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New measurements of W bosons' mass at CERN
A lot of force is required to keep together the nucleus of each of the atoms which somewhat integrally are a part of the planet Earth, that force is created by many other forces, however at the larger scale the main one is made up by, as far as the standard model of particle physics (the one which was developed by the humans which in general are from and live on the surface of this planet Earth, the one in this universe which is only one of an infinity in this vast multiverse) states, represents and explains, the W bosons and the Z boson.
By that same standard model there are two types of W bosons specific and in this universe, each with its own charge, negative or positive, the charge being what makes them different in general. The two particles help keep the protons and neutrons stuck all-together. Also by that same standard model the W boson is the 4th heaviest particle detected by the same group of humans which developed said standard model of particle physics; and is responsible for the way many subatomic particles interact with one another and can change their properties.
(Image of the standard model of particle physics which is specified above. In the forces section you can detect two representations of the W bosons, in the framed regions where the letter W is written. Image from CERN's website.)
What was discovered
On the 23 March at the Recontres de Moriond conference, allegedly , the results were shown containing evidence more accurate than any previous results about the mass of the W bosons obtained by any human being on Earth and from Earth, that is published for the public to know, for the last 2 centuries besides 1 other, the last results from Fermilab's CDF experiment at the Tevatron , before it shut down in 2011; of course both the CDF experiment and the Tevatron shut down in 2011 but the CDF collaboration is still running.
On CERN's website it says that the detected mass of the W boson is equal to 80360 MeV with an uncertainty of 16 MeV and 10 MeV lower than the last ATLAS result, and 10% more precise than that other result. To attain this result ATLAS used an advanced technique for data-fitting to find the mass, and improved versions of the parton distribution functions for the proton, which describe the sharing of the proton's momentum amongst its constituent quarks and gluons.
What this result will directly contribute to
Shortly put, this result, as stated above, is the most precise one of the results which are stated above in the first paragraph of the "What was discovered" section, and that means that the value of the mass of the W bosons that the result has shown, is a better candidate for the mass of the W bosons recognized by the same standard model of particle physics which is mentioned above. By updating the recognized value of the mass of the W bosons by the same standard model mentioned above with the value from this result, new properties of the W bosons both theoretically and experimentally, many of those properties being how they interact with other subatomic particles.
Reference
CERN: Improved ATLAS result weighs in on the W boson | CERN (home.cern)
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