Parton model for inclusive semileptonic B meson decays

The parton model for inclusive semileptonic B decays is developed and compared with the results of heavy quark effective theory (HQET) and other methods for calculating lepton spectra. A distribution function, taken from production experiments, is used to describe the matrix elements of the dominant...

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Bibliographic Details
Published in:Physics letters. B 1994-06, Vol.329 (2), p.364-368
Main Authors: Jin, C.H., Palmer, W.F., Paschos, E.A.
Format: Article
Language:English
Subjects:
Bottom mesons
Decays of bottom mesons
Exact sciences and technology
Heavy quark effective theory
Leptonic and semileptonic decays of mesons
Mesons
Phenomenological quark models
Physics
Properties of specific particles
Specific reactions and phenomenology
Specific theories and interaction models
particle systematics
The physics of elementary particles and fields
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Summary:The parton model for inclusive semileptonic B decays is developed and compared with the results of heavy quark effective theory (HQET) and other methods for calculating lepton spectra. A distribution function, taken from production experiments, is used to describe the matrix elements of the dominant bilocal operator. The parton model gives an electron spectrum which is in excellent agreement with experiment at all measured electron energies and is well behaved at the endpoint where it may serve as a useful model. Moreover, it allows the calculation of additional spectra in several variables, which are computed and shown to vary strongly with the hadronic energy.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(94)90787-0