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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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X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Los_Angeles
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20170312T100000
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TZOFFSETFROM:-0700
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DTSTART:20171105T090000
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170131T160000
DTEND;TZID=America/Los_Angeles:20170131T170000
DTSTAMP:20260422T224348
CREATED:20160922T160136Z
LAST-MODIFIED:20160922T160136Z
UID:335-1485878400-1485882000@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-30/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170202T160000
DTEND;TZID=America/Los_Angeles:20170202T170000
DTSTAMP:20260422T224348
CREATED:20160922T160319Z
LAST-MODIFIED:20160922T160319Z
UID:337-1486051200-1486054800@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-31/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170207T160000
DTEND;TZID=America/Los_Angeles:20170207T170000
DTSTAMP:20260422T224348
CREATED:20160922T160352Z
LAST-MODIFIED:20160922T160352Z
UID:339-1486483200-1486486800@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-32/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170209T160000
DTEND;TZID=America/Los_Angeles:20170209T170000
DTSTAMP:20260422T224348
CREATED:20160922T160425Z
LAST-MODIFIED:20160922T160425Z
UID:341-1486656000-1486659600@rpm.physics.lbl.gov
SUMMARY:Peter Sorensen (LBNL) "How to See Dark Photons: A Status Report on a New Avenue in Direct Detection"
DESCRIPTION:Abstract: \nI will discuss the new (old) idea that dark matter may reside in a hidden sector whose interactions with the standard model are mediated by a dark photon. Possibilities for direct detection of such particles will be discussed. This is particularly timely given the recent DOE call for a small scale direct detection experiment that can search new parameter space.\n20170209_RPM slides
URL:https://rpm.physics.lbl.gov/event/reserved-33/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170214T160000
DTEND;TZID=America/Los_Angeles:20170214T170000
DTSTAMP:20260422T224348
CREATED:20160922T160457Z
LAST-MODIFIED:20160922T160457Z
UID:343-1487088000-1487091600@rpm.physics.lbl.gov
SUMMARY:Manuel Franco Sevilla (UCSB) "Strategies for Searches of Physics Beyond the Standard Model in the XXI Century"
DESCRIPTION:ABSTRACT:\n\nAt the end of the XIX century\, Lord Kelvin summarized a widespread feeling among physicists by saying that “physics is essentially complete\, save for two little clouds”. The “clouds” he was referring to were the puzzling results from two measurements\, the Michelson-Morley experiment and the Black-body spectrum\, whose explanations ushered in an unprecedented era of discoveries that stretched throughout most of the XX century. After the culmination of the Standard Model in the 70’s\, the field of particle physics has found itself in a similar situation. Today\, the “clouds” guiding the searches for physics beyond the Standard Model are issues like dark matter or the hierarchy problem. Using SUSY searches at CMS and the measurement of B->D(*)TauNu decays at BaBar as models\, I will give an overview of some of the main strategies that are being followed in the quest to find new physics in the XXI century.
URL:https://rpm.physics.lbl.gov/event/reserved-34/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170216T160000
DTEND;TZID=America/Los_Angeles:20170216T170000
DTSTAMP:20260422T224348
CREATED:20160922T160525Z
LAST-MODIFIED:20160922T160525Z
UID:345-1487260800-1487264400@rpm.physics.lbl.gov
SUMMARY:Aritoki Suzuki (UCB) "Next Generation Cosmic Microwave Background Polarimetry Experiment - Enabling Technologies for an Order of Magnitude Increase in Detector Count"
DESCRIPTION:Precision measurements of Cosmic Microwave Background (CMB) temperature anisotropies over the last two decades have been a spectacular success\, constraining all six parameters of the LambdaCDM cosmological model to the percent level. However\, while CMB temperature is well explored\, current experiments are just now becoming sensitive enough to explore the rich physics of CMB polarization.\n“Stage-II” CMB experiments started to deploy in early 2010’s\, contain ~1\,000 millimeter-wave\, polarization-sensitive detectors\, and have discovered B-mode polarization due to weak gravitational lensing and set limits on B-modes due to inflationary gravitational waves. “Stage-III” experiments have begun to deploy this year and contain ~10\,000 detectors for an order-of-magnitude improvement in sensitivity.\nLooking to the future\, the CMB community has begun studying “CMB-S4”\, a “Stage-IV” experiment that will contain ~500\,000 detectors\, a factor ~100 increase over experiments currently in the field. The goal of CMB-S4 is to make a definitive measurement of CMB polarization from the ground in order to explore inflationary scenarios\, constrain the sum of the neutrino masses\, and search for new physics within the early universe.\nDuring this presentation\, I will discuss the exciting science objectives of modern CMB experiments\, the tremendous technological challenge of fielding large numbers of highly-sensitive detector arrays\, and the advancement in technologies we are developing to overcome these challenges to conduct the ultimate CMB polarization measurement.
URL:https://rpm.physics.lbl.gov/event/reserved-35/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170221T160000
DTEND;TZID=America/Los_Angeles:20170221T170000
DTSTAMP:20260422T224348
CREATED:20160922T160556Z
LAST-MODIFIED:20160922T160556Z
UID:347-1487692800-1487696400@rpm.physics.lbl.gov
SUMMARY:Stefano Camarda (CERN) "Electroweak precision physics at the LHC"
DESCRIPTION:Abstract:\nPrecision measurements of electroweak observables offer a viable\noption for finding indications of new physics and also guidance for\nthe next big discovery. In this talk\, I will focus on the latest\nelectroweak precision measurements at the LHC\, with an emphasis on the\nW-boson mass measurement recently published by ATLAS. The evaluation\nof the experimental systematic uncertainties\, as well as the\nuncertainties due to the modeling of the vector boson production and\ndecay of the ATLAS W-boson mass measurement will be discussed.\nIn addition\, the LHC results will be put in context to previous\nmeasurements at the Tevatron and LEP colliders.
URL:https://rpm.physics.lbl.gov/event/reserved-36/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170223T160000
DTEND;TZID=America/Los_Angeles:20170223T170000
DTSTAMP:20260422T224348
CREATED:20160922T160620Z
LAST-MODIFIED:20160922T160620Z
UID:349-1487865600-1487869200@rpm.physics.lbl.gov
SUMMARY:Alvaro Chavarria (U. Chicago) “Solid-State Imaging Detectors for Low-Energy Particle Physics”
DESCRIPTION:Abstract:\nThe low noise\, high spatial resolution and reliable performance of charge-coupled devices (CCDs) and complementary metal-oxide-semiconductor (CMOS) active-pixel sensors have made them detectors of choice for digital imaging. Although the slow time response of these devices has limited their application in high-energy particle physics\, for the case of rare-event searches\, where the particle interaction rate is extremely low\, their properties can be fully exploited to build detectors that outperform in many aspects the traditional technologies of the field. I will present recent results from the DAMIC experiment\, a low-mass dark matter search consisting of low-noise CCDs deployed in the SNOLAB laboratory. I will show how the exquisite spatial resolution of the detector allows for particle identification\, and provides the unique capability to reject sequences of radioactive decay with utmost efficiency. These techniques can be extended to the search for neutrinoless double beta decay. I will present a recent proposal where we argue that a large array of amorphous Se-82 imagers based on CMOS technology could achieve the background levels necessary to test if neutrinos are Majorana fermions even in the case of a normal hierarchy of neutrino masses.
URL:https://rpm.physics.lbl.gov/event/reserved-37/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
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