July 31, 2017 to August 4, 2017
Fermi National Accelerator Laboratory
US/Central timezone

Thermodynamics of SU(4) gauge theory with fermions in multiple representations

Aug 1, 2017, 11:01 AM
16m
1 West (Fermi National Accelerator Laboratory)

1 West

Fermi National Accelerator Laboratory

Presentation Beyond Standard Model Beyond Standard Model

Speaker

Daniel Hackett (University of Colorado, Boulder)

Description

We study the phase structure of SU(4) gauge theory with dynamical quarks in both the fundamental and two-index antisymmetric representations. Such "multi-representation" theories have been speculated to exhibit separated phase transitions, but our lattice calculations suggest the existence of only a single thermal phase transition: both species of fermion appear to confine and break chiral symmetry simultaneously. We investigate the order of the combined phase transition in various limits of the theory, and compare to theoretical expectations based on chiral symmetry.

Primary author

Daniel Hackett (University of Colorado, Boulder)

Co-authors

Prof. Benjamin Svetitsky (Tel Aviv University) Prof. Ethan Neil (University of Colorado, Boulder) Prof. Thomas DeGrand (University of Colorado, Boulder) Dr Venkitesh Ayyar (University of Colorado, Boulder) William Jay (University of Colorado, Boulder) Prof. Yigal Shamir (Tel Aviv University)

Presentation materials