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X-WR-CALNAME:LBNL Physics Division Research Progress Meetings
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BEGIN:VEVENT
DTSTART;TZID=UTC:20240402T160000
DTEND;TZID=UTC:20240402T170000
DTSTAMP:20260414T150410
CREATED:20240329T224150Z
LAST-MODIFIED:20240329T224337Z
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SUMMARY:Speaker: Boryana Hadzhiyska (UC Berkeley) - Title: Solving big-scale problems with small-scale models in the era of CMB-S4
DESCRIPTION:Research Progress Meeting \nDate: April 2\, 2024 \nTime: 4:00- 5:00 pm  \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Boryana Hadzhiyska (UC Berkeley) \nTitle: Solving big-scale problems with small-scale models in the era of CMB-S4 \nAbstract: In this talk\, I will focus on some of the new opportunities and new challenges that CMB-S4\, the next-generation cosmic microwave background (CMB) experiment\, presents\, and I will offer a viable path forward to meeting and exceeding the goals we have set up for it. The CMB has played a huge role in shaping our understanding of the history\, evolution and contents of our Universe. From our observations of the CMB\, we have attained a good grasp of about 13.8 billion years of cosmic history\, but our direct and indirect observations are limited to a much smaller range in energy scale\, which leaves unresolved some of the biggest puzzles such as the mechanism that seeded the primordial fluctuations and the nature of the dark sector. I will discuss how we can leverage observations of the CMB to learn about these much earlier periods of cosmic history and also\, how the CMB provides complementary probes of the lower-redshift universe. On large scales\, the B-mode polarization signal can reveal the origin of primordial fluctuations\, whereas the small-scale signal holds information about the presence of non-standard light relics and the sum of the neutrino masses. However\, measuring the primordial signal is a non-trivial task\, as on its way to us\, the signal has picked up contributions from lensing and astrophysical sources\, known as foregrounds. The best way to design accurate approaches for mitigating these foregrounds is via realistic all-sky simulations. I will present new techniques for painting foregrounds onto large-volume simulations\, using physically motivated models that close the loop between simulations and observations. In addition\, I will discuss ways of optimizing the CMB lensing reconstruction techniques\, which is crucial for improving our constraints on primordial quantities such as the number of light relics and the tensor-to-scalar ratio as well as the sum of neutrino masses. Finally\, I will argue that synergies between CMB secondaries and large-scale structure surveys can place tight constraints on cosmology and astrophysics. The measurement precision of CMB-S4 will be unmatched\, but in order to make the most out of it\, we need a big step-up in our analysis and theory tools\, including the development of realistic all-sky simulations as well as techniques for optimal extraction of the small-scale cosmological signal. \n\nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speaker-boryana-hadzhiyska-uc-berkeley-title-solving-big-scale-problems-with-small-scale-models-in-the-era-of-cmb-s4/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20240404T160000
DTEND;TZID=UTC:20240404T170000
DTSTAMP:20260414T150410
CREATED:20240329T225035Z
LAST-MODIFIED:20240402T163945Z
UID:2573-1712246400-1712250000@rpm.physics.lbl.gov
SUMMARY:Speaker: Joshua Combes (JILA) - Title: Game of Qubits: winter is coming
DESCRIPTION:Research Progress Meeting \nDate: April 4\, 2024 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Joshua Combes (JILA) \nTitle: Game of Qubits: winter is coming \nAbstract: The ‘Quantum Winter’ is a term that paints a scenario where the progress in quantum computing might significantly slow down\, accompanied by a decrease in both public and private investment\, and mounting skepticism regarding the field’s potential and future accomplishments. This concept echoes the historical ‘AI Winters\,’ periods of contraction in artificial intelligence research. In this presentation\, I will first evaluate our current milestones in quantum hardware development\, setting the stage for an understanding of why there’s a growing concern about an impending Quantum Winter. Following this\, I’ll share my forecasts\, pinpointing specific years when we might anticipate this cooldown to manifest. To conclude\, I’ll turn the lens inward\, contemplating proactive strategies and responses we\, as a research community\, should consider to navigate and possibly mitigate the impact of this predicted quantum chill. This talk aims not only to forecast but to fortify our resolve in advancing quantum computing through potential adversities. \nJoin Zoom Meeting \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-joshua-combes-jila-title-tba/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20240409T160000
DTEND;TZID=UTC:20240409T170000
DTSTAMP:20260414T150410
CREATED:20240405T170743Z
LAST-MODIFIED:20240405T170743Z
UID:2582-1712678400-1712682000@rpm.physics.lbl.gov
SUMMARY:Speaker: Michel Piat (APC-IN2P3) - Title: The Q&U Bolometric Interferometer for Cosmology (QUBIC): status and perspectives
DESCRIPTION:Research Progress Meeting \nDate: April 9\, 2024 \nTime: 4:00- 5:00 pm  \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Michel Piat (APC-IN2P3) \nTitle: The Q&U Bolometric Interferometer for Cosmology (QUBIC): status and perspectives \nAbstract: QUBIC (Q & U Bolometric Interferometer for Cosmology) is an international ground-based experiment dedicated in the measurement of the polarized fluctuations of the millimeter sky and especially the Cosmic Microwave Background (CMB). It is based on bolometric interferometry\, an original detection technique which combine the immunity to systematic effects of an interferometer with the sensitivity of low temperature incoherent detectors. QUBIC is currently in commissioning in Argentina\, at the Alto Chorrillos mountain site at 5000m a.s.l. near San Antonio de los Cobres\, in the Salta province. After a description of the QUBIC instrument\, I will present the last results of the first characterization phases with a focus on the detectors and readout system based on NbSi Transition Edge Sensors (TESs) cooled to 320mK. The perspective of spectro-imaging will also be described allowing for better foreground mitigation. This feature will soon be tested with QUBIC and could represent a significant breakthrough in CMB polarimetry. \n\nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speaker-michel-piat-apc-in2p3-title-the-qu-bolometric-interferometer-for-cosmology-qubic-status-and-perspectives/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20240411T160000
DTEND;TZID=UTC:20240411T170000
DTSTAMP:20260414T150410
CREATED:20240312T155021Z
LAST-MODIFIED:20240312T155447Z
UID:2539-1712851200-1712854800@rpm.physics.lbl.gov
SUMMARY:Speaker: Slavomira Stefkova (Karlsruhe Institute of Technology) - Title: Glimpse of a Rare B Decay with Two Invisible Neutrinos at Belle II
DESCRIPTION:Research Progress Meeting \nDate: April 11\, 2024 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Slavomira Stefkova (Karlsruhe Institute of Technology) \nTitle: Glimpse of a Rare B Decay with Two Invisible Neutrinos at Belle II \nAbstract: The decay of B+→K+νν̄ is mediated by flavor-changing neutral current. In the Standard Model\, the rate for this elusive process is predicted to be 6×10^-6\, while enhancements are foreseen in many New Physics models. Searching for B+→K+νν̄ decays is\, however\, experimentally challenging as this decay is not only rare but also contains two neutrinos\, leaving no signature in the detector. In this talk\, I will show you details of the newest measurement of the rate of B+→K+νν̄ decays\, which is based on 362 fb^-1 of SuperKEKB electron-positron collision data collected at the Upsilon(4S) resonance by the Belle II experiment in Tsukuba\, Japan. Using two different but complementary reconstruction techniques\, we found\, for the first time\, evidence for the B+→K+νν̄ process. At the end of my talk\, I will highlight other future opportunities in B-decays with invisible signatures. \nJoin Zoom Meeting \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-slavomira-stefkova-kit-title-glimpse-of-a-rare-b-decay-with-two-invisible-neutrinos-at-belle-ii/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20240416T160000
DTEND;TZID=UTC:20240416T170000
DTSTAMP:20260414T150410
CREATED:20240410T203009Z
LAST-MODIFIED:20240410T203009Z
UID:2586-1713283200-1713286800@rpm.physics.lbl.gov
SUMMARY:Speaker: Julien Guy (LBNL) - Title: The Dark Energy Spectroscopic Instrument First Year Results: Cosmic Expansion History with Baryon Acoustic Oscillations
DESCRIPTION:Research Progress Meeting \nDate: April 16\, 2024 \nTime: 4:00- 5:00 pm  \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Julien Guy (LBNL) \nTitle: The Dark Energy Spectroscopic Instrument First Year Results: Cosmic Expansion History with Baryon Acoustic Oscillations \nAbstract: The Dark Energy Spectroscopic Instrument (DESI) collaboration is conducting a 5 year redshift survey of 40 million extra-galactic sources over 14\,000 square degrees of the northern sky. One of its primary goals is to measure the cosmic expansion history with baryon acoustic oscillations (BAO). I will present the measurement of BAO in galaxy\, quasar and Lyman-alpha forest tracers from the first year of observation. With 5.7 million galaxy and quasar redshifts in the range 0.1 < z < 2.1\, and 420\,000 Lyman-alpha forest quasars at higher redshift\, the aggregate precision on BAO is of 0.52% at z<2.1 and 1.1% at an effective redshift z=2.3\, surpassing in a year two decades of observations with the SDSS. I will present some of the numerous validation tests performed with simulations and blinded data. I will then highlight the main cosmological results\, with improved constraints on the dark energy equation of state\, the Hubble parameter\, spatial curvature\, and the sum of neutrino masses. \n\nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speaker-julien-guy-lbnl-title-the-dark-energy-spectroscopic-instrument-first-year-results-cosmic-expansion-history-with-baryon-acoustic-oscillations/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20240425T160000
DTEND;TZID=UTC:20240425T170000
DTSTAMP:20260414T150410
CREATED:20240419T165251Z
LAST-MODIFIED:20240419T165251Z
UID:2593-1714060800-1714064400@rpm.physics.lbl.gov
SUMMARY:Speaker: Caterina Vernieri (SLAC) - Title: Delving into the Unknown: The Higgs Boson at Future Colliders
DESCRIPTION:Research Progress Meeting \nDate: April 25\, 2024 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Caterina Vernieri (SLAC) \nTitle: Delving into the Unknown: The Higgs Boson at Future Colliders \nAbstract: The Higgs boson was discovered in 2012 by the ATLAS and CMS experiments at the world’s most powerful particle collider\, the Large Hadron Collider (LHC) in Geneva\, Switzerland. This particle plays a unique role in fundamental physics. It gives all of the known elementary particles\, including itself\, their masses. While we now have a strong evidence that the Higgs field is indeed the unique source of mass for the known elementary particles\, the next step is to search for new interactions that could also explain why the Higgs field has the properties required by the Standard Model of particle physics. We have no clear roadmap to this new theory but the Higgs boson plays a crucial role in this quest. The goal of a next-generation e+e- collider is to carry out precision measurements to per-cent level of the Higgs boson properties that are not accessible at the LHC. In this talk we present the challenges and possibilities for the next e+e- collider and recent progress. The exploitation of the complementarity between LHC and future colliders will be the key to understanding fundamentally the Higgs boson. \nJoin Zoom Meeting \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-caterina-vernieri-slac-title-delving-into-the-unknown-the-higgs-boson-at-future-colliders/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20240430T160000
DTEND;TZID=UTC:20240430T170000
DTSTAMP:20260414T150410
CREATED:20240426T190108Z
LAST-MODIFIED:20240426T190108Z
UID:2600-1714492800-1714496400@rpm.physics.lbl.gov
SUMMARY:Speakers: Career Panel (Industry) - Title: How to start a career in industry: A panel discussion with physicists who work in industry
DESCRIPTION:Research Progress Meeting \nDate: April 30\, 2024 \nTime: 4:00- 5:00 pm  \nLocation: 50-4-Auditorium [In-Person and HYBRID]  \nPanelists: \n\nMarat Freytsis (Anthropic)\nRiccardo Manenti (Rigetti)\nRonald Goossens (ASML)\nKathy Copic (Fieldwork Partners)\nMark Dishner (Lam Research)\nAna Ovcharova (Ionq)\n\nTitle: How to start a career in industry: A panel discussion with physicists who work in industry \nAbstract: In this panel discussion postdocs and students will have the opportunity to ask questions about how to approach a career in industry. How do you make the right connections? How to craft a compelling application? What does work-life balance look like in industry? etc etc \nMost of the time will be reserved for interactions with the audience\, so bring along all your questions about finding positions in industry. \n\nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speakers-career-panel-industry-title-how-to-start-a-career-in-industry-a-panel-discussion-with-physicists-who-work-in-industry/
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