# OpenAccess

 2017-12-1311:38 [PUBDB-2017-13399] Contribution to a conference proceedings/Contribution to a book et al Statistics on High Average Power Operation and Results from the Electron Beam Characterization at PITZ 8th International Particle Accelerator Conference, IPAC2017, Meeting locationCopenhagen, Denmark, 14 May 2017 - 19 May 2017 Geneva : JACoW, TUPIK051 (2017) [10.18429/JACoW-IPAC2017-TUPIK051]   The Photo Injector Test Facility at DESY in Zeuthen (PITZ) develops, tests and characterizes high brightness electron sources for FLASH and European XFEL. Since these FELs work with superconducting accelerators in pulsed mode, also the corresponding normal-conducting RF gun has to operate with long RF pulses. [...] OpenAccess: PDF; 2017-12-1215:53 [PUBDB-2017-13367] Conference Presentation For the HERMES Collaboration Extraction of Helicity Amplitude Ratios from Exclusive $\rho^0$-meson Electroproductionon Transversely Polarized Proton XVII Workshop on High Energy Spin Physics, DSPIN-17, Meeting locationDubna, Russia, 11 Sep 2017 - 15 Sep 2017   OpenAccess: PDF PDF (PDFA); External link: Fulltext 2017-12-1215:51 [PUBDB-2017-13366] Journal Article Behr, J. K. Searches for Exotic Physics in ATLAS using Substructure Techniques Workshop on Discovery Physics at the LHC, Kruger2016, Meeting locationMpumulanga, South Africa, 5 Dec 2016 - 9 Dec 2016   The significant increase of the centre-of-mass energy of the Large Hadron Collider (LHC) from 8 to 13 TeV has allowed the LHC experiments to explore previously inaccessible kinematic regimes in their search for phenomena beyond the Standard Model. The sensitivity of these searches depends crucially on the efficient reconstruction and identification of hadronic decays of highly energetic (boosted) objects, the decay products of which are typically collimated into a single large jet with a characteristic substructure [...] OpenAccess: PDF PDF (PDFA); 2017-12-1215:48 [PUBDB-2017-13365] Conference Presentation (Invited) HERMES Collaboration Overview of HERMES results XVII Workshop on High Energy Spin Physics, DSPIN-17, Meeting locationDubna, Russia, 11 Sep 2017 - 15 Sep 2017   OpenAccess: PDF PDF (PDFA); External link: Fulltext 2017-12-1215:37 [PUBDB-2017-13364] Journal Article/Contribution to a conference proceedings For the HERMES Collaboration Ratios of helicity amplitudes for exclusive $\rho^0$ electroproduction on transversely polarized proton XXIII International Baldin Seminar on High Energy Physics Problems "Relativistic Nuclear Physics and Quantum Chromodynamics", Baldin ISHEPP XXIII, Meeting locationDubna, Russia, 19 Sep 2016 - 24 Sep 2016   Exclusive $\rho^0$-meson electroproduction is studied by the HERMES experiment, using the 27.6 GeV longitudinally polarized electron/positron beam of HERA and a transversely polarized hydrogen target, in the kinematic region 1.0 GeV$^2$ < Q$^2$ < 7.0 GeV$^2$, 3.0 GeV < W < 6.3 GeV, and −t′ < 0.4 GeV$^2$. Using an unbinned maximum-likelihoodmethod, 25 parameters are extracted. [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext 2017-12-1214:47 [PUBDB-2017-13356] Preprint/Report ATLAS Collaboration Search for heavy resonances decaying into $WW$ in the $e\nu\mu\nu$ final state in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector [CERN-EP-2017-214; arXiv:1710.01123]   A search for neutral heavy resonances is performed in the $WW\to e\nu\mu\nu$ decay channel using $pp$ collision data corresponding to an integrated luminosity of 36.1 fb$^{-1}$, collected at a centre-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. No evidence of such heavy resonances is found. [...] OpenAccess: PDF PDF (PDFA); 2017-12-1214:42 [PUBDB-2017-13355] Preprint/Report ATLAS Collaboration Search for doubly charged Higgs boson production in multi-lepton final states with the ATLAS detector using proton-proton collisions at $\sqrt{s}$ = 13 TeV [CERN-EP-2017-198; arXiv:1710.09748]   A search for doubly charged Higgs bosons with pairs of prompt, isolated, highly energetic leptons with the same electric charge is presented. The search uses a proton-proton collision data sample at a centre-of-mass energy of 13 TeV corresponding to 36.1 $\mathrm{fb}^{-1}$ of integrated luminosity recorded in 2015 and 2016 by the ATLAS detector at the LHC. [...] OpenAccess: PDF PDF (PDFA); 2017-12-1214:32 [PUBDB-2017-13353] Preprint/Report ATLAS Collaboration Search for top-squark pair production in final states with one lepton, jets, and missing transverse momentum using 36 fb$^{-1}$ of $\sqrt{s}=13$ TeV pp collision data with the ATLAS detector [CERN-EP-2017-246; arXiv:1711.11520]   The results of a search for the direct pair production of top squarks, the supersymmetric partner of the top quark, in final states with one isolated electron or muon, several energetic jets, and missing transverse momentum are reported. The analysis also targets spin-0 mediator models, where the mediator decays into a pair of dark-matter particles and is produced in association with a pair of top quarks. [...] OpenAccess: PDF PDF (PDFA); 2017-12-1214:30 [PUBDB-2017-13352] Preprint/Report ATLAS Collaboration Measurement of differential cross-sections of a single top quark produced in association with a $W$ boson at $\sqrt{s}=13$ TeV with ATLAS [CERN-EP-2017-221; arXiv:1712.01602]   The differential cross-section for the production of a $W$ boson in association with a top quark is measured for several particle-level observables. The measurements are performed using 36.1 fb$^{-1}$ of $pp$ collision data collected with the ATLAS detector at the LHC in 2015 and 2016. [...] OpenAccess: PDF PDF (PDFA); 2017-12-1214:26 [PUBDB-2017-13350] Preprint/Report ATLAS Collaboration Measurement of the Higgs boson coupling properties in the $H\rightarrow ZZ^{*} \rightarrow 4\ell$ decay channel at $\sqrt{s}$ = 13 TeV with the ATLAS detector [CERN-EP-2017-206; arXiv:1712.02304]   The coupling properties of the Higgs boson are studied in the four-lepton decay channel using 36.1 fb$^{-1}$ of $pp$ collision data from the LHC at a centre-of-mass energy of 13 TeV collected by the ATLAS detector. Cross sections are measured for the four key production modes in several exclusive regions of the Higgs boson production phase space and are interpreted in terms of coupling modifiers. [...] OpenAccess: PDF PDF (PDFA);