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Search for single b^∗-quark production with the ATLAS detector at √s = 7 TeV

Aad, G. and Perez, K. (2013) Search for single b^∗-quark production with the ATLAS detector at √s = 7 TeV. Physics Letters B, 721 (4-5). pp. 171-189. ISSN 0370-2693. https://resolver.caltech.edu/CaltechAUTHORS:20130530-075144867

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Abstract

The results of a search for an excited bottom-quark b∗ in pp collisions at √s = 7 TeV, using 4.7 fb^(−1) of data collected by the ATLAS detector at the LHC are presented. In the model studied, a single b^∗-quark is produced through a chromomagnetic interaction and subsequently decays to a W boson and a top quark. The search is performed in the dilepton and lepton+jets final states, which are combined to set limits on b^∗-quark couplings for a range of b^∗-quark masses. For a benchmark with unit size chromomagnetic and Standard Model-like electroweak b^∗ couplings, b^∗ quarks with masses less than 870 GeV are excluded at the 95% credibility level.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.physletb.2013.03.016DOIUNSPECIFIED
http://www.sciencedirect.com/science/article/pii/S0370269313002281PublisherUNSPECIFIED
Additional Information:© 2013 CERN. Published by Elsevier B.V. © CERN for the benefit of the ATLAS Collaboration. Received 8 January 2013. Received in revised form 19 February 2013. Accepted 5 March 2013. Available online 18 March 2013. Editor: W.-D. Schlatter This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited. 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 and FWF, 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, ERC and NSRF, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT and NSRF, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and 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), 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.
Funders:
Funding AgencyGrant Number
ANPCyT (Argentina)UNSPECIFIED
YerPhl (Armenia)UNSPECIFIED
ARC (Australia)UNSPECIFIED
BMWF and FWF (Austria)UNSPECIFIED
ANAS (Azerbaijan)UNSPECIFIED
SSTC (Belarus)UNSPECIFIED
CNPq and FAPESP (Brazil)UNSPECIFIED
NRC and CFI (Canada)UNSPECIFIED
NSERC (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
EPLANETUNSPECIFIED
ERC and NSRFUNSPECIFIED
European UnionUNSPECIFIED
IN2P3-CNRS (France)UNSPECIFIED
CEA-DSM/IRFU (France)UNSPECIFIED
GNSF (Georgia)UNSPECIFIED
BMBF (Germany)UNSPECIFIED
DFG (Germany)UNSPECIFIED
HGF (Germany)UNSPECIFIED
MPG and AvH Foundation (Germany)UNSPECIFIED
GSRT and NSRF (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
BRF and 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 (United Kingdom)UNSPECIFIED
Royal Society and Leverhulme Trust (United Kingdom)UNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
Subject Keywords:ATLAS b^∗ Single top-quark Excited quark
Issue or Number:4-5
Record Number:CaltechAUTHORS:20130530-075144867
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130530-075144867
Official Citation:ATLAS Collaboration, Search for single -quark production with the ATLAS detector at, Physics Letters B, Volume 721, Issues 4–5, 25 April 2013, Pages 171-189, ISSN 0370-2693, 10.1016/j.physletb.2013.03.016. (http://www.sciencedirect.com/science/article/pii/S0370269313002281)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:38709
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:30 May 2013 15:44
Last Modified:03 Oct 2019 04:59

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