Publications
Publication Information
| Title | Weak Neutral Current Axial Form Factor Using (v-)v-Nucleon Scattering and Lattice QCD Inputs |
| Authors | Raza Sufian, David Richards, Kehfei Liu |
| JLAB number | JLAB-THY-18-2792 |
| LANL number | arXiv:1809.03509 |
| Other number | DOE/OR/23177-4525 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Journal of High Energy Physics Volume 2020 Page(s) 136 Refereed | |
| Publication Abstract: | The interplay of first-principles lattice QCD calculations and experimental results can unveil such nucleon properties to higher precision and accuracy than either theory or experiment alone can obtain. In this simple yet novel analysis, using a combination of the strange quark electromagnetic form factors from lattice QCD and (anti)neutrino-nucleon neutral current elastic scattering differential cross section data from MiniBooNE experiments in a kinematic region $0.3\lesssim Q^2 \lesssim 0.7$ GeV$^2$, we obtain, \textit{(1)} the most precise determination of the weak neutral current axial form factor with weak axial charge $G^Z_A(0)=-0.734(63)(20)$, \textit{(2)} strange quark contribution to the proton spin $\Delta s= -0.196(127)(41)$, \textit{(3)} reconstruct the MiniBooNE data along with the prediction of BNL E734 (anti)neutrino-nucleon scattering differential cross section data in the $0 \lesssim Q^2\leq 1$ GeV$^2$ momentum transfer region to test the validity and predictive power of this calculation. This analysis can play an important role in disentangling the nuclear effects in the neutrino-nucleus scattering processes. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1007/JHEP01(2020)136 |
| Accepted Manuscript: | Sufian2020_Article_WeakNeutralCurrentAxialFormFac.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |