# Flux tubes in QCD with (2+1) HISQ fermions

## TL;DR

This study explores the structure of chromoelectric fields in (2+1) flavor QCD using lattice simulations with HISQ fermions, providing insights into flux tube profiles in the QCD vacuum.

## Contribution

It presents the first detailed lattice measurement of the transverse chromoelectric field profile in (2+1) flavor QCD with HISQ fermions, using modified MILC code.

## Key findings

- Measured the transverse profile of the chromoelectric field.
- Used physical quark masses and line of constant physics.
- Applied Monte Carlo simulations with HISQ/tree action.

## Abstract

We investigate the transverse profile of the chromoelectric field generated by a quark-antiquark pair in the vacuum of (2+1) flavor QCD. Monte Carlo simulations are performed adopting the HISQ/tree action discretization, as implemented in the publicly available MILC code, suitably modified to measure the chromoelectric field. We work on the line of constant physics, with physical strange quark mass $m_s$ and light to strange mass ratio $m_l/m_s = 1/20$.