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arXiv · 2410.05962

16O electroweak response functions from first principles

Bijaya Acharya·Joanna E. Sobczyk·Sonia Bacca·Gaute Hagen·Weiguang Jiang
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Abstract

We present calculations of various electroweak response functions for the 16O nucleus obtained using coupled-cluster theory in conjunction with the Lorentz integral transform method. We employ nuclear forces derived at next-to-leading order and next-to-next-to-leading order in chiral effective field theory and perform a Bayesian analysis to assess uncertainties. Our results are in good agreement with available electron-scattering data at q~ 326 MeV/c. Additionally, we provide several predictions for the weak response functions in the quasi-elastic peak region at q= 300 and 400 MeV/c, which are critical for long-baseline neutrino experiments.

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Bijaya Acharya, Joanna E. Sobczyk, Sonia Bacca, Gaute Hagen, Weiguang Jiang. 2024-10-08. 16O electroweak response functions from first principles. https://doi.org/10.1103/physrevlett.134.202501

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