CERN Accelerating science

ATLAS Conference Notes

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2014-10-13
11:10
Evidence for Higgs boson Yukawa couplings in the $H\to\tau\tau$ decay mode with the ATLAS detector
Results of a search for $H\to\tau\tau$ decays are presented, based on the full set of proton-proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. [...]
ATLAS-CONF-2014-061.
- 2014. - 52 p.
Original Communication (restricted to ATLAS) - Full text

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2014-10-13
10:24
Observation and measurement of Higgs boson decays to $WW^\ast$ with ATLAS at the LHC
We report the observation of the production of the Higgs boson in its decay to $WW^\ast$, based on an excess over background in the dilepton final state of $6.1$ standard deviations, where the standard model expectation is $5.8$ standard deviations. [...]
ATLAS-CONF-2014-060.
- 2014. - 77 p.
Original Communication (restricted to ATLAS) - Full text

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2014-10-02
00:34
Differential top–antitop production cross-section measurements in pp collisions at $\sqrt{s} = 7$ TeV as a function of pseudo-top-quark observables in the single-lepton channel using the ATLAS detector
The differential top-quark pair production cross-section is presented in terms of a top-quark proxy observable referred to as the pseudo-top-quark whose dependence on theoretical models is minimal. [...]
ATLAS-CONF-2014-059.
- 2014. - 30 p.
Original Communication (restricted to ATLAS) - Full text

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2014-10-01
00:14
Estimation of non-prompt and fake lepton backgrounds in final states with top quarks produced in proton-proton collisions at \sqrt{s}=8~TeV with the ATLAS detector
This note presents methods for estimating non-prompt and fake lepton backgrounds developed in the context of top analyses using the ATLAS detector. [...]
ATLAS-CONF-2014-058.
- 2014.
Original Communication (restricted to ATLAS) - Full text

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2014-09-30
18:36
Measurement of the differential cross-section of highly boosted top quarks as a function of their transverse momentum using the ATLAS detector in $\sqrt{s}$ = 8 TeV proton-proton collisions
The differential cross-section for boosted top quark pair production is measured in 20.3~\ifb\ of proton-proton collisions at a center-of-mass energy of 8 TeV. [...]
ATLAS-CONF-2014-057.
- 2014. - 17 p.
Original Communication (restricted to ATLAS) - Full text

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2014-09-30
17:28
Measurement of spin correlation in top–antitop quark events and search for top squark pair production in proton–proton collisions at $\sqrt{s}$=8 TeV using the ATLAS detector
A measurement of spin correlation in $t\bar{t}$ production is presented using data collected with the ATLAS detector at the Large Hadron Collider (LHC) in proton--proton collisions at a center-of-mass energy of $8$ TeV, corresponding to an integrated luminosity of $20.3$~fb$^{-1}$. [...]
ATLAS-CONF-2014-056.
- 2014. - 13 p.
Original Communication (restricted to ATLAS) - Full text

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2014-09-30
17:25
Measurement of the top quark mass in topologies enhanced with single top-quarks produced in the t-channel in $\sqrt{s}=8\,\mathrm{TeV}$ ATLAS data
This note presents a measurement of the top quark mass in topologies enhanced with single top quarks produced in the $t$-channel via weak interaction produced via weak interactions. [...]
ATLAS-CONF-2014-055.
- 2014.
Original Communication (restricted to ATLAS) - Full text

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2014-09-30
17:22
Combination of ATLAS and CMS top quark pair cross section measurements in the $e\mu$ final state using proton-proton collisions at $\sqrt{s}$= 8 TeV
A combination of top-quark pair production cross-section ($\sigma_{\rm t\bar t}$) measurements at a centre-of-mass energy of 8 TeV performed by the ATLAS and CMS experiments at the LHC in the di-lepton channels is presented. [...]
ATLAS-CONF-2014-054.
- 2014. - 8 p.
Original Communication (restricted to ATLAS) - Full text

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2014-09-30
17:18
Determination of the top-quark pole mass using tt+1-jet events collected with the ATLAS experiment in 7 TeV pp collisions
The normalized differential cross section of top-quark pair production in association with jets in the semileptonic ($e,\mu+$jets) top-quark pair decay channel has been investigated as a function of the nverse of the invariant mass of the $t\bar{t}+1-$jet system. [...]
ATLAS-CONF-2014-053.
- 2014. - 18 p.
Original Communication (restricted to ATLAS) - Full text

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2014-09-29
21:11
Combination of cross-section measurements for associated production of a single top-quark and a W boson at $\sqrt{s}=8$ TeV with the ATLAS and CMS experiments
A combination of cross-section measurements for the associated production of a top quark and a $W$ boson in proton-proton collisions at $\sqrt{s}=8$ TeV by the ATLAS and CMS experiments is presented. [...]
ATLAS-CONF-2014-052.
- 2014. - 17 p.
Original Communication (restricted to ATLAS) - Full text

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