Journal
PHYSICAL REVIEW D
Volume 103, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.103.015002
Keywords
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Funding
- Department of Energy (DOE) [DE-SC0011726]
- Ministry of Education, Science, Sports and Culture (MEXT), Japan [18K13534]
- U.S. Department of Energy (DOE) [DE-SC0011726] Funding Source: U.S. Department of Energy (DOE)
- Grants-in-Aid for Scientific Research [18K13534] Funding Source: KAKEN
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In this paper, supersymmetric Pati-Salam models containing the minimal supersymmetric standard model and an invisible axion are constructed. The models include two discrete symmetries, Z(4)(R) x Z(N), and R-parity violation is significantly suppressed in one model but significant in another.
In this paper we construct supersymmetric Pati-Salam (PS) models containing the minimal supersymmetric standard model and an invisible axion. The models include two discrete symmetries, Z(4)(R) x Z(N), which maintain the quality of the accidental Peccei-Quinn (PQ) symmetry and thus the solution to the strong CP problem. We require that the discrete anomaly conditions are satisfied for both Z(4)(R) x G(PS)(2) and Z(N) x G(PS)(2). The vacuum expectation value of the PQ field spontaneously breaks all the discrete symmetries. R-parity is violated if any of the PQ field(s) has an odd charge under Z(4)(R). We present two explicit models which we refer to as a minimal model where R-parity violation is extremely suppressed, and a nonminimal model where R-parity violation is significant. In the latter model, the neutralino becomes unstable even if it is the lightest supersymmetric particle (LSP), and, in addition, there are new low-energy vectorlike states. In both examples, R-parity violation is sufficiently suppressed such that the proton is stable.
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