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SU(3) symmetry breaking in hyperon semileptonic decays
High Energy Physics - Phenomenology · Submitted 21 May 1998
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim A detailed comparison with experimental data shows that corrections to f_1 are approximately 10%, which agrees with theoretical expectations.
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The abstract, sentence by sentence
Flavor SU(3) symmetry breaking in the hyperon semileptonic decay form-factors is analyzed using the 1/N expansion. A detailed comparison with experimental data shows that corrections to f_1 are approximately 10%, which agrees with theoretical expectations. Corrections to g_1 are compatible with first-order symmetry breaking. A fit to the experimental data allows one to predict the g_1 form factor for Xi^0 -> Sigma^+ decay. The proton matrix element of the T^8 component of the axial current (which is equal to 3F-D in the SU(3) symmetry limit) is found to be approximately 0.34.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Flavor SU(3) symmetry breaking in the hyperon semileptonic decay form-factors is analyzed using the 1/N expansion. | contribution 0.68 | 0.85 | 0.09 | asserted 0.98 |
| s1 | A detailed comparison with experimental data shows that corrections to f_1 are approximately 10%, which agrees with theoretical expectations. | result 0.99 | 0.81 | 0.26 | asserted 1.00 |
| s2 | Corrections to g_1 are compatible with first-order symmetry breaking. | result 0.87 | 0.76 | 0.16 | hedged possibility 0.83 |
| s3 | A fit to the experimental data allows one to predict the g_1 form factor for Xi^0 -> Sigma^+ decay. | result 0.72 | 0.85 | 0.18 | asserted 0.51 |
| s4 | The proton matrix element of the T^8 component of the axial current (which is equal to 3F-D in the SU(3) symmetry limit) is found to be approximately 0.34. | result 1.00 | 0.90 | 0.19 | asserted 1.00 |
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The paper
Original abstract
Flavor SU(3) symmetry breaking in the hyperon semileptonic decay form-factors is analyzed using the 1/N expansion. A detailed comparison with experimental data shows that corrections to f_1 are approximately 10%, which agrees with theoretical expectations. Corrections to g_1 are compatible with first-order symmetry breaking. A fit to the experimental data allows one to predict the g_1 form factor for Xi^0 -> Sigma^+ decay. The proton matrix element of the T^8 component of the axial current (which is equal to 3F-D in the SU(3) symmetry limit) is found to be approximately 0.34.
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References
How the literature uses it
10 arXiv papers cite this in 12 sentences
Papers citing it · 6 sentences without a confident label
Uses its data or values 1 paper
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For the $SU(3)_L⊗SU(3)_R$ HB$χ$PT analysis, the SU(3)-symmetric axial couplings are fixed to the central values of the best-fit experimental values: $D=0.79$, $F=0.47$ and $C=1.47$ [ref] .
High Statistics Analysis using Anisotropic Clover Lattices: (IV) Volume Dependence of Light Hadron Masses · Parameter Set · 0.99
Compares with it 1 paper
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With respect to $D$, however, Flores et al. [ref] and Cabibbo et al. [ref] —while obtaining central values very similar to those of Savage et al. [ref] and Ratcliffe [ref] —are at variance with the lattice determinations, within their errors.
Leading order mesonic and baryonic SU(3) low energy constants from $N_f = 3$ lattice QCD · Comparison with other recent determinations · 0.94
Cites it as background 4 papers
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SU(3) flavor symmetry breaking effects due to the mass differences between the $u,d$ and $s$ quarks have also been studied, for instance, in Refs. [ref] .
Study of semileptonic $B\to DP\ell^+\nu_\ell$ decays based on the SU(3) flavor symmetry · Introduction · 0.94
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Applications of the SU(3) flavor breaking approach on hadron decays can be found in Refs. [ref] .
Four-body Semileptonic Charm Decays $D\to P_1P_2\ell^+\nu_\ell $ Based on SU(3) Flavor Analysis · INTRODUCTION · 0.87
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For instance, lattice QCD [ref] , chiral perturbation theory [ref] , $1/N_c$ expansions [ref] or quark models [ref] have been used.
Cabibbo suppressed hyperon production off nuclei induced by antineutrinos · Introduction · 0.81
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