A first estimate of triply heavy baryon masses from the pNRQCD perturbative static potential

TL;DR

This paper estimates the masses of triply heavy baryons using perturbative pNRQCD potentials and a three-body variational approach, providing predictions for the Omega_ccc baryon mass and suggesting experimental search strategies.

Contribution

It introduces a calculation of triply heavy baryon masses at NNLO pNRQCD, emphasizing the small impact of three-body interactions and offering a specific mass prediction for Omega_ccc.

Findings

Omega_ccc mass predicted as 4900(250) MeV

Three-body interaction contribution is about 25 MeV

Proposes experimental search at B factories

Abstract

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 Omega_ccc baryon mass is 4900(250) 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.