Search for long-lived particles decaying into electron or photon pairs with the D0 detector

6533b7d9fe1ef96bd126cc1e

RESEARCH PRODUCT

Search for long-lived particles decaying into electron or photon pairs with the D0 detector

V. M. Abazov U. Bassler Iain Alexander Bertram Raimund Ströhmer V. Simak D. Edmunds T. Gadfort V. V. Tokmenin S. Robinson Graham Wilson Andre Sznajder Michael Rijssenbeek S. Zelitch H. Da Motta Yuri Gershtein K. W. Merritt D. Gillberg Regina Demina H. A. Neal J. T. Linnemann Brian Thomas Martin P. Padley R. F. Rodrigues O. Mundal K. Yip R. K. Shivpuri F. Tissandier Sung Keun Park J. F. Bartlett P. Banerjee Samuel Calvet Robert Kehoe Andrew White Mitchell Wayne H. Schellman J. M. Kohli Sergio F Novaes R. Unalan Y. Enari T. Moulik Maria Elena Pol A. S. Ito A. Melnitchouk G. C. Blazey I. Torchiani R. Yamada Jean-francois Grivaz V. N. Evdokimov P. Jonsson Thomas Hebbeker D. Khatidze M. H.l.s. Wang Mary Beth Adams L. Stutte Gregory J Pawloski A.s. Dyshkant Jiri Kvita D. R. Claes Gavin Davies Ernest Aguilo Philippe Calfayan S. J. Park S. J. Park J. G.r. Lima Reinhard Schwienhorst S. Desai Petr Vokac Stefan Grünendahl M. Naimuddin V. Hynek D. Duggan M. Arov Grigory Safronov Michael A. Strauss John Hobbs J. Barreto Yurii Maravin Vladimir Gavrilov P. Rubinov B. Gómez S. M. Lietti Y. Scheglov Kaushik De Prolay Mal Alexander Leflat J. Sekaric Shashikant Dugad Sergey Burdin Sergey Burdin A. F. Barfuss M. Eads Alexander Grohsjean P. Lebrun V. V. Lipaev J. Lellouch B. Sanghi Gordon Watts R. Otec C. De Oliveira Martins P. N. Ratoff G. D. Alexeev Flera Rizatdinova C. Belanger-champagne V. Sirotenko S. P. Denisov Lev Uvarov Harald Fox V. A. Bezzubov J. P. Negret S. Lammers Y. A. Yatsunenko B. ÅSman B. Tiller Marco Verzocchi C. Magass Theodoros Christoudias Dugan O'neil E. G. Zverev D. Boline M. Cooke W. L. Prado Da Silva D. K. Cho P. M. Tuts Maksym Titov H. E. Fisk E. Strauss Gilvan Alves A. Patwa Mark Owen J. Clutter Kaushik De T. Scanlon S. W. Youn Michael Hildreth Phillip Gutierrez F. Villeneuve-seguier Michael Mulhearn Jan Stark Ariel Schwartzman M. P. Sanders Viatcheslav Stolin D. Kau I. Ripp-baudot A. Meyer S. Kermiche S. Strandberg Henry Lubatti Suman Bala Beri Jeroen Hegeman Hua-lei Yin Aran Garcia-bellido L. Welty-rieger I. A. Vasilyev Vipin Bhatnagar Vivian O'dell Pedro G Mercadante S. J. De Jong J. Cammin T. Dorland Carlos Avila S. Sumowidagdo S. Uzunyan W. M. Van Leeuwen M. Pangilinan R. Luna Yvonne Peters Sabine Crépé-renaudin B. C.k. Casey Marcia Begalli Robert Hirosky R. Partridge Y. W. Liu A. Juste Pushpalatha C Bhat Aaron Dominguez Markus Wobisch Suyong Choi G. Alkhazov Harrison Prosper B. Spurlock Stephen Wimpenny Zeno Dixon Greenwood Todd Adams M. C. Cousinou P. Polozov Tae Jeong Kim K. Devaughan J. M. Hauptman Cecilia Elena Gerber Y. Xie Amnon Harel Norbert Wermes Meenakshi Narain D. Bauer D. V. Bandurin B. Penning A. Dubey Jovan Mitrevski G. Gutierrez W. Geist Kenneth Bloom Frederic Deliot G. Ginther Martin Grunewald G. Grenier C. Jarvis G. Savage Dmitri Tsybychev R. L. Mccarthy J. Haley J. Rieger Milos Lokajicek V. L. Malyshev L. S. Ancu Marvin Johnson Cristina Galea Jianming Qian N. A. Naumann B. Hoeneisen A. V. Kozelov Lee Sawyer Karl Jakobs D. Karmanov R. K. Mommsen S. Cihangir E. E. Boos A. Alton A. Alton S. Chakrabarti D. Smirnov F. Guo David T. Johnston Darien Wood M. Abolins J. D. Degenhardt Peter Love W. Geng W. Geng Nicholas John Hadley C. P. Buszello M. Awiok Sudhir Malik Heriberto Castilla-valdez Ia Iashvili Brajesh C Choudhary P. Mättig A. Bellavance Fabrice Couderc Helio Nogima M. Kirsch J. Snow K. Peters S. Söldner-rembold S. Fu X. B. Bu Gregorio Bernardi D. Denisov R. Illingworth S. Blessing N. K. Mondal Jun Guo Q. Z. Li Scott Snyder H. T. Diehl E. Carrera T. A. Bolton B. G. Pope R. J. Madaras N. Khalatyan S. Yacoob M. Arthaud Calvin A. Johnson G. Hesketh P. J. Van Den Berg Marc Besancon Y. Pogorelov Hal Evans Thomas Ferbel L. Christofek Lars Sonnenschein J. A. Parsons J. Osta A. Boehnlein D. Lam A. A. Shchukin P. A. Kasper Elizaveta Shabalina F. Chevallier A. Das M. Demarteau Liang Li M. Sosebee Timothy Andeen George Alverson Jean-arcady Meyer Jean-arcady Meyer Carmen García J. Ellison M. Ahsan S. Uvarov W. M. Lee S. Beale Frank Fiedler Sa. Jain S. Fuess T. Kurca D. Hedin Marc Weber Marc Weber K. Herner Lev Dudko D. Onoprienko B. Quinn H. Nilsen A. C.s. Assis Jesus H. Hoeth Guennadi Borissov Freya Blekman A. Evdokimov S. Hossain E. Kajfasz C. Schwanenberger Alice Bean A. Jonckheere Nikos Varelas Hwi Dong Yoo Philip Baringer Zdenek Hubacek Bing Zhou Luis Mendoza I. Hall J. Piper A. Lobodenko L. Bagby W. C. Fisher S. Banerjee K. M. Chan Christian Zeitnitz N. Oshima E. De La Cruz-burelo Daria Zieminska R. D. Schamberger Andrew Brandt L. Zivkovic Jonas Strandberg T. R. Wyatt Neeti Parashar Kirti Ranjan Carsten Hensel Carsten Hensel T. Kuhl M. Jaffré M. Zielinski Dorothee Schaile J. Hays Alexander Kupco M. Buehler Mark Richard James Williams N. Parua D. Vilanova Randy Ruchti M. Hohlfeld Wendy Taylor Sharon Hagopian A. K.a. Maciel V. Bunichev Roger Moore M. H. Kirby P. Neustroev V. Siccardi R. Piegaia R. Jesik K. A. Johns A. Magerkurth B. S. Acharya A. Chandra Christophe Royon L. Duflot H. D. Wahl T. Nunnemann B. Baldin J. K. Lim F. Badaud Christopher George Tully C. Biscarat Mansoora Shamim N. Osman Y. M. Kharzheev P. Vint Patrick Slattery A. P. Heinson T. Yasuda G. S. Muanza Adam L. Lyon A. V. Popov Andre Sopczak Kristian Harder T. H. Burnett D. Cutts Wagner Carvalho R. E. Hall Greg Landsberg Pedrame Bargassa B. Andrieu Elliott Cheu O. Atramentov K. Soustruznik N. J. Buchanan T. Schliephake Victor Daniel Elvira V. V. Shary M. Anastasoaie P. Rich Arnulf Quadt Arnulf Quadt G. Sajot Y. Hu J. A. Benitez Christophe Ochando A. Sanchez-hernandez M. S. Rangel P. Renkel Elemer Nagy Gustaaf Brooijmans V. Zutshi M. S. Anzelc V. Cuplov Z. Liu Sarah Catherine Eno Horst Severini D. Wicke V. M. Podstavkov Andrew Askew G. J. Otero Y Garzón S. Schlobohm Dennis Stephen Mackin Ulrich Heintz Brigitte Vachon J. Warchol W. C. Yang H. Greenlee Maxim Perfilov D. M. Strom Avto Kharchilava M. Fortner Junjie Zhu A. Rakitine N. Gollub A. Bross Richard B. Lipton Ph Gris L. Bellantoni Helena Malbouisson Serban Protopopescu M. Aoki Andy Haas P. Svoisky P. Verdier Frank Filthaut M. Diesburg P. Houben A. Tanasijczuk J. N. Butler P. D. Grannis G. Weber D. Chakraborty Don Lincoln Alexander Khanov V. A. Kuzmin D. A. Stoyanova J. Steele Emanuela Barberis Erich Varnes M. Petteni R. Van Kooten Ashok Kumar J. M. Kalk Michael Begel Eduardo De Moraes Gregores Boris Tuchming M. D. Corcoran Jing Li Florent Lacroix C. Potter Luiz Mundim Deidre Brown Marc-andre Pleier Tulika Bose L. Han P. Skubic A. Zieminski A. Wenger A. Wenger M. A. Strang V. Buescher M. Rominsky P. Haefner Tiefu Zhao J. K. Kraus P. L.m. Podesta-lerma P. L.m. Podesta-lerma Brad Abbott Pierre Petroff A. V. Ferapontov L. S. Vertogradov R. G. Wagner Y. Arnoud R. Bernhard W. E. Cooper Mikko Voutilainen Mikko Voutilainen Arnaud Duperrin Jong-sung Yu G. Obrant Shabnam Jabeen M. Merkin Raymond Brock Boaz Klima I. Katsanos R. Beuselinck P.f. Ermolov M. Wetstein J. P. Konrath H. Dong D. Buchholz P. Tamburello Anna Goussiou J. Dyer Gregory R Snow

subject

Quark Physics Particle physics Photon 010308 nuclear & particles physics FOS: Physical sciences General Physics and Astronomy Elementary particle Electron 01 natural sciences High Energy Physics - Experiment Nuclear physics Massless particle High Energy Physics - Experiment (hep-ex)Particle decay Pair production 13.85.Qk 13.85.Rm 14.65.-q 14.80.-j 0103 physical sciences [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physics Lepton

description

In this Letter we report on a search for long-lived particles that decay into final states with two electrons or photons. Such long-lived particles arise in a variety of theoretical models, like hidden valleys and supersymmetry with gauge-mediated breaking. By precisely reconstructing the direction of the electromagnetic shower we are able to probe much longer lifetimes than previously explored. We see no evidence of the existence of such long-lived particles and interpret this search as a quasi model-independent limit on their production cross section, as well as a limit on a long-lived fourth generation quark.

year	journal	country	edition	language
2008-09-12

10.1103/physrevlett.101.111802 http://hal.in2p3.fr/in2p3-00289673