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A search for narrow resonances with a mass of at least 1 TeV in the dijet mass spectrum is performed using pp collisions at root s = 7 TeV corresponding to an integrated luminosity of 1 fb(-1), collected by the CMS experiment at the LHC. No resonances are observed. Upper limits at the 95% confidence level are presented on the product of the resonance cross section, branching fraction into dijets, and acceptance, separately for decays into quark-quark, quark-gluon, and gluon-gluon pairs. The data exclude new particles predicted in the following models at the 95% confidence level: string resonances with mass less than 4.00 TeV, E(6) diquarks with mass less than 3.52 TeV, excited quarks with mass less than 2.49 TeV, axigluons and colorons with mass less than 2.47 TeV, and W' bosons with mass less than 1.51 TeV. These results extend previous exclusions from the dijet mass search technique. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.
Titolo: | Search for resonances in the dijet mass spectrum from 7 TeV pp collisions at CMS |
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Boutemeur M Eno SC Ferencek D Gomez JA Hadley NJ Kellogg RG Kirn M Lu Y Mignerey AC Rossato K Rumerio P Santanastasio F Skuja A Temple J Tonjes MB Tonwar SC Twedt E Alver B Bauer G Bendavid J Busza W Butz E Cali IA Chan M Dutta V Everaerts P Ceballos GG Goncharov M Hahn KA Harris P Kim Y Klute M Lee YJ Li W Loizides C Luckey PD Ma T Nahn S Paus C Ralph D Roland C Roland G Rudolph M Stephans GSF Stockli F Sumorok K Sung K Velicanu D Wenger EA Wolf R Xie S Yang M Yilmaz Y Yoon AS Zanetti M Cooper SI Cushman P Dahmes B De Benedetti A Franzoni G Gude A Haupt J Klapoetke K Kubota Y Mans J Pastika N Rekovic V Rusack R Sasseville M Singovsky A Tambe N Turkewitz J Cremaldi LM Godang R Kroeger R Perera L Rahmat R Sanders DA Summers D Bloom K Bose S Butt J Claes DR Dominguez A Eads M Jindal P Keller J Kelly T Kravchenko I Lazo Flores J Malbouisson H Malik S Snow GR Baur U Godshalk A Iashvili I Jain S Kharchilava A Kumar A Shipkowski SP Smith K Alverson G Barberis E Baumgartel D Boeriu O Chasco M 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Ecklund KM Geurts FJM Padley BP Redjimi R Roberts J Zabel J Betchart B Bodek A Chung YS Covarelli R de Barbaro P Demina R Eshaq Y Flacher H Garcia Bellido A Goldenzweig P Gotra Y Han J Harel A Miner DC Orbaker D Petrillo G Sakumoto W Vishnevskiy D Zielinski M Bhatti A Ciesielski R Demortier L Goulianos K Lungu G Malik S Mesropian C Arora S Atramentov O Barker A Contreras Campana C Contreras Campana E Duggan D Gershtein Y Gray R Halkiadakis E Hidas D Hits D Lath A Panwalkar S Patel R Richards A Rose K Schnetzer S Somalwar S Stone R Thomas S Cerizza G Hollingsworth M Spanier S Yang ZC York A Eusebi R Flanagan W Gilmore J Gurrola A Kamon T Khotilovich V Montalvo R Osipenkov I Pakhotin Y Safonov A Sengupta S Suarez I Tatarinov A Toback D Akchurin N Bardak C Damgov J Dudero PR Jeong C Kovitanggoon K Lee SW Libeiro T Mane P Roh Y Sill A Volobouev I Wigmans R Yazgan E Appelt E Brownson E Engh D Florez C Gabella W Issah M Johns W Johnston C Kurt P Maguire C Melo A Sheldon P Snook B Tuo S Velkovska J Arenton MW Balazs M Boutle S Cox B Francis B Goadhouse S Goodell J Hirosky R Ledovskoy A Lin C Neu C Wood J Yohay R Gollapinni S Harr R Karchin PE Don CKK Lamichhane P Mattson M Milstene C Sakharov A Anderson M Bachtis M Belknap D Bellinger JN Carlsmith D Cepeda M Dasu S Efron J Gray L Grogg KS Grothe M Hall Wilton R Herndon M Herve A Klabbers P Klukas J Lanaro A Lazaridis C Leonard J Loveless R Mohapatra A Ojalvo I Parker W Ross I Savin A Smith WH Swanson J Weinberg M. |
Data di pubblicazione: | 2011 |
Rivista: | |
Abstract: | A search for narrow resonances with a mass of at least 1 TeV in the dijet mass spectrum is performed using pp collisions at root s = 7 TeV corresponding to an integrated luminosity of 1 fb(-1), collected by the CMS experiment at the LHC. No resonances are observed. Upper limits at the 95% confidence level are presented on the product of the resonance cross section, branching fraction into dijets, and acceptance, separately for decays into quark-quark, quark-gluon, and gluon-gluon pairs. The data exclude new particles predicted in the following models at the 95% confidence level: string resonances with mass less than 4.00 TeV, E(6) diquarks with mass less than 3.52 TeV, excited quarks with mass less than 2.49 TeV, axigluons and colorons with mass less than 2.47 TeV, and W' bosons with mass less than 1.51 TeV. These results extend previous exclusions from the dijet mass search technique. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved. |
Handle: | http://hdl.handle.net/20.500.11769/9653 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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