New dense low-energy deuteron cross-section data yields α_E + β_M = 0.719 ± 0.009stat ± 0.014algo ± 0.023syst fm³ via Baldin sum rule; subtracting pionless-EFT β_M gives α_E = 0.637 ± 0.009stat ± 0.014algo ± 0.023syst ± 0.004theo fm³ in agreement with theory.
Rupak, Precision calculation of n p —>d gamma cross-section for big bang nucleosynthesis, Nucl
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Precision extraction of the deuteron electric polarizability via the Baldin sum rule with full low-energy coverage
New dense low-energy deuteron cross-section data yields α_E + β_M = 0.719 ± 0.009stat ± 0.014algo ± 0.023syst fm³ via Baldin sum rule; subtracting pionless-EFT β_M gives α_E = 0.637 ± 0.009stat ± 0.014algo ± 0.023syst ± 0.004theo fm³ in agreement with theory.