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arXiv 0706.0437hep-ex
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用MINOS探测器和NuMI中微子束测量中微子速度

Measurement of neutrino velocity with the MINOS detectors and NuMI neutrino beam

MINOS Collaboration, P. Adamson

摘要:

通过比较MINOS实验中相距734 km的近、远探测器的探测时间,测量了~ 3GeV中微子束的速度。共使用了473个远探测器中微子事件,测量到(v-c)/c = 5.1 +/- 2.9 x 10^-5(在68% C. L.时)。通过将测量到的258个带电中微子事件的能量与它们到达远探测器的时间相关联,我们对中微子质量的限制是m_nu < 50 MeV/c^2(99% C. L)。

英文摘要:

The velocity of a ~3 GeV neutrino beam is measured by comparing detection times at the Near and Far detectors of the MINOS experiment, separated by 734 km. A total of 473 Far Detector neutrino events was used to measure (v-c)/c = 5.1 +/- 2.9 x 10^-5 (at 68% C.L.). By correlating the measured energies of 258 charged-current neutrino events to their arrival times at the Far Detector, a limit is imposed on the neutrino mass of m_nu < 50 MeV/c^2 (99% C.L.).

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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