Search for pair production of first-generation leptoquarks in pp¯ collisions at s=1.96 TeV

6533b826fe1ef96bd1284635

RESEARCH PRODUCT

Search for pair production of first-generation leptoquarks in pp¯ collisions at s=1.96 TeV

Marco Verzocchi Theodoros Christoudias E. G. Zverev Kristian Harder A. Patwa Mark Owen D. Cutts Wagner Carvalho A. Leflat Marcia Begalli Meenakshi Narain G. S. Muanza Greg Landsberg K. Herner A. Evdokimov J. Haley Sung Keun Park S. J. De Jong Sergio F Novaes Pedrame Bargassa K. Soustruznik M. Naimuddin D. Edmunds T. Gadfort Philip Baringer M. P. Sanders Yurii Maravin A. F. Barfuss V. A. Bezzubov J. P. Negret V. M. Abazov V. Shary R. Luna-garcia S. Greder Iain Alexander Bertram Michael Rijssenbeek W. M. Van Leeuwen S. Zelitch C. Belanger-champagne Zhenyu Ye P. Rich C. Zeitnitz Arnulf Quadt Michael Hildreth J. Piper V. N. Evdokimov S. Banerjee L. Welty-rieger Emanuela Barberis Elemer Nagy S. Uzunyan Yuri Gershtein Vladimir Gavrilov R. Magaña-villalba G. Obrant M. Wetstein Gordon Watts Y. Xie Amnon Harel B. C.k. Casey V. Sirotenko G. Alkhazov D. V. Bandurin M. Cooke M. Kirsch W. L. Prado Da Silva Kaushik De Avto Kharchilava T. Hoang Alexander Khanov P. Polozov R. Otec D. Wicke Dennis Stephen Mackin M. Arov Reinhard Schwienhorst G. D. Alexeev Ashok Kumar Flera Rizatdinova A. A. Shchukin B. Tiller Shabnam Jabeen M. Merkin J. Clutter Phillip Gutierrez P. Haefner Tae Jeong Kim P. N. Ratoff Y. Peters P. M. Tuts Maksym Titov S. Uvarov Peter Love W. Geng W. Geng Tiefu Zhao B. Penning M. C. Cousinou S. W. Youn N. Khalatyan S. Yacoob Frank Fiedler George Alverson J. K. Kraus Hua-lei Yin S. Beale D. Hedin David T. Johnston P. L.m. Podesta-lerma Tulika Bose T. Dorland E. Kajfasz M. ĆWiok L. S. Ancu S. Fu Aaron Dominguez Marvin Johnson A. L. Lyon A. V. Kozelov Markus Wobisch Stephen Wimpenny Brad Abbott G. Sajot A. Das M. Sosebee P. Verdier J. Backusmayes Martin Grunewald Pierre Petroff P. A. Kasper Andrew White J. Orduna Raymond Brock Boaz Klima A. Bellavance Alexander Grohsjean M. Buehler G. Hesketh R. Beuselinck Y. Hu Sergey Burdin Suyong Choi S. Cihangir Milos Lokajicek P. J. Van Den Berg Robert Hirosky Marc Besancon Michael A. Strauss Mark Richard James Williams A. V. Ferapontov H. E. Fisk E. Strauss A. Dubey M. Eads S. P. Denisov B. Sanghi R. Van Kooten Y. W. Liu P. Mättig Lev Uvarov V. A. Kuzmin M. D. Corcoran M. Padilla X. B. Bu B. Quinn G. Grenier Chong-yu Xu Fabrice Couderc M. Abolins F. Guo R. Illingworth L. Han C. Schwanenberger D. Bauer M. S. Anzelc P. Lebrun Alice Bean Jovan Mitrevski G. Gutierrez Gilvan Alves Michael Mulhearn Sarah Catherine Eno Horst Severini Darien Wood S. Hossain John Hobbs Marc Escalier J. Barreto A. Wenger Liang Li Calvin A. Johnson Sharon Hagopian Jeroen Hegeman D. K. Cho J. P. Konrath D. N. Brown C. P. Buszello Junjie Zhu T. Scanlon S. Kermiche Suman Bala Beri V. Hynek Karl Jakobs Ernest Aguilo P. Neustroev Lev Dudko D. Smirnov M. A. Strang E. De La Cruz-burelo Maria Elena Pol S. Desai A. K.a. Maciel S. Blessing Pedro G Mercadante P. Svoisky M. Arthaud V. Buescher H. Nilsen Elizaveta Shabalina Petr Vokac Timothy Andeen D. Buchholz L. S. Vertogradov Richard B. Lipton Jun Guo Q. Z. Li A. Juste Todd Adams Hwi Dong Yoo Zdenek Hubacek Scott Snyder Aran Garcia-bellido P. Skubic A. Jonckheere I. Hall J. Snow N. K. Mondal Andrew Brandt L. Zivkovic H. T. Diehl T. A. Bolton R. Jesik Laurent Duflot R. G. Wagner Y. Pogorelov G. C. Blazey M. Rominsky Jonas Strandberg A. Lobodenko K. A. Johns B. Calpas A. Boehnlein Y. Arnoud Anna Goussiou I. Torchiani R. K. Shivpuri K. Peters R. Yamada T. Kuhl M. Jaffré O. Atramentov N. Oshima Dorothee Schaile Gregorio Bernardi M. S. Rangel D. Denisov Kirti Ranjan Carsten Hensel R. Bernhard W. E. Cooper K. W. Merritt Harald Fox J. A. Parsons J. Osta J. Ellison M. Ahsan Jean-francois Grivaz Gregory R Snow J. F. Bartlett Robert Kehoe M. Hohlfeld N. Huske D. R. Claes Sa. Jain S. Fuess Wendy Taylor Gavin Davies Philippe Calfayan Daria Zieminska V. M. Podstavkov P. Jonsson E. E. Boos Heriberto Castilla-valdez T. Kurca Mikko Voutilainen Marc Weber V. Bunichev D. Onoprienko Hal Evans Thomas Ferbel Thomas Ferbel Lars Sonnenschein G. Otero Y Garzon Alexander Kupco M. Fortner Arnaud Duperrin Thomas Hebbeker D. Khatidze Maiko Takahashi I. A. Vasilyev Vipin Bhatnagar R. D. Schamberger R. Piegaia I. Katsanos Florian Lacroix Roger Moore T. R. Wyatt R. Partridge D. Duggan J. M. Hauptman Cecilia Elena Gerber Jong-sung Yu I. Ripp-baudot N. Parua A. Meyer Pushpalatha C Bhat D. Vilanova Randy Ruchti Kenneth Bloom D. Menezes Benjamin M. Martin V. L. Malyshev V. Siccardi G. Ginther G. Ginther C. Ochando F. Badaud S. M. Lietti Y. Scheglov Kaushik De Suneel Dutt Jianming Qian A. Alton Meng Wang B. Spurlock Zeno Dixon Greenwood W. Geist Helio Nogima Cristina Galea Y. N. Kharzheev Y. A. Yatsunenko G. Savage Jean-arcady Meyer L. Bagby A. Magerkurth B. Hoeneisen Lee Sawyer K. M. Chan U. Bassler S. Robinson Viatcheslav Stolin Raimund Ströhmer V. Simak Sabine Lammers Regina Demina P. Vint A. V. Popov Y. Enari Jan Stark P. Padley T. Moulik B. S. Acharya D. Jamin Grigory Safronov S. Chakrabarti P. Rubinov E. Carrera Carlos Avila S. Sumowidagdo Mitchell Wayne H. Schellman J. M. Kohli Henry Lubatti Sabine Crépé-renaudin W. M. Lee D. Lam Gustaaf Brooijmans Christophe Royon Guennadi Borissov J. Cammin I. Heredia-de La Cruz J. Warchol M. Demarteau W. C. Fisher Neeti Parashar H. D. Wahl M. Zielinski J. Hays Nikos Varelas Bing Zhou Luis Mendoza M. M. Meijer T. Yasuda D. A. Stoyanova C. L. Mcgivern Michael Begel Eduardo De Moraes Gregores Luiz Mundim Marc-andre Pleier T. H. Burnett J. A. Benitez Z. Liu Ulrich Heintz P. K. Mal S. Calvet Frank Filthaut M. Diesburg A. Chandra T. Nunnemann B. Baldin Mansoora Shamim A. Tanasijczuk Andre Sopczak G. Weber D. Chakraborty Elliott Cheu T. Schliephake V. V. Tokmenin G. Facini Don Lincoln Erich Varnes H. A. Neal J. T. Linnemann O. Mundal K. Yip Victor Daniel Elvira R. Unalan L. Stutte Gregory J Pawloski A.s. Dyshkant Jiri Kvita K. Devaughan Jing Li Mark Raymond Adams D. Karmanov Sudhir Malik Ia Iashvili Brajesh C Choudhary M. A. Carrasco-lizarraga P. Renkel Frederic Deliot A. Sanchez-hernandez Christopher George Tully V. Zutshi N. Osman Andrew Askew S. Schlobohm W. C. Yang Patrick Slattery Maxim Perfilov A. Rakitine H. Greenlee D. M. Strom A. Bross L. Bellantoni Helena Malbouisson P. D. Grannis Serban Protopopescu M. Aoki Andy Haas J. K. Lim Stefan Grünendahl B. Gómez B. ÅSman B. Tuchming J. Sekaric A. P. Heinson R. E. Hall M. Pangilinan Ph Gris P. Houben M. H. Kirby Dmitri Tsybychev R. L. Mccarthy S. Söldner-rembold Graham Wilson D. Gillberg A. S. Ito A. Melnitchouk S. J. Park V. V. Lipaev J. Lellouch D. Boline

subject

Physics Nuclear and High Energy Physics Particle physics 010308 nuclear & particles physics Branching fraction Astrophysics::High Energy Astrophysical Phenomena Scalar (mathematics)Tevatron D0 experiment 7. Clean energy 01 natural sciences Standard Model law.invention Nuclear physics Pair production law 0103 physical sciences High Energy Physics::Experiment Fermilab Nuclear Experiment 010306 general physics Collider

description

A search for pair production of first-generation leptoquarks LQ is performed with data collected by the D0 experiment in p pbar collisions at sqrt(s)=1.96 TeV at the Fermilab Tevatron Collider. In a sample of data corresponding to ~1 fb-1, the search has been performed on the final states with two electrons and two jets or one electron, two jets and missing transverse energy. We find our data consistent with standard model expectations. The results are combined with those found in a previous analysis of events with two jets and missing transverse energy to obtain scalar LQ mass limits. We set 95% C.L. lower limits on a scalar LQ mass of 299 GeV, 284 GeV and 216 GeV for beta=1, beta=0.5 and beta=0.02 respectively, where beta is the LQ branching ratio in the eq channel. This improves the results obtained with a lower luminosity sample from Run II of the Tevatron. Lower limits on vector LQ masses with different couplings from 357 GeV to 464 GeV for beta=0.5 are also set using this analysis.

year	journal	country	edition	language
2009-11-01	Physics Letters B

https://doi.org/10.1016/j.physletb.2009.10.016