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arXiv 0905.0503hep-ph
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保护非粒子不受MSSM希格斯扇区的影响

Protecting unparticles from the MSSM Higgs sector

Ann E. Nelson, Maurizio Piai, Christopher Spitzer

摘要:

我们构造了一个由超对称SU(N)规范理论组成的非粒子扇形模型,在Seiberg共形窗中加入了若干味。我们通过重型信使将这个区域与MSSM连接。由此产生的低能理论有一个希格斯耦合到非粒子。希格斯vev驱动隐藏的Seiberg扇区到一个新的共形不动点。耦合到希格斯介导超对称破缺的塞贝格部门,并打破了在较低的尺度共形不变性。低能理论包括轻稳介子和亚稳介子。希格斯衰变到这个部门给出的签名是类似的“隐藏的山谷”模型。标准模型粒子中最轻的超伙伴衰变到隐藏扇区中,揭示了潜在的可观察到的非粒子运动学。

英文摘要:

We construct a model of an unparticle sector consisting of a supersymmetric SU(N) gauge theory with the number of flavors in the Seiberg conformal window. We couple this sector to the MSSM via heavy messengers. The resulting low energy theory has a Higgs coupling to unparticles. The Higgs vev drives the hidden Seiberg sector to a new conformal fixed point. The coupling to the Higgs mediates supersymmetry breaking to the Seiberg sector, and breaks conformal invariance at a lower scale. The low energy theory contains light stable and metastable mesons. Higgs decay into this sector gives signatures which are similar to those of "hidden valley" models. Decays of the lightest superpartner of standard model particles into the hidden sector reveal potentially observable unparticle kinematics.

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