Heavy-to-light form factors on the light cone

2007/01/31 by Cai-Dian Lü, Cai-Dian Lu, Wei Wang +1 · 5 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.76.014013

published as Phys.Rev.D76:014013,2007 · 25 pages, 4 figures

arxiv created 2007/06/22 · openalex publication_date 2007/07/31 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The light-cone method provides a convenient nonperturbative tool to study the heavy-to-light form factors. We construct a light-cone quark model utilizing the soft collinear effective theory. In the leading order of effective theory, the form factors for B-to-light pseudoscalar and vector mesons are reduced to three universal form factors which can be calculated as overlaps of hadron light-cone wave functions. The numerical results show that the leading contribution is close to the results from other approaches. The q² dependence of the heavy-to-light form factors is also presented.

Cited by

• B→K transition form factor up to O(1/m²_b) within the kT factorization approach
• Diquarks andΛb→Λcweak decays
• Whether new data onDs→f0(980)e+νecan be understood iff0(980)consists of only the conventionalqq¯structure
• Determining the η−η′ mixing by the newly measured BR(D(D_s)→η(η')+l+ν_l
• Interpretation of the “fDspuzzle” in the standard model and beyond