Chiral Lagrangian with heavy quark-diquark symmetry

Journal Article · Wed Mar 01 00:00:00 EST 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.73.054003· OSTI ID:20776850

Jie, Hu ^[1]; Mehen, Thomas ^[1]

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1. Department of Physics, Duke University, Durham, North Carolina 27708 (United States)

We construct a chiral Lagrangian for doubly heavy baryons and heavy mesons that is invariant under heavy quark-diquark symmetry at leading order and includes the leading O(1/m{sub Q}) symmetry violating operators. The theory is used to predict the electromagnetic decay width of the J=(3/2) member of the ground state doubly heavy baryon doublet. Numerical estimates are provided for doubly charm baryons. We also calculate chiral corrections to doubly heavy baryon masses and strong decay widths of low lying excited doubly heavy baryons.

• OSTI ID: 20776850
• Journal Information: Physical Review. D, Particles Fields, Vol. 73, Issue 5; Other Information: DOI: 10.1103/PhysRevD.73.054003; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B QUARKS
C QUARKS
CHARMED BARYONS
CHIRALITY
CORRECTIONS
GROUND STATES
LAGRANGIAN FUNCTION
MESONS
PARTICLE DECAY
PARTICLE WIDTHS
REST MASS
SYMMETRY
T QUARKS