Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 8, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP08(2015)148
Keywords
Exotics; Hadron-Hadron Scattering; Top physics
Categories
Funding
- ANPCyT, Argentina
- YerPhI, Armenia
- ARC, Australia
- BMWFW, Austria
- ANAS, Azerbaijan
- SSTC, Belarus
- CNPq, Brazil
- FAPESP, Brazil
- NSERC, Canada
- NRC, Canada
- CFI, Canada
- CERN
- CONICYT, Chile
- CAS, China
- MOST, China
- NSFC, China
- COLCIENCIAS, Colombia
- MSMT CR, Czech Republic
- MPO CR, Czech Republic
- VSC CR, Czech Republic
- DNRF, Denmark
- DNSRC, Denmark
- Lundbeck Foundation, Denmark
- EPLANET
- ERC
- NSRF
- European Union
- IN2P3-CNRS, France
- CEA-DSM/IRFU, France
- GNSF, Georgia
- BMBF, Germany
- DFG, Germany
- HGF, Germany
- MPG, Germany
- AvH Foundation, Germany
- GSRT, Greece
- NSRF, Greece
- RGC, China
- Hong Kong SAR, China
- ISF, Israel
- MINERVA, Israel
- GIF, Israel
- I-CORE, Israel
- Benoziyo Center, Israel
- INFN, Italy
- MEXT, Japan
- JSPS, Japan
- CNRST, Morocco
- FOM, Netherlands
- NWO, Netherlands
- BRF, Norway
- RCN, Norway
- MNiSW, Poland
- NCN, Poland
- GRICES, Portugal
- FCT, Portugal
- MNE/IFA, Romania
- MES of Russia, Russian Federation
- NRC KI, Russian Federation
- JINR
- MSTD, Serbia
- MSSR, Slovakia
- ARRS, Slovenia
- MIZ. S, Slovenia
- DST/NRF, South Africa
- MINECO, Spain
- SRC, Sweden
- Wallenberg Foundation, Sweden
- SER, Switzerland
- SNSF, Switzerland
- Cantons of Bern and Geneva, Switzerland
- NSC, Taiwan
- TAEK, Turkey
- STFC, United Kingdom
- Royal Society and Leverhulme Trust, United Kingdom
- DOE, United States of America
- NSF, United States of America
- ICREA Funding Source: Custom
- STFC [PP/E000355/1, ST/L003112/1, ST/I000178/1, PP/E003087/1, ST/I000186/1, ST/M004821/1, PP/D002915/1, ST/K50208X/1, ST/H00100X/1, ST/L001144/1, ST/H00100X/2, PP/E000347/1, ST/L006480/1, ST/I006056/1, ST/K00137X/1, ST/K00073X/1, ST/K001248/1, ST/G50228X/1, ST/H001093/2, ST/M001431/1, ST/K001329/1, ST/M001733/1, ST/K001388/1, ST/N000277/1, ST/K001361/1, ST/L000970/1, ST/M000664/1, ST/J005576/1, ST/M000761/1, ST/L00352X/1, ST/M503575/1, ST/M002306/1, ST/L003511/1, ST/K001302/1, ST/L003325/1, ST/J004944/1, ST/K00140X/1, ST/I005803/1, ST/M003213/1, ST/N000420/1, ST/M001504/1, ST/J00474X/1, ST/N000463/1, ST/J501074/1, ST/M006980/1, ST/M001407/1, ST/K000705/1, ST/J005525/1, ST/J005487/1, ST/N000307/1, ST/H001093/1, ST/L001195/1, ST/I006080/1, ST/G502320/1, ST/L003414/1, ST/L001179/1, ST/K003658/1, ST/I00372X/1, ST/J004928/1, PP/E002846/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/L000970/1 ATLAS Upgrades, ST/M004821/1 GRIDPP, ST/L003325/1, ST/I00372X/1, ST/J00474X/1, PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/L003112/1, ST/L00352X/1, ST/H001093/1, 1366825, ST/K001361/1, ST/K001302/1, ST/K001264/1 ATLAS, ST/I005803/1 GRIDPP, ST/M000761/1, ST/K001248/1, ST/K001361/1 ATLAS, ST/M003213/1, ST/G50228X/1, ST/L001195/1, ST/M001407/1, ST/M002306/1 ATLAS Upgrades, ST/L000970/1 ATLAS Upgrade, ST/K001396/1 ATLAS, ST/I000178/1, ST/K003658/1 GRIDPP, ST/M006980/1, ST/M002071/1 ATLAS Upgrades, 1521422, PP/D002915/1, ST/J005525/1, ST/M001474/1, ST/M000664/1, ST/J501074/1, ST/K003658/1, ST/L001179/1 ATLAS Upgrades, ST/M503575/1, ST/I005803/1, ST/L006480/1, ST/M007103/1 ATLAS Upgrades, ST/K001310/1 ATLAS, ST/K001361/1 MINOS/MINOS+, ST/I00372X/1 GRIDPP, ST/M001431/1, ST/G502320/1, ST/L001209/1 ATLAS Upgrades, ST/K00137X/1, ST/L001179/1, ST/N000463/1, ST/H001093/2, ST/L003414/1, ST/N000277/1, 1366364, ST/J004944/1, ST/M001504/1, ST/I006056/1, ST/K001418/1, ATLAS, ST/K001329/1, 1575161, ST/K000705/1, ST/N000420/1, ST/J005576/1, ST/K001310/1 LHCb Upgrades, ST/M006980/1 ATLAS Upgrades, ST/K001388/1, ST/I000186/1, ST/I006080/1, ST/N000307/1, ST/J004928/1, PP/E003087/1, ST/H00100X/2, ST/L001144/1, ST/M004821/1, PP/E002846/1, ST/M001733/1, ST/J00474X/1 ATLAS Upgrades, 1334588, ST/K001310/1, PP/E000444/1, 1201187, 1082012, GRIDPP, ST/K00073X/1, ST/M002306/1, ST/L001179/1 ATLAS Upgrade, ST/K001310/1 ATLAS Upgrades, ST/K001361/1 ATLAS Upgrades, ST/I006056/1 ATLAS Upgrade, ST/I006056/1 ATLAS Upgrades, PP/E000355/1, ST/K50208X/1, ST/J005487/1, ST/J004928/1 ATLAS Upgrades, ST/H00100X/1, ST/L000970/1, ST/K001361/1 LHCb, ST/J004928/1 ATLAS Upgrade, ST/L003511/1, ST/K001310/1 LHCb, ST/K001426/1 ATLAS, ST/K00140X/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1506173, 1119200] Funding Source: National Science Foundation
Ask authors/readers for more resources
A search for new particles that decay into top quark pairs is reported. The search is performed with the ATLAS experiment at the LHC using an integrated luminosity of 20.3 fb(-1) of proton-proton collision data collected at a centre-of-mass energy of root s = 8TeV. The lepton-plus-jets final state is used, where the top pair decays to W (+) bW(-)(b) over bar, with one W boson decaying leptonically and the other hadronically. The invariant mass spectrum of top quark pairs is examined for local excesses or deficits that are inconsistent with the Standard Model predictions. No evidence for a top quark pair resonance is found, and 95% confidence-level limits on the production rate are determined for massive states in benchmark models. The upper limits on the cross-section times branching ratio of a narrow Z' boson decaying to top pairs range from 4.2 pb to 0.03 pb for resonance masses from 0.4 TeV to 3.0 TeV. A narrow leptophobic topcolour Z' boson with mass below 1.8 TeV is excluded. Upper limits are set on the cross-section times branching ratio for a broad colour-octet resonance with Gamma/m = 15% decaying to tt. These range from 4.8 pb to 0.03 pb for masses from 0.4 TeV to 3.0 TeV. A Kaluza-Klein excitation of the gluon in a Randall-Sundrum model is excluded for masses below 2.2 TeV.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available