By Hamish Johnston in Waterloo, Canada
Caltech’s Maria Spiropulu has a great party trick. She can demonstrate the bizarre rotational property of a spin ½ particle using a full glass of water and a contortion of her arm without spilling a drop. This was just one of the many highlights of her talk about the future of experimental particle physics that she gave yesterday at the Convergence meeting here at the Perimeter Institute.
While Spiropulu doesn’t talk about spin in the above video, she does explain why she is looking forward to analysing data from the 13 TeV run of the Large Hadron Collider, where she is part of the CMS collaboration. So, what could Spiropulu and colleagues find when they dig into the vast amounts of data that CMS is currently producing? It just could be four more types of Higgs particle. To find out more watch the video.
Yes, if the Higgs potential has several minima (isomeric states), it may lead to the presence of several distinct Higgs scalar bosons. However, this multiplicity of Higgs, should also lead to multiple(in terms of mass) of top quarks and weak interaction bosons W, but there seems to be no sign of this.