Questions tagged [hadron-dynamics]
The hadron-dynamics tag has no usage guidance.
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What is the meaning of dynamically generated states in particle physics?
In hadron spectroscopy, a structure may be interpreted as various "configurations", such as conventional quark-antiquark states, tetraquarks, hybrid states, dynamically generated states or ...
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Charge conjugation and Transition form factors
Let us consider the transition form factor of proton to Delta (see reference of https://doi.org/10.1103/PhysRevD.100.034001):
$\gamma^{\ast}p \to \Delta$.
Then we should also have the timelike ...
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Beyond sexaquarks?
There are some candidates for tetraquarks, pentaquarks or even now sexaquarks/hexaquarks. But, I wonder, what are the highest molecular quark states taking into account QCD? Are there heptaquarks, ...
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Theoretical calculation for deuterium tritium fusion
How would a deuterium-tritium fusion feynmann diagram look like in terms of QHD (i.e meson exchange like eta,pi,sigma,omega,...)? I couldn't find anything online whilst this would be quite an ...
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Meson-Meson Scattering Data
Recently, I have been interested in the scattering amplitudes of mesons in the high-energy fixed-angle regime. I have come across a simple result, due to Brodsky et al., that predicts the scaling of ...
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If massless objects ALWAYS travel at the speed of light and gluons are massless, how are they trapped within hadrons without a need for event horizon?
From what I heard, unless we have some kind of other influence, all things and light move at the straight lines in spacetime. If they have a mass, then they can never reach the speed of light, but all ...
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Can you rewrite the QCD lagrangian in terms of hadron?
Is it possible to (exactly) rewrite the QCD lagrangian in terms of hadrons?
I get that it's probably practically too difficult to do, but would it be possible in principle?
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Is Santilli's hadronic mechanics sound and useful? [closed]
I'm a mathematician. Some math papers and books related to mutation algebras (a kind of nonassociative algebras which are Lie-admissible), and even an entry in the Encyclopedia of Mathematics (Lie-...
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The elusive graviton particle. Why does Hadron colider fail to find this elusive particle. It does exist but i think method for finding it is wrong [closed]
Why does Hadron colider fail to find this elusive particle. It does exist but i think method for finding it is floored.i think that trying to find it by collision is a floored method. My theory is ...
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Non-relativistic quark model, baryon masses and potential
Is there a simple non-relativistic quark model, based on which baryon masses, especially for the nucleon and the Delta resonance can be calculated?
What is a reasonable non-relativistic potential? Is ...
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What are hadron parity partners?
I am studying Lattice QCD and there are many papers mentioning "Parity partners". What does this term mean?
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How to calculate the branching fraction of hadrons? Or good resources on chiral perturbation theory
I am wondering how I could calculate branching ratios (or any effective diagram) for various hadrons. In particular I am interested in a rare pion decay via a virtual photon:$\pi^0\to \gamma \gamma^* \...
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Form Factors in Particle Physics
I am having trouble understanding how people parameterise hadronic matrix elements in terms of form factors. For example the decay of a pseudoscalar B to a vector meson:
$$ \langle V(k, \eta) | \bar q ...
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Is there a differential equation describing the wavefunction of a hadron?
In Newtonian Physics there's a differential equation describing the motion of multiple bodies in orbit around each other. In non relativistic quantum mechanics there's a differential equation ...
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How to draw Feynman diagram of quark decaying to more than three quarks (weak), and tell if it's Cabibbo-allowed/supressed?
I have problems when it comes to drawing Feynman diagrams that involve weak decays creating more than two quarks. So I hope one of you can help me clarify. let's consider the following problem:
Will ...
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