会议论文详细信息
15th Mexican School of Particles and Fields | |
The Z, Z' → γγγ decays in the minimal 331 model | |
Montaño, J.^1 ; Pérez, M.A.^1 ; Ramírez-Zavaleta, F.^2 ; Toscano, J.J.^3 | |
Departamento de Física, CINVESTAV, Apartado Postal 14-740, México, D. F., 07000, Mexico^1 | |
Facultad de Ciencias Físico Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo, Avenida Francisco J. Mújica S/N, Michoacán, 58060, Morelia, Mexico^2 | |
Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Apartado Postal 1152, Puebla, Puebla, Mexico^3 | |
关键词: Bose symmetry; Branching ratio; Complete calculation; Gauge bosons; Heavy particles; Loop level; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/468/1/012007/pdf DOI : 10.1088/1742-6596/468/1/012007 |
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来源: IOP | |
【 摘 要 】
A complete calculation at one-loop level for the Z, Z' → γγγ decays is presented in the context of the minimal 331 model, which predicts the existence of a new Z' neutral gauge boson, Y++, Y+charged gauge bosons, new exotic quarks and charged scalars. Bose symmetry is exploited to write a compact and manifest SUC[(3)-invariant vertex function for the γγγV0coupling. Previous results on the Z → γγγ are reproduced (Br(Z → γγγ) ∼ 10-10). It is found that this decay is insensitive to the effects of new heavy particles. This contrasts with the Z' → γγγ decay where the associated branching ratio is of the order of 10-6.
【 预 览 】
Files | Size | Format | View |
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The Z, Z' → γγγ decays in the minimal 331 model | 358KB | download |