All Questions
Tagged with quantum-chromodynamics mesons
6
questions with no upvoted or accepted answers
2
votes
0
answers
66
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Mass of the kaon (1460)
When looking at the particle listing in PDG most of the hadron masses and excitation include an experimental error. But this is not the case for the Kaon (1460), does anybody know why? This means the ...
- 21
2
votes
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87
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Vector mesons as background gauge fields
Suppose we have some complicated fundamental theory of fermions and gauge fields which involves global chiral symmetry and global anomalies which breaks some subgroup of this symmetr. At some energy ...
- 8,901
2
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504
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Mass and wave function renormalization In chiral perturbation theory
Before I put forward my actual question, I think it will be useful to set the context in a clear way and that involves my understanding of a few very basic things of Chiral Perturbation Theory.
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- 407
1
vote
0
answers
269
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Understanding some lines from 't Hooft's paper on large-N QCD in 1+1d
In 't Hooft's paper "A two-dimensional model for mesons", the author shows that two-dimensional (1+1) QCD in the large-N limit interestingly gives a theory of mesons. 't Hooft calculates the "mesonic ...
- 5,371
1
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0
answers
39
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vector mesons identified with positive parity
I have seen in some sources (like in https://arxiv.org/abs/1610.06090, page 11, footnote 11 but also in some few more) that vector mesons are assigned with positive parity $(J^P)=1^+$. In Particle ...
1
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0
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65
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How to calculate D0->K+K- decay with QCD factorization?
I am studying the decay of D0->K+K- and I calculated the result of Branching Ratio by Naive QCD and I wrote all the equations for amplitude and branching Ration and Hamiltonian and... for this decay ...
