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An Estimate of the Inclusive Branching Ratio to B_c in Ξ_(bbq) Decay

Ridgway, Alexander K. and Wise, Mark B. (2019) An Estimate of the Inclusive Branching Ratio to B_c in Ξ_(bbq) Decay. Physics Letters B, 793 . pp. 181-184. ISSN 0370-2693. doi:10.1016/j.physletb.2019.04.020.

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We estimate the branching ratio for the inclusive decays Ξ_(bbq) → B^((∗))_c+X_(c,s,q) to be approximately 1%. Our estimate is performed using non-relativistic potential quark model methods that are appropriate if the bottom and charm quarks are heavy compared to the strong interaction scale. Here the superscript (∗) denotes that we are summing over spin zero B_c and spin one B^∗_c mesons and the subscript q denotes a light quark. Our approach treats the two bottom quarks in the baryon Ξ_(bbq) as a small color anti-triplet. This estimate for the inclusive branching ratio to B_c and B^∗_c mesons also holds for decays of the lowest lying T_(bbqq) tetraquark states, provided they are stable against strong and electromagnetic decay.

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Additional Information:© 2019 Published by Elsevier B.V. This is an open access article under the CC BY license ( Funded by SCOAP3. Received 21 March 2019, Accepted 8 April 2019, Available online 11 April 2019. This work was supported by the by DOE Grant DE-SC0011632. We are also grateful for the support provided by the Walter Burke Institute for Theoretical Physics. We thank Zoltan Ligeti for informing us of the work of Gershon and Poluektov. MBW also thanks Tim Gershon for discussions.
Group:Walter Burke Institute for Theoretical Physics
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Department of Energy (DOE)DE-SC0011632
Walter Burke Institute for Theoretical Physics, CaltechUNSPECIFIED
Record Number:CaltechAUTHORS:20190312-142253295
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Official Citation:Alexander K. Ridgway, Mark B. Wise, An estimate of the inclusive branching ratio to B¯c in Ξbbq decay, Physics Letters B, Volume 793, 2019, Pages 181-184, ISSN 0370-2693, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:93742
Deposited By: Tony Diaz
Deposited On:12 Mar 2019 21:27
Last Modified:16 Nov 2021 17:00

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