Meson spectrum of Sp(4) lattice gauge theory with two fundamental Dirac fermions

Jong Wan Lee; Ed Bennett; Deog Ki Hong; C. J. David Lin; Biagio Lucini; Maurizio Piai; Davide Vadacchino

Meson spectrum of Sp(4) lattice gauge theory with two fundamental Dirac fermions

Jong Wan Lee^*, Ed Bennett, Deog Ki Hong, C. J. David Lin, Biagio Lucini, Maurizio Piai, Davide Vadacchino

^*Corresponding author for this work

Institute of Physics

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

We calculate the meson spectrum of the Sp(4) lattice gauge theory coupled to two fundamental flavours of dynamical Dirac fermions. We focus on some of the lightest (flavoured) spin-0 and spin-1 states. This theory provides an ultraviolet completion for composite Higgs models based upon the SU(4)/Sp(4) coset. We analyse the strongly coupled dynamics in isolation, without explicit coupling to the standard model. We carry out continuum extrapolations using dynamical ensembles generated at five different values of bare lattice coupling, and for several values of the bare fermion mass. We fit the resulting meson masses and decay constants to a low-energy effective field theory built along the ideas of hidden local symmetry. We also compare our results to those of other closely related lattice gauge theories, which have matter content consisting of two fundamental Dirac flavours.

Original language	English
Article number	054
Journal	Proceedings of Science
Volume	363
State	Published - Jun 2019
Event	37th International Symposium on Lattice Field Theory, LATTICE 2019 - Wuhan, China Duration: 16 Jun 2019 → 22 Jun 2019

Cite this

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title = "Meson spectrum of Sp(4) lattice gauge theory with two fundamental Dirac fermions",

abstract = "We calculate the meson spectrum of the Sp(4) lattice gauge theory coupled to two fundamental flavours of dynamical Dirac fermions. We focus on some of the lightest (flavoured) spin-0 and spin-1 states. This theory provides an ultraviolet completion for composite Higgs models based upon the SU(4)/Sp(4) coset. We analyse the strongly coupled dynamics in isolation, without explicit coupling to the standard model. We carry out continuum extrapolations using dynamical ensembles generated at five different values of bare lattice coupling, and for several values of the bare fermion mass. We fit the resulting meson masses and decay constants to a low-energy effective field theory built along the ideas of hidden local symmetry. We also compare our results to those of other closely related lattice gauge theories, which have matter content consisting of two fundamental Dirac flavours.",

author = "Lee, {Jong Wan} and Ed Bennett and Hong, {Deog Ki} and {David Lin}, {C. J.} and Biagio Lucini and Maurizio Piai and Davide Vadacchino",

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T1 - Meson spectrum of Sp(4) lattice gauge theory with two fundamental Dirac fermions

AU - Lee, Jong Wan

AU - Bennett, Ed

AU - Hong, Deog Ki

AU - David Lin, C. J.

AU - Lucini, Biagio

AU - Piai, Maurizio

AU - Vadacchino, Davide

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

PY - 2019/6

Y1 - 2019/6

N2 - We calculate the meson spectrum of the Sp(4) lattice gauge theory coupled to two fundamental flavours of dynamical Dirac fermions. We focus on some of the lightest (flavoured) spin-0 and spin-1 states. This theory provides an ultraviolet completion for composite Higgs models based upon the SU(4)/Sp(4) coset. We analyse the strongly coupled dynamics in isolation, without explicit coupling to the standard model. We carry out continuum extrapolations using dynamical ensembles generated at five different values of bare lattice coupling, and for several values of the bare fermion mass. We fit the resulting meson masses and decay constants to a low-energy effective field theory built along the ideas of hidden local symmetry. We also compare our results to those of other closely related lattice gauge theories, which have matter content consisting of two fundamental Dirac flavours.

AB - We calculate the meson spectrum of the Sp(4) lattice gauge theory coupled to two fundamental flavours of dynamical Dirac fermions. We focus on some of the lightest (flavoured) spin-0 and spin-1 states. This theory provides an ultraviolet completion for composite Higgs models based upon the SU(4)/Sp(4) coset. We analyse the strongly coupled dynamics in isolation, without explicit coupling to the standard model. We carry out continuum extrapolations using dynamical ensembles generated at five different values of bare lattice coupling, and for several values of the bare fermion mass. We fit the resulting meson masses and decay constants to a low-energy effective field theory built along the ideas of hidden local symmetry. We also compare our results to those of other closely related lattice gauge theories, which have matter content consisting of two fundamental Dirac flavours.

UR - http://www.scopus.com/inward/record.url?scp=85099591513&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85099591513

SN - 1824-8039

VL - 363

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 054

T2 - 37th International Symposium on Lattice Field Theory, LATTICE 2019

Y2 - 16 June 2019 through 22 June 2019

ER -

Meson spectrum of Sp(4) lattice gauge theory with two fundamental Dirac fermions

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