Abstract
By analogy with potential nonrelativistic QCD, we construct effective field theories suitable to describe the heavy-quark sector of baryons made of two and three heavy quarks. A long-standing discrepancy between the hyperfine splitting of doubly heavy baryons obtained in the heavy-quark effective theory and potential models is solved. The one-loop matching of the 4-quark operators of dimension 6 is provided.
| Original language | English |
|---|---|
| Article number | 034021 |
| Pages (from-to) | 1-17 |
| Number of pages | 17 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 72 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1 Aug 2005 |
| Externally published | Yes |
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