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The parity-odd structure function of nucleon from the Compton amplitude
- Publication Year :
- 2024
-
Abstract
- The dominant contribution to the theoretical uncertainty in the extracted weak parameters of the Standard Model comes from the hadronic uncertainties in the electroweak boxes, i.e. $\gamma-W^\pm/Z$ exchange diagrams. A dispersive analysis relates the box diagrams to the parity-odd structure function, $F_3$, for which the experimental data either do not exist or belong to a separate isospin channel. Therefore a first-principles calculation of $F_3$ is highly desirable. In this contribution, we report on the QCDSF/UKQCD Collaboration's progress in calculating the moments of the $F_3^{\gamma Z}$ structure function from the forward Compton amplitude at the SU(3) symmetric point.<br />Comment: 9 pages, 3 figures. Contribution to the 40th International Symposium on Lattice Field Theory (Lattice 2023) July 31st - August 4th, 2023, Fermi National Accelerator Laboratory, Batavia IL, USA
- Subjects :
- High Energy Physics - Lattice
High Energy Physics - Phenomenology
Nuclear Theory
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.2402.00255
- Document Type :
- Working Paper