Heavy-to-light Meson Form Factors at Large Recoil

Journal Article · Fri May 27 00:00:00 EDT 2005 · Phys.Rev.D73:014012,2006

OSTI ID:890794

Hill, Richard J

Heavy-to-light meson form factors at large recoil can be described using the same techniques as for hard exclusive processes involving only light hadrons. Two competing mechanisms appear in the large-recoil regime, describing so-called ''soft-overlap'' and ''hard-scattering'' components of the form factors. It is shown how existing experimental data from B and D decays constrain the relative size of these components, and how lattice data can be used to study properties such as the energy scaling laws obeyed by the individual components. Symmetry relations between different form factors (F{sub +}, F{sub 0} and F{sub T}), and between different heavy initial-state mesons (B and D), are derived in the combined heavy-quark and large-recoil limits, and are shown to generalize corresponding relations valid at small recoil. Form factor parameterizations that are consistent with the large-recoil limit are discussed.

• Research Organization: Stanford Linear Accelerator Center (SLAC)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 890794
• Report Number(s): SLAC-PUB-11225; hep-ph/0505129
• Journal Information: Phys.Rev.D73:014012,2006, Journal Name: Phys.Rev.D73:014012,2006
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
FORM FACTORS
HADRONS
MESONS
Phenomenology-HEP
HEPEX
HEPPH
SCALING LAWS
SYMMETRY