# Preprints

 2017-12-0517:01 [PUBDB-2017-12770] Preprint/Report et al Enabling rootless Linux Containers in multi-user environments: the udocker tool [DESY-17-096] Containers are increasingly used as means to distribute and run Linux services and applications. In this paper we describe the architectural design and implementation of udocker a tool to execute Linux containers in user mode and we describe a few practical applications for a range of scientific codes meeting different requirements: from single core execution to MPI parallel execution and execution on GPGPUs.. 2017-12-0516:58 [PUBDB-2017-12768] Preprint/Report et al Reconciling EFT and hybrid calculations of the light MSSM Higgs-boson mass [DESY-17-072] Various methods are used in the literature for predicting the lightest CP-even Higgs boson mass in the Minimal Supersymmetric Standard Model (MSSM). Fixed-order diagrammatic calculations capture all effects at a given order and yield accurate results for scales of supersymmetric (SUSY) particles that are not separated too much from the weak scale. [...] 2017-11-3016:41 [PUBDB-2017-12636] Preprint/Report ATLAS Collaboration Analysis of the $Wtb$ vertex from the measurement of triple-differential angular decay rates of single top quarks produced in the $t$-channel at $\sqrt{s}$ = 8 TeV with the ATLAS detector [CERN-EP-2017-089; arXiv:1707.05393 ]   The electroweak production and subsequent decay of single top quarks in the $t$-channel is determined by the properties of the $Wtb$ vertex, which can be described by the complex parameters of an effective Lagrangian. An analysis of a triple-differential decay rate in $t$-channel production is used to simultaneously determine five generalised helicity fractions and phases, as well as the polarisation of the produced top quark. [...] OpenAccess: PDF PDF (PDFA); 2017-11-3016:35 [PUBDB-2017-12633] Preprint/Report et al Search for heavy resonances decaying to a $W$ or $Z$ boson and a Higgs boson in the $q\bar{q}^{(')}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector [CERN-EP-2017-111; arXiv:1707.06958 ] Amsterdam : North-Holland Publ., (2017) [10.3204/PUBDB-2017-12633]   A search for heavy resonances decaying to a $W$ or $Z$ boson and a Higgs boson in the $q\bar{q}^{(\prime)}b\bar{b}$ final state is described. The search uses 36.1 fb$^{-1}$ of proton-proton collision data at $\sqrt{s} =$ 13 TeV collected by the ATLAS detector at the CERN Large Hadron Collider in 2015 and 2016. [...] OpenAccess: PDF PDF (PDFA); 2017-11-3016:12 [PUBDB-2017-12630] Preprint/Report ATLAS Collaboration Measurements of top-quark pair differential cross-sections in the lepton+jets channel in $pp$ collisions at $\sqrt{s}$ = 13 TeV using the ATLAS detector [CERN-EP-2017-058; arXiv:1708.00727 ]   Measurements of differential cross-sections of top-quark pair production in fiducial phase-spaces are presented as a function of top-quark and $t\bar{t}$ system kinematic observables in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$=13 TeV. The data set corresponds to an integrated luminosity of $3.2$ fb${}^{-1}$, recorded in 2015 with the ATLAS detector at the CERN Large Hadron Collider. [...] OpenAccess: PDF PDF (PDFA); 2017-11-3016:08 [PUBDB-2017-12629] Preprint/Report ATLAS Collaboration Search for new phenomena with large jet multiplicities and missing transverse momentum using large-radius jets and flavour-tagging at ATLAS in 13 TeV $pp$ collisions [CERN-EP-2017-138; arXiv:1708.02794]   A search is presented for particles that decay producing a large jet multiplicity and invisible particles. The event selection applies a veto on the presence of isolated electrons or muons and additional requirements on the number of b-tagged jets and the scalar sum of masses of large-radius jets. [...] OpenAccess: PDF PDF (PDFA); 2017-11-3016:06 [PUBDB-2017-12628] Preprint/Report ATLAS Collaboration Search for direct top squark pair production in final states with two leptons in $\sqrt{s} = 13$ TeV $pp$ collisions with the ATLAS detector [CERN-EP-2017-150; arXiv:1708.03247 ]   The results of a search for direct pair production of top squarks in events with two opposite-charge leptons (electrons or muons) are reported, using 36.1 fb$^{-1}$ of integrated luminosity from proton--proton collisions at $\sqrt{s}=13$ TeV collected by the ATLAS detector at the Large Hadron Collider. To cover a range of mass differences between the top squark $\tilde{t}$ and lighter supersymmetric particles, four possible decay modes of the top squark are targeted with dedicated selections: the decay $\tilde{t} \rightarrow b \tilde{\chi}_{1}^{\pm}$ into a $b$-quark and the lightest chargino with $\tilde{\chi}_{1}^{\pm} \rightarrow W \tilde{\chi}_{1}^{0}$, the decay $\tilde{t} \rightarrow t \tilde{\chi}_{1}^{0}$ into an on-shell top quark and the lightest neutralino, the three-body decay $\tilde{t} \rightarrow b W \tilde{\chi}_{1}^{0}$ and the four-body decay $\tilde{t} \rightarrow b \ell \nu \tilde{\chi}_{1}^{0}$. [...] OpenAccess: PDF PDF (PDFA); 2017-11-3016:03 [PUBDB-2017-12625] Preprint/Report ATLAS Collaboration Evidence for the $H \to b\bar{b}$ decay with the ATLAS detector [CERN-EP-2017-175; arXiv:1708.03299 ]   A search for the decay of the Standard Model Higgs boson into a $b\bar{b}$ pair when produced in association with a $W$ or $Z$ boson is performed with the ATLAS detector. The analysed data, corresponding to an integrated luminosity of 36.1 fb$^{-1}$, were collected in proton-proton collisions in Run 2 of the Large Hadron Collider at a centre-of-mass energy of 13 TeV. [...] OpenAccess: PDF PDF (PDFA); 2017-11-3016:00 [PUBDB-2017-12624] Preprint/Report ATLAS Collaboration Measurement of multi-particle azimuthal correlations with the subevent cumulant method in $pp$ and $p$+Pb collisions with the ATLAS detector at the LHC [CERN-EP-2017-160; arXiv:1708.03559 ]   A detailed study of multi-particle azimuthal correlations is presented using $pp$ data at $\sqrt{s}=5.02$ and 13 TeV, and $p$+Pb data at $\sqrt{s_{\rm{NN}}}=5.02$ TeV, recorded with the ATLAS detector at the LHC. The azimuthal correlations are probed using four-particle cumulants $c_{n}\{4\}$ and flow coefficients $v_n\{4\}=(-c_{n}\{4\})^{1/4}$ for $n=2$ and 3, with the goal of extracting long-range multi-particle azimuthal correlation signals and suppressing the short-range correlations. [...] OpenAccess: PDF PDF (PDFA); 2017-11-3015:57 [PUBDB-2017-12623] Preprint/Report ATLAS Collaboration Measurement of the exclusive $\gamma \gamma \rightarrow \mu^+ \mu^-$ process in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector [CERN-EP-2017-151; arXiv:1708.04053 ]   The production of exclusive $\gamma \gamma \rightarrow \mu^+ \mu^-$ events in proton--proton collisions at a centre-of-mass energy of 13 TeV is measured with the ATLAS detector at the LHC, using data corresponding to an integrated luminosity of 3.2 fb$^{-1}$. The measurement is performed for a dimuon invariant mass of 12 GeV m$_{\mu^+\mu^-}<$ 70 GeV. [...] OpenAccess: PDF PDF (PDFA);