Survey of heavy-meson observables

1998/12/31 by M. A. Ivanov, Yu. L. Kalinovsky, Craig D. Roberts +1 · 12 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Meson #Nuclear physics #Observable #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #hep-ex #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevd.60.034018

published as Phys.Rev.D60:034018,1999 · 32 pages, 7 figures, REVTEX. Some quantitative modification of tables and figures: calculation of additional processes. To appear in Phys. Rev. D

arxiv created 1999/04/19 · openalex publication_date 1999/07/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We employ a Dyson-Schwinger equation model to effect a unified and uniformly accurate description of light- and heavy-meson observables, which we characterize by heavy-meson leptonic decays, semileptonic heavy-to-heavy and heavy-to-light transitions, \stackrel\ensuremath→BD^*, D, \ensuremathρ, \ensuremathπ; \stackrel\ensuremath→DK^*, K, \ensuremathπ, radiative and strong decays, B_(s)^*\ensuremath→B_(s)\ensuremathγ; D_(s)^*\ensuremath→D_(s)\ensuremathγ, D\ensuremathπ, and the rare \stackrel\ensuremath→BK^*\ensuremathγ flavor-changing neutral-current process. We elucidate the heavy-quark limit of these processes and, using a model-independent mass formula valid for all nonsinglet pseudoscalar mesons, demonstrate that their mass rises linearly with the mass of their heaviest constituent. In our numerical calculations we eschew a heavy-quark expansion and rely instead on the observation that the dressed c,b-quark mass functions are well approximated by a constant, interpreted as their constituent mass: we find M_c=1.32 GeV and M_b=4.65 GeV. The calculated heavy-meson leptonic decay constants and transition form factors are a necessary element in the experimental determination of CKM matrix elements. The results also show that this framework, as employed hitherto, is able to describe vector meson polarization observables well.

Citations

• Pseudovector components of the pion,π0→γγ,andFπ(q2)
• Baryon Magnetic Moments in a Relativistic Quark Model
• Differences between heavy and light quarks
• Kℓ3 and πe3 transition form factors
• Electromagnetic pion form factor and neutral pion decay width
• PION LOOP CONTRIBUTION TO THE ELECTROMAGNETIC PION CHARGE RADIUS
• π−πscattering in a QCD-based model field theory
• Dyson-Schwinger equations and their application to hadronic physics
• Nonperturbative three-point vertex in massless quenched QED and perturbation theory constraints
• Pomeron exchange and exclusive electroproduction of ϱ-mesons in QCD
• Towards a mapping of the marginal : readings of art songs by Nigerian, Ghanaian, Egyptian and South African composers
• Form Factors for B -> pi l nu-bar_l and B -> K* gamma Decays on the Lattice
• HEAVY QUARK PHYSICS FROM LATTICE QCD

Cited by

• Dyson–Schwinger Equations: A Tool for Hadron Physics
• Analysis of a quenched lattice-QCD dressed-quark propagator
• Aspects and consequences of a dressed-quark-gluon vertex
• Electromagnetic properties of ground-state and excited-state pseudoscalar mesons
• ON THE COMPLEXION OF PSEUDOSCALAR MESONS
• Concerning the quark condensate
• Neutron electric dipole moment: Constituent dressing and compositeness
• Dyson-Schwinger equations: An instrument for hadron physics
• Effects of a dressed quark-gluon vertex in vector heavy-light mesons and theory average of theBc*meson mass
• Flavor symmetry breaking and meson masses
• Relevance of various Dirac covariants in hadronic Bethe-Salpeter wave functions in electromagnetic decays of ground state vector mesons
• Perspective on the Origin of Hadron Masses
• Exclusive decaysB→ℓ−ν¯andB→D(*)ℓ−ν¯in the covariant quark model