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DOE OSTI ยท 2567103

16 O Electroweak Response Functions from First Principles

Acharya, Bijaya [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:000000031192093X)ยทSobczyk, Joanna E. [Johannes Gutenberg Univ., Mainz (Germany)] (ORCID:0000000346989339)ยทBacca, Sonia [Johannes Gutenberg Univ., Mainz (Germany); Helmholtz-Institut Mainz (Germany)] (ORCID:0000000291899458)ยทHagen, Gaute [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)] (ORCID:0000000160191687)ยทJiang, Weiguang [Johannes Gutenberg Univ., Mainz (Germany)] (ORCID:000000018441972X)
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Abstract

We present calculations of various electroweak response functions for the 16 O 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 |๐ช|โ‰ˆ326 MeV/c. Additionally, we provide several predictions for the weak response functions in the quasielastic peak region at |๐ช| =300 and 400 MeV/c, which are critical for long-baseline neutrino experiments.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSElectromagnetic transitionsElectroweak interactions in nuclear physicsNucleus-neutrino interactions

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Acharya, Bijaya [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:000000031192093X), Sobczyk, Joanna E. [Johannes Gutenberg Univ., Mainz (Germany)] (ORCID:0000000346989339), Bacca, Sonia [Johannes Gutenberg Univ., Mainz (Germany); Helmholtz-Institut Mainz (Germany)] (ORCID:0000000291899458), Hagen, Gaute [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)] (ORCID:0000000160191687), Jiang, Weiguang [Johannes Gutenberg Univ., Mainz (Germany)] (ORCID:000000018441972X). 2025-05-19. 16 O Electroweak Response Functions from First Principles. https://doi.org/10.1103/physrevlett.134.202501

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