# Publications database

 2018-02-1414:53 [PUBDB-2018-01181] Contribution to a conference proceedings Spiering, C. IceCube: Astrophysics results 17th International Workshop on Neutrino Telescopes, Meeting locationVenezia, Italy, 13 Mar 2017 - 17 Mar 2017 307, PoS(NEUTEL2017)059 (2017) 2018-02-1414:46 [PUBDB-2018-01180] Report/Contribution to a conference proceedings Spiering, C. High-Energy Neutrino Astronomy: where do we stand, where do we go? [arXiv:1711.08266] 50 years Baksan Laboratory, Meeting locationBaksan, Russia, 22 Nov 2017 - 22 Nov 2017 20 pp. (2017) [10.3204/PUBDB-2018-01180]   With the identification of a diffuse flux of astrophysical ('cosmic') neutrinos in the TeV-PeV energy range, IceCube has opened a new window to the Universe. However, the corresponding cosmic landscape is still uncharted: so far, the observed flux does not show any clear association with known source classes. [...] OpenAccess: PDF PDF (PDFA); 2018-02-1314:50 [PUBDB-2018-01172] Dissertation / PhD Thesis Tackmann, K. Measurement of the fiducial differential Higgs cross-section with respect to pT using thediphoton decay channel atps = 8TeV with ATLAS 191 pp. (2018) [10.3204/PUBDB-2018-01172] = Dissertation, University of Hamburg, 2017   AbstractThis thesis presents a measurement of the fiducial differential cross-section with respect to pT of Higgs boson production, using the diphoton decay channel. Theanalysis uses 20:3 fb-1 of proton-proton collision data at a centre-of-mass energy of 8TeV taken with the ATLAS detector in the year 2012. [...] OpenAccess: PDF; 2018-02-1310:22 [PUBDB-2018-01168] Journal Article Pikelner, A. FMFT: fully massive four-loop tadpoles Computer physics communications 224, 282 - 287 (2018) [10.1016/j.cpc.2017.11.017] 2018-02-1216:43 [PUBDB-2018-01167] Journal Article et al Pion vector form factor from lattice QCD at the physical point Physical review / D 97(1), 014508 (2018) [10.1103/PhysRevD.97.014508]   We present an investigation of the electromagnetic pion form factor, $F_{\pi}(Q^2)$, at small values of the four-momentum transfer $Q^2 (\lesssim 0.25$ $GeV^2$), based on the gauge configurations generated by the European Twisted Mass Collaboration with $N_f = 2$ twisted-mass quarks at maximal twist including a clover term. Momentum is injected using nonperiodic boundary conditions and the calculations are carried out at a fixed lattice spacing $(a \simeq 0.09 fm)$ and with pion masses equal to its physical value, 240 MeV and 340 MeV. [...] OpenAccess: PDF PDF (PDFA); 2018-02-1216:37 [PUBDB-2018-01166] Journal Article Orlando, D. Conformal Dimensions via Large Charge Expansion Physical review letters 120(6), 061603 (2018) [10.1103/PhysRevLett.120.061603]   We construct an efficient Monte Carlo algorithm that overcomes the severe signal-to-noise ratio problems and helps us to accurately compute the conformal dimensions of large-$Q$ fields at the Wilson-Fisher fixed point in the $O$(2) universality class. Using it, we verify a recent proposal that conformal dimensions of strongly coupled conformal field theories with a global $U$(1) charge can be obtained via a series expansion in the inverse charge 1/$Q$. [...] OpenAccess: PDF PDF (PDFA); 2018-02-1216:14 [PUBDB-2018-01165] Journal Article Maurin, D. Extragalactic diffuse γ-rays from dark matter annihilation: revised prediction and full modelling uncertainties Journal of cosmology and astroparticle physics 2018(02), 005 - 005 (2018) [10.1088/1475-7516/2018/02/005]   Recent high-energy data from $Fermi$-LAT on the diffuse $\gamma$-ray background have been used to set among the best constraints on annihilating TeV cold dark matter candidates. In order to assess the robustness of these limits, we revisit and update the calculation of the isotropic extragalactic $\gamma$-ray intensity from dark matter annihilation. [...] Published on 2018-02-06. Available in OpenAccess from 2019-02-06.: PDF PDF (PDFA); Restricted: PDF PDF (PDFA); 2018-02-1216:05 [PUBDB-2018-01164] Report/Journal Article et al Computing the nucleon charge and axial radii directly at $Q^2=0$ in lattice QCD [arXiv:1711.11385; DESY-17-203] Physical review / D 97(3), 034504 (2018) [10.1103/PhysRevD.97.034504]   We describe a procedure for extracting momentum derivatives of nucleon matrix elements on the lattice directly at $Q^2=0$. This is based on the Rome method for computing momentum derivatives of quark propagators. [...] OpenAccess: PDF PDF (PDFA); 2018-02-1208:27 [PUBDB-2018-01147] Report ATLAS Collaboration Electron and photon reconstruction and performance in ATLAS using a dynamical, topological cell clustering-based approach [ATL-PHYS-PUB-2017-022] 35 pp. (2017) [10.3204/PUBDB-2018-01147]   This note presents the reconstruction of electrons and photons in ATLAS using a dynamic,topological cell clustering-based approach. This new technique allows for improved meas-urements of electron and photon energies, particularly in situations where an electron radiatesa bremsstrahlung photon, or a photon converts to an electron-positron pair. [...] OpenAccess: PDF; 2018-02-0816:31 [PUBDB-2018-01142] Report/Journal Article Saldin, E. On Radiation Emission from a Microbunched Beam with Wavefront Tilt and its Experimental Observation [DESY-17-093; arXiv:1706.10185] Optics communications 410, 180-186 (2018) [10.1016/j.optcom.2017.10.010]   In this paper we compare experimental observations and theory of radiation emission from a microbunched beam with microbunching wavefront tilt with respect to the direction of motion. The theory refers to the work [1], which predicts, in this case, exponential suppression of coherent radiation along the kicked direction. [...] Restricted: PDF PDF (PDFA);