Electromagnetic radiation of baryons containing two heavy quarks
Abstract
The two heavy quarks in a baryon which contains two heavy quarks and a light one, can constitute a scalar or axial vector diquark. We study electromagnetic radiations of such baryons, (i) (bc)1 -> (bc)0+γ, (ii) (bc)1* -> (bc)0+γ, (iii) (bc)0**(1/2, l=1) -> (bc)0+γ, (iv) (bc)0**(3/2, l=1) -> (bc)0+γ and (v) (bc)0**(3/2, l=2) -> (bc)0+γ, where (bc)0(1), *(bc)1 are S-wave bound states of a heavy scalar or axial vector diquark and a light quark, and (bc)0**(l is bigger than 1) are P- or D-wave bound states of a heavy scalar diquark and a light quark. Analysis indicates that these processes can be attributed into two categories and the physical mechanisms which are responsible for them are completely distinct. Measurements can provide a good judgment for the diquark structure and better understanding of the physical picture.
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.