Role of hyperfine mixing in b→c semileptonic decays of doubly-heavy baryons

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E. Hernandez and J. Nieves. Role of hyperfine mixing in b→c semileptonic decays of doubly-heavy baryons[J]. Chinese Physics C, 2010, 34(9): 1488-1490. doi: 10.1088/1674-1137/34/9/080
E. Hernandez and J. Nieves. Role of hyperfine mixing in b→c semileptonic decays of doubly-heavy baryons[J]. Chinese Physics C, 2010, 34(9): 1488-1490.  doi: 10.1088/1674-1137/34/9/080 shu
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Received: 2010-02-09
Revised: 1900-01-01
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Role of hyperfine mixing in b→c semileptonic decays of doubly-heavy baryons

Abstract: 

We analyze the effects of hyperfine mixing in b→c semileptonic decays of doubly heavy baryons. We qualitatively confirm the results by W. Roberts and M. Pervin in Int. J. Mod. Phys. A, 2009, 24: 2401—2413, finding that mixing has a great impact on those transitions. However, predictions without mixing differ by a factor of 2 and this discrepancy translates to the mixed case where large differences in decay widths are observed between the two calculations.

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