pith:F2UPR6KN
Quantum Monte Carlo calculation of $\delta_C$ in the superallowed beta decay of $^{10}$C
Ab initio quantum Monte Carlo calculations determine the isospin-symmetry-breaking correction δ_C for the superallowed beta decay of 10C to be 0.15-0.25%.
arxiv:2605.14006 v1 · 2026-05-13 · nucl-th
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Claims
The resulting δ_C values lie in the range ≈ 0.15--0.25% and are consistent, within sizable uncertainties (approximately 34%--65% relative), across Hamiltonians, indicating no statistically significant dependence on the choice of nuclear interaction. The extracted values of V_ud are also found to be compatible with current determinations within these uncertainties.
That the quantum Monte Carlo sampling with the chosen phenomenological and chiral Hamiltonians fully captures isospin-symmetry-breaking effects without sizable systematic bias from finite model-space truncations or from the treatment of electromagnetic and charge-dependent forces.
Ab initio QMC calculations yield δ_C ≈ 0.15–0.25% for ¹⁰C superallowed beta decay, consistent across phenomenological and chiral interactions within 34–65% relative uncertainties.
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Receipt and verification
| First computed | 2026-05-17T23:39:13.109263Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
2ea8f8f94d1b00d1fdac297604256f91420d2f49caa4b282624f50580ff90847
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Canonical record JSON
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