Semileptonic bc to cc and bb to bc baryon decays and heavy quark spin symmetry

J.M. Flynn; E. Hernandez

doi:10.1088/1674-1137/34/9/043

Chinese Physics C> 2010, Vol. 34> Issue(9) : 1364-1367 DOI: 10.1088/1674-1137/34/9/043

Semileptonic bc to cc and bb to bc baryon decays and heavy quark spin symmetry

J.M. Flynn ,
E. Hernandez

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Abstract：
We study the semileptonic decays of the lowest-lying bc baryons to the lowest-lying cc baryons (Ξ_bc^(′*)→Ξ_cc^(*) and Ω_bc^(′*)→Ω_cc^(*)) , in the limit m_b, m_c>>Λ_QCD and close to the zero recoil point. The separate heavy quark spin symmetries make it possible to describe all these decays using a single form factor. We also show how these constraints can be used to test the validity of different quark model calculations. bb to bc baryon decays are also discussed.

References

[1]

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J.M. Flynn and E. Hernandez. Semileptonic bc to cc and bb to bc baryon decays and heavy quark spin symmetry[J]. Chinese Physics C, 2010, 34(9): 1364-1367. doi: 10.1088/1674-1137/34/9/043

J.M. Flynn and E. Hernandez. Semileptonic bc to cc and bb to bc baryon decays and heavy quark spin symmetry[J]. Chinese Physics C, 2010, 34(9): 1364-1367. doi: 10.1088/1674-1137/34/9/043 shu

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Received: 2010-02-09
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Semileptonic bc to cc and bb to bc baryon decays and heavy quark spin symmetry

Received Date: 2010-02-09

Accepted Date: 1900-01-01

Available Online: 2010-09-05

Abstract:

We study the semileptonic decays of the lowest-lying bc baryons to the lowest-lying cc baryons (Ξ_bc^(′*)→Ξ_cc^(*) and Ω_bc^(′*)→Ω_cc^(*)) , in the limit m_b, m_c>>Λ_QCD and close to the zero recoil point. The separate heavy quark spin symmetries make it possible to describe all these decays using a single form factor. We also show how these constraints can be used to test the validity of different quark model calculations. bb to bc baryon decays are also discussed.

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Semileptonic bc to cc and bb to bc baryon decays and heavy quark spin symmetry

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Semileptonic bc to cc and bb to bc baryon decays and heavy quark spin symmetry

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