The 39th International Symposium on Lattice Field Theory (Lattice 2022)

Novel bottomonium spectral results

10 Aug 2022, 14:20

20m

CP1-HSZ/0.011 (CP1-HSZ) - HS1 (CP1-HSZ)

Oral Presentation QCD at Non-zero Temperature Non-zero Temperature

Speaker

Ben Page (Swansea University)

Description

We present the latest results from the use of the Backus-Gilbert method for reconstructing the spectra of NRQCD bottomonium mesons using anisotropic FASTSUM ensembles at non-zero temperature. We focus in particular on results from the ${\eta }_b$, $\mathrm{{\rm Y}}$ and ${\chi }_{b1}$ generated from Tikhonov-regularized Backus-Gilbert coefficient sets. We extend previous work on the Laplace shifting theorem as a means of resolution improvement and present new results from its use. We conclude with a discussion of the limitations of the improvement routine and elucidate a connection with Parisi-Lepage statistical scaling.

Presentation materials

Lattice2022_bottomonium_bpsu2.pdf