BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//LBNL Physics Division Research Progress Meetings - ECPv6.8.3//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://rpm.physics.lbl.gov
X-WR-CALDESC:Events for LBNL Physics Division Research Progress Meetings
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
TZNAME:UTC
DTSTART:20260101T000000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=UTC:20260910T160000
DTEND;TZID=UTC:20260910T170000
DTSTAMP:20260903T224136
CREATED:20260903T223211Z
LAST-MODIFIED:20260903T223211Z
UID:3175-1789056000-1789059600@rpm.physics.lbl.gov
SUMMARY:Speaker: Aaron Manalaysay (LBNL) - Title: Who ordered that? An anomalous event in a search for high-energy nuclear recoils in LZ
DESCRIPTION:Research Progress Meeting \nDate: September 10\, 2026 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Aaron Manalaysay (LBNL) \nTitle: Who ordered that? An anomalous event in a search for high-energy nuclear recoils in LZ \nAbstract: The LUX-ZEPLIN experiment (LZ)\, managed by LBL\, employs the world’s most sensitive WIMP dark-matter detector.  Seven tonnes of ultra-pure liquid xenon (LXe) are instrumented to detect scintillation and ionization signals from incoming particles\, along with two veto detectors to tag background signals.  Though typical WIMP searches focus on low-energy interactions of O(1-10 keV)\, there are viable\, generic models in which these low-energy scatters are suppressed\, leaving higher energy O(>=100 keV) recoils as the dominant signal from a WIMP scatter.  Additionally\, background rates are greatly reduced at these high energies compared to at low energies.  Analyzing 220 live days of data\, we observe one event that is consistent with a 250 keV nuclear recoil\, in significant tension with our background models. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-aaron-manalaysay-lbnl-title-who-ordered-that-an-anomalous-event-in-a-search-for-high-energy-nuclear-recoils-in-lz/
LOCATION:ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260917T160000
DTEND;TZID=UTC:20260917T170000
DTSTAMP:20260903T224136
CREATED:20260901T173047Z
LAST-MODIFIED:20260901T173047Z
UID:3165-1789660800-1789664400@rpm.physics.lbl.gov
SUMMARY:Speakers: Simon Knapen and Jens Osterhoff (LBNL) - Title: The physics of high energy plasma wakefield colliders.
DESCRIPTION:Research Progress Meeting \nDate: September 17\, 2026 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Simon Knapen and Jens Osterhoff (LBNL) \nTitle: The physics of high energy plasma wakefield colliders. \nAbstract: We report on a joint Physics–ATAP study on the requirements for future plasma wakefield colliders. A central element of the study is detailed particle-in-cell modeling of the beam–beam interaction\, which characterizes beamstrahlung\, disruption\, pair production\, and the luminosity spectrum under the extreme beam parameters. These results feed directly into progress on detector concepts capable of operating in the resulting backgrounds. We will also summarize the developing physics case that sets the energy and luminosity targets. Because positron acceleration in plasma remains the a severe open problem\, we study e⁻e⁻\, γγ\, and e⁺e⁻ options on equal footing. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speakers-simon-knapen-and-jens-osterhoff-lbnl-title-the-physics-of-high-energy-plasma-wakefield-colliders/
LOCATION:ca
END:VEVENT
END:VCALENDAR