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ATLAS Preprints

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2020-01-20
16:32
Measurement of the $CP$-violating phase $\phi_s$ in $B^0_s \to J/\psi\phi$ decays in ATLAS at 13 TeV / ATLAS Collaboration
A measurement of the $B^0_s \to J/\psi\phi$ decay parameters using 80.5 fb$^{-1}$ of integrated luminosity collected with the ATLAS detector from 13 TeV proton-proton collisions at the LHC is presented. [...]
arXiv:2001.07115 ; CERN-EP-2019-218. - 2020. - 44 p.
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2020-01-14
18:06
Search for the $HH \rightarrow b \bar{b} b \bar{b}$ process via vector-boson fusion production using proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for Higgs boson pair production via vector-boson fusion (VBF) in the $b\bar{b}b\bar{b}$ final state is carried out with the ATLAS experiment, using 126 fb$^{-1}$ of proton-proton collision data delivered at $\sqrt{s} = 13$ TeV by the Large Hadron Collider. [...]
arXiv:2001.05178 ; CERN-EP-2019-267. - 2020. - 37 p.
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2020-01-13
17:05
Searches for New Physics with Unconventional Signatures at ATLAS and CMS / Pedro, Kevin (Fermilab)
Selected results from searches for new physics with unconventional signatures using the ATLAS and CMS detectors are presented. [...]
arXiv:1912.04180 ; CMS CR-2019/036. - 34 p.
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2020-01-13
17:04
Longitudinal flow decorrelations in Xe+Xe collisions at $\sqrt{s_{\mathrm{NN}}}=5.44$ TeV with the ATLAS detector / ATLAS Collaboration
The first measurement of longitudinal decorrelations of harmonic flow amplitudes $v_n$ for $n=2$, 3 and 4 in Xe+Xe collisions at $\sqrt{s_{\mathrm{NN}}}=5.44$ TeV is obtained using 3 ${\mu}\textrm{b}^{-1}$ of data with the ATLAS detector at the LHC. [...]
arXiv:2001.04201 ; CERN-EP-2019-275. - 2020. - 29 p.
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2019-12-21
04:14
High-precision limits on $W$-$W'$ and $Z$-$Z'$ mixing from diboson production using the full LHC Run 2 ATLAS data set / Pankov, A.A. (Gomel State Tech. U., ICTP ; Minsk, Inst. Nucl. Problems ; Dubna, JINR) ; Osland, P. (Bergen U.) ; Serenkova, I.A. (Gomel State Tech. U., ICTP) ; Bednyakov, V.A. (Dubna, JINR)
The full ATLAS Run 2 data set with time-integrated luminosity of 139 fb$^{-1}$ in the diboson channels in hadronic final states is used to probe a simple model with an extended gauge sector (EGM), proposed by Altarelli et al., and often taken as a convenient benchmark by experimentalists. [...]
arXiv:1912.02106. - 20 p.
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2019-12-20
16:11
Measurement of isolated-photon plus two-jet production in $pp$ collisions at $\sqrt s=13$ TeV with the ATLAS detector / ATLAS Collaboration
The dynamics of isolated-photon plus two-jet production in $pp$ collisions at a centre-of-mass energy of 13 TeV are studied with the ATLAS detector at the LHC using a dataset corresponding to an integrated luminosity of 36.1 fb$^{-1}$. [...]
arXiv:1912.09866 ; CERN-EP-2019-210. - 2019. - 48 p.
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2019-12-20
15:32
A measurement of soft-drop jet observables in $pp$ collisions with the ATLAS detector at $\sqrt{s} = 13$ TeV / ATLAS Collaboration
Jet substructure quantities are measured using jets groomed with the soft-drop grooming procedure in dijet events from 32.9 fb$^{-1}$ of $pp$ collisions collected with the ATLAS detector at $\sqrt{s} = 13$ TeV. [...]
arXiv:1912.09837 ; CERN-EP-2019-269. - 2019. - 52 p.
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2019-12-18
16:39
Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in $\sqrt{s}$ = 13 TeV $pp$ collisions with the ATLAS detector / ATLAS Collaboration
A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell $W$ and $Z$ bosons is presented for a three-lepton final state. [...]
arXiv:1912.08479 ; CERN-EP-2019-263. - 2019. - 44 p.
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2019-12-05
22:00
Measurement of the transverse momentum distribution of Drell-Yan lepton pairs in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
This paper describes precision measurements of the transverse momentum $p_\mathrm{T}^{\ell\ell}$ ($\ell=e,\mu$) and of the angular variable $\phi^{*}_{\eta}$ distributions of Drell-Yan lepton pairs in a mass range of 66-116 GeV. [...]
arXiv:1912.02844 ; CERN-EP-2019-223. - 2019. - 39 p.
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2019-12-05
18:28
Measurement of the relative $B^{\pm}_{c}/B^{\pm}$ production cross section with the ATLAS detector at $\sqrt{s}=8$ TeV / ATLAS Collaboration
The total cross section and differential cross sections for the production of $B_{c}^{\pm}$ mesons, times their branching fraction to $J/\psi \pi^{\pm}$, are measured relative to those for the production of $B^{\pm}$ mesons, times their branching fraction to $J/\psi K^{\pm}$. [...]
arXiv:1912.02672 ; CERN-EP-2019-194. - 2019. - 39 p.
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