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HEP Seminars

05 Dec 2016

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.

Upcoming Seminars

NOTE UNUSUAL DAY!: 14/12/2016 Prof. Un-Ki Yang (Seoul National Univ.)

Searches for heavy neutrinos at the LHC

Heavy neutrinos occur in various extensions of the Standard Model (SM) and may explain the observed small masses of the SM neutrinos via several possible variants of the seesaw mechanism. We present results on searches for heavy neutrinos at the LHC. Searches are performed in the dilepton+jets channel and the trilepton channel, and results are interpreted in terms of the Left-Right Symmetrical model, Type-I, and the Type-III seesaw mechanism.

[slides]

16/12/2016 Eric Jansen (CMCC)

Numerical ocean modelling and the case of MH370

In this seminar I will take you on a small excursion into the world of numerical ocean modelling, and more specifically: data assimilation. The field of ocean data assimilation is concerned with updating ocean forecasts using daily observations of the ocean state in order to produce more accurate forecasts for the next day. Observations are incredibly diverse: buoys and moorings that measure time-series in a specific location, autonomous vehicles that can dive and resurface, coastal radar systems that measure currents, but also satellite measurements of the sea surface. I will discuss how we can assimilate these observations using a Kalman filter technique, applied to an ensemble of ocean model realisations. The second part of the seminar will focus on how we can apply these ocean models to a real-world problem: the disappearance of flight MH370. Malaysia Airlines flight 370 was a commercial flight from Kuala Lumpur to Beijing, which vanished without a trace in March 2014. It is believed to have crashed somewhere off the west-coast of Australia, but despite extensive search operations the main wreckage was never found. Now, more than two years later, parts belonging to the aircraft are found 4000km away on the African coast. How can we use this information to locate the crash site?

[slides]