FCC-ee interaction region backgrounds
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Accepted author manuscript, 1.23 MB, PDF document
The FCC-ee machine induced backgrounds on the two proposed detectors (CLD and IDEA) have been studied in detail. Synchrotron Radiation (SR) considerations dictate the Interaction Region (IR) optimization. An asymmetric IR design limits the final bend critical energy to 100 keV. Masks placed before the final focus quadrupole protect the detector from direct hits, and a shield placed around the beam pipe from secondary particles, keeping the effect of SR on the detector to negligible levels. The most important source of background is expected to be the Incoherent Pair Creation (IPC). Its effect has been studied in full simulation and reconstruction, and it was shown that it will not pose a problem for the detector, even if conservative estimations for the time resolution of the detector sensors are assumed. Moreover, the gamma gamma -> hadrons, radiative Bhabhas and beam-gas interaction induced backgrounds were studied. All were found to have small to negligible effect on the detector. Overall, the FCC-ee interaction region backgrounds are not expected to compromise the detector performance.
Original language | English |
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Article number | 2041009 |
Journal | International Journal of Modern Physics A |
Volume | 35 |
Issue number | 15-16 |
Number of pages | 7 |
ISSN | 0217-751X |
DOIs | |
Publication status | Published - 10 Jun 2020 |
Event | 5th Annual Meeting on High Energy Phisics - Hong Kong, Hong Kong Duration: 7 Jan 2019 → 25 Jan 2019 |
Conference
Conference | 5th Annual Meeting on High Energy Phisics |
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Country | Hong Kong |
City | Hong Kong |
Period | 07/01/2019 → 25/01/2019 |
- FCC-ee, machine detector interface, backgrounds
Research areas
ID: 247160140