arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0901.3794hep-ph
收藏

RSI/RSII混合模型中的重力和电弱对称破缺

Gravity and Electroweak Symmetry Breaking in a RSI/RSII Hybrid Model

Brian Glover, Jong Anly Tan

摘要:

我们提出了一个混合的RSI/RSII模型,在该模型中我们既解决了层次问题又产生了KK引力子模式的连续体。在这个模型中,四维引力可以被再现,辐射模可以被稳定。然后,我们修改了混合引力模型,使之包含SU(2)_L × SU(2)_R × U(1)_(B-L)体规范场。通过选择适当的边界条件,电弱对称性被破缺。通过调整额外维的一个区域的大小,我们表明,S参数可以减少,同时保护ρ参数的修正。我们发现当S参数减小~ 60%时,M_Z'和M_W'保持在1800 GeV以下,从而保护了幺正性。

英文摘要:

We present a hybrid RSI/RSII model in which we both solve the hierarchy problem and produce a continuum of KK graviton modes. In this model, four dimensional gravity can be reproduced and the radion mode can be stabilized. We then modify the hybrid gravity model to include SU(2)_L x SU(2)_R x U(1)_(B-L) bulk gauge fields. Electroweak symmetry is broken by the choice of appropriate boundary conditions. By adjusting the size of one region of the extra dimension, we show that the S parameter can be decreased while protecting the rho parameter from corrections. We find that as the S parameter is decreased by ~ 60%, M_Z' and M_W' stay below 1800 GeV, protecting unitarity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑