Abstract
AbstractWe present the first calculation of the scattering amplitude in the singlet channel beyond QCD. The calculation is performed in SU(2) gauge theory with $$N_f=2$$
N
f
=
2
fundamental Dirac fermions and based on a finite-volume scattering formalism. The theory exhibits a $$SU(4) \rightarrow Sp(4)$$
S
U
(
4
)
→
S
p
(
4
)
chiral symmetry breaking pattern that is used to design minimal composite Higgs models currently tested at the LHC. Our results show that, for the range of underlying fermion mass considered, the lowest flavour singlet state is stable.
Funder
Ministerio de Ciencia e Innovación
H2020 Marie Skłodowska-Curie Actions
“la Caixa” Foundation
Science and Technology Facilities Council
Generalitat Valenciana
Horizon 2020 Framework Programme
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous),Engineering (miscellaneous)
Cited by
8 articles.
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