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arXiv 1202.6324hep-phhep-ex
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辐射中性伴子产生的测量

Measurement of radiative neutralino production

Christoph Bartels, Olaf Kittel, Ulrich Langenfeld, Jenny List

摘要:

我们进行了第一次实验研究与全探测器模拟的辐射生产中性伴子在直线对撞机,在sqrt{s} = 500 GeV和现实的光束偏振。我们考虑了所有相关的背景,如辐射中微子产生的标准模型背景。纵向偏振光束增强了信号,同时减少了背景,从而显著减少了统计误差。我们发现,从信号过程中的光子谱可以很好地分离。中性伴子质量和截面可以在百分之几的水平上测量,束极化和束能谱的测量具有最大的系统不确定性。

英文摘要:

We perform the first experimental study with full detector simulation for the radiative production of neutralinos at the linear collider, at sqrt{s} = 500 GeV and realistic beam polarizations. We consider all relevant backgrounds, like the Standard Model background from radiative neutrino production. The longitudinal polarized beams enhance the signal and simultaneously reduce the background, such that statistical errors are significantly reduced. We find that the photon spectrum from the signal process can be well isolated. The neutralino mass and the cross section can be measured at a few per-cent level, with the largest systematic uncertainties from the measurement of the beam polarization and the beam energy spectrum.

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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