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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:America/Los_Angeles
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20190310T100000
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TZOFFSETFROM:-0700
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DTSTART:20191103T090000
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190228T160000
DTEND;TZID=America/Los_Angeles:20190228T170000
DTSTAMP:20260413T163649
CREATED:20181213T095445Z
LAST-MODIFIED:20181213T095445Z
UID:981-1551369600-1551373200@rpm.physics.lbl.gov
SUMMARY:LianTao Wang (U. Chicago) " Physics of Future Colliders"
DESCRIPTION:ABSTRACT:\nAfter the discovery of the Higgs boson\, the future of high energy physics became a central question. There have been several proposals of future colliders which would continue the exploration of the high energy frontier beyond the reach of the LHC. Their fate could be determined in this couple of years. I will give an overview of the physics cases for these proposals\, and offer my own perspective on the road ahead.
URL:https://rpm.physics.lbl.gov/event/lian-tao-wang-tba/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190305T160000
DTEND;TZID=America/Los_Angeles:20190305T170000
DTSTAMP:20260413T163649
CREATED:20190208T150408Z
LAST-MODIFIED:20190208T150408Z
UID:1019-1551801600-1551805200@rpm.physics.lbl.gov
SUMMARY:Yoshikazu Nagai (U. Colorado) "Understanding Neutrino Beams: Hadron Production Measurements with NA61/SHINE"
DESCRIPTION:ABSTRACT:\nA precise prediction of the neutrino flux is a key ingredient for achieving the physics goals of accelerator-based neutrino experiments. In modern experiments\, neutrino beams are created from the decays of secondary hadrons produced in hadron-nucleus interactions. Hadron production is the leading systematic uncertainty source on the neutrino flux prediction; therefore\, its precise measurement is essential.\nThe NA61/SPS Heavy Ion and Neutrino Experiment (NA61/SHINE) is a fixed-target experiment at the CERN Super Proton Synchrotron which studies hadron production in hadron-nucleus and nucleus-nucleus collisions for various physics goals. For neutrino physics\, light hadron beams (protons\, pions\, and kaons) are collided with a light nuclear target (carbon\, aluminum\, and beryllium) and spectra of outgoing hadrons are measured. In this talk\, I will present recent results and ongoing analyses of hadron production measurements at NA61/SHINE for precise neutrino flux predictions in the T2K and Fermilab-based long-baseline neutrino experiments. I will also discuss the necessity and prospects of further hadron production measurements for the next generation neutrino experiments with NA61/SHINE beyond 2020\, after the Long Shutdown 2 of the accelerator complex at CERN.
URL:https://rpm.physics.lbl.gov/event/yoshikazu-nagai-u-colorado-tba/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190307T160000
DTEND;TZID=America/Los_Angeles:20190307T170000
DTSTAMP:20260413T163649
CREATED:20190304T142847Z
LAST-MODIFIED:20190304T142847Z
UID:1037-1551974400-1551978000@rpm.physics.lbl.gov
SUMMARY:Emanuele Castorina (UCB) "Cosmology with Neutral Hydrogen in the Post Eeionization Era"
DESCRIPTION:ABSTRACT:\n \nMeasurements of the Cosmic Microwave Background (CMB) anisotropies and\, more recently\, of the distribution of galaxies at late times led us to the definition of a concordance cosmological model\, the so called LCDM model. Despite its phenomenological success\, several fundamental questions about the origin and fate of our Universe remain unanswered in the simplest LCDM scenario.  What mechanism\, if any\, has set up the initial conditions of the Universe? What is nature of Dark Energy? What is the value of neutrinos masses\, and are there any other light particles?\nSeveral upcoming experiments\, like DESI\, LSST and Simons Observatory\, promise to shed light on some of these misteries\, but will still be very far from the cosmic variance limit.\nIn fact most of the observable volume of the Universe lives at redshift z>2\,  where observing galaxies at high number densities becomes increasingly more difficult.\nA possible solution is offered by neutral hydrogen (HI)\, which is ubiquitous in our Universe at z<6. In emission\, HI can be mapped using the infamous 21 cm line at radio frequencies.\nIn this talk\, after summarizing the current status of 21 cm observations\, I will present the science case for a Stage-II 21 cm experiment targeting the redshift range 2<z<6\, and show it will dramatically improve our knowledge of DE and inflation\, while keep reducing errorbars on other cosmological parameters.
URL:https://rpm.physics.lbl.gov/event/emanuele-castorina-ucb-cosmology-with-neutral-hydrogen-in-the-post-eeionization-era/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190312T160000
DTEND;TZID=America/Los_Angeles:20190312T170000
DTSTAMP:20260413T163649
CREATED:20190208T150311Z
LAST-MODIFIED:20190208T150311Z
UID:1017-1552406400-1552410000@rpm.physics.lbl.gov
SUMMARY:Simon Knapen (IAS) "The Soft Frontier in Dark Matter Direct Detection"
DESCRIPTION:ABSTRACT:\nSearches for high energy signatures from beyond the standard model physics have advanced greatly\, but a lot of ground remains to be covered for soft\, low energy signals. In the context of dark matter direct detection\, future single-phonon detectors will be sensitive to dark matter with a mass as low as roughly 10 keV. In this regime\, the conventional nuclear recoil picture no longer applies and new theoretical tools are needed to correctly calculate the scattering rate. I will discuss the prospects for detector concepts based on superfluid helium and polar material targets\, where in the latter case we find a large daily modulation of the scattering rate.
URL:https://rpm.physics.lbl.gov/event/simon-knapen-ias-tba/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190314T160000
DTEND;TZID=America/Los_Angeles:20190314T170000
DTSTAMP:20260413T163649
CREATED:20190222T113646Z
LAST-MODIFIED:20190222T113646Z
UID:1030-1552579200-1552582800@rpm.physics.lbl.gov
SUMMARY:Dean Robinson (UCSC/LBNL) " Model-Independent Pathways to New Physics"
DESCRIPTION:ABSTRACT:\nNew methods and novel strategies are needed in the search for physics beyond the Standard Model (BSM). Motivated by signals of lepton flavor universality violation in semileptonic B decays\, I’ll discuss state-of-the-art theoretical developments and new model-independent theoretical tools that are required to self-consistently and efficiently classify these\, or other\, potential BSM effects within experimental analysis frameworks. I’ll then discuss the development\, theory motivations and reach for a proposed subdetector at the LHCb experiment — CODEX-b — capable of competitively searching for decays-in-flight of exotic long-lived particles\, which can be signals of a wide range of well-motivated BSM theories.
URL:https://rpm.physics.lbl.gov/event/dean-robinson-ucsc-lbnl-tba/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190319T160000
DTEND;TZID=America/Los_Angeles:20190319T170000
DTSTAMP:20260413T163649
CREATED:20190208T150236Z
LAST-MODIFIED:20190208T150236Z
UID:1015-1553011200-1553014800@rpm.physics.lbl.gov
SUMMARY:Richard Bonventre (LBNL) "Investigating Lepton Flavor and Number Violation with the Mu2e and SNO+ Experiments"
DESCRIPTION:Abstract: \nNeutrino oscillation measurements have shown that lepton flavor is not conserved\, and that the standard model must be extended to include neutrino mass. Neutrino-less double beta decay measurements will help understand the nature and origin of neutrino mass\, while searches for charged lepton flavor violation will probe whether there is additional flavor-related physics beyond the standard model.\nThe SNO+ experiment will employ 780 tons of liquid scintillator loaded with 1.3 tons of 130Te for a low-background and high-isotope-mass search for neutrino-less double beta decay. SNO+ will run in multiple phases with different target materials\, allowing it to additionally study geo- and reactor neutrinos\, solar neutrinos\, and search for invisible modes of nucleon decay. First results from the SNO+ water phase will be presented. The Mu2e experiment will search for the charged-lepton flavor violating (CLFV) neutrino-less conversion of a negative muon into an electron in the field of a nucleus. Mu2e will improve the previous measurement by four orders of magnitude\, reaching a 90% C.L. sensitivity to CLFV conversion rates of 8 × 10−17 or larger. The experiment is sensitive to a wide range of new physics at high mass scales\, complementing direct searches at colliders. Mu2e is under design and construction at the Muon Campus of Fermilab; we expect to start taking physics data in 2023.
URL:https://rpm.physics.lbl.gov/event/richard-bonventre-lbnl-tba/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190321T160000
DTEND;TZID=America/Los_Angeles:20190321T170000
DTSTAMP:20260413T163649
CREATED:20190222T113746Z
LAST-MODIFIED:20190222T113746Z
UID:1032-1553184000-1553187600@rpm.physics.lbl.gov
SUMMARY:Miaoyuan Liu (Fermilab) ""Measure what is measurable and make measurable what is not so — Uncover new physics with bosons at the LHC and upgrades of the CMS detector to maximize the discovery potential""
DESCRIPTION:Abstract:\n\nThe Standard Model describes the building blocks of matter and their interactions. It has been tested extensively with experimental data and found to be incredibly successful in describing nature. Discovering the Higgs boson in 2012 at the LHC completed the picture of the SM. The LHC is at the forefront of directly searching for new physics which is Beyond-Standard-Model (BSM)\, and I will discuss searches for supersymmetric partners of the electroweak bosons\, as well as measurement of an extremely rare process with three WWW bosons as stringent tests of the SM. I will also discuss the instrumentation which enables such studies. The discussion includes the recently completed CMS Phase-1 pixel upgrade\, as well as the R&D studies towards solving the future trigger and computing challenges using innovative machine learning approaches in future high energy experiments.
URL:https://rpm.physics.lbl.gov/event/miaoyuan-liu-fermilab-tba/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190328T160000
DTEND;TZID=America/Los_Angeles:20190328T170000
DTSTAMP:20260413T163649
CREATED:20190222T113844Z
LAST-MODIFIED:20190222T113844Z
UID:1034-1553788800-1553792400@rpm.physics.lbl.gov
SUMMARY:Florian Beutler (U. Portsmouth) "Exploring Fundamental Physics with Galaxy Redshift Surveys"
DESCRIPTION:Abstract: \nIn this talk\, I will present various ways in which we can use galaxy redshift surveys to constrain fundamental physical models. This year the DESI experiment will launch\, collecting a dataset of about 50 million galaxies and Quasars. Using observables like Baryon Acoustic Oscillations and Redshift-space distortions we can use this dataset to measure the sum of the neutrino masses and the number of neutrino species as well as test models of dark energy and modified gravity. Moreover\, we can test models of the very early Universe (inflation) through primordial non-Gaussianity and primordial oscillations. The multitude of upcoming survey experiments (LSST\, Euclid\, WFIRST\, DESI) offers exciting prospects to put the standard model of cosmology (LCDM) to the test.
URL:https://rpm.physics.lbl.gov/event/florian-beutler-u-portsmouth-tba/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
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