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arXiv 0709.0673hep-ex
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H1激发态费米子

Excited Fermions at H1

E. Sauvan

摘要:

我们提出了一个搜索的激发中微子和电子使用的H1实验收集的所有数据在HERA的质心能量为320 GeV的积分亮度高达435 pb $^{-1}$。没有发现激发中微子或电子产生的证据。确定了耦合与复合尺度之比$f/Λ$的质量依赖排斥极限。这些限制极大地将排除区域扩展到比之前搜索中可能的更高质量。

英文摘要:

We present a search for excited neutrinos and electrons using all data collected by the H1 experiment at HERA at a center-of-mass energy of 320 GeV with an integrated luminosity of up to 435 pb$^{-1}$. No evidence for excited neutrino or electron production is found. Mass dependent exclusion limits are determined for the ratio of the coupling to the compositeness scale, $f/Λ$. These limits greatly extend the excluded region to higher masses than has been possible in previous searches.

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