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DTSTART;TZID=America/Los_Angeles:20241004T120000
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DTSTAMP:20260425T191251
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UID:1824-1728043200-1728046800@inpa.lbl.gov
SUMMARY:INPA SEMINAR SPEAKER: Max Smiley (UC Berkeley)-Title: Shining Lights: 8B Solar Neutrino Flux Measurement with SNO+ and R&D for Next-Generation Optical Neutrino Experiments
DESCRIPTION:INPA SEMINAR TALK \nDate: October 4\, 2024 \nTime: 12:00 pm – 1:00 pm \nLocation: Sessler Conference Room – 50A-5132 [Hybrid and In-Person] \nSpeaker: Max Smiley (UC Berkeley) \nTitle: Shining Lights: 8B Solar Neutrino Flux Measurement with SNO+ and R&D for Next-Generation Optical Neutrino Experiments \nAbstract: Neutrino detection has been a crucial contributor to our understanding of physics for over half a century\, with optical photon-based technology playing a prominent role. Large-scale\, liquid-phase\, unsegmented photon-based detectors continue to shed light on a broad array of physics\, probing sources from the Sun to nuclear reactors\, and from man-made neutrino beams to atmospheric interactions. In this talk\, I discuss work with one such detector\, SNO+\, and in particular efforts to measure the ${}^8$B solar neutrino flux during its scintillator phase. The resulting measurement of $[5.74_{-0.77}^{+0.84}\text{(stat.)}] \times 10^{6}~\text{cm}^{-2}~\text{s}^{-1}$ gives confidence in the understanding of SNO+’s operations in this period and adds to the family of measurements made of this flux around the community. Additionally\, for the past several years\, much effort has been directed toward the development of a new paradigm known as “hybrid” detection\, which aims to benefit from the two optical light emission mechanisms\, Cherenkov radiation and scintillation\, currently drawn on separately in today’s experiments. In the second part of this talk\, I discuss explorations into the physics potential for neutrinoless double beta decay and CNO solar neutrino flux measurement at large-scales of this technology\, as well as an examination of particle identification capability of the novel scintillating medium water-based liquid scintillator\, a candidate hybrid detector material. These explorations provide a confirmation of the possibilities for hybrid detection and help pave the way for concrete realizations of these technologies at larger scales.\n \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95016696011?pwd=Tk1XOW1Xd3RYRnlsc2tEYmRWZlVVZz09 \nMeeting ID: 950 1669 6011\n\nPasscode: 247722
URL:https://inpa.lbl.gov/event/inpa-seminar-speaker-max-smiley-uc-berkeley-title-shining-lights-8b-solar-neutrino-flux-measurement-with-sno-and-rd-for-next-generation-optical-neutrino-experiments/
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DTSTART;TZID=America/Los_Angeles:20241011T120000
DTEND;TZID=America/Los_Angeles:20241011T130000
DTSTAMP:20260425T191251
CREATED:20241007T165321Z
LAST-MODIFIED:20241007T165321Z
UID:1839-1728648000-1728651600@inpa.lbl.gov
SUMMARY:NO INPA SEMINAR
DESCRIPTION:
URL:https://inpa.lbl.gov/event/no-inpa-seminar-20/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20241018T120000
DTEND;TZID=America/Los_Angeles:20241018T130000
DTSTAMP:20260425T191251
CREATED:20241007T165519Z
LAST-MODIFIED:20241007T165519Z
UID:1843-1729252800-1729256400@inpa.lbl.gov
SUMMARY:NO INPA SEMINAR
DESCRIPTION:
URL:https://inpa.lbl.gov/event/no-inpa-seminar-21/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20241025T120000
DTEND;TZID=America/Los_Angeles:20241025T130000
DTSTAMP:20260425T191251
CREATED:20241022T205612Z
LAST-MODIFIED:20241022T211547Z
UID:1846-1729857600-1729861200@inpa.lbl.gov
SUMMARY:INPA Seminar Speaker: Greg Green ( MPIA)- Title:  Milky Way Dust and Dynamics
DESCRIPTION:INPA SEMINAR TALK \nDate: October 25\, 2024 \nTime: 12:00 pm – 1:00 pm \nLocation: Sessler Conference Room – 50A-5132 [Hybrid and In-Person] \nSpeaker: Greg Green ( MPIA) \nTitle:  Milky Way Dust and Dynamics \nAbstract: The gravitational potential of the Milky Way is generated by all of the matter both baryonic and dark. By mapping the potential\, we can thus uncover the distribution of the unseen dark component of the Milky Way. Gaia has precisely measured 6D phase-space coordinates of over 30 million stars\, dramatically expanding our knowledge of stellar kinematics in the Milky Way. Previous methods of recovering the gravitational potential from stellar kinematics have made use of highly simplified models\, but the quality of the new phase-space data provided by Gaia demands new approaches that can more fully describe the richness of the data. I will discuss a new method\, “Deep Potential\,” which applies computational tools from Deep Learning in a physically principled way to solve the collisionless Boltzmann equation and recover the underlying gravitational potential. \nAny work on the Milky Way inevitably runs into the problem of dust\nextinction\, and the recovery of the gravitational potential is no\nexception. Despite the vital importance of interstellar dust to many\nareas of astronomy\, its composition remains highly uncertain. However\,\nlow-resolution spectroscopy from Gaia is enabling a transformation of\nour understanding of dust properties. The dust extinction curve\,\ntypically characterized by R(V)\, depends on both the composition and\nsize distribution of dust grains. I will discuss the first all-sky 3D\nmap of dust R(V)\, based on 130 million stellar measurements. This map\nnot only allows more accurate extinction corrections\, but also sheds\nlight on the chemical evolution of the interstellar medium. \nBoth of these areas of Milky Way research borrow tools from Deep\nLearning – applied in physically motivated ways – and make extensive use\nof Gaia data. I will discuss some lessons on the use of such tools\, in\nand beyond Milky Way research.\n \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95016696011?pwd=Tk1XOW1Xd3RYRnlsc2tEYmRWZlVVZz09 \nMeeting ID: 950 1669 6011\n\nPasscode: 247722
URL:https://inpa.lbl.gov/event/inpa-seminar-speaker-greg-green-mpia-title-milky-way-dust-and-dynamics/
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