Proton Neutron

The Radii of Baryons

A new paper, which calculates the radii of all baryon levels, was recently  published in the Journal of Nuclear and Particles Physics. For viewing the paper, please click here or here.

Confirmation of the Mass Formula for Baryons

On January 5, 2013, the CDF Collaboration reported the “Evidence for the bottom baryon resonance state Λb*0 with the CDF II detector”, arXiv:hep-ex 1301.0949. According to CDF its mass is about 5.92 GeV/c2.

This level of Λb0 had been predicted in the paper Calculation of almost all energy levels of baryons, listed on the publication list. Its predicted mass is 5.93 GeV/c2, just 0.17% off. Please, take a look at this paper with its erratum (click here for the erratum). You can also get the paper from Academia through this  link.

As it said in the paper, the formula does not apply to hadronic molecules. Thus it does not apply to the recently found levels by LHCb  Xi_b’ and Xi_b* . Please, find their paper through this link. The mass of the baryon Xi_b0  is nicely described by the formula.