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- W4320921641 abstract "Abstract Z -boson decay provides a good opportunity to search for the <?CDATA $ Xi_{bQ} $?> baryon because a large number of its events can be collected at high energy colliders. In this paper, we perform a complete investigation of the indirect production of the <?CDATA $ Xi_{bc} $?> and <?CDATA $ Xi_{bb} $?> baryons via the Z -boson decay process <?CDATA $ Zto Xi_{bQ}+bar b +bar Q $?> with a <?CDATA $ Q= (c,b) $?> quark under the NRQCD factorization approach. After considering the contribution from the diquark states <?CDATA $ langle bcrangle[^3S_1]_{bar 3/6} $?> , <?CDATA $ langle bcrangle[^1S_0]_{bar 3/6} $?> , <?CDATA $ langle bbrangle [^1S_0]_6 $?> , and <?CDATA $ langle bbrangle[^3S_1]_{bar 3} $?> , the calculated branching fractions are <?CDATA $ {cal B}(ZtoXi_{bc}+X) = 3.595times 10^{-5} $?> and <?CDATA $ {cal B}(ZtoXi_{bb}+X) = 1.213times 10^{-6} $?> . Furthermore, the <?CDATA $ Xi_{bc} $?> and <?CDATA $ Xi_{bb} $?> production events are predicted to be of the order of <?CDATA $ 10^4 $?> and <?CDATA $ 10^3 $?> at the LHC collider, and the order of <?CDATA $ 10^7 $?> and <?CDATA $ 10^6 $?> for the CEPC collider. We then estimate the production ratio for <?CDATA $ Zto cbar c(bbar b)toXi^{+,0}_{bc}+X $?> with <?CDATA $ Xi^{+,0}_{bc} to Lambda^+_c $?> in Z -boson decay, that is, <?CDATA $ {cal R}(Zto cbar ctoXi^{+,0}_{bc}+X) sim {cal O}(10^{-6}) $?> and <?CDATA $ {cal R}(Zto bbar btoXi^{+,0}_{bc}+X) sim {cal O}(10^{-5}) $?> , respectively. Finally, we present the differential decay widths of <?CDATA $ Xi_{bc} $?> and <?CDATA $ Xi_{bb} $?> with respect to <?CDATA $ s_{23} $?> and z distributions and analyze the uncertainties." @default.
- W4320921641 created "2023-02-16" @default.
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- W4320921641 date "2023-05-01" @default.
- W4320921641 modified "2023-10-18" @default.
- W4320921641 title "Investigation $Z$-boson decay into $Xi_{bc}$ and $Xi_{bb}$ baryon within NRQCD factorization approach" @default.
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- W4320921641 doi "https://doi.org/10.1088/1674-1137/acbc0e" @default.
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