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arXiv 1606.02558hep-phastro-ph.SRhep-ex
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用中微子-电子散射测量太阳核尺寸的投影

Projections for measuring the size of the solar core with neutrino-electron scattering

Jonathan H. Davis

摘要:

我们量化的数据量,以测量的大小和位置的$^8$ B中微子生产区域内的太阳能核心,在实验中寻找电子和太阳中微子之间的弹性散射。散射后电子的方向与中微子的入射方向密切相关,但这会因这些电子随后在检测器介质中的散射而显着降低。我们产生的分布,这样的电子为不同的中微子生产配置文件,并使用极大似然分析,使未来的实验灵敏度的预测。我们发现,大约20年的数据,超级神冈实验可以限制壳层的中心半径,其中$^8$ B中微子产生小于0.22的总太阳半径在95%的置信度。

英文摘要:

We quantify the amount of data needed in order to measure the size and position of the $^8$B neutrino production region within the solar core, for experiments looking at elastic scattering between electrons and solar neutrinos. The directions of the electrons immediately after scattering are strongly correlated with the incident directions of the neutrinos, however this is degraded significantly by the subsequent scattering of these electrons in the detector medium. We generate distributions of such electrons for different neutrino production profiles, and use a maximum likelihood analysis to make projections for future experimental sensitivity. We find that with approximately 20 years worth of data the Super Kamiokande experiment could constrain the central radius of the shell in which $^8$B neutrinos are produced to be less than 0.22 of the total solar radius at 95% confidence.

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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