Published July 23, 2012
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Journal Article
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Search for pair-produced heavy quarks decaying to Wq in the two-lepton channel at √(s)=7 TeV with the ATLAS detector
Abstract
A search is presented for heavy-quark pair production (QQ) under the decay hypothesis QQ → W^+ qW^-q with q=d, s, b for up-type Q or q=u, c for down-type Q. The search is performed with 1.04 fb-1 of integrated luminosity from pp collisions at √s = 7 TeV collected by the ATLAS detector at the CERN LHC. Dilepton final states are selected, requiring large missing transverse momentum and at least two jets. Mass reconstruction of heavy-quark candidates is performed by assuming that the W boson decay products are nearly collinear. The data are in agreement with standard model expectations; a heavy quark with mass less than 350 GeV is excluded at 95% confidence level.
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 15 February 2012; published 23 July 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; EPLANET 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, 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; and DOE and NSF, USA. 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), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK), and BNL (USA) and in the Tier-2 facilities worldwide.Attached Files
Published - PhysRevD.86.012007.pdf
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PhysRevD.86.012007.pdf
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Additional details
- Eprint ID
- 33288
- Resolver ID
- CaltechAUTHORS:20120817-095616770
- ANPCyT (Argentina)
- YerPhl (Armenia)
- ARC (Australia)
- BMWF (Austria)
- ANAS (Azerbaijan)
- SSTC (Belarus)
- CNPq and FAPESP (Brazil)
- NSERC (Canada)
- NRC and CFI (Canada)
- CERN
- CONICYT (Chile)
- CAS
- MOST and NSFC (China)
- COLCIENCIAS (Colombia)
- MSMT CR (Czech Republic)
- MPO CR and VSC CR (Czech Republic)
- DNRF (Denmark)
- DNSRC and Lundbeck Foundation (Denmark)
- EPLANET and ERC
- IN2P3-CNRS (France)
- CEA-DSM/IRFU (France)
- GNAS (Georgia)
- BMBF (Germany)
- DFG (Germany)
- HGF (Germany)
- MPG and AvH Foundation (Germany)
- GSRT (Greece)
- ISF (Israel)
- MINERVA (Israel)
- GIF (Israel)
- 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 (Switzerland)
- SNSF and Cantons of Bern in Geneva (Switzerland)
- NSC (Taiwan)
- TAEK (Turkey)
- STFC (United Kingdom)
- Royal Society and Leverhulme Trust (United Kingdom)
- Department of Energy (DOE)
- NSF
- Created
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2012-08-17Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field