Researchers have decreased the uncertainty of their estimate of the mass of the Higgs boson, the particle thought to bestow mass to matter.
The ATLAS collaboration, one of two teams that detected the Higgs at the Large Hadron Collider near Geneva, Switzerland, reanalysed data and improved detector calibration to come up with the revised mass of 125.36 gigaelectronvolts (GeV), with a systematic uncertainty of 0.18 GeV — an improvement by a factor of three.
The measurement will refine predictions of the Higgs' behaviour and help to identify potential phenomena not predicted by the standard model of physics, the team says.
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Better estimate of Higgs mass. Nature 513, 283 (2014). https://doi.org/10.1038/513283b
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DOI: https://doi.org/10.1038/513283b
