تقرير
The strong coupling constant: State of the art and the decade ahead
| العنوان: | The strong coupling constant: State of the art and the decade ahead |
|---|---|
| المؤلفون: | d'Enterria, D., Kluth, S., Zanderighi, G., Ayala, C., Benitez-Rathgeb, M. A., Bluemlein, J., Boito, D., Brambilla, N., Britzger, D., Camarda, S., Cooper-Sarkar, A. M., Cridge, T., Cvetic, G., Brida, M. Dalla, Deur, A., Giuli, F., Golterman, M., Hoang, A. H., Huston, J., Jamin, M., Kotikov, A. V., Krivokhizhin, V. G., Kronfeld, A. S., Leino, V., Lipka, K., Makela, T., Malaescu, B., Maltman, K., Marzani, S., Mateu, V., Moch, S., Monni, P. F., Nadolsky, P., Nason, P., Nesterenko, A. V., Perez-Ramos, R., Peris, S., Petreczky, P., Pich, A., Rabbertz, K., Ramos, A., Reichelt, D., Rodriguez-Sanchez, A., Rojo, J., Saragnese, M., Sawyer, L., Schott, M., Schumann, S., Shaikhatdenov, B. G., Sint, S., Soyez, G., Teca, D., Vairo, A., Vos, M., Waits, C., Weber, J. H., Wobisch, M., Xie, K. |
| سنة النشر: | 2022 |
| المجموعة: | High Energy Physics - Experiment High Energy Physics - Lattice High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, High Energy Physics - Experiment, High Energy Physics - Lattice |
| الوصف: | This document provides a comprehensive summary of the state-of-the-art, challenges, and prospects in the experimental and theoretical study of the strong coupling $\alpha_s$. The current status of the seven methods presently used to determine $\alpha_s$ based on: (i) lattice QCD, (ii) hadronic $\tau$ decays, (iii) deep-inelastic scattering and parton distribution functions fits, (iv) electroweak boson decays, hadronic final-states in (v) e+e-, (vi) e-p, and (vii) p-p collisions, and (viii) quarkonia decays and masses, are reviewed. Novel $\alpha_s$ determinations are discussed, as well as the averaging method used to obtain the PDG world-average value at the reference Z boson mass scale, $\alpha_s(m^2_Z)$. Each of the extraction methods proposed provides a "wish list" of experimental and theoretical developments required in order to achieve an ideal permille precision on $\alpha_s(m^2_Z)$ within the next 10 years. Comment: 130 pages, 82 figures. White paper submitted to the Energy Frontier "Proceedings of the US Community Study on the Future of Particle Physics" (Snowmass 2021) |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2203.08271 |
| رقم الأكسشن: | edsarx.2203.08271 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |