Anisotropic excited bottomonia from a basis of smeared operators

Year: 2025

Type: conference-paper

Abstract: Bottomonia play a crucial role in our understanding of the quark gluon plasma. We present lattice non-relativistic QCD calculations of bottomonia at temperatures in the range $T\in\left[47,\,380\right]$ MeV using the FASTSUM Generation 2L anisotropic $N_f = 2 + 1$ ensembles. The use of a basis of smeared operators allows the extraction of excited-state masses at zero temperature and an investigation of their thermal properties at non-zero temperature. We dind that the ground state signal is substantially improved by this variational approach at finite temperature. We also apply the time-derivative moments approach to the projected or optimal correlation functions at finite temperature.

Source: International Symposium on Lattice Field Theory (LATTICE)

DOI: 10.22323/1.466.0202

Authors: Ryan Bignell, Gert Aarts, Chris Allton, M. Naeem Anwar, Timothy Burns, Rachel Horohan D'arcy, Benjamin Jäger, Seyong Kim, Maria Paola Lombardo, Sinead Ryan, Jon-Ivar Skullerud, Antonio Smecca

Institutions: Trinity College Dublin, University of Southern Denmark, Sejong University, National University of Ireland, Maynooth, Swansea University, Istituto Nazionale di Fisica Nucleare, Sezione di Firenze

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: UK Research and Innovation, University of Leicester, Science Foundation Ireland, Partnership for Advanced Computing in Europe AISBL, Science and Technology Facilities Council, European Regional Development Fund

OpenAlex ID: W4407177010