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Journal: PoS: Proceedings of Science

Abbreviation

Pos proc. sci.

Publisher

Sissa Medialab

Journal Volumes

ISSN

1824-8039

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Publications 1 - 10 of 234
  • Knowledge should not be lost! Interview with a volunteer
    Item type: Conference Paper
    Graf, Nicole; Pfister, Thomas (2023)
    PoS: Proceedings of Science ~ Proceedings of Austrian Citizen Science Conference 2022
    Under the catchy slogan "Do you know more?", the ETH Library’s Image Archive has been calling on interested members of the public since the end of 2015 to help identify, describe, and georeference historical images. The image archivist discusses with one volunteer why one should sacrifice one's free time for a crowdsourcing project.
  • FACT - First Energy Spectrum from a SiPM Cherenkov Telescope
    Item type: Conference Paper
    Temme, F.; Ahnen, M.L.; Balbo, M.; et al. (2015)
    PoS: Proceedings of Science
  • Non-perturbative thermal QCD at very high temperatures
    Item type: Conference Paper
    Giusti, Leonardo; Bresciani, Matteo; Dalla Brida, Mattia; et al. (2025)
    PoS: Proceedings of Science ~ Proceedings of 42nd International Conference on High Energy Physics - PoS(ICHEP 2024)
    We present a recently introduced strategy to study non-perturbatively thermal QCD up to temperatures of the order of the electro-weak scale, combining step scaling techniques and shifted boundary conditions. The former allow to renormalize the theory for a range of scales which spans several orders of magnitude with a moderate computational cost. Shifted boundary conditions avoid the need for the zero temperature subtraction in the Equation of State. As a consequence, the simulated lattices do not have to accommodate two very different scales, the pion mass and the temperature. Effective field theory arguments guarantee that finite volume effects can be kept under control safely. As a first application of this strategy, we present the results of the computation of the hadronic screening spectrum in QCD with N$_f$ = 3 flavours of massless quarks for temperatures from T ∼ 1 GeV up to ∼ 160 GeV.
  • Vector Mesons at H1
    Item type: Conference Paper
    Berger, Niklaus (2006)
    PoS: Proceedings of Science
  • Nuclear physics from strong coupling QCD
    Item type: Conference Paper
    Fromm, Michael; de Forcrand, Philippe (2009)
    PoS: Proceedings of Science
  • Colour-kinematics duality, double copy, and homotopy algebras
    Item type: Conference Paper
    Macrelli, Tommaso; Borsten, Leron; Kim, Hyungrok; et al. (2023)
    PoS: Proceedings of Science ~ 41st International Conference on High Energy Physics
    Colour-kinematics duality is a remarkable property of Yang-Mills theory. Its validity implies a relation between gauge theory and gravity scattering amplitudes, known as double copy. Albeit fully established at the tree level, its extension to the loop level is conjectural. Lifting the on-shell, scattering amplitudes-based description to the level of action functionals, we argue that a theory that exhibits tree-level colour-kinematics duality can be reformulated in a way such that its loop integrands manifest a generalised form of colour-kinematics duality. Moreover, we show how the structures of higher homotopy theory naturally describe this off-shell reformulation of colour-kinematics duality.
  • Higgs decays to third-generation fermions at ATLAS and CMS
    Item type: Conference Paper
    Reissel, Christina (2021)
    PoS: Proceedings of Science ~ The Ninth Annual Conference on Large Hadron Collider Physics (LHCP 2021)
    After the successful data-taking periods between 2015 and 2018, an important goal of both collaborations, ATLAS and CMS, is the analysis of the full available dataset which provides perfect conditions for precision measurements in the Higgs sector. These proceedings discuss the most recent analyses by the ATLAS and CMS collaborations in which the Higgs boson decays into a pair of bottom quarks or τ leptons among them analyses which drive the sensitivity in the respective channels such as the ATLAS VH(bb) measurement or the H→ττ¯ CMS results. Moreover, it contains the first differential fiducial Higgs cross section measurement in final states with τ leptons, a result presented by the CMS collaboration at the LHCP2021 conference for the first time.
  • The canonical approach to Finite Density QCD
    Item type: Conference Paper
    Kratochvila, Slavo; Forcrand, Philippe de (2005)
    PoS: Proceedings of Science
  • Recent MAGIC results on Galactic binaries
    Item type: Conference Paper
    MAGIC Collaboration; Molina, Edgar; López-Oramas, Alicia; et al. (2022)
    PoS: Proceedings of Science ~ 37th International Cosmic Ray Conference (ICRC 2021)
    X-ray and gamma-ray binaries are systems consisting of a compact object and normally a non-degenerate companion star. Most of these sources have been shown to emit radiation in a broad frequency range, from radio up to X-rays and sometimes gamma rays. We report on recent results in very high-energy gamma rays above 100 GeV obtained by the MAGIC Collaboration for the Galactic X-ray binaries MAXI J1820+070 and 1A 0535+262, and the gamma-ray binary HESS J0632+057. Multiwavelength data at lower energies are also provided for a better contextualisation of the sources.
  • The T2K ND280 upgrade
    Item type: Conference Paper
    Sgalaberna, Davide (2021)
    PoS: Proceedings of Science ~ 40th International Conference on High Energy Physics
    In view of the J-PARC program of upgrades of the beam intensity, the T2K collaboration is preparing towards an increase of the exposure aimed at reaching sensitivity for leptonic CP violation at 3σ level for a significant fraction of the possible δCP values. To reach this goal, an upgrade of the T2K near detector ND280 will be installed at J-PARC in 2022, with the aim of reducing the combined statistical and systematic uncertainties to better than 4\%. We have developed an innovative concept for this neutrino detection system, comprising the Super-Fine-Grained-Detector (SuperFGD), two High Angle TPC (HA-TPC) and six TOF planes. The SuperFGD, a highly segmented scintillator detector, acting as a fully active target for the neutrino interactions, is a novel device with dimensions of approximately 1.9×1.9×0.6 m3 and a total mass of about 2 ton. It consists of about 2 millions small scintillator cubes each 1 cm3. Each cube is optically isolated. The signal readout from each cube is provided by wavelength shifting fibers inserted through the cubes and connected to micro-pixel avalanche photodiodes MPPCs. The total number of channels will be ∼60,000. We have demonstrated that, by providing three 2D projections, this detector delivers excellent PID, timing, and tracking performance, including a 4π angular acceptance, especially important for short proton and pion tracks. The HA-TPC will be used for 3D track reconstruction, momentum measurement and particle identification. These TPCs, with overall dimensions of 2×2×0.8 m3, will be equipped with 32 resistive Micromegas. The thin field cage (3 cm thickness, 4\% rad. length) will be realized with laminated panels of Aramid and honeycomb covered with a kapton foil with copper strips. The 34×42 cm2 resistive bulk Micromegas will use a 500 kOhm/square DLC foil to spread the charge over the pad plane, each pad being appr. 1 cm2. The front-end cards, based on the AFTER chip, will be mounted on the back of the Micromegas and parallel to its plane. The time-of-flight (TOF) detector will allow to reject events generated in the passive areas of the detector and improve particle identification. The TOF will consist of 6 planes with about 5 m2 surface area surrounding the SuperFGD and the TPCs. Each plane will be assembled with 2.2 m long cast plastic scintillator bars with light collected by arrays of large-area MPPCs from two ends. The time resolution at the bar centre is 150 ps. A report on the design of these detectors, their performance, the results of the test beam and the plan for the construction is provided.
Publications 1 - 10 of 234