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PRODID:-//LBNL Physics Division Research Progress Meetings - ECPv6.8.3//NONSGML v1.0//EN
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X-WR-CALNAME:LBNL Physics Division Research Progress Meetings
X-ORIGINAL-URL:https://rpm.physics.lbl.gov
X-WR-CALDESC:Events for LBNL Physics Division Research Progress Meetings
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TZID:UTC
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TZOFFSETFROM:+0000
TZOFFSETTO:+0000
TZNAME:UTC
DTSTART:20230101T000000
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BEGIN:VEVENT
DTSTART;TZID=UTC:20230406T160000
DTEND;TZID=UTC:20230406T170000
DTSTAMP:20260417T172649
CREATED:20230301T224440Z
LAST-MODIFIED:20230405T165846Z
UID:2204-1680796800-1680800400@rpm.physics.lbl.gov
SUMMARY:NO RPM TODAY-APRIL 6\, 2023
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/speaker-stefania-gori-title-tba/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230413T160000
DTEND;TZID=UTC:20230413T170000
DTSTAMP:20260417T172649
CREATED:20230126T002228Z
LAST-MODIFIED:20230411T165844Z
UID:2136-1681401600-1681405200@rpm.physics.lbl.gov
SUMMARY:Speaker: Dave Moore (Yale)-Title: Optomechanical sensors for nuclear and particle physics
DESCRIPTION:This is an In-Person [HYBRID] Event \nDate: April 13\, 2023 \nLocation: Sessler Conference Room- 50A-5132 \nTime: 4:00- 5:00 pm \nSpeaker: Dave Moore (Yale) \nTitle: Optomechanical sensors for nuclear and particle physics \nAbstract: The development of optomechanical systems has revolutionized the detection of tiny forces over the past few decades. As such technologies reach (and surpass) quantum measurement limits\, they can enable new searches for weakly coupled phenomena\, including dark matter\, gravitational waves\, “fifth’’ forces\, and sterile neutrinos. As a demonstration of these techniques\, I will describe an initial search for dark matter using an optically levitated nanogram mass sensor\, which can exceed the sensitivity of even large underground detectors for certain classes of dark matter candidates in a few days of exposure. If a signal were detected\, such sensors would also be able to correlate its direction with earth’s motion through the galaxy\, allowing definitive confirmation that such a signal arose from dark matter. The same techniques can also permit new laboratory searches for sterile neutrinos\, potentially probing orders-of-magnitude smaller mixings with active neutrinos than previous experiments in the keV-MeV mass range. I will describe recent proposals to perform such searches using optically trapped nanoparticles doped with beta emitters.\n \n\nZoom Information \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-dave-more-yale-title-tba/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230418T160000
DTEND;TZID=UTC:20230418T170000
DTSTAMP:20260417T172649
CREATED:20230417T181605Z
LAST-MODIFIED:20230417T183341Z
UID:2239-1681833600-1681837200@rpm.physics.lbl.gov
SUMMARY:Speaker: Cristiano Sebastiani- Title: "Search for exotic physics with long-lived particles at ATLAS "
DESCRIPTION:This is an In-Person [HYBRID] Event \nDate: April 18\, 2023 \nLocation: INPA Conference Room- 50-5026 \nTime: 4:00- 5:00 pm \nSpeaker: Cristiano Sebastiani \nTitle: Search for exotic physics with long-lived particles at ATLAS\n \nAbstract: Exotic long-lived particles (LLPs) could provide valuable insights into the nature of Dark Matter (DM) and represent a potential extension to the Standard Model (SM) of particle physics. However\, Large Hadron Collider (LHC) search programs may have overlooked LLPs due to their unique features\, which are often dismissed as noise. Decay of LLPs outside of the interaction region gives rise to striking signatures\, such as late calorimetric energy deposits\, displaced vertices\, and long time-of-flight. This presentation focuses on the current status and experimental challenges of searching for LLPs with the ATLAS detector\, with an emphasis on innovative techniques used to improve sensitivity. Lastly\, this presentation will discuss the prospects for the LLP programme at CERN in the future.\n \n\nZoom Information \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/93563368865?pwd=dUVWd1ZWc2ZQenFmdGVuejBEZE03UT09 \nMeeting ID: 935 6336 8865\nPasscode: 157411
URL:https://rpm.physics.lbl.gov/event/speaker-cristiano-sebastiani-title-search-for-exotic-physics-with-long-lived-particles-at-atlas/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230420T160000
DTEND;TZID=UTC:20230420T170000
DTSTAMP:20260417T172649
CREATED:20230417T184233Z
LAST-MODIFIED:20230418T215633Z
UID:2245-1682006400-1682010000@rpm.physics.lbl.gov
SUMMARY:Speaker: Bruce Macintosh Title: Direct imaging of extrasolar planets- Thursday\, April 20 at 4pm
DESCRIPTION:This is an In-Person [HYBRID] Event \nDate: Thursday\, April 20\, 2023 \nLocation: Sessler Conference Room- 50A-5132 \nTime: 4:00- 5:00 pm \nSpeaker: Bruce Macintosh \nTitle: Direct imaging of extrasolar planets\n \nAbstract: Direct detection of extrasolar planets – spatially resolving a planet from its host star while blocking\, moving\, or post-processing the starlight – is a powerful complement to transit\, RV\, and microlensing approaches. Direct detection is sensitive to planets in wider orbit\, and allows spectroscopic characterization of planetary atmosheres. One of the most effective instruments in this regime has been the Gemini Planet Imager (GPI). GPI was a facility instrument combining advanced adaptive optics\, a diffraction-controlling coronagraph\, and an infrared integral field spectrograph on the Gemini South Telescope. From 2014-2019 we carried out the Gemini Planet Imager Exoplanet Survey (GPIES)\, which observed 532 young (10-200 Myr) nearby stars. I will describe the instrument\, summarize the key results of the GPIES program\, including constraints on giant-planet distributions and atmospheric properties. We have also extensively characterized GPI’s performance\, leading to insights into next-generation systems. \nWith current technology\, direct imaging with GPI or other instruments is sensitive primarily to planets that are significantly younger than\, more massive than\, and in wider orbits than Jupiter\, and such planets are rare. Moving beyond this will require new capabilities. The GPI 2.0 project upgrades the existing instrument with faster adaptive optics\, better coronagraph designs\, and new spectrograph modes.When deployed on Gemini North\, GPI 2.0 will be able to search younger stars in the Taurus and Ophiucus star-forming regions\, and be sensitive to Jupiter-like “cold start” planets. I will summarize the science drivers that guided the GPI 2.0 upgrade and the project’s status.\n \n\nZoom Information \nJoin Zoom Meeting \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\nMeeting ID: 988 5432 2464\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-tba-title-tba-thursday-april-20-at-4pm/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230425T160000
DTEND;TZID=UTC:20230425T170000
DTSTAMP:20260417T172649
CREATED:20230425T143459Z
LAST-MODIFIED:20230425T143506Z
UID:2254-1682438400-1682442000@rpm.physics.lbl.gov
SUMMARY:NO RPM TODAY
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/no-rpm-today/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230427T160000
DTEND;TZID=UTC:20230427T170000
DTSTAMP:20260417T172649
CREATED:20230425T160443Z
LAST-MODIFIED:20230425T221525Z
UID:2257-1682611200-1682614800@rpm.physics.lbl.gov
SUMMARY:Speaker: Gabriel Orebi Gann\, (UCB/LBNL)- Title: Let There be Light: next-generation neutrino detection at Theia
DESCRIPTION:This is an In-Person [HYBRID] Event \nLOCATION: Sessler Conference Room – 50A – 5132 \nDATE: April 27\, 2023 \nTIME: 4:00 PM \nTITLE: Let There be Light: next-generation neutrino detection at Theia \nABSTRACT: Neutrinos are some of the most fascinating particles that occur in nature. Over one billion times lighter than the proton\, the neutrino was once thought to be massless and to travel at the speed of light. The Nobel-Prize winning discovery of neutrino oscillations demonstrated that neutrinos have non-zero mass\, which opens up the unique possibility of the neutrino being its own antiparticle\, known as a Majorana fermion. This talk will discuss the physics landscape\, and present recent technological advances that enable a new kind of “hybrid” neutrino experiment\, which would combine two highly successful detection techniques: the topological information of Cherenkov detectors\, with the high light yield of scintillators. The Theia detector would be capable of combining both signals to achieve unprecedented levels of particle and event identification\, offering a rich program of science across high-energy particle\, nuclear and astrophysics. If deployed as one of the “modules of opportunity” at the DUNE far site\, Theia could offer insights into both CP violation\, and the search for Majorana neutrinos: the two ingredients necessary to shed light on the source of the matter antimatter asymmetry in our Universe. \nZOOM INFORMATION – \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-gabriel-orebi-gann-lbnl-title-tba-2/
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