Conference Paper/Proceeding/Abstract 684 views 99 downloads
Parity doubling in two-flavor SU(2) at high temperature
Jong-Wan Lee,
Biagio Lucini,
Maurizio Piai 
Pos(Lattice2016)080
Swansea University Author:
Maurizio Piai
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Abstract
We study the mass spectrum of mesons at high temperature in SU(2) gauge theory with two flavorsof Dirac fundamental fermions. Numerical simulations are carried out on anisotropic latticesusing Wilson fermions, with lattice parameters tuned so that Euclidean symmetry is restored atlow energy. We dete...
| Published in: | Pos(Lattice2016)080 |
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| ISSN: | 1824-8039 |
| Published: |
2017
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa32042 |
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| Abstract: |
We study the mass spectrum of mesons at high temperature in SU(2) gauge theory with two flavorsof Dirac fundamental fermions. Numerical simulations are carried out on anisotropic latticesusing Wilson fermions, with lattice parameters tuned so that Euclidean symmetry is restored atlow energy. We determine the pseudo-critical temperature Tc using renormalized Polyakov loops.We calculate temporal and spatial meson correlation functions across Tc, and observe a clear signof parity doublings above Tc in both vector and scalar channels. The degeneracy between paritypartners in the spectrum indicates that the enhanced SU(4)U(1)A global symmetry of the modelis restored at high temperature. |
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| College: |
Faculty of Science and Engineering |