Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

Excited and Exotic B, B_s and B_c mesons

Aug 9, 2022, 7:00 PM
1h
Poster Presentation Hadron Spectroscopy and Interactions Poster

Speaker

Luke Gayer

Description

A study of heavy-light meson spectroscopy, specifically the excited and exotic spectra of $B$, $B_s$ and $B_c$ is presented. This work was done on an anisotropic lattice of volume $20^3 \times 128$, with (2+1) flavours of dynamical quarks. A large basis of suitable operators was used in a variational analysis to determine finite volume spectra grouped by lattice irrep for each meson. Spin-identified spectra were produced by assigning continuum quantum numbers $J^P$ to each energy level based on the distribution of dominant operator overlaps, up to spin $J=4$. By examining the operator-state overlaps for each energy level in the lattice irreps, candidate states for a lightest hybrid supermultiplet with $J^P = (0,1,2)^-$ were identified in $B$, $B_s$ and $B_c$.

Primary author

Luke Gayer

Co-author

Prof. Sinead Ryan (Trinity College Dublin)

Presentation materials

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