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Results tagged with standard-model
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user 209730
A model of the basic particles and forces featuring six quarks, three charged leptons, three massless neutral leptons and four fundamental force carrying bosons. The twelve fermions are arranged into three generations, while the bosons serve to explain the electromagnetic interaction plus the strong and weak nuclear forces (and the Higgs mechanism). Do NOT use this tag for the standard model of cosmology, etc..
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Possible Feynman diagram for $\tau^+ \rightarrow p \mu^+ \mu^-$ and $\tau^+ \rightarrow \bar...
I want to know the possible Feynman diagram for these two lepton family, lepton and baryon number violating tau decays. These decays are forbidden in the Standard Model. But the further extension of t …
- 106
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Accepted
Possible reactions / decays in the standard model
To summarize, whether a reaction/decay is allowed or forbidden in the SM, the following laws/quantum numbers needs to be checked.
Energy, momentum and angular momentum
Charge conservation
Baryon nu …
- 106
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Experimental evidence of interaction out of thermal euilibrium?
Sakharov gave three conditions for the matter-antimatter asymmetry observed in the universe.
(1) Baryon number violation: Don’t have any experimental confirmation yet.
(2) C-symmetry and CP-symmetry …
- 106
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What are the basic ingredients in the Standard Model (SM) of particle physics? [closed]
What are the basic ingredients of the standard model (SM) and their applications?
- 106
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261
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What is the CKMFITTER plot?
I am struggling to understand the CKMFITTER plot which is attached here. Please, someone, try to explain to me what are all these color bands. What are their meanings? Why one band is circular in sha …
- 106