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DTSTART;TZID=UTC:20210105T160000
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DTSTAMP:20260422T052424
CREATED:20201216T214259Z
LAST-MODIFIED:20210104T165735Z
UID:1560-1609862400-1609866000@rpm.physics.lbl.gov
SUMMARY:Xinran Li (Princeton University)    "The energy resolution and the energy deposition processes in noble liquid dark matter detectors"
DESCRIPTION:Abstract: \n\nNoble liquid detectors\, especially liquid argon and liquid xenon time projection chambers (TPCs) have been developed and improved during the last decades. They produced the best limits in the search for one of the best motivated dark matter candidates\, weakly interacting massive particles (WIPMs)\, in the O(10)GeV to O(10)TeV mass region. I’ll first talk about the DarkSide-50 low mass analysis which produced the best limit of 5$\times$10^{-42} cm^2 on spin-independent dark matter nuclear scattering cross section for dark matter masses around 3 GeV. The detector energy resolution around the analysis threshold strongly affects the shape of the limit curve in the low mass region. One main contribution to the energy resolution comes from the intrinsic fluctuations during the energy deposition processes\, including the quenching processes and the charge recombination\, in noble liquids. Extending to different materials\, I’ll also mention the scintillation in xenon doped liquid argon\, and the recombination in amorphous selenium. The energy resolution can be improved with sensitivity to the quenched heat energy. Superfluid helium 4 detectors have been proposed to probe nuclear recoil dark matter masses as low as O(10)MeV with current technology. The compatibility with phonon sensors permits sensitivity to all energy deposition channels in superfluid helium.\n  \n\nhttp://physics.lbl.gov/rpm/index.php/events/ \nIf you are looking to confirm if there is an event\, due to room reservation\, please go to RPM website for a list of all scheduled talks. \n──────────\nTroy Cortez is inviting you to a scheduled Zoom meeting. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/92548118001 \nMeeting ID: 925 4811 8001\nOne tap mobile\n+16699006833\,\,92548118001# US (San Jose)\n+13462487799\,\,92548118001# US (Houston) \nDial by your location\n+1 669 900 6833 US (San Jose)\n+1 346 248 7799 US (Houston)\n+1 253 215 8782 US (Tacoma)\n+1 301 715 8592 US (Washington D.C)\n+1 312 626 6799 US (Chicago)\n+1 646 558 8656 US (New York)\nMeeting ID: 925 4811 8001\nFind your local number: https://lbnl.zoom.us/u/aebrpK1L6a \nJoin by SIP\n92548118001@zoomcrc.com \nJoin by H.323\n162.255.37.11 (US West)\n162.255.36.11 (US East)\n115.114.131.7 (India Mumbai)\n115.114.115.7 (India Hyderabad)\n213.19.144.110 (Amsterdam Netherlands)\n213.244.140.110 (Germany)\n103.122.166.55 (Australia)\n64.211.144.160 (Brazil)\n69.174.57.160 (Canada)\n207.226.132.110 (Japan)\nMeeting ID: 925 4811 8001 \n──────────
URL:https://rpm.physics.lbl.gov/event/xinran-li-princeton-the-energy-resolution-and-the-energy-deposition-processes-in-noble-liquid-dark-matter-detectors/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
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