Flux tubes in Nf = 2 + 1 QCD with external magnetic fields

Claudio Bonati; Salvatore Calì; Massimo D’Elia; Michele Mesiti; Francesco Negro; Andrea Rucci; Francesco Sanfilippo

doi:10.1051/epjconf/201817512008

Proceedings

Open Access

EPJ Web of Conferences 175, 12008 (2018)
https://doi.org/10.1051/epjconf/201817512008

Flux tubes in N_f = 2 + 1 QCD with external magnetic fields

Claudio Bonati¹^,*, Salvatore Calì²^,3, Massimo D’Elia⁴^,5, Michele Mesiti⁴^,5^,**, Francesco Negro⁴^***, Andrea Rucci⁴^,5 and Francesco Sanfilippo⁶

¹ Dipartimento di Fisica e Astronomia and INFN (Firenze), Via G. Sansone 1, 50019, Sesto Fiorentino ( Italy )
² University of Cyprus, P.O. Box 20537, 1678 Nicosia, ( Cyprus )
³ University of Wuppertal, Gaußstr. 20, 42119 Wuppertal, ( Germany )
⁴ INFN - Sezione di Pisa, Largo B. Pontecorvo 3, 56127 Pisa ( Italy )
⁵ Dipartimento di Fisica dell’Università di Pisa, Largo B. Pontecorvo 3, 56127 Pisa ( Italy )
⁶ INFN - Sezione di Roma Tre, Via della Vasca Navale 84, 00146 Roma ( Italy )

^*** Speaker, e-mail: fnegro@pi.infn.it

Published online: 26 March 2018

Abstract

We study the behavior of the confining flux tube in N_f = 2 + 1 QCD at the physical point, discretized with the stout smearing improved staggered quark action and the tree level Symazik gauge action. We discuss how it depends on a uniform external magnetic field, showing how it displays anisotropies with respect to the magnetic field direction. Moreover, we compare the observed anisotropy pattern with that of the static quark-antiquark (QQ̅) potential we obtained in [1, 2].

Present address: 4,5

^**

Present address: Swansea University, Singleton Park, Swansea SA2 8PP, Wales (UK).

© The Authors, published by EDP Sciences, 2018

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).