BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//INPA - ECPv6.8.3//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:INPA
X-ORIGINAL-URL:https://inpa.lbl.gov
X-WR-CALDESC:Events for INPA
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Los_Angeles
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20170312T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20171105T090000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170203T120000
DTEND;TZID=America/Los_Angeles:20170203T130000
DTSTAMP:20260528T002114
CREATED:20170127T214351Z
LAST-MODIFIED:20170127T214613Z
UID:122-1486123200-1486126800@inpa.lbl.gov
SUMMARY:Benjamin Schmidt (LBNL) - CUORE Commissioning
DESCRIPTION:
URL:https://inpa.lbl.gov/event/cuore-commissioning/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170217T120000
DTEND;TZID=America/Los_Angeles:20170217T130000
DTSTAMP:20260528T002114
CREATED:20170203T185508Z
LAST-MODIFIED:20170224T202654Z
UID:127-1487332800-1487336400@inpa.lbl.gov
SUMMARY:Scott Daniel (University of Washington) - Deterministic \chi^2 Exploration to Find Credible Limits Faster than by Bayesian Sampling
DESCRIPTION:Once data has been collected\, it is desirable to be able to quickly transform that data into statements about the values and corresponding uncertainties — the “confidence limits” or “credible limits” — of the physical parameters underlying the data.  Traditionally\, this problem is treated probabilistically. This process can be time consuming\, as enough samples need to be drawn that the distribution of samples converges to the Bayesian posterior distribution of the likelihood in parameter space.  We propose an alternative scheme based on the likelihood ratio test\, minimizing a cost function that incentivizes exploration of parameter space points within the credible limit but far from previously explored points.  Testing on toy likelihood functions with realistic non-Gaussian properties\, we find that this scheme converges to the same credible limit as the usual Bayesian methods but requires an order of magnitude fewer evaluations of the likelihood function.  Our code is publically available over GitHub.
URL:https://inpa.lbl.gov/event/speaker-scott-daniel-from-university-of-washington/
LOCATION:50A-5132- Sessler\, 50A-5132 Sessler Conference Room\, CA
ORGANIZER;CN="Kawana Yancey":MAILTO:kyancey@lbl.gov
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170224T120000
DTEND;TZID=America/Los_Angeles:20170224T130000
DTSTAMP:20260528T002114
CREATED:20170221T191141Z
LAST-MODIFIED:20170221T191141Z
UID:138-1487937600-1487941200@inpa.lbl.gov
SUMMARY:Raul Hennings Yeomans (UCB)
DESCRIPTION:Recent progress on the next generation double beta decay experiment with low-temperature macro-calorimeters (CUPID)\nThe Cuore Upgrade with Particle IDentification\, or CUPID\, is a proposed next generation double-beta decay experiment that requires a low-threshold optical photon light detector. The use of a secondary bolometer as a light detector is being investigated since\, $\alpha$-particles (the main background of CUORE-0) could be tagged by comparing the heat and light signals for each event\, given that the two betas from a neutrinoless double beta event would produce both heat and light (Cherenkov light in the case of TeO$_2$) while $\alpha$ events would produce only heat in the absorber. A baseline resolution of at least 20~eV is required in order to achieve a rejection factor of 99.9\% of the $\alpha$ background. I will review latest progress on CUPID\, particularly the development of low-Tc superconducting Transition Edge Sensor technology.
URL:https://inpa.lbl.gov/event/raul-hennings-yeomans-ucb/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170227T120000
DTEND;TZID=America/Los_Angeles:20170227T130000
DTSTAMP:20260528T002114
CREATED:20170223T191211Z
LAST-MODIFIED:20170224T202525Z
UID:153-1488196800-1488200400@inpa.lbl.gov
SUMMARY:Lauren Ice (ASU) - Measurement of the Two-Photon Exchange Contribution to Elastic Lepton-Proton Scattering with the OLYMPUS Experiment
DESCRIPTION:The OLYMPUS experiment measured the two-photon exchange contribution to elastic electron-proton scattering\, which is thought to be the most likely candidate to resolve the discrepancy observed between polarized and unpolarized measurements of the proton electric-to-magnetic form factor ratio. To deterimine the two-photon exchange contribtuion\, OLYMPUS measured the positron-proton to electron-proton elastic scattering cross section ratio over a wide range of four-momentum transfer from 0.6 < Q2 < 2.2 (GeV/c)2 and virtual photon polarizaton from 0.456 <  < 0.978. The two-photon exchange contribution is correlated to the deviation of the cross section ratio from unity. \nIn 2012\, the OLYMPUS experiment collected over 4 fb−1 of e+p and e−p scatter-ing data using electron and positron beams incident on a hydrogen gas target. The scattered leptons and protons were measured exclusively with a large acceptance spec-\ntrometer. OLYMPUS observed a slight rise in σe+p/σe−p of at most 1-2% over the Q2 range. This talk will discuss the motivations\, experiment\, analysis method\, and the preliminary results for the cross section ratio as measured by OLYMPUS.
URL:https://inpa.lbl.gov/event/lauren-ice/
LOCATION:50B-4205
END:VEVENT
END:VCALENDAR