https://doi.org/10.1140/epjc/s10052-012-2019-9
Regular Article - Theoretical Physics
A first estimate of triply heavy baryon masses from the pNRQCD perturbative static potential
Departamento de Física Teórica I, Universidad Complutense, 28040, Madrid, Spain
* e-mail: fllanes@fis.ucm.es
Received:
16
December
2011
Revised:
20
April
2012
Published online:
3
June
2012
Within pNRQCD we compute the masses of spin-averaged triply heavy baryons using the now-available NNLO pNRQCD potentials and three-body variational approach. We focus in particular on the role of the purely three-body interaction in perturbation theory. This we find to be reasonably small and of the order 25 MeV. Our prediction for the Ω ccc baryon mass is 4900(250) MeV in keeping with other approaches. We propose to search for this hitherto unobserved state at B factories by examining the end point of the recoil spectrum against triple charm.
© Springer-Verlag / Società Italiana di Fisica, 2012
