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Did quarks and antiquarks form after baryons formed due to stretching of baryons by radiation pressure and quark confinement in QCD theory?
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The charge parity isn't defined for charged mesons, and we define the G-parity instead which is given by: $${G} \equiv {C} \exp{i\pi \tau_2}$$ However, I am stuck at how to apply it. For example, if ...
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The spin dependent interaction in hadrons can be given by $V_{A}(r) = \frac{1}{4}\left(\frac{1}{m_{q}^{2}} - \frac{1}{m_{\bar{q}}^{2}}\right)\left(\frac{V'_{V}(r) - V'_{S}(r)}{r}\right)\langle\vec{L}\...
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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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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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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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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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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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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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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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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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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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I am studying Lattice QCD and there are many papers mentioning "Parity partners". What does this term mean?
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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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PhysicsPerson
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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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