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arXiv 0809.4440hep-ph
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Randall-Sundrum现象学的新维度

New Dimensions for Randall-Sundrum Phenomenology

Hooman Davoudiasl, Thomas G. Rizzo

摘要:

我们考虑Randall-Sundrum(RS)模型的一个6D扩展,RS 6,其中标准模型(SM)规范场被允许在一个额外的维度中传播,在$S^1$或$S^1/Z_2$上被紧致化.在最小的情况下,费米子在5D RS子空间中传播,它们的定位提供了一个味道模型。新的卡鲁扎-克莱因(KK)状态,对应于沿第6维的规范场的激发,出现在TeV尺度附近。新的规范KK模式的行为不同于那些在5D翘曲模型。这些RS6状态具有强烈依赖于5D场局部化的耦合,并且在SM内,仅与重费米子和希格斯扇区相互作用,达到非常好的近似。因此,新规范KK态的对撞机现象敏感地依赖于5D费米子地理。我们简要讨论了SM费米子在所有6维中的包含,以及超越6D的可能性。

英文摘要:

We consider a 6D extension of the Randall-Sundrum (RS) model, RS6, where the Standard Model (SM) gauge fields are allowed to propagate in an additional dimension, compactified on $S^1$ or $S^1/Z_2$. In a minimal scenario, fermions propagate in the 5D RS subspace and their localization provides a model of flavor. New Kaluza-Klein (KK) states, corresponding to excitations of the gauge fields along the 6th dimension, appear near the TeV scale. The new gauge KK modes behave differently from those in the 5D warped models. These RS6 states have couplings with strong dependence on 5D field localization and, within the SM, only interact with heavy fermions and the Higgs sector, to a very good approximation. Thus, the collider phenomenology of the new gauge KK states sensitively depends on the 5D fermion geography. We briefly discuss inclusion of SM fermions in all 6 dimensions, as well as the possibility of going beyond 6D.

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