev Flera Rizatdinova Ivor Fleck B. Quinn Makoto Tomoto C. Schwanenberger Alice Bean F. Chevallier N. Oliveira George Alverson Nikos Varelas D. Hedin Bing Zhou Luis Mendoza Stephen Wimpenny Martin Grunewald Milos Lokajicek F. Guo Darien Wood Nicholas John Hadley C. P. Buszello V. M. Abazov S. Blessing O. Mundal Scott Snyder R. K. Shivpuri D. R. Claes Gavin Davies Philippe Calfayan Y. Scheglov Kaushik De I. Blackler Jan Stark Henry Lubatti J. Cammin Iain Alexander Bertram Michael Rijssenbeek T. Gadfort R. Hooper P. Vint V. Oguri V. N. Evdokimov I. Ripp-baudot I. Hall A. Koubarovsky A. V. Popov J. Hays Gustaaf Brooijmans V. A. Bezzubov J. P. Negret R. P. Smith J. Warchol Sophie Trincaz-duvoid Michael Hildreth D. Kau E. G. Zverev S. J. De Jong B. Kothari S. Uzunyan Harrison Prosper Y. Xie Amnon Harel S. Desai A. A. Shchukin Frank Fiedler E. Kajfasz P. Hansson P. Hansson P. Hansson Elizabeth Gallas Johannes Elmsheuser P. Neustroev R. Jesik K. A. Johns P. Haefner Tiefu Zhao Ulrike Blumenschein P. L.m. Podesta-lerma Brad Abbott C. Ay Pierre Petroff A. V. Ferapontov R. Van Kooten M. D. Corcoran L. Han A. Zieminski M. A. Strang R. A. Sidwell V. V. Shary S. J. Hong Paul Telford Avto Kharchilava Alexander Khanov Emanuela Barberis Kazunori Hanagaki Dongliang Zhang Ashok Kumar Kristian Harder Tulika Bose D. Cutts Wagner Carvalho Greg Landsberg Pedrame Bargassa K. Soustruznik N. J. Buchanan G. Sajot Aaron Dominguez Y. Hu M. S. Rangel C. Jarvis V. Buescher M. S. Anzelc Sarah Catherine Eno Horst Severini M. Lynker Junjie Zhu X. F. Song Dorothee Schaile Michael Martens Richard B. Lipton O. Atramentov D. Krop M. Ford A. Baden M. Hohlfeld G. C. Blazey R. Yamada S. N. Fatakia V. M. Podstavkov D. Shpakov Christophe Royon Jean-francois Grivaz S. H. Ahn P. De Jong H. D. Wahl M. Arov F. Badaud M. Fortner P. Jonsson Thomas Hebbeker D. Khatidze M. Mulders E. Galyaev Ph Gris T. Yasuda Wendy Taylor P. Houben Roger Moore A. Magerkurth A. Zatserklyaniy B. S. Acharya L. Duflot B. ÅSman B. ÅSman B. ÅSman A. P. Heinson G. S. Muanza R. E. Hall P. Renkel T. Millet H. Greenlee D. M. Strom B. C.k. Casey A. Bross Serban Protopopescu Andy Haas G. Weber D. Chakraborty Don Lincoln Erich Varnes J. Monk T. H. Burnett J. A. Benitez Z. Liu Jing Li Ulrich Heintz Frank Filthaut M. Diesburg Frederic Deliot Christopher George Tully Y. M. Kharzheev Patrick Slattery G. J. Otero Y Garzón Michael A. Strauss Jonas Strandberg N. Parua

subject

Physics Nuclear and High Energy Physics Particle physics Top quark 010308 nuclear & particles physics High Energy Physics::Phenomenology Tevatron FOS: Physical sciences 01 natural sciences Helicity Standard Model Luminosity High Energy Physics - Experiment Nuclear physics Particle decay High Energy Physics - Experiment (hep-ex)0103 physical sciences [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]High Energy Physics::Experiment 010306 general physics Lepton Boson

description

We present a measurement of the fraction f_+ of right-handed W bosons produced in top quark decays, based on a candidate sample of ttbar events in the l+jets and dilepton decay channels corresponding to an integrated luminosity of 370 pb^-1 collected by the DO detector at the Fermilab Tevatron ppbar Collider at sqrt{s}=1.96 TeV. We reconstruct the decay angle theta^* for each lepton. By comparing the \cos\theta^* distribution from the data with those for the expected background and signal for various values of f_+, we find $f_+=0.056 +- 0.080 (stat) +- 0.057 (syst)}. (f_+ < 0.23 at 95% C.L.), consistent with the standard model prediction of f_+=3.6 x10^-4.

year	journal	country	edition	language
2007-01-01

https://dx.doi.org/10.48550/arxiv.hep-ex/0609045