ACP Seminar (Astronomy - Cosmology - Particle Physics)

Speaker: Andrew Gerard Akeroyd (U Southanpton)
Title: Decay of charged Higgs bosons into charm and bottom quarks in multi-Higgs doublet models
Date (JST): Wed, Apr 16, 2014, 13:30 - 15:00
Place: Seminar Room A
Related File: 1131.pdf
Abstract: A scalar particle has been discovered at the Large Hadron Collider (LHC), but it is not yet known if this particle corresponds to the Higgs boson of the Standard Model or if it is the first of many Higgs bosons which are waiting to be discovered. Higgs bosons with electric charge ("charged Higgs bosons" or "charged scalars") are predicted in many extensions of the Standard Model. Searches for such particles are being carried out at the LHC, in particular in the decays of the top quark, and these searches assume that two specific decay modes of the charged Higgs boson are dominant: In this talk I show that a third decay mode, into charm and bottom quarks, can be dominant in models with more than two Higgs isospin doublets. So far there has been no dedicated search for this decay to charm and bottom quarks at the LHC, but it could readily be performed as an extension of an ongoing search which assumes that the charged Higgs boson decays into a charm quark and a strange quark.