Doubly heavy hadrons and the domain of validity of doubly heavy diquark--anti-quark symmetry

Details Doubly heavy hadrons and the domain of validity of doubly heavy diquark--anti-quark symmetry Doubly heavy hadrons and the domain of validity of doubly heavy diquark--anti-quark symmetry

2006-06-07

arxiv.org/abs/hep-ph/0606084v3

Phys.Rev.D74:094003,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages

Scientific paper

10.1103/PhysRevD.74.094003

In the limit of heavy quark masses going to infinity, a symmetry is known to emerge in QCD relating properties of hadrons with two heavy quarks to analogous states with one heavy anti-quark. A key question is whether the charm mass is heavy enough so that this symmetry is manifest in at least an approximate manner. The issue is crucial in attempting to understand the recent reports by the SELEX Collaboration of doubly charmed baryons. We argue on very general grounds that the charm quark mass is substantially too light for the symmetry to emerge automatically via colour coulombic interactions. However, the symmetry could emerge approximately depending on the dynamical details.

Affiliated with

Also associated with

No associations

Rating

Doubly heavy hadrons and the domain of validity of doubly heavy diquark--anti-quark symmetry does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Doubly heavy hadrons and the domain of validity of doubly heavy diquark--anti-quark symmetry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Doubly heavy hadrons and the domain of validity of doubly heavy diquark--anti-quark symmetry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-698216