Week 11.05.2019 – 19.05.2019

Monday

Quo Vadis: colliders?

Regular Seminar Rohini Godbole (Indian Institute of Science)

at:
15:00 QMW
room G O Jones 610
abstract:

After a summary of current status of experimental results in particle physics, including the presentation of what I call the LHC paradox, I will discuss briefly how colliders were indispensible in arriving at this point of the journey. After this I would discuss what the next steps are: as to where do we go from here in the story of collider physics. If time is left, I will discuss some of the issues that the future colliders can address , by taking examples from the known unknowns, viz. in the framework of particular BSM models and also the unknown unknowns viz the model independent approach.

Wednesday

TBA

Regular Seminar Vasileios Niarchos (Durham)

at:
14:00 IC
room H503
abstract:

Thursday

On Integrable Subsectors of AdS/CFT and LLM geometries

Regular Seminar Jaco van Zyl (Witwatersrand U.)

at:
14:00 QMW
room G O Jones 610
abstract:

The 1/2 BPS and regular LLM geometries are formed from the backreaction of a large number of D-branes on AdS_5 x S^5. The dual N=4 SYM operator to this configuration, and excitations thereof, thus lie outside of the planar limit of the theory. Explicitly the operators dual to these geometries are Schur polynomials labelled by a Young diagram with O(N^2) boxes and excitations of this configuration are restricted Schur polynomials obtained by adding boxes (and restriction labels) to this diagram. A special class of these geometries are labelled by Young diagrams with O(1) well separated corners. In the large N limit excitations localised at any one of these corners only mix with each other which is a major simplification. A recent proposal has argued that the large N dynamics of these operators is isomorphic to that of planar N=4 SYM and thus represents an integrable subsector of N=4 SYM. In this talk this proposal is reviewed and aspects of the weak and strong coupling evidence presented.