Light-front quark model analysis of exclusive 0-→0- semileptonic heavy meson decays

Ho Meoyng Choi; Chueng Ryong Ji

doi:10.1016/S0370-2693(99)00817-5

Light-front quark model analysis of exclusive 0^-→0^- semileptonic heavy meson decays

Ho Meoyng Choi, Chueng Ryong Ji

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79 Scopus citations

Abstract

We present the analysis of exclusive 0^-→0^- semileptonic heavy meson decays using the constituent quark model based on the light-front quantization. Our model is constrained by the variational principle for the well-known linear plus Coulomb interaction motivated by QCD. Our method of analytic continuation to obtain the weak form factors avoids the difficulty associated with the contribution from the nonvalence quark-antiquark pair creation. Our numerical results for the heavy-to-heavy and heavy-to-light meson decays are in a good agreement with the available experi mental data and the lattice QCD results. In addition, our mode predicts the two unmeasured mass spectra of ¹S₀,(bb̄) and ³S₁(bs̄) systems as Mbb̄ = 9657 MeV and Mbs̄= 5424 MeV.

Original language	English
Pages (from-to)	461-466
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	460
Issue number	3-4
DOIs	https://doi.org/10.1016/S0370-2693(99)00817-5
State	Published - 1999

Keywords

Analytic continuation
Light-front quark model
Semileptonic heavy meson decays

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10.1016/S0370-2693(99)00817-5

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title = "Light-front quark model analysis of exclusive 0-→0- semileptonic heavy meson decays",

abstract = "We present the analysis of exclusive 0-→0- semileptonic heavy meson decays using the constituent quark model based on the light-front quantization. Our model is constrained by the variational principle for the well-known linear plus Coulomb interaction motivated by QCD. Our method of analytic continuation to obtain the weak form factors avoids the difficulty associated with the contribution from the nonvalence quark-antiquark pair creation. Our numerical results for the heavy-to-heavy and heavy-to-light meson decays are in a good agreement with the available experi mental data and the lattice QCD results. In addition, our mode predicts the two unmeasured mass spectra of 1S0,(b{\=b}) and 3S1(b{\=s}) systems as Mb{\=b} = 9657 MeV and Mb{\=s}= 5424 MeV.",

keywords = "Analytic continuation, Light-front quark model, Semileptonic heavy meson decays",

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year = "1999",

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journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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T1 - Light-front quark model analysis of exclusive 0-→0- semileptonic heavy meson decays

AU - Choi, Ho Meoyng

AU - Ji, Chueng Ryong

PY - 1999

Y1 - 1999

N2 - We present the analysis of exclusive 0-→0- semileptonic heavy meson decays using the constituent quark model based on the light-front quantization. Our model is constrained by the variational principle for the well-known linear plus Coulomb interaction motivated by QCD. Our method of analytic continuation to obtain the weak form factors avoids the difficulty associated with the contribution from the nonvalence quark-antiquark pair creation. Our numerical results for the heavy-to-heavy and heavy-to-light meson decays are in a good agreement with the available experi mental data and the lattice QCD results. In addition, our mode predicts the two unmeasured mass spectra of 1S0,(bb̄) and 3S1(bs̄) systems as Mbb̄ = 9657 MeV and Mbs̄= 5424 MeV.

AB - We present the analysis of exclusive 0-→0- semileptonic heavy meson decays using the constituent quark model based on the light-front quantization. Our model is constrained by the variational principle for the well-known linear plus Coulomb interaction motivated by QCD. Our method of analytic continuation to obtain the weak form factors avoids the difficulty associated with the contribution from the nonvalence quark-antiquark pair creation. Our numerical results for the heavy-to-heavy and heavy-to-light meson decays are in a good agreement with the available experi mental data and the lattice QCD results. In addition, our mode predicts the two unmeasured mass spectra of 1S0,(bb̄) and 3S1(bs̄) systems as Mbb̄ = 9657 MeV and Mbs̄= 5424 MeV.

KW - Analytic continuation

KW - Light-front quark model

KW - Semileptonic heavy meson decays

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U2 - 10.1016/S0370-2693(99)00817-5

DO - 10.1016/S0370-2693(99)00817-5

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SN - 0370-2693

VL - 460

SP - 461

EP - 466

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4

ER -

Light-front quark model analysis of exclusive 0^-→0^- semileptonic heavy meson decays

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Keywords

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