Prospects for the extraction of ${\mid}V_{cb}{\mid}$ from $B_c\ {\to}\ J/ψ μ^+\ ν$ decays at LHC

Details Prospects for the extraction of ${\mid}V_{cb}{\mid}$ from $B_c\ {\to}\ J/ψ μ^+\ ν$ decays at LHC Prospects for the extraction of ${\mid}V_{cb}{\mid}$ from $B_c\ {\to}\ J/ψ μ^+\ ν$ decays at LHC

1995-06-13

arxiv.org/abs/hep-ph/9506307v3

Z.Phys. C71 (1996) 277-286

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex using psfig.sty, 19 pages including 9 uuencoded. Replaced because of a few missprint errors

Scientific paper

10.1007/BF02906985

We discuss the possibility of extracting ${\mid}V_{cb}{\mid}$ from the future measurement at LHC of the $B_c\ {\rightarrow}\ J/\psi\ {\mu}^+\ {\nu}$ decay rate followed by the leptonic decay $J/\psi\ {\rightarrow}\ \mu^+\mu^-$. We examine in detail the influence of the measurement of the muons' momenta and vertex reconstruction in the final uncertainty of ${\mid}V_{cb}{\mid}$, as well as the required theoretical inputs at both the production and weak decay level, and their reliability in this regard. We stress the relevance of a rigorous description of the fragmentation contributions to inclusive production at large transverse momentum of heavy quarkonia in $pp$ collisions.

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