Electromagnetic form factors of the $Λ$ and $Σ$ baryons in an alternative baryonic current approach - High Energy Physics - PhenomenologyReportar como inadecuado




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Abstract: Light-cone sum rules are used to investigate the electromagnetic form factorsof the $\Lambda$ and $\Sigma$ baryons by using the Ioffe type interpolatingcurrents. The sum rules are affected to some extent by the choice of theinterpolating currents from a comparison. Numerical calculations show that themagnetic form factor can be well fitted by the dipole formula for $\Sigma$ butnot for $\Lambda$. The magnetic form factor of $\Lambda$ approaches zero withthe momentum transfer faster than the dipole formula estimation.



Autor: Yong-Lu Liu, Ming-Qiu Huang

Fuente: https://arxiv.org/



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