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Search for Dilepton Resonances in pp Collisions at √s=7  TeV with the ATLAS Detector

Aad, G. and Gray, H. M. and Marshall, Z. and Mateos, D. Lopez and Perez, K. (2011) Search for Dilepton Resonances in pp Collisions at √s=7  TeV with the ATLAS Detector. Physical Review Letters, 107 (27). p. 272002. ISSN 0031-9007. https://resolver.caltech.edu/CaltechAUTHORS:20120202-160951753

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Abstract

This Letter reports on a search for narrow high-mass resonances decaying into dilepton final states. The data were recorded by the ATLAS experiment in pp collisions at √s=7  TeV at the Large Hadron Collider and correspond to a total integrated luminosity of 1.08 (1.21)  fb^(-1) in the e^(+)e^(-) (μ^(+)μ^(-)) channel. No statistically significant excess above the standard model expectation is observed and upper limits are set at the 95% C.L. on the cross section times branching fraction of Z′ resonances and Randall-Sundrum gravitons decaying into dileptons as a function of the resonance mass. A lower mass limit of 1.83 TeV on the sequential standard model Z′ boson is set. A Randall-Sundrum graviton with coupling k/M̅ _(Pl)=0.1 is excluded at 95% C.L. for masses below 1.63 TeV.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevLett.107.272002DOIUNSPECIFIED
http://link.aps.org/doi/10.1103/PhysRevLett.107.272002PublisherUNSPECIFIED
Additional Information:© 2011 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 7 August 2011; published 29 December 2011. 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, 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; DOE and NSF, U.S. 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 (U.S.), and in the Tier-2 facilities worldwide.
Funders:
Funding AgencyGrant Number
ANPCyT, ArgentinaUNSPECIFIED
YerPhI, ArmeniaUNSPECIFIED
ARC, AustraliaUNSPECIFIED
BMWF, AustriaUNSPECIFIED
ANAS, AzerbaijanUNSPECIFIED
SSTC, BelarusUNSPECIFIED
CNPqUNSPECIFIED
FAPESP, BrazilUNSPECIFIED
NSERCUNSPECIFIED
NRCUNSPECIFIED
CFI, CanadaUNSPECIFIED
CERNUNSPECIFIED
CONICYT, ChileUNSPECIFIED
CASUNSPECIFIED
MOSTUNSPECIFIED
NSFC, ChinaUNSPECIFIED
COLCIENCIAS, ColombiaUNSPECIFIED
MSMT CRUNSPECIFIED
MPO CRUNSPECIFIED
VSC CR, Czech RepublicUNSPECIFIED
DNRFUNSPECIFIED
DNSRCUNSPECIFIED
Lundbeck Foundation, DenmarkUNSPECIFIED
ARTEMISUNSPECIFIED
European UnionUNSPECIFIED
IN2P3-CNRSUNSPECIFIED
CEA-DSM/IRFU, FranceUNSPECIFIED
GNAS, GeorgiaUNSPECIFIED
BMBFUNSPECIFIED
DFGUNSPECIFIED
HGFUNSPECIFIED
MPGUNSPECIFIED
AvH Foundation, GermanyUNSPECIFIED
GSRT, GreeceUNSPECIFIED
ISFUNSPECIFIED
MINERVAUNSPECIFIED
GIFUNSPECIFIED
DIPUNSPECIFIED
Benoziyo Center, IsraelUNSPECIFIED
INFN, ItalyUNSPECIFIED
MEXTUNSPECIFIED
JSPS, JapanUNSPECIFIED
CNRST, MoroccoUNSPECIFIED
FOMUNSPECIFIED
NWO, NetherlandsUNSPECIFIED
RCN, NorwayUNSPECIFIED
MNiSW, PolandUNSPECIFIED
GRICESUNSPECIFIED
FCT, PortugalUNSPECIFIED
MERYS (MECTS), RomaniaUNSPECIFIED
MES of RussiaUNSPECIFIED
ROSATOM, Russian FederationUNSPECIFIED
JINRUNSPECIFIED
MSTD, SerbiaUNSPECIFIED
MSSR, SlovakiaUNSPECIFIED
ARRSUNSPECIFIED
MVZT, SloveniaUNSPECIFIED
DST/NRF, South AfricaUNSPECIFIED
MICINN, SpainUNSPECIFIED
SRCUNSPECIFIED
Wallenberg Foundation, SwedenUNSPECIFIED
SERUNSPECIFIED
SNSFUNSPECIFIED
Cantons of Bern and Geneva, SwitzerlandUNSPECIFIED
NSC, TaiwanUNSPECIFIED
TAEK, TurkeyUNSPECIFIED
STFCUNSPECIFIED
Royal SocietyUNSPECIFIED
Leverhulme Trust, United KingdomUNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
Issue or Number:27
Classification Code:PACS: 13.85.Rm, 12.60.Cn, 14.70.Pw
Record Number:CaltechAUTHORS:20120202-160951753
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20120202-160951753
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:29104
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:08 Feb 2012 00:10
Last Modified:03 Oct 2019 03:38

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