تقرير
Nature of the $a_1$ meson in lattice quantum chromodynamics studied with chiral fermions
| العنوان: | Nature of the $a_1$ meson in lattice quantum chromodynamics studied with chiral fermions |
|---|---|
| المؤلفون: | Murakami, Yuko, Muroya, Shin, Nakamura, Atsushi, Nonaka, Chiho, Sekiguchi, Motoo, Wada, Hiroaki, Wakayama, Masayuki |
| سنة النشر: | 2018 |
| المجموعة: | High Energy Physics - Lattice |
| مصطلحات موضوعية: | High Energy Physics - Lattice |
| الوصف: | We study the $a_1$ meson using a quenched lattice quantum chromodynamics simulation with the truncated overlap fermions formalism based on the domain wall fermions. The obtained lightest mass of the $a_1$ meson, 1272(45) MeV, is consistent with the experimental value for $a_1$(1260). Thus, $a_1$(1260) can be identified to have a simple two-body constituent-quark structure. Our quenched simulation result of $a_1$(1420) can not explain the experimental mass value, which suggests $a_1$(1420) is not a simple $q\bar{q}$ two quark state. Comment: 4 pages, 3 figures and 2 tables |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1812.07765 |
| رقم الأكسشن: | edsarx.1812.07765 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |