The Determination Of Heavy Quark Expansion Parameters λ1 and \overlineΛ from the Inclusive Lepton Spectrum in B Meson Decay

Details The Determination Of Heavy Quark Expansion Parameters λ1 and \overlineΛ from the Inclusive Lepton Spectrum in B Meson Decay The Determination Of Heavy Quark Expansion Parameters λ1 and \overlineΛ from the Inclusive Lepton Spectrum in B Meson Decay

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..aprs14009b&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

The experimental determinations of the Heavy Quark Expansion parameters provide important tests of the formalism used to extract |V_cb| from inclusive semileptonic B decay measurements. In particular, it is crucial to extract these parameters with several independent methods. We present an experimental determination of λ1 and \overlineΛ from truncated moments of the lepton energy spectra (p_l >= 1.5 GeV), both for e^±'s and μ^±'s. The value of |V_cb| obtained in this approach will also be presented.

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