Test beam measurements and computer simulations of the ATLAS ITk R2 silicon strip detector

Arling, Jan-Hendrik; Huth, Lennart; Privara, Radek; Federic, Pavol; Poley, Luise; Kvasnicka, Jiri; Manson, Sebastian; Tuma, Pavel; Speers, Peter; Helling, Cole Michael; Hessey, Nigel; Keller, John Stakely; Kroll, Jiri; He, Yajun; Jessiman, Callan; Jain, Geetika

Preprint

PUBDB-2026-01324

Test beam measurements and computer simulations of the ATLAS ITk R2 silicon strip detector

Arling, J.-H.DESY* ; Federic, P. ; He, Y. ; Helling, C. M. ; Hessey, N. ; Huth, L.DESY* ; Jain, G. ; Jessiman, C. ; Manson, S. ; Poley, L. ; Keller, J. S. ; Kroll, J. ; Kvasnicka, J.Extern* ; Privara, R. (Corresponding author)Extern* ; Speers, P. ; Tuma, P.

2025

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Report No.: arXiv:2506.16053

Abstract: The ATLAS Inner Tracker, the future innermost part of theATLAS detector, is an all-silicon tracker composed of pixel andstrip modules, designed to cope with the extreme conditions expectedduring High-Luminosity LHC runs. Thorough testing of modules duringthe individual phases of their development is critical to ensure therequired performance level of the whole tracker. This documentpresents results obtained from electron beam measurements of theATLAS ITk R2 end-cap strip module. Key performance metrics arepresented and discussed for both perpendicular and angled beamincidence. Computer simulations of the module were performed in theAllpix-Squared framework and the results were compared toexperimental data.

Keyword(s): Performance of High Energy Physics Detectors ; Si microstrip and pad detectors ; Detector modelling and simulations II (electric fields ; charge transport ; multiplication and induction ; pulse formation ; electron emission ; etc) ; Particle tracking detectors