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arXiv hep-ph/9411237hep-ph
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未来对撞机对额外Z玻色子发现极限的比较

Comparison of Discovery Limits for Extra Z Bosons at Future Colliders

Stephen Godfrey

摘要:

我们研究和比较了在各种计划中或已经提出的$e^+e^-$和$p\stackrel{(-)}{p}$对撞机上发现重中性规范玻色子($Z'$)的潜力。典型的发现极限是TEVATRON $\sim 1$ TeV、DI-TEVATRON $\sim 2$ TeV、LHC $\sim 4$ TeV、LSGNA(60 TeV $pp$对撞机)$\sim 13$ TeV,而$e^+e^-$发现极限是$2-10\times \sqrt{s}$,其中大的变化反映了极限的模型依赖性。虽然这两种类型的对撞机具有可比的发现极限,但强子对撞机通常不太依赖于特定的$Z'$模型,并且提供更鲁棒的极限,因为信号几乎没有背景。相比之下,$e^+e^-$限值的发现限值更多地依赖于模型,并且由于它们基于标准模型预测偏差的间接推断,因此它们对系统误差更敏感。

英文摘要:

We study and compare the discovery potential for heavy neutral gauge bosons ($Z'$) at various $e^+e^-$ and $p\stackrel{(-)}{p}$ colliders that are planned or have been proposed. Typical discovery limits are for the TEVATRON $\sim 1$ TeV, DI-TEVATRON $\sim 2$ TeV, LHC $\sim 4$ TeV, LSGNA (a 60 TeV $pp$ collider) $\sim 13$ TeV while the $e^+e^-$ discovery limits are $2-10\times \sqrt{s}$ with the large variation reflecting the model dependence of the limits. While both types of colliders have comparable discovery limits the hadron colliders are generally less dependent on the specific $Z'$ model and provide more robust limits since the signal has little background. In contrast, discovery limits for $e^+e^-$ limits are more model dependent and because they are based on indirect inferences of deviations from standard model predictions, they are more sensitive to systematic errors.

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。

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