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ATLAS Preprints

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2020-10-14
11:50
Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\mp$ or $ZZ$ in fully hadronic final states from $\sqrt{s}=13$ TeV $pp$ collisions recorded with the ATLAS detector / ATLAS Collaboration
Several extensions of the Standard Model predict the production of dark matter particles at the LHC. [...]
arXiv:2010.06548 ; CERN-EP-2020-172. - 2020. - 32 p.
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2020-10-07
09:01
Observation of photon-induced $W^+W^-$ production in $pp$ collisions at $\sqrt{s}=13$ TeV using the ATLAS detector / ATLAS Collaboration
This letter reports the observation of photon-induced production of $W$-boson pairs, $\gamma\gamma\rightarrow WW$ [...]
arXiv:2010.04019 ; CERN-EP-2020-165. - 2020. - 41 p.
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2020-10-06
09:44
Charged-lepton-flavour violation at the LHC: a search for $Z\to e\tau/\mu\tau$ decays with the ATLAS detector / ATLAS Collaboration
In the Standard Model of particle physics, leptons are key building blocks of matter and come in three families (flavours) [...]
arXiv:2010.02566 ; CERN-EP-2020-163. - 2020. - 36 p.
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2020-10-06
09:20
Search for pair production of scalar leptoquarks decaying into first- or second-generation leptons and top quarks in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for pair production of scalar leptoquarks, each decaying into either an electron or a muon and a top quark, is presented. [...]
arXiv:2010.02098 ; CERN-EP-2020-160. - 2020. - 41 p.
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2020-10-02
15:16
Search for phenomena beyond the Standard Model in events with large $b$-jet multiplicity using the ATLAS detector at the LHC / ATLAS Collaboration
A search is presented for new phenomena in events characterised by high jet multiplicity, no leptons (electrons or muons), and four or more jets originating from the fragmentation of $b$-quarks ($b$-jets). [...]
arXiv:2010.01015 ; CERN-EP-2020-147. - 2020. - 40 p.
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2020-10-01
10:24
Search for heavy resonances decaying into a pair of $Z$ bosons in the $\ell^+\ell^-\ell'^+\ell'^-$ and $\ell^+\ell^-\nu\bar\nu$ final states using 139 fb$^{-1}$ of proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for heavy resonances decaying into a pair of $Z$ bosons leading to $\ell^+\ell^-\ell'^+\ell'^-$ and $\ell^+\ell^-\nu\bar\nu$ final states, where $\ell$ stands for either an electron or a muon, is presented. [...]
arXiv:2009.14791 ; CERN-EP-2020-153. - 2020. - 53 p.
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2020-09-29
20:34
Observation and measurement of forward proton scattering in association with lepton pairs produced via the photon fusion mechanism at ATLAS / ATLAS Collaboration
The observation of forward proton scattering in association with lepton pairs ($e^+e^-+p$ or $\mu^+\mu^-+p$) produced via photon fusion is presented. [...]
arXiv:2009.14537 ; CERN-EP-2020-167. - 2020. - 31 p.
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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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