Journal
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
Volume 27, Issue 27, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217751X12501539
Keywords
Doubly heavy baryons; cascades; strong decays; superflavor symmetry; heavy quark symmetry; quark models
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Funding
- Department of Physics
- College of Arts and Sciences
- Office of Research at Florida State University
- U.S. Department of Energy [DE-SC0002615]
- U.S. Department of Energy (DOE) [DE-SC0002615] Funding Source: U.S. Department of Energy (DOE)
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The heavy diquark symmetry (HDS) of doubly heavy baryons (DHBs) provides new insights into the spectroscopy of these hadrons. We derive the consequences of this symmetry for the mass spectra and the decay widths of DHBs. We compare these symmetry constraints to results from a nonrelativistic quark model for the mass spectra and results from the P-3(0) model for strong decays. The quark model we implement was not constructed with these symmetries and contains interactions which explicitly break HDS. Nevertheless these symmetries emerge. We argue that the P-3(0) model and any other model for strong transitions which employs a spectator assumption explicitly respects HDS. We also explore the possibility of treating the strange quark as a heavy quark and apply these ideas to Xi, Xi(c) and Xi(b) baryons.
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