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ATLAS Preprints

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2020-09-11
09:28
Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton-proton collisions / ATLAS Collaboration
Jet substructure has provided new opportunities for searches and measurements at the LHC. [...]
arXiv:2009.04986 ; CERN-EP-2020-134. - 2020. - 65 p.
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2020-09-04
06:13
Experimental status of CPV in $B_s^0$ mixing / Mejia Guisao, Jhovanny Andres (Antioquia U.)
This proceeding contribution presents the latest measurement of the CP-violation and other physics parameters in the $B_s^0 \to J/\psi \phi$ decay channel performed by the ATLAS, CMS and LHCb experiments. [...]
arXiv:2008.08199. - 2020. - 9 p.
00000 Contours of 68\% confidence level in the \phis-\DGs{} plane, showing ATLAS results for 7 TeV and 8 TeV data (blue dashed-dotted curve), for 13 TeV data (green dashed curve) and for 13 TeV data combined with 7 TeV and 8 TeV (red solid curve) data. The Standard Model prediction is shown as a very thin black rectangle. In all contours the statistical and systematic uncertainties are combined in quadrature and correlations are taken into account. Taken from~\cite{ref:cpvATLAS}. - 00001 The two-dimensional likelihood contours at 68\% CL in the \phis-\DGs{} plane, for the CMS 8~TeV (dashed green line), 13~TeV (dashed blue line), and the combined (solid red line) results. The SM prediction is shown as the black rectangle. Taken from~\cite{ref:cpvCMS}. - Fulltext

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2020-09-03
04:32
Measurements of top quark properties at the LHC / Yazgan, Efe (Taiwan, Natl. Taiwan U.)
Recent measurements of top quark properties at the LHC made with the ATLAS and CMS experiments are discussed. [...]
arXiv:2009.00297 ; CMS CR-2020/118. - 7 p.
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2020-08-24
10:39
Medium-induced modification of Z-tagged charged particle yields in Pb+Pb collisions at 5.02 TeV with the ATLAS detector / ATLAS Collaboration
The yield of charged particles opposite to a $Z$ boson with large transverse momentum ($p_{T}$) is measured in 260 ${pb}^{-1}$ of $pp$ and 1.7 ${nb}^{-1}$ of Pb+Pb collision data at 5.02 TeV per nucleon pair recorded with the ATLAS detector at the Large Hadron Collider. [...]
arXiv:2008.09811 ; CERN-EP-2020-148. - 2020. - 28 p.
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2020-08-20
05:49
Search for type-III seesaw heavy leptons in dilepton final states in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector / ATLAS Collaboration
A search for the pair production of heavy leptons as predicted by the type-III seesaw mechanism is presented. [...]
arXiv:2008.07949 ; CERN-EP-2020-130. - 2020. - 41 p.
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2020-08-18
04:05
Search for new phenomena in top quark interactions / Skovpen, K. (Gent U.)
The study of the processes with the production of top quarks represents a unique possibility to test the standard model (SM) predictions and probe the new physics effects. [...]
arXiv:2008.06303. - 4 p.
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2020-08-15
04:20
Search for heavy resonances decaying into a photon and a hadronically decaying Higgs boson in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
This Letter presents a search for the production of new heavy resonances decaying into a Higgs boson and a photon using proton-proton collision data at $\sqrt{s}=13$ TeV collected by the ATLAS detector at the LHC. [...]
arXiv:2008.05928 ; CERN-EP-2020-128. - 2020. - 26 p.
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2020-08-14
03:10
Search for new phenomena in final states with large jet multiplicities and missing transverse momentum using $\sqrt{s} = 13~\mathrm{TeV}$ proton-proton collisions recorded by ATLAS at Run-2 of the LHC / ATLAS Collaboration
Results of a search for new particles decaying into eight or more jets and moderate missing transverse momentum are presented. [...]
arXiv:2008.06032 ; CERN-EP-2020-123. - 2020. - 49 p.
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2020-08-14
02:24
Measurement of light-by-light scattering and search for axion-like particles with 2.2 nb$^{-1}$ of Pb+Pb data with the ATLAS detector / ATLAS Collaboration
This paper describes a measurement of light-by-light scattering based on Pb+Pb collision data recorded by the ATLAS experiment during Run 2 of the LHC. [...]
arXiv:2008.05355 ; CERN-EP-2020-135. - 2020. - 44 p.
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2020-08-08
04:34
Measurement of the associated production of a Higgs boson decaying into $b$-quarks with a vector boson at high transverse momentum in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
The associated production of a Higgs boson with a $W$ or $Z$ boson decaying into leptons and where the Higgs boson decays to a $b\bar{b}$ pair is measured in the high vector-boson transverse momentum regime, above 250 GeV, with the ATLAS detector. [...]
arXiv:2008.02508 ; CERN-EP-2020-093. - 2020. - 49 p.
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