论文标题
Dilaton手性扰动理论的应用到$ n_f = 8 $，$ {\ rm su}（3）$光谱数据
Application of dilaton chiral perturbation theory to $N_f=8$, ${\rm SU}(3)$ spectral data
论文作者
论文摘要
我们扩展了Dilaton手性扰动理论（DCHPT），以包括Nambu中的味道分裂 - 在具有交错的费米子的近似形式理论的晶格模拟中观察到的Goldstone扇区。然后，我们将DCHPT应用于SU（3）仪表理论的LSD合作的最新模拟，其中具有8个基本表示中的8个费米子，据信在红外线中表现出近乎符号的行为，其中已经发现了轻单型标量状态，几乎与Pions退化了。我们发现，DCHPT可以成功地描述该理论的中间部门，特别是在模拟中发现的中间味道分裂。我们确认当前对该理论的模拟在“大质量”制度中。
We extend dilaton chiral perturbation theory (dChPT) to include the taste splittings in the Nambu--Goldstone sector observed in lattice simulations of near-conformal theories with staggered fermions. We then apply dChPT to a recent simulation by the LSD collaboration of the SU(3) gauge theory with 8 fermions in the fundamental representation, which is believed to exhibit near-conformal behavior in the infrared, and in which a light singlet scalar state, nearly degenerate with the pions, has been found. We find that the mesonic sector of this theory can be successfully described by dChPT, including, in particular, the mesonic taste splittings found in the simulation. We confirm that current simulations of this theory are in the "large-mass" regime.
