Higgs and the Scalar Particle Family
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Since CERN has managed to identify the HIggs particle, efforts have been made to understand its properties in relation to the expansion of the universe. New Scientist Magazine have highlighted some exciting research that is planned to find the potential siblings of the Higgs particle, that could explain the expansion of the Universe.
The article – The Higgs Bang (10 June 2017) highlights the theoretical model that surmises that the Higgs particle may have a sibling called the dilaton. This theory posited by Garcia-Bellido in the Physical Review vol 84, would explain the extreme expansion that occurred after the ‘big bang’. At the moment the non-zero mass of the Higgs particle requires a further examination. Scientists are puzzled as to why the Higgs has the mass it does, but the ‘dilaton’ particle would explain this.
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Some scientist have argued that this theory is too ‘contrived’ and have suggested that the Higgs particle is just one of a plethora of scalar particles that we know very little about. The New Scientist points to Veronica Sanz from Sussex University who believes that to see ‘the Higgs as mass -giver and inflaton is too contrived’ (New Scientist, 2017)
To help identify the dilaton particle, which could potentially be responsible for the expansion of the universe and dark matter, Garcia Bellido intends to analyse cosmic background microwaves. Such data will be retrieved in the future from The Simons Observatory, Japans forthcoming LiteBIRD satellite and the BICEP/Keck telescope at the South Pole. We may see the discovery of a regulator scalar particle or a whole host of particles belonging to the scalar family.
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