University of Birmingham > Talks@bham > Particle Physics Seminars > Search for Higgs Pair Production in the gamma gamma b b Final State at ATLAS

## Search for Higgs Pair Production in the gamma gamma b b Final State at ATLASAdd to your list(s) Download to your calendar using vCal - Nansi Andari (CERN)
- Wednesday 25 November 2015, 13:30-14:30
- Small Lecture Theatre (S06, Poynting [R13]).
If you have a question about this talk, please contact Prof Ian Kenyon. The Higgs boson pair production provides the possibility of studying the trilinear Higgs couplings at future high-energy colliders. However new physics can significantly enhance the rate of this production which makes this topic one of the most important searches to be performed with Run II data at LHC . The ATLAS collaboration already published searches with Run I data using 20fb-1 of pp collisions at 8 TeV. One of the most promising final states, hh → γγbb, shows an excess of the order of 2.4 sigmas in its non-resonant search. A 95 % confidence level upper limit on the cross section times branching ratio of non-resonant production is set at 2.2 pb, while the expected limit is 1.0 pb. The corresponding limit observed for a narrow resonance ranges between 0.7 and 3.5 pb as a function of its mass. The seminar will cover the details of this analysis in particular. This talk is part of the Particle Physics Seminars series. ## This talk is included in these lists:Note that ex-directory lists are not shown. |
## Other listsPIPS - Postgraduate Informal Physics Seminars Applied Mathematics Seminar Series Chemical Engineering Research Seminar Series## Other talksAn Introduction to Quasi-graphic matroids Route to Hyperspectral Terahertz Microscopy via Nonlinear Ghost-Imaging Topology and Dynamics of Intracellular Networks for Cellular Decision Making TBA Measurement induced phase transition in a monitored fermion chain Gaussian processes techniques for non-linear multidimensional dynamical systems |