期刊
EUROPEAN PHYSICAL JOURNAL C
卷 82, 期 1, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-021-09914-y
关键词
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资金
- European Union Horizon 2020 research and innovation program under the Marie Skodowska-Curie Grant [713673]
- La Caixa Foundation [100010434, LCF/BQ/IN17/11620044]
- Generalitat Valenciana [PROMETEO/2019/083, CIDEGENT/2019/040]
- European project [H2020-MSCA-ITN-2019//860881-HIDDeN]
- Project HPC-EUROPA3 [INFRAIA-2016-1-730897]
- EC Research Innovation Action under the H2020 Programme
- STFC [ST/P000479/1, ST/T00097X/1, ST/R00689X/1, ST/R001014/1]
- BEIS via STFC [ST/P002307/1, ST/R002452/1, ST/K000373/1, ST/R002363/1]
- [FPA2017-85985-P]
This article presents 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 fundamental Dirac fermions and based on a finite-volume scattering formalism. The theory exhibits a SU(4)->Sp(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 flavor singlet state is stable.
We 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 fundamental Dirac fermions and based on a finite-volume scattering formalism. The theory exhibits a SU (4) -> Sp(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.
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