Speaker
Roberto Dionisio
(Università di Pisa / INFN sez. di Pisa)
Description
The sphaleron rate is a key phenomenological quantity, relevant both for axion thermal production in the early Universe and for transport phenomena such as the Chiral Magnetic Effect.
I will begin by outlining the numerical strategy used to extract the sphaleron rate from lattice correlators, employing a regularized Backus–Gilbert reconstruction.
Then, I will present early results for the sphaleron rate at non-zero spatial momentum in pure-gauge theory, obtained from correlators double-extrapolated to the continuum and to zero smoothing radius.
Authors
Alessandra Valentino
(Università di Pisa)
Dr
Andrea Giorgieri
(Università di Pisa)
Dr
Claudio Bonanno
(IFT UAM/CSIC Madrid)
Dr
Francesco Sanfilippo
(INFN, Sezione di Roma Tre)
Dr
Giuseppe Gagliardi
(Dipartimento di Matematica e Fisica, Università “Roma Tre”)
Prof.
Massimo D'Elia
(Università di Pisa)
Roberto Dionisio
(Università di Pisa / INFN sez. di Pisa)