Author :
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (94 download)
Book Synopsis Quark-hadron Duality Constraints on [gamma]Z Box Corrections to Parity-violating Elastic Scattering by :
Download or read book Quark-hadron Duality Constraints on [gamma]Z Box Corrections to Parity-violating Elastic Scattering written by and published by . This book was released on 2015 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, we examine the interference $\gamma Z$ box corrections to parity-violating elastic electron-proton scattering in the light of the recent observation of quark-hadron duality in parity-violating deep-inelastic scattering from the deuteron at low $Q^2$. Using the similarity of electromagnetic and $\gamma Z$ structure function moments and those extracted from leading twist parton distributions down to $Q^2 \approx 1$~GeV$^2$, we find that duality constrains the $\gamma Z$ box correction to $\Re \square_{\gamma Z}^V = (5.4 \pm 0.4) \times 10^{-3}$ at the kinematics of the Q-weak experiment. Within the same model we also provide estimates of the $\gamma Z$ corrections for future experiments, such as MOLLER at Jefferson Lab and MESA at Mainz.