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Search for Pair Production of a Heavy Up-Type Quark Decaying to a W Boson and a b Quark in the lepton + jets Channel with the ATLAS Detector

Aad, G. and Gray, H. M. and Marshall, Z. and Mateos, D. Lopez and Perez, K. (2012) Search for Pair Production of a Heavy Up-Type Quark Decaying to a W Boson and a b Quark in the lepton + jets Channel with the ATLAS Detector. Physical Review Letters, 108 (26). Art. No. 261802. ISSN 0031-9007. https://resolver.caltech.edu/CaltechAUTHORS:20120717-071952458

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Abstract

A search is presented for production of a heavy up-type quark (t) together with its antiparticle, assuming subsequent decay to a W boson and a b quark, t't'→W^+bW^-b. The search is based on 1.04  fb^(-1) of proton-proton collisions at √s=7  TeV collected by the ATLAS detector at the CERN Large Hadron Collider. Data are analyzed in the lepton+jets final state, characterized by a high transverse momentum isolated electron or muon, high missing transverse momentum, and at least three jets. No significant excess of events above the background expectation is observed. A 95% C.L. lower limit of 404 GeV is set for the mass of the t′ quark.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevLett.108.261802DOIUNSPECIFIED
http://link.aps.org/doi/10.1103/PhysRevLett.108.261802PublisherUNSPECIFIED
http://prl.aps.org/abstract/PRL/v108/i26/e261802PublisherUNSPECIFIED
Additional Information:© 2012 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Received 14 February 2012; published 26 June 2012. We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC, and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST, and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR, and VSC CR, Czech Republic; DNRF, DNSRC, and Lundbeck Foundation, Denmark; ARTEMIS and ERC, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNAS, Georgia; BMBF, DFG, HGF, MPG, and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP, and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, The Netherlands; RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF, and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society, and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular, from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CCIN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (The Netherlands), PIC (Spain), ASGC (Taiwan), RAL (United Kingdom), and BNL (USA) and in the Tier-2 facilities worldwide.
Funders:
Funding AgencyGrant Number
ANPCyT (Argentina)UNSPECIFIED
YerPhl (Armenia)UNSPECIFIED
ARC (Australia)UNSPECIFIED
BMWF (Austria)UNSPECIFIED
ANAS (Azerbaijan)UNSPECIFIED
SSTC (Belarus)UNSPECIFIED
CNPq and FAPESP (Brazil)UNSPECIFIED
NSERC (Canada)UNSPECIFIED
NRC and CFI (Canada)UNSPECIFIED
CERNUNSPECIFIED
CONICYT (Chile)UNSPECIFIED
CASUNSPECIFIED
MOST and NSFC (China)UNSPECIFIED
COLCIENCIAS (Colombia)UNSPECIFIED
MSMT CR (Czech Republic)UNSPECIFIED
MPO CR and VSC CR (Czech Republic)UNSPECIFIED
DNRF (Denmark)UNSPECIFIED
DNSRC and Lundbeck Foundation (Denmark)UNSPECIFIED
ARTEMIS and ERCUNSPECIFIED
European UnionUNSPECIFIED
IN2P3-CNRS (France)UNSPECIFIED
CEA-DSM/IRFU (France)UNSPECIFIED
GNAS (Georgia)UNSPECIFIED
BMBF (Germany)UNSPECIFIED
DFG (Germany)UNSPECIFIED
HGF (Germany)UNSPECIFIED
MPG and AvH Foundation (Germany)UNSPECIFIED
GSRT (Greece)UNSPECIFIED
ISF (Israel)UNSPECIFIED
MINERVA (Israel)UNSPECIFIED
GIF (Israel)UNSPECIFIED
DIP and Benoziyo Center (Israel)UNSPECIFIED
INFN (Italy)UNSPECIFIED
MEXT and JSPS (Japan)UNSPECIFIED
CNRST (Morocco)UNSPECIFIED
FOM and NWO (The Netherlands)UNSPECIFIED
RCN (Norway)UNSPECIFIED
MNiSW (Poland)UNSPECIFIED
GRICES and FCT (Portugal)UNSPECIFIED
MERYS (MECTS) (Romania)UNSPECIFIED
MES of Russia and ROSATOMUNSPECIFIED
Russian FederationUNSPECIFIED
JINRUNSPECIFIED
MSTD (Serbia)UNSPECIFIED
MSSR (Slovakia)UNSPECIFIED
ARRS and MVZT (Slovenia)UNSPECIFIED
DST/NRF (South Africa)UNSPECIFIED
MICINN (Spain)UNSPECIFIED
SRC and Wallenberg Foundation (Sweden)UNSPECIFIED
SER (Switzerland)UNSPECIFIED
SNSF and Cantons of Bern in Geneva (Switzerland)UNSPECIFIED
NSC (Taiwan)UNSPECIFIED
TAEK (Turkey)UNSPECIFIED
STFC (UK)UNSPECIFIED
Royal Society and Leverhulme Trust (United Kingdom)UNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
Issue or Number:26
Classification Code:PACS: 14.65.Jk, 12.60.-i, 13.85.Rm, 14.80.-j
Record Number:CaltechAUTHORS:20120717-071952458
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20120717-071952458
Official Citation:Search for Pair Production of a Heavy Up-Type Quark Decaying to a W Boson and a b Quark in the lepton+jets Channel with the ATLAS Detector G. Aad et al. (ATLAS Collaboration) Published 26 June 2012 (18 pages) 261802
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32490
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:17 Jul 2012 14:54
Last Modified:03 Oct 2019 04:01

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