تقرير
Ab initio study of $\boldsymbol{(\nu_\ell,\ell^-)}$ and $\boldsymbol{(\overline{\nu}_\ell,\ell^+)}$ inclusive scattering in $^{12}$C: confronting the MiniBooNE and T2K CCQE data
| العنوان: | Ab initio study of $\boldsymbol{(\nu_\ell,\ell^-)}$ and $\boldsymbol{(\overline{\nu}_\ell,\ell^+)}$ inclusive scattering in $^{12}$C: confronting the MiniBooNE and T2K CCQE data |
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| المؤلفون: | Lovato, A., Carlson, J., Gandolfi, S., Rocco, N., Schiavilla, R. |
| المصدر: | Phys. Rev. X 10, 031068 (2020) |
| سنة النشر: | 2020 |
| المجموعة: | High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Theory |
| مصطلحات موضوعية: | Nuclear Theory, High Energy Physics - Experiment, High Energy Physics - Phenomenology |
| الوصف: | We carry out an ab initio calculation of the neutrino flux-folded inclusive cross sections, measured on $^{12}$C by the MiniBooNE and T2K collaborations in the charged-current quasielastic (CCQE) regime. The calculation is based on realistic two- and three-nucleon interactions, and on a realistic nuclear electroweak current with one-and two-nucleon terms that are constructed consistently with these interactions and reproduce low-energy electroweak transitions. Numerically exact quantum Monte Carlo methods are utilized to compute the nuclear weak response functions, by fully retaining many-body correlations in the initial and final states and interference effects between one- and two-body current contributions. We employ a nucleon axial form factor of the dipole form with $\Lambda_A = 1.0$ or $1.15$ GeV, the latter more in line with a very recent lattice QCD determination. The calculated cross sections are found to be in good agreement with the neutrino data of MiniBooNE and T2K, and antineutrino MiniBooNE data, yielding a consistent picture of nuclei and their electroweak properties across a wide regime of energy and momenta. Comment: 13 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevX.10.031068 |
| URL الوصول: | http://arxiv.org/abs/2003.07710 |
| رقم الأكسشن: | edsarx.2003.07710 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevX.10.031068 |
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