Events

Unravelling the richness of dark sector by FASERnu (Please note time: 10:00am)

Aug. 27, 2020, 10:30 am
Yasaman Farzan, IPM
FASER\nu is a newly proposed experiment which will take data in run III of the LHC during 2021-2023. It will be located in front of the FASER detector, 480~m away from the ATLAS interaction point in the forward direction. Its main goal is to detect neutrinos of all flavors produced at the interaction point with... More »

Ensemble generation for lattice QFT using machine learning

Sept. 3, 2020, 2:30 pm
Tej Kanwar, MIT
Monte Carlo sampling is a powerful approach to computing observables in quantum field theories regularized on a discrete spacetime lattice (LQFT), which is necessary for example to study the non-perturbative behavior of QCD in the low-energy regime. The cost of drawing independent samples is a major bottleneck in such studies. I discuss recent work demonstrating... More »

Sequential Discontinuities of Scattering Amplitudes

Sept. 24, 2020, 2:30 pm
Hofie Sigridar Hannesdottir, Harvard
Scattering amplitudes are essential ingredients in theoretical predictions for collider experiments. In some cases, symmetries and other constraints can fix amplitudes completely, and hence conventional Feynman diagram computations are circumvented. The traditional cutting rules relate discontinuities across branch cuts of amplitudes to cuts through the corresponding Feynman diagrams. Here we probe the analytic structure further... More »