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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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TZOFFSETFROM:-0800
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DTSTART:20170312T100000
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DTSTART;TZID=America/Los_Angeles:20170815T160000
DTEND;TZID=America/Los_Angeles:20170815T170000
DTSTAMP:20260421T123732
CREATED:20170724T085023Z
LAST-MODIFIED:20170724T085023Z
UID:569-1502812800-1502816400@rpm.physics.lbl.gov
SUMMARY:Tova Holmes (ATLAS) "The FTK: Global Tracking for the ATLAS Trigger"
DESCRIPTION:Abstract: \nThe ATLAS Detector is in the process of upgrading its Trigger and Data Acquisition system to include global processing of tracks using the FastTracKer (FTK). The FTK uses a parallelized structure to identify and reconstruct the properties of tracks from the 98 million channels of the the ATLAS silicon detectors. With the use of hardware-level pattern matching and a two-tiered track-fitting system\, this reconstruction can be performed on all events passing the first-stage ATLAS trigger\, with a rate up to 100 kHz and requiring less than 100 µs per event. These capability opens new doors for b-jet and tau triggering\, allows for the suppression of pile-up effects on missing energy triggers\, and can even be used to isolate BSM signatures involving long-lived particles. This talk will discuss the physics case for the FTK\, an overview of its design\, and its integration status.
URL:https://rpm.physics.lbl.gov/event/tova-holmes-atlas-tba/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170817T160000
DTEND;TZID=America/Los_Angeles:20170817T170000
DTSTAMP:20260421T123732
CREATED:20170724T084928Z
LAST-MODIFIED:20170724T084928Z
UID:567-1502985600-1502989200@rpm.physics.lbl.gov
SUMMARY:Larry Lee (Harvard) "Searches for Sneaky SUSY at the ATLAS Experiment"
DESCRIPTION:ABSTRACT:\nDespite the lack of a sparticle discovery at the Large Hadron Collider\, and despite the fact that most of the discovery potential has shriveled to an upsetting size\, supersymmetry (SUSY) remains the most motivated solution to the Standard Model’s inadequacies. Because of this (and a large dose of stubbornness)\, we are forced to consider ways the nominal search strategy may have missed a discovery. Must SUSY present itself with lots of high-momentum objects and large missing transverse energy just because it’d be easy to find? This talk will discuss recent SUSY searches at ATLAS targeting signatures without large missing transverse energy as well as those sensitive to long-lived sparticles.
URL:https://rpm.physics.lbl.gov/event/larry-lee-harvard-tba/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20170831T160000
DTEND;TZID=America/Los_Angeles:20170831T170000
DTSTAMP:20260421T123732
CREATED:20170824T081430Z
LAST-MODIFIED:20170824T081430Z
UID:620-1504195200-1504198800@rpm.physics.lbl.gov
SUMMARY:Ben Nachman (LBNL) and Mateus Ploskon (LBNL) "Jet Substructure"
DESCRIPTION:ABSTRACT:\nThe LBNL xTalk (“cross-talk”) series provides a forum for the exchange of ideas between groups and across lab divisions.  Each seminar is focused on a theme which is confronted from two perspectives.  In particular\, the talks are given by two presenters from different domains. The format is informal (chalk talk!) and is designed to be entertaining and engaging.  Come prepared to learn and ask about details with the experts in order to stimulate collaborations between groups.  We hope that this will strengthen the program at the lab and spread new ideas.\nFor the first xTalk\, we will have Mateusz Ploskon from Nuclear Science and Benjamin Nachman from the Physics Division to discuss how jet substructure is used in ALICE/STAR and in ATLAS. Jets are collimated sprays of particles resulting from quarks and gluons produced at high energy. The radiation pattern within jets encodes a wealth of information about the parton that initiated it. Jet substructure is a hot topic in pp for tagging boosted W/Z/H bosons and also recently for precision probes of Quantum Chromodynamics (QCD); in heavy ion collisions\, jet substructure is an exciting new probe of medium modifications. Please join us for this comparative discussion of how jet substructure is used in two very different environments!\n \n\n 
URL:https://rpm.physics.lbl.gov/event/ben-nachman-lbnl-crosscut-seminar-jet-substructure/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
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