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PRODID:-//LBNL Physics Division Research Progress Meetings - ECPv6.8.3//NONSGML v1.0//EN
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METHOD:PUBLISH
X-ORIGINAL-URL:https://rpm.physics.lbl.gov
X-WR-CALDESC:Events for LBNL Physics Division Research Progress Meetings
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X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Los_Angeles
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20190310T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20191103T090000
END:STANDARD
TZID:UTC
BEGIN:STANDARD
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
TZNAME:UTC
DTSTART:20190101T000000
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190905T160000
DTEND;TZID=America/Los_Angeles:20190905T170000
DTSTAMP:20260413T230613
CREATED:20190801T134201Z
LAST-MODIFIED:20190812T204525Z
UID:1101-1567699200-1567702800@rpm.physics.lbl.gov
SUMMARY:David Schlegel (LBNL) "TBA"
DESCRIPTION:ABSTRACT:
URL:https://rpm.physics.lbl.gov/event/david-schlegel-lbnl-tba/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
CATEGORIES:RPM Talk
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190919T160000
DTEND;TZID=America/Los_Angeles:20190919T170000
DTSTAMP:20260413T230613
CREATED:20190605T084324Z
LAST-MODIFIED:20190916T173449Z
UID:1075-1568908800-1568912400@rpm.physics.lbl.gov
SUMMARY:Beate Heinemann (DESY) "European Strategy for Particle Physics Update 2020: Status and Prospects"
DESCRIPTION:ABSTRACT:\nAt present a process is ongoing in Europe to update the European Strategy of Particle Physics with respect to the previous update from May 2013. The process was started last year and is expected to end in May 2020. Major discussions of the scientific prospects of a wide variety of future projects took place during a symposium in Granada/Spain. In this talk I will explain the process and try to highlight the scientific opportunities discussed.
URL:https://rpm.physics.lbl.gov/event/beate-heinemann-desy-tba/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
CATEGORIES:RPM Talk
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191001T160000
DTEND;TZID=UTC:20191001T170000
DTSTAMP:20260413T230613
CREATED:20190923T152339Z
LAST-MODIFIED:20190923T152339Z
UID:1236-1569945600-1569949200@rpm.physics.lbl.gov
SUMMARY:Patrick de Perio (Triumf) " CP Violation in Neutrino Oscillations with Hyper-Kamiokande
DESCRIPTION:Abstract: We live in a matter dominated world\, so where did all the antimatter go? The Hyper-Kamiokande (Hyper-K) experiment in Japan is trying to detect charge-parity violation (CPV) in neutrino oscillation\, which could help explain this phenomenon. As the successor of the T2K experiment\, Hyper-K produces a beam of neutrinos or antineutrinos directed towards a far detector 295 km away\, which is about 8 times bigger than the current far detector\, Super-Kamiokande\, a water Cherenkov detector. With an expected statistical uncertainty of 3% for both neutrinos and antineutrinos\, Hyper-K aims to tease out the small neutrino/antineutrino oscillation difference. In this talk\, I will discuss our efforts to control systematic errors at an unprecedented level\, arising from 1) neutrino beam production\, 2) neutrino interaction modeling\, and 3) water Cherenkov detector calibration.
URL:https://rpm.physics.lbl.gov/event/patrick-de-perio-triumf-cp-violation-in-neutrino-oscillations-with-hyper-kamiokande/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191022T160000
DTEND;TZID=UTC:20191022T170000
DTSTAMP:20260413T230613
CREATED:20191017T210500Z
LAST-MODIFIED:20191021T162505Z
UID:1247-1571760000-1571763600@rpm.physics.lbl.gov
SUMMARY:David Shih (Rutgers/LBNL) "Searching for the Unexpected at the LHC with Unsupervised Machine Learning"
DESCRIPTION:ABSTRACT: \nConventional methods for searching for new physics at the LHC have mostly been “top-down”: starting from a specific model\, searches are designed and optimized to have the best sensitivity to that model. Despite hundreds of conventional new physics searches at the LHC\, none have turned up any hint of new physics. Maybe it’s time to admit that we don’t know what we’re looking for. \nBreakthroughs in modern deep learning have the potential to revolutionize how we search for new physics at the LHC. In particular\, techniques borrowed from unsupervised machine learning could enable us to search for new physics in a largely model-agnostic way. In this talk I will review some promising recent proposals in this direction. These proposed search strategies could complement more conventional methods by finding surprising signals that were not anticipated by any model\, ensuring that we leave no stone unturned in the hunt for new physics at the LHC.
URL:https://rpm.physics.lbl.gov/event/david-shuh-rutgers-lbnl-searching-for-the-unexpected-at-the-lhc-with-unsupervised-machine-learning/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191031T160000
DTEND;TZID=UTC:20191031T170000
DTSTAMP:20260413T230613
CREATED:20191023T182812Z
LAST-MODIFIED:20191030T182846Z
UID:1294-1572537600-1572541200@rpm.physics.lbl.gov
SUMMARY:Koji Terashi (CERN) " Quantum Computing and Possible Application to High-Energy Physics"
DESCRIPTION:Abstract: \nHigh-energy frontier in particle physics is going to enter into an era of precision studies after Run 3 at the LHC\, with the increase of proton luminosity and upgraded detectors. This will pose a significant challenge to the event reconstruction and data analysis\, where one has to look for (tiny) hints of new physics in a huge amount of collected data. Over the last few years quantum computing\, in particular the hardware systems with superconducting qubits\, has grown significantly\, making a quantum computer with order of 50-100 qubits\, called NISQ device\, nearly in hand. This motivates an exploration of this new technology in high energy physics (HEP) experiments\, aiming to identify interesting application of quantum algorithms to data analysis. In this talk\, I will discuss about possible HEP applications of quantum computing and current status of those studies. \n 
URL:https://rpm.physics.lbl.gov/event/koji-terashi-cern-quantum-computing-and-possible-application-to-high-energy-physics/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191105T160000
DTEND;TZID=UTC:20191105T170000
DTSTAMP:20260413T230613
CREATED:20191014T153552Z
LAST-MODIFIED:20191014T153552Z
UID:1242-1572969600-1572973200@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-66/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191107T160000
DTEND;TZID=UTC:20191107T170000
DTSTAMP:20260413T230613
CREATED:20191014T153617Z
LAST-MODIFIED:20191014T153617Z
UID:1244-1573142400-1573146000@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-67/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191112T160000
DTEND;TZID=UTC:20191112T170000
DTSTAMP:20260413T230613
CREATED:20191022T015641Z
LAST-MODIFIED:20191022T015641Z
UID:1250-1573574400-1573578000@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-68/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191114T160000
DTEND;TZID=UTC:20191114T170000
DTSTAMP:20260413T230613
CREATED:20191022T015715Z
LAST-MODIFIED:20191022T015715Z
UID:1252-1573747200-1573750800@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-69/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191119T160000
DTEND;TZID=UTC:20191119T170000
DTSTAMP:20260413T230613
CREATED:20191022T015736Z
LAST-MODIFIED:20191022T015736Z
UID:1254-1574179200-1574182800@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-70/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191121T160000
DTEND;TZID=UTC:20191121T170000
DTSTAMP:20260413T230613
CREATED:20191022T015801Z
LAST-MODIFIED:20191115T182640Z
UID:1256-1574352000-1574355600@rpm.physics.lbl.gov
SUMMARY:Zhaodi Pan (U. Chicago) "Instrument and science for the SPT-3G cosmic microwave background receiver"
DESCRIPTION:Abstract:\n\nSPT-3G is a third-generation camera for the 10-meter diameter South Pole Telescope (SPT)\, which is designed to measure the cosmic microwave background (CMB). To achieve a high mapping speed\, we have developed a new multichroic receiver with a total of 16\,000 polarization-sensitive detectors. SPT-3G began a 6-year 1500 square degree survey in February 2018\, which will produce measurements of CMB temperature and polarization anisotropies with an unprecedented combination of angular resolution and sensitivity. In this talk\, I will summarize the instrument status and highlight the development of the most compact millimeter-wavelength Fourier transform spectrometer\, which was used for SPT-3G and is also a prototype for the proposed PIXIE satellite. I will also discuss the science goals and current data analyses\, with a focus on the gravitational lensing analysis using SPT-3G’s first-year data.\n 
URL:https://rpm.physics.lbl.gov/event/reserved-71/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191126T160000
DTEND;TZID=UTC:20191126T170000
DTSTAMP:20260413T230613
CREATED:20191022T015827Z
LAST-MODIFIED:20191022T015827Z
UID:1258-1574784000-1574787600@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-72/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191128T160000
DTEND;TZID=UTC:20191128T170000
DTSTAMP:20260413T230613
CREATED:20191022T015841Z
LAST-MODIFIED:20191022T015856Z
UID:1260-1574956800-1574960400@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-73/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191203T160000
DTEND;TZID=UTC:20191203T170000
DTSTAMP:20260413T230613
CREATED:20191022T015919Z
LAST-MODIFIED:20191122T164308Z
UID:1262-1575388800-1575392400@rpm.physics.lbl.gov
SUMMARY:Tommaso Ghigna (Oxford U.)  "The quest for CMB B-modes and the challenge of controlling systematic effects"
DESCRIPTION:Abstract:  \nThe Cosmic Microwave Background has played a central role for cosmology in the past few decades. From the very first detection of its temperature more than 50 years ago to the measurement of the temperature anisotropy\, every step contributed to advancing our understanding of the fundamental laws that govern our Universe. One of the most ambitious targets of current and future experiments is the detection of the primordial polarized B-mode signal. This signal is a tracer of inflation and it is expected to be most visible at large angular scales.\nI will review the current status of the search for B-modes focusing on one of the main challenges: instrumental systematic effects and strategies to keep them under control. In particular I will discuss the impact of band-pass uncertainty in the presence of Galactic foregrounds. I will describe a simulation procedure developed to study the induced bias into CMB polarization maps\, and the recovered tensor-to-scalar ratio parameter. I will describe the connection between the simulation results and the instrumental parameters for a representative space mission\, and define requirements to minimize the effect. Furthermore\, I will introduce our current plan to develop a testbed\, which we can use to address multiple systematic effects without waiting for the fully assembled instrument. \nThe required sensitivity for a definitive measurement of the B-mode signal is extremely challenging\, and focal planes of experiments are growing in size to increase the optical throughput in order to meet the requirements. This will require extra efforts in designing\, fabricating\, and testing all telescope components; only through meticulous knowledge of the instrument and all its sub-systems\, as well as a careful calibration\, we will be able to reach this ambitious goal.
URL:https://rpm.physics.lbl.gov/event/reserved-74/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191205T160000
DTEND;TZID=UTC:20191205T170000
DTSTAMP:20260413T230613
CREATED:20191022T015940Z
LAST-MODIFIED:20191119T165434Z
UID:1264-1575561600-1575565200@rpm.physics.lbl.gov
SUMMARY:Peter Timbie (UW-Madison) "21cm Intensity Mapping: A New Cosmological Tool?"
DESCRIPTION:ABSTRACT: \nThe 21 cm line from neutral hydrogen gas has many useful properties for mapping large volumes of the cosmos. These maps will give us a view of the Universe when the first luminous objects formed through gravity – the Cosmic Dawn and the Epoch of Reionization\, and later\, the post-Reionization Universe. They may even allow us to map the epoch before these luminous objects\, the cosmic dark ages. The large volumes of these maps promise dramatic improvements in estimation of cosmological parameters. Data is flowing now from a new generation of radio telescopes optimized for this task. Unfortunately\, the main challenge for all of them is that the astrophysical radio foregrounds are ~10\,000 times brighter than the expected hydrogen signal. In this talk I will focus on current and planned efforts to use the new technique of` ‘hydrogen intensity mapping’ to make tomographic maps of the post-Reionization universe. In particular\, I will describe the first measurements from an instrument in China\, called the Tianlai (‘Cosmic Sound’) Pathfinder.
URL:https://rpm.physics.lbl.gov/event/reserved-75/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191210T160000
DTEND;TZID=UTC:20191210T170000
DTSTAMP:20260413T230613
CREATED:20191022T020012Z
LAST-MODIFIED:20191209T163920Z
UID:1266-1575993600-1575997200@rpm.physics.lbl.gov
SUMMARY:Jelle Aalbers (Stockholm U) "XENON1T: When All Other Lights Go Out"
DESCRIPTION:Abstract:\nDirect detection experiments create the most radioactively quiet spots on earth\, to reveal collisions between dark and ordinary matter. XENON1T\, the most sensitive such experiment currently\, will soon be succeeded by LZ and XENONnT. This talk highlights XENON1T’s recent light dark matter search results\, and modern analysis techniques — full online processing\, and tensorflow-based profile likelihoods — to boost the physics reach of future direct detection experiments and other rare-event searches.
URL:https://rpm.physics.lbl.gov/event/reserved-76/
LOCATION:50B-4205
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191212T160000
DTEND;TZID=UTC:20191212T170000
DTSTAMP:20260413T230613
CREATED:20191022T020036Z
LAST-MODIFIED:20191209T164108Z
UID:1268-1576166400-1576170000@rpm.physics.lbl.gov
SUMMARY:Qing Shilo Xia (Yale) "Hunting for neutrinoless double beta decay with liquid xenon detectors"
DESCRIPTION:Abstract:  \n\nLiquid xenon (LXe) is employed in a number of current and future detectors for rare event searches. In this talk\, I will present the latest results from EXO-200\, which searched for neutrinoless double beta decay (0υββ) in Xe-136 between 2011 and 2018. I will also present a measurement of the absolute scintillation and ionization response generated by MeV energy gamma sources over a range of electric fields in EXO-200. These measurements are useful for simulating the performance of future 0υββ detectors employing LXe\, such as nEXO\, which is a next generation 0υββ experiment using Xe-136 aiming to reach a half-life sensitivity ~10^28 years. nEXO will require ultra-low radioactivity\, high-speed cabling to carry digital signals from in-LXe electronics. I will describe the development of high-bandwidth digital cable prototypes with sufficiently low radioactivity for use in the experiment. While designed specifically for nEXO\, the demonstration of radiopure high-bandwidth cabling and interconnection techniques is relevant for many next-generation rare-event searches with large channel counts and high-speed digital electronics.
URL:https://rpm.physics.lbl.gov/event/reserved-77/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191217T160000
DTEND;TZID=UTC:20191217T170000
DTSTAMP:20260413T230613
CREATED:20191022T020055Z
LAST-MODIFIED:20191210T201048Z
UID:1270-1576598400-1576602000@rpm.physics.lbl.gov
SUMMARY:Sumit Dahal (Johns Hopkins U) "The Cosmology Large Angular Scale Surveyor: Detector Design and Performance"
DESCRIPTION:Abstract: \nThe Cosmology Large Angular Scale Surveyor (CLASS) aims to characterize the primordial gravitational waves at the level of tensor-to-scalar ratio of 0.01\, and make a cosmic-variance-limited measurement of the optical depth to reionization. CLASS is an array of four telescopes that surveys 70% of the microwave sky from the Atacama Desert at 40\, 90\, 150\, and 220 GHz frequency bands. A unique combination of large sky coverage\, rapid front-end polarization modulator\, broad frequency coverage\, and background-limited detectors enables CLASS to characterize the B-mode and E-mode power spectra on both the reionization and recombination scales. The detector arrays for all four CLASS telescopes contain smooth-walled feedhorns that couple to transition-edge sensor bolometers through planar orthomode transducers fabricated on mono-crystalline silicon. In this talk\, I will give an overview of the design and performance of the CLASS detectors and provide an update on the current status of CLASS telescopes.
URL:https://rpm.physics.lbl.gov/event/reserved-78/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191219T160000
DTEND;TZID=UTC:20191219T170000
DTSTAMP:20260413T230613
CREATED:20191022T020125Z
LAST-MODIFIED:20191022T020149Z
UID:1272-1576771200-1576774800@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-79/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191224T160000
DTEND;TZID=UTC:20191224T170000
DTSTAMP:20260413T230613
CREATED:20191022T020220Z
LAST-MODIFIED:20191022T020220Z
UID:1274-1577203200-1577206800@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-80/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191226T160000
DTEND;TZID=UTC:20191226T170000
DTSTAMP:20260413T230613
CREATED:20191022T020246Z
LAST-MODIFIED:20191022T020246Z
UID:1276-1577376000-1577379600@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-81/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20191231T160000
DTEND;TZID=UTC:20191231T170000
DTSTAMP:20260413T230613
CREATED:20191022T020313Z
LAST-MODIFIED:20191022T020313Z
UID:1278-1577808000-1577811600@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-82/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20200102T160000
DTEND;TZID=UTC:20200102T170000
DTSTAMP:20260413T230613
CREATED:20191022T020342Z
LAST-MODIFIED:20191022T020342Z
UID:1280-1577980800-1577984400@rpm.physics.lbl.gov
SUMMARY:Reserved
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/reserved-83/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20200107T160000
DTEND;TZID=UTC:20200107T170000
DTSTAMP:20260413T230613
CREATED:20191022T020407Z
LAST-MODIFIED:20200107T203040Z
UID:1282-1578412800-1578416400@rpm.physics.lbl.gov
SUMMARY:Hanna Herde (Brandeis U.) "Measuring the Mass of the Higgs Boson in the Four-Lepton Final State with the ATLAS Detector"
DESCRIPTION:Abstract:\nThe Higgs boson mass determines its couplings to every other known particle – and it is a free parameter of the Standard Model of Particle Physics.  Understanding the Higgs’ connections with the rest of the universe requires measuring its mass experimentally. This talk presents the mass measurement in the four-lepton final state with the ATLAS detector using the full LHC Run 2 proton-proton dataset of 139 \fb at \sqrt{s}=13 TeV. It will particularly emphasize the role of the detector  and include a look at ATLAS’ future in the High Luminosity era  – the Phase II Inner Tracker upgrade.
URL:https://rpm.physics.lbl.gov/event/reserved-84/
LOCATION:50B-4205
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20200109T160000
DTEND;TZID=UTC:20200109T170000
DTSTAMP:20260413T230613
CREATED:20191022T020430Z
LAST-MODIFIED:20191218T165746Z
UID:1284-1578585600-1578589200@rpm.physics.lbl.gov
SUMMARY:Zhi Zheng (U. Michigan) "Physics with the same-sign dilepton and multilepton events"
DESCRIPTION:Abstract:\nDespite of the discovery of a Higgs-like particle in 2012\, there are still many unanswered questions. Studying events with the same-sign dilepton and multilepton (SSML) may help to gain insight into those questions. In this presentation\, I will give an overview of physics and challenges related to the analyses of SSML events\, focusing on the three analyses I worked on\, namely\, search for beyond standard model physics\, studies of ttH and ttW production and search for four-top production with the ATLAS detector.
URL:https://rpm.physics.lbl.gov/event/reserved-85/
LOCATION:50B-4205
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20200114T160000
DTEND;TZID=UTC:20200114T170000
DTSTAMP:20260413T230613
CREATED:20191022T020457Z
LAST-MODIFIED:20200106T162058Z
UID:1286-1579017600-1579021200@rpm.physics.lbl.gov
SUMMARY:Marjon Moulai (MIT) "Unstable Sterile Neutrinos in IceCube and Beyond
DESCRIPTION:Abstract:\nLong-standing anomalies in short-baseline neutrino oscillation experiments suggest the existence of a new particle: the sterile neutrino. Unlike other neutrinos\, sterile neutrinos do not interact via the weak nuclear force. Global fits to experimental data find a significant preference for a 3+1 sterile neutrino model\, which introduces a fourth\, heavier mass eigenstate\, over the Standard Model with three massive neutrinos. However\, disagreement between the preferred parameter regions in the appearance and disappearance datasets suggest that something beyond the 3+1 model is needed. In this talk\, I will address this problem in two ways: the first is a new\, unique search for sterile neutrinos\, and the second is an unstable sterile neutrino model. IceCube\, a gigaton ice-Cherenkov detector\, is uniquely sensitive to a signature of sterile neutrinos that occurs for neutrinos traversing the earth at TeV energies. I will present the new 3+1 sterile neutrino search result from IceCube using eight years of data. Then I will discuss a sterile neutrino model involving neutrino decay. I will present: the phenomenology of this model in the case of IceCube; the result of incorporating IceCube data into recent global fits; and finally\, the status of an eight-year search for unstable sterile neutrinos in IceCube.
URL:https://rpm.physics.lbl.gov/event/reserved-86/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20200116T160000
DTEND;TZID=UTC:20200116T170000
DTSTAMP:20260413T230613
CREATED:20191022T020519Z
LAST-MODIFIED:20200113T165226Z
UID:1288-1579190400-1579194000@rpm.physics.lbl.gov
SUMMARY:Daniel Joseph Antrim (UCI) "It Takes Two to Lambda: A New Dilepton Channel for the Search for Higgs Boson Pairs and a Pair of New Small Wheels for the Upgrade of the ATLAS Detector at CERN"
DESCRIPTION:Abstract:  \nThe rich program of study opened up by the discovery of a 125 GeV boson in 2012 so far leads us to consider this particle to be the Higgs boson as predicted by the Standard Model (SM) of particle physics\, the particle famously responsible for providing elementary particles their masses. To be sure that this is the case\, the last-remaining fundamental parameter of the SM — the Higgs self-coupling parameter\, “\lambda” — will have to be measured and checked for consistency with SM-prediction. In the SM\, the parameter \lambda gives structure to the Higgs vacuum and is therefore fundamental to our understanding of electroweak physics and symmetry breaking that is paramount to our understanding of the Universe. Measurement of \lambda at the LHC will proceed via the study of ultra-rare pp collision events in which Higgs boson pairs (HH) are produced. If the LHC is to have a chance at making meaningful statements about \lambda\, all avenues of study of HH must be sought out. In this talk I will therefore discuss a promising brand new channel in the search for Higgs boson pairs that I have developed and introduced over the past several years using the ATLAS detector at CERN. Additionally\, with the foreseen increases in pp collision intensities over the next decades\, the ATLAS detector will have to be upgraded if the physics program is to remain successful. This is especially true if we wish to have any hope of observing HH events. With this in mind\, I will also touch upon my involvement in the on-going upgrade of the forward muon system of the ATLAS detector\, the so-called “New Small Wheel” (NSW) Upgrade\, which comprises an upgrade of over 60% of ATLAS’ muon spectrometer coverage as well as being the largest on-going upgrade of any of the LHC experiments.
URL:https://rpm.physics.lbl.gov/event/reserved-87/
LOCATION:INPA Common Room (50-5026)\, 50-5026
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20200121T160000
DTEND;TZID=UTC:20200121T170000
DTSTAMP:20260413T230613
CREATED:20200113T224951Z
LAST-MODIFIED:20200114T164232Z
UID:1334-1579622400-1579626000@rpm.physics.lbl.gov
SUMMARY:Damian Goeldi (Carleton U) "Enhancing the Physics Reach of the DUNE far Detector"
DESCRIPTION:Abstract:\n\nDUNE is a planned long-baseline neutrino oscillation experiment measuring μ disappearance and e appearance in an accelerator μ beam (arXiv:1601.05471). Its primary goals are measuring CP violation in the lepton sector\, determining the ordering of the three neutrino masses\, and precision tests of the three-flavour neutrino oscillation paradigm. Furthermore\, DUNE aims to investigate proton decay\, and the neutrino flux from the core-collapse of a potential supernova within our galaxy. Finally\, it has recently been proposed (DOI:10.1103/PhysRevLett.123.131803) that an upgraded far detector design could enable DUNE to shed light on the current 2 discrepancy between reactor and solar neutrino oscillation measurements. Liquid argon time projection chambers (LArTPCs) were chosen as primary detectors for the DUNE near and far detector complexes due to their excellent tracking and calorimetry performance. The far detector complex will consist of four multi-kt detectors\, whose baseline design is of semi-monolithic nature (arXiv:1807.10327)\, segmenting each module along the drift axis into multiple TPCs. In contrast a near detector LAr component needs to be fully segmented due to the high event rates present there. This motivated the development of ArgonCube\, a fully modular TPC concept\, alleviating high-voltage requirements\, reducing optical pile-up\, and providing ambiguity-free tracking and calorimetry by means of a pixelated charge readout. While near detector development is well on track\, we have recently made the case for an ArgonCube far detector design (arXiv:1908.10956). Full segmentation would alleviate high-voltage requirements drastically. Combined with the pixelated charge readout eliminating bulky wire frames\, the sensitive volume could be increased significantly. A pixelated charge readout providing true 3D tracking free from ambiguity would simplify event reconstruction. Reconstruction efficiency would no longer depend on the incident angle of an interaction\, enhancing sensitivity to isotropic events\, such as proton decay\, solar\, and supernova neutrinos. This talk will first introduce the ArgonCube concept\, and show how it addresses the DUNE near detector challenges. I will then focus on the potential of an ArgonCube far detector to enhance DUNE’s capabilities in regards to its secondary physics goals\, as well as the changes required compared to the near detector design.
URL:https://rpm.physics.lbl.gov/event/damian-goeldi-carleton-u-enhancing-the-physics-reach-of-the-dune-far-detector/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20200122T160000
DTEND;TZID=UTC:20200122T170000
DTSTAMP:20260413T230613
CREATED:20200121T225053Z
LAST-MODIFIED:20200121T225053Z
UID:1338-1579708800-1579712400@rpm.physics.lbl.gov
SUMMARY:Special RPM | Gregor Kasieczka (Hamburg U) "Faster\, Deeper\, Stronger: Machines Learn Particle Physics
DESCRIPTION:Abstract: \nMany experimental results from both particle and astrophysics hint that the Standard Model (SM) of particle physics cannot be a complete theory of Nature. However\, in its first years of operation\, the Large Hadron Collider at CERN was very successful in excluding large regions of parameter space for potential models beyond the SM. We present how deep learning can be used to search for deviations from the SM in a model independent way. Beyond searching for new physics\, we explore ways to increase the robustness and understanding of network decisions and show how generative models can speed up simulations.
URL:https://rpm.physics.lbl.gov/event/special-rpm-gregor-kasieczka-hamburg-u-faster-deeper-stronger-machines-learn-particle-physics/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20200123T160000
DTEND;TZID=UTC:20200123T170000
DTSTAMP:20260413T230613
CREATED:20200303T185612Z
LAST-MODIFIED:20200303T192144Z
UID:1367-1579795200-1579798800@rpm.physics.lbl.gov
SUMMARY:Michal Zamkovsky (CERN) "New result on K+→π+vv ̅ from the NA62 experiment"
DESCRIPTION:ABSTRACT:\n \nThe decay K+→π+vv ̅\, with a very precisely predicted branching ratio of less than 10exp(-10)\, is one of the best candidates to reveal indirect effects of new physics at the highest mass scales. The NA62 experiment at the CERN SPS is designed to measure the branching ratio of the K+→π+vv ̅ with a decay-in-flight technique. NA62 took data so far in 2016-2018. Statistics collected in 2016 allowed NA62 to reach the Standard Model sensitivity for K+→π+vv ̅\, entering the domain of 10-10 single event sensitivity and showing the proof of principle of the experiment. Thanks to the statistics collected in 2017\, NA62 surpasses the present best sensitivity. The analysis strategy is reviewed and the preliminary result from the 2017 data set is presented. \n 
URL:https://rpm.physics.lbl.gov/event/michal-zamkovsky-cern-new-result-on-k%e2%86%92%cf%80vv-%cc%85-from-the-na62-experiment/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
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END:VCALENDAR