Minimal anomalous U(1)' extension of the MSSM

被引：72

作者：

Anastasopoulos, Pascal ^{[1
]}

Fucito, Francesco

Lionetto, Andrea

Pradisi, Gianfranco

Racioppi, Antonio

Stanev, Yassen S.

机构：

[1] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

来源：

PHYSICAL REVIEW D | 2008年 / 78卷 / 08期

关键词：

D O I：

10.1103/PhysRevD.78.085014

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study an extension of the minimal supersymmetric standard model by an anomalous Abelian vector multiplet and a Stuckelberg multiplet. The anomalies are cancelled by the Green-Schwarz mechanism and the addition of Chern-Simons terms. The advantage of this choice over the standard one is that it allows for arbitrary values of the quantum numbers of the extra U(1). As a first step toward the study of hadron annihilations producing four leptons in the final state (a clean signal which might be studied at LHC), we then compute the decays Z(')-> Z(0)gamma and Z(')-> Z(0)Z(0). We find that the largest values of the decay rate are similar to 10(-4) GeV, while the expected number of events per year at LHC is at most of the order of 10.

引用

页数：23

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