تقرير
Structure functions from the Compton amplitude
| العنوان: | Structure functions from the Compton amplitude |
|---|---|
| المؤلفون: | collaboration, QCDSF-UKQCD-CSSM, Horsley, Roger, Nakamura, Yoshifumi, Perlt, Holger, Rakow, Paul E. L., Schierholz, Gerrit, Somfleth, Kim, Young, Ross D., Zanotti, James M. |
| سنة النشر: | 2020 |
| المجموعة: | High Energy Physics - Lattice |
| مصطلحات موضوعية: | High Energy Physics - Lattice |
| الوصف: | We have initiated a program to compute the Compton amplitude from lattice QCD with the Feynman-Hellman method. This amplitude is related to the structure function via a Fredholm integral equation of the first kind. It is known that these types of equations are inherently ill--posed - they are, e.g., extremely sensitive to perturbations of the system. We discuss two methods which are candidates to handle these problems: the model free inversion based on singular value decomposition and one Bayesian type approach. We apply the Bayesian method to currently available lattice data for the Compton amplitude. Comment: 7 pages, 5 figures, poster presented at the 37th International Symposium on Lattice Field Theory (Lattice 2019), 16-22 June 2019, Wuhan, China |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2001.05366 |
| رقم الأكسشن: | edsarx.2001.05366 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |