Report
The imaginary-$\theta$ dependence of the SU($N$) spectrum
| العنوان: | The imaginary-$\theta$ dependence of the SU($N$) spectrum |
|---|---|
| المؤلفون: | Bonanno, Claudio, Bonati, Claudio, Papace, Mario, Vadacchino, Davide |
| سنة النشر: | 2024 |
| المجموعة: | High Energy Physics - Lattice High Energy Physics - Theory |
| مصطلحات موضوعية: | High Energy Physics - Lattice, High Energy Physics - Theory |
| الوصف: | In this talk we will report on a study of the $\theta$-dependence of the string tension and of the mass gap of four-dimensional SU($N$) Yang--Mills theories. The spectrum at $N=3$ and $N=6$ was obtained on the lattice at various imaginary values of the $\theta$-parameter, using Parallel Tempering on Boundary Conditions to avoid topological freezing at fine lattice spacings. The coefficient of the $\mathcal{O}(\theta^2)$ term in the Taylor expansion of the spectrum around $\theta=0$ could be obtained in the continuum limit for $N=3$, and on two fairly fine lattices for $N=6$. Comment: 15 pages, 3 figures. Contribution to Proceedings of the 41st International Symposium on Lattice Field Theory (Lattice 2024), July 28th - August 3rd, 2024, University of Liverpool, UK |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2411.14022 |
| رقم الانضمام: | edsarx.2411.14022 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |