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

Topological susceptibility in high temperature full QCD via staggered spectral projectors

Aug 9, 2022, 3:20 PM
20m
CP1-HSZ/1st-1.001 - HS5 (CP1-HSZ)

CP1-HSZ/1st-1.001 - HS5

CP1-HSZ

50
Oral Presentation Vacuum Structure, Confinement, and Chiral Symmetry Vacuum Structure, Confinement, and Chiral Symmetry

Speaker

Francesco D'Angelo (Università di Pisa and INFN Sezione di Pisa)

Description

We compute the topological susceptibility of $N_f = 2+1$ QCD at physical point in a temperature range going from 200 to 600 MeV. We adopt a multicanonical approach to enhance topological fluctuations and a definition of the susceptibility based on the spectral projectors over the eigenmodes of the staggered Dirac operator. This method allows to reduce lattice artifacts affecting the standard gluonic definition, making the continuum limit extrapolation more reliable.

Primary authors

Andreas Athenodorou (Computation-based Science and Technology Research Center, The Cyprus Institute) Antonino Todaro (Department of Physics, University of Cyprus; Faculty of Mathematics and Natural Sciences, University of Wuppertal; Dipartimento di Fisica, Università di Roma "Tor Vergata") Claudio Bonanno (INFN Sezione di Firenze) Claudio Bonati (Università di Pisa and INFN Sezione di Pisa) Francesco D'Angelo (Università di Pisa and INFN Sezione di Pisa) Francesco Sanfilippo (INFN Sezione di Roma Tre) Giuseppe Clemente (Deutsches Elektronen-Synchrotron (DESY)) Guido Martinelli (Dipartimento di Fisica and INFN Sezione di Roma "La Sapienza") Lorenzo Maio (Università di Pisa and INFN Sezione di Pisa) Massimo D'Elia (Università di Pisa and INFN Sezione di Pisa)

Presentation materials