Speaker
Kateryna Radchenko Serdula
(DESY)
Description
In my talk, I will show that potentially large higher-order corrections to the trilinear Higgs coupling in Beyond the Standard Model (BSM) scenarios could enhance the interference effects between the non-resonant contribution to Higgs pair production and a resonantly produced heavy scalar. These interference effects have a significant impact on the expected shape of the differential cross section and the value of the total cross section, altering the predictions in the regions currently accessible to experiments. I will demonstrate that neglecting the interference between the contributions from heavy Higgs resonances and non-resonant (background) diagrams, as done by experimental collaborations, can lead to unreliable exclusion limits.
Authors
Georg Ralf Weiglein
(Deutsches Elektronen-Synchrotron (DE))
Kateryna Radchenko Serdula
(DESY)
Milada Margarete Mühlleitner
Sven Heinemeyer
(CSIC (Madrid, ES))
