期刊
PHYSICAL REVIEW D
卷 82, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.82.111701
关键词
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资金
- NSF [0855039]
- DOE [DE-AC02-07CH11359]
- Direct For Mathematical & Physical Scien
- Division Of Physics [0855039] Funding Source: National Science Foundation
An unbroken discrete symmetry, analogous to G parity in QCD, exists in standard model extensions with vectorlike coupling of electroweak SU(2) to hidden sector'' fermions that are confined by a strong gauge force. For an arbitrary irreducible SU(2) representation of the hidden sector fermions, the lightest hidden sector states form an isotriplet of pions'' with calculable mass splittings and couplings to standard model fields. The parity can be extended to fermions in real representations of color SU(3), and can provide dark matter candidates with distinct collider signatures.
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