Questions tagged [particle-physics]
Particle physics is the study of the fundamental forces of nature as they are embodied in the interactions of elementary and composite particles at high energies and short time and distance scales. DO NOT USE THIS TAG for point particles in classical mechanics.
7 questions from the last 30 days
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Conservation of Energy or also Number of Atoms?
For those who are experts in science or quantum science, I want to ask, has the number of atoms in the universe from the beginning until now stayed the same or could it have increased? As far as I ...
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Does the antimatter Lambda-Beauty baryon decay into fewer or lighter antimatter particles than the regular version does into matter particles?
I am having a little trouble understanding the recent famous 2025 results from LHCb...
They say the antimatter version of the beauty-containing $Λ$ baryon decays along a specific path about 2.45% less ...
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The Higgs Field of Dreams. To good to be true? [closed]
Essentially, I’ve proposed an alternative to the Higgs Field that has triplets instead of couplets. The conversion (which I’m currently fine tuning the calculations for) potentially produces a third ...
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Simulation dependence of results in Pythia8
Let's suppose I want to study the decay and hadronization into stable particles (infinitely long lived) of a particle, for example the Higgs. I want to use Pythia8 and for what I could understand I ...
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Unstable Leptons: How are their rest masses (energies) calculated?
Six different leptons are known. Of these, two are unstable: the muon and tau lepton.
According to experimentally obtained data, the rest masses (energies) of these elementary particles are equal to ...
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Energy transfer rate from a frozen high-amplitude scalar field through a small mixing angle coupling
I'm trying to understand the energy transfer dynamics of an ultralight scalar field in the following regime and haven't been able to find literature that addresses it directly.
Consider a scalar field ...
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Charge neutralization and photon emission
If we shoot an electron at a positive ion too heavy for the electron to move, and also the electron can not cause another particle to be knocked out unlike X-ray emission, instead it will neutralize ...
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