The paper computes top-quark decay widths of 0.2251 MeV for anti-B_c, 0.3099 MeV for anti-B_c*, 0.0537 MeV for eta_c and 0.0555 MeV for J/psi, predicting 10^4-10^6 B_c events and 10^3-10^5 charmonium events per year at the LHC with this channel dominant for charmonium.
Combining all components, the complete differential 4-body phase space is: dΦ 4 = s 24(2π )6 |⃗ p′ 2 |√ sydydp 0 1dp0 4d cosθ′ 2dφ ′
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Production of doubly heavy quarkonium associated with two heavy quarks via top quark decays
The paper computes top-quark decay widths of 0.2251 MeV for anti-B_c, 0.3099 MeV for anti-B_c*, 0.0537 MeV for eta_c and 0.0555 MeV for J/psi, predicting 10^4-10^6 B_c events and 10^3-10^5 charmonium events per year at the LHC with this channel dominant for charmonium.