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Lepton Universality In Question, a Standard Model Assumption
Charliemopps writes: "Over the past few years, more and more experiments have started to question one of the core assumptions of the standard model: Lepton Universality. Simply put, the weak nuclear force is assumed to work equally on all Leptons (electron, muon and tau). Two years ago The Babar experimental collaboration reported that measurements indicated this may not have been the case. But the measurements were not accurate enough to be definitive.
Now, a report from The LHC shows that they have analyzed their entire dataset of proton-proton collisions and found a rather large discrepancy. These measurements are still not all that accurate. These decays happen so rarely that even with this huge data set there is still about a 1% change they are incorrect. One explanation for such measurements is an as-yet-undiscovered, charged Higgs particle. It would have to be extremely heavy: greater than 109GeV possibly even as high as 150GeV. This is predicted by some models outside of the Standard Model, like Supersymmetry."
Now, a report from The LHC shows that they have analyzed their entire dataset of proton-proton collisions and found a rather large discrepancy. These measurements are still not all that accurate. These decays happen so rarely that even with this huge data set there is still about a 1% change they are incorrect. One explanation for such measurements is an as-yet-undiscovered, charged Higgs particle. It would have to be extremely heavy: greater than 109GeV possibly even as high as 150GeV. This is predicted by some models outside of the Standard Model, like Supersymmetry."
A new theory that will require an even more massive supercollider to prove or disprove!
#DeleteChrome
I know most people think of molecules, atoms, nucleus, neutrons, quarks, leptons, etc., are all precisely the same across all similar items. But they are not.
Two hydrogen atoms are completely unique to one another but it is harder to measure the differences than larger items because of the difference in scale and since they both generally behave the same way no on cares to explore their uniqueness until the difference is noticeable and worth exploration.
We know this to be true because nothing can be perfectly split and if nothing can be perfectly split then there cannot be two particles that are exactly the same. If a single particle cannot be split into two equal particles, then no two combination of particles can produce the same unique item again. Therefore, all particles must be truly and absolutely unique in some fashion.
So, the idea that contrary leptons can be symmetric is absurd.