24-30 July 2016
Highfield Campus, University of Southampton
Europe/London timezone

Sextet Model with Wilson Fermions

28 Jul 2016, 18:10
20m
Building 67 Room 1027 (Highfield Campus, University of Southampton)

Building 67 Room 1027

Highfield Campus, University of Southampton

Talk Physics Beyond the Standard Model Physics Beyond the Standard Model

Speaker

Mr Martin Hansen (CP3-Origins, University of Southern Denmark)

Description

We present new results from our ongoing study of the SU(3) "sextet model" with two flavors in the 2-index symmetric representation of the gauge group. The simulations use unimproved Wilson fermions and to address the issue of whether or not the model is inside the conformal window, we measure the meson and baryon spectrum. To better understand the overall behavior of the lattice model we map out the bare parameter space, which reveals a non-trivial phase structure. At strong bare coupling, a first order phase transition is observed as a function of the bare mass, whereas closer to the continuum limit this first order transition disappears. Our study also shows that the behavior of mass spectrum (as a function of the quark mass) changes significantly when moving away from the bulk phase and into the weak coupling phase.

Primary authors

Prof. Claudio Pica (CP3-Origins, University of Southern Denmark) Mr Martin Hansen (CP3-Origins, University of Southern Denmark)

Co-author

Dr Vincent Drach (CERN-TH)

Presentation Materials