The continuum limit of the static-light meson spectrum
ETM Collaboration: Chris Michael, Andrea Shindler, Marc Wagner
TL;DR
This study uses lattice QCD to analyze the static-light meson spectrum across different lattice spacings and pion masses, providing continuum limit results and predictions for B and B_s mesons.
Contribution
It presents the first continuum limit results for the static-light meson spectrum with Wilson twisted mass lattice QCD including multiple angular momentum and parity states.
Findings
Continuum limit results for various angular momenta and parities.
Predictions for B and B_s meson spectra.
Comparison with experimental data.
Abstract
We investigate the continuum limit of the low lying static-light meson spectrum using Wilson twisted mass lattice QCD with N_f = 2 dynamical quark flavours. We consider three values of the lattice spacing a ~ 0.051 fm, 0.064 fm, 0.080 fm and various values of the pion mass in the range 280 MeV < m_PS < 640 MeV. We present results in the continuum limit for light cloud angular momentum j = 1/2, 3/2, 5/2 and for parity P = +, -. We extrapolate our results to physical quark masses, make predictions regarding the spectrum of B and B_s mesons and compare with available experimental results.
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