Bottomonium at finite temperature from lattice QCD

20 May 2014, 16:30
2h
spectrum (darmstadtium)

spectrum

darmstadtium

Board: F-17
Poster Open Heavy Flavour and Quarkonia Poster session

Speaker

Tim Harris (Trinity College, Dublin)

Description

I will present some recent results from the FASTSUM collaboration on the bottomonium spectrum at finite temperature from lattice QCD. From the calculation of the spectral functions using the maximum entropy method we confirm earlier findings on the survival of the ground state S wave states up to at least 2$T_c$ and observe further strong indications of the dissociation of the P wave ground states immediately in the deconfined phase. In this work we use ensembles with $N_f=2+1$ dynamical quarks and improved lattice parameters. The heavy quark is treated with a non-relativistic effective theory on the lattice and serves as a probe of the hot medium. We discuss the reconstruction of the spectral functions from the Euclidean correlation functions.
On behalf of collaboration: [Other]

Primary author

Tim Harris (Trinity College, Dublin)

Co-authors

Chris Allton (Swansea University) Prof. Gert Aarts (Swansea University) Jon-Ivar Skullerud (National University of Ireland Maynooth) Maria Paola Lombardo (INFN) Seyong Kim (Unknown) Dr Sinead Ryan (TCD)

Presentation Materials