Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 18: DAQ / Trigger I
T 18.10: Vortrag
Montag, 19. März 2018, 18:15–18:30, Z6 - SR 2.010
Triplet Track Trigger based on HV-CMOS technology — Adrian Herkert, •Tamasi Kar, André Schöning, and Jike Wang — Physikalisches Institut, Universität Heidelberg, Germany
The High Luminosity upgrade of the LHC (HL-LHC) aims to increase the luminosity of the proton - proton beams to seven times the Run 1 luminosity. In addition to HL-LHC, a future circular collider (FCC-hh) with even higher centre of mass energy (∼100 TeV) and luminosity (∼30 * 1034 cm−2 s−1) is being studied to explore new physics at the high energy and precision frontier. Of the several challenges that will be posed to the detectors in such a radiation dense environment, very high pileup (∼200 for HL-LHC and ∼1000 for FCC-hh) is one of the most critical. It will result in very high data rate and affect the resolution of trigger objects (e.g. jets, Etmiss) tremendously. This demands smart ideas to increase the selectivity and pileup suppression in the trigger at the earliest possible stage. One such idea is that of a triplet track trigger based on HV-CMOS technology.
Recent advancements in HV-CMOS technology have given birth to thin and radiation hard pixel sensors that are cheap and easy to fabricate compared to the traditional hybrid ones, so that large areas can be instrumented. In this talk, the concept of a triplet track trigger using High Voltage Monolithic Active Pixel Sensor (HV-MAPS) will be presented. It comprises three closely spaced HV-MAPS detector layers at a large radius which allows for full readout of all hits in all bunch crossings. This will be followed by simulation results indicating improved track parameter resolution and efficiency.