30 September 2024 to 3 October 2024
Europe/Berlin timezone

Extracting excited-state contributions of the $ B_s $ to $ D_s $ semi-leptonic decays from inclusive lattice simulations

1 Oct 2024, 15:30
20m

Speaker

Zhi HU (High Energy Accelerator Research Organization (KEK))

Description

We present a pilot study on extracting the P-wave form factors of the $ B_s $ to $ D_s $ semi-leptonic decays from the $B_s$ four-point correlators. With their inclusive nature, four-point correlators include all the exclusive states from $B_s$ with valence content of $c$ and $s$ quarks. We access the excited-state contributions by carefully fitting the correlators using multiple exponentials. In this pilot study, 2+1-flavour domain-wall fermion actions with approximately physical masses are utilized for light quarks. Heavy quarks, $c$ and $b$, are simulated using relativistic-heavy quark actions. A single lattice ensemble with a lattice spacing of 0.11 fm is used for the analysis.

I am very eager to participate in this event, but currently, I am still seeking funding for the trip if my abstract gets accepted.

Primary authors

Prof. Adreas Juettner (University of Southampton) Dr Ahmed Elgaziari (University of Southampton) Dr Alessandro Barone (Johannes Gutenberg University Mainz) Dr Ryan Kellermann (High Energy Accelerator Research Organization (KEK)) Prof. Shoji Hashimoto (High Energy Accelerator Research Organization (KEK)) Prof. Takashi Kaneko (High Energy Accelerator Research Organization (KEK)) Zhi HU (High Energy Accelerator Research Organization (KEK))

Presentation materials