DPG-Frühjahrstagung 2019


Testbeam Characterization of the ATLASpix - Simple Pixel Sensor Prototype in View of the Requirements for the CLIC Tracking Detector

  • Speaker: Jens Kröger
  • Status: Accepted
  • Abstract: The ATLASpix_Simple is a Monolithic Active Pixel Sensor prototype produced in a commercial 180nm HV-CMOS process. It contains a self-triggered 25 x 400 pixel array with a pixel size of 130um x 40um. The chip features tunable in-pixel comparators and a digital periphery allowing for on-chip hit digitization. In order to characterize the chip and investigate its performance with respect to efficiency, timing and spatial resolution, testbeam campaigns are carried out in which the prototype is placed in a beam telescope consisting of multiple layers of pixel sensors. The beam telescope provides reference tracks to which the hits on the device-under-test can be compared with a high spatial and time resolution. This talk will introduce the ATLASpix sensor prototype. Furthermore, results from the testbeam performed with the CLICdp Timepix3 Beam Telescope at the H6 beamline of the SPS in November 2018 will be presented in view of the requirements of the CLIC tracking detector.
  • Slides

Double Higgs boson production and Higgs self-coupling at CLIC

  • Speaker: Ulrike Schnoor
  • Status: Accepted
  • Abstract: The trilinear Higgs self-coupling has a central role in the understanding of electroweak symmetry breaking as it determines the shape of the Higgs potential. Its investigation is a crucial component of physics at future colliders. CLIC, the Compact Linear Collider, is a high-energy electron-positron accelerator being studied as an option for the post-LHC era. Its high-energy stages at √s=1.5 and 3 TeV give direct access to Higgs boson pair production, from which the Higgs self-coupling can be extracted. This talk covers the full-simulation analysis of the expected sensitivity of the high-energy stages of CLIC to double Higgs production. The cross-section measurement of double Higgsstrahlung and differential observables in W-fusion Higgs-pair production are combined to give the expected sensitivity of CLIC to the trilinear Higgs self-coupling.
  • Slides
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PDFpdf 2019-03-26_DPG-Aachen_JensKroeger_final.pdf r1 manage 12538.8 K 2019-03-29 - 15:10 EricaBrondolin  
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