UCL HEP Seminars
Seminars are generally held at 4pm on Fridays in room A1 on the top floor of the physics department
A calendar of all seminars in the Physics Department
is available on the Physics Events Calendar page.
If you use Google Calendar or similar, such as Apple iCal, it is possible to subscribe to this calendar via: XML, ICAL or HTML.
Please send suggestions for topics and/or speakers to Andreas Korn and Lucian Harland-Lang.
31/03/2017 Andreas Warburton (McGill/[UCL])
Searches for New Physics on the Intensity Frontier: The Belle II Experiment
The Belle II collaboration comprises over 600 physicists from 23 countries building a detector on the high-luminosity SuperKEKB electron-positron collider in Japan. The detector, a successor to the successful BaBar and Belle experiments, has capabilities complementary to efforts with similar goals at the LHC and is the latest experimental tool in the now three-decade-long B-factory era. I will outline the prospects for discoveries of new physics at Belle II and discuss the latest status and schedule of the accelerator and detector upgrades, currently in progress.
07/04/2017 Luise Skinnari(Cornell)
Track-triggering at CMS for the High-Luminosity LHC
The high luminosity upgrade of the LHC, scheduled for 2024-2025, will increase the luminosity by a factor of 10 beyond the original LHC design. The resulting large datasets will allow precise measurements of Higgs properties, searches for rare processes, and much more. To cope with the challenging environment from the high luminosity, significant upgrades will be required for the LHC experiments. A key upgrade of the CMS detector is to incorporate tracking information in the hardware-based trigger. We are exploring different strategies for performing the hardware-based track finding, including a fully FPGA-based approach. I will give an overview of the CMS track trigger upgrade, describe its expected performance, and show results from developments of a hardware demonstrator system.
21/04/2017 : Jonas Lindert (IPPP Durham)
High-precision predictions for V+jet production
In LHC searches for Dark Matter one of the dominant systematic uncertainties arises from the determination of the irreducible Z(->vv)+jet background. The modelling of this background relies on accurate measurements of V+jet production processes with visible final states and their extrapolation to the signal region via a global fit based on high-precision Standard Model predictions for pp->W+jets, pp->Z+jets and pp->gamma+jets including higher-order QCD and EW corrections. I will present such predictions with a focus on the mandatory determination of robust estimates of remaining theoretical uncertanties at the percent level and their correlation amongst processes.