Polarization observables in e+e− annihilation to a baryon-antibaryon pair
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DOI: 10.1103/physrevd.99.056008
Abstract: Using the helicity formalism of Jacob and Wick we derive spin density matrices of baryon antibaryon pairs produced in $e^+e^-$ annihilation. We consider the production of pairs with spins $1/2+\overline{1/2}$, $1/2+\overline{3/2}$ (+c.c.) and $3/2+\overline{3/2}$. We… read more here.
Keywords: annihilation; observables annihilation; baryon antibaryon; annihilation baryon ... See more keywords
Heavy baryon-antibaryon molecules in effective field theory
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DOI: 10.1103/physrevd.99.074026
Abstract: We discuss the effective field theory description of bound states composed of a heavy baryon and antibaryon. This framework is a variation of the ones already developed for heavy meson-antimeson states to describe the X(3872)… read more here.
Keywords: effective field; field theory; baryon antibaryon; heavy baryon ... See more keywords