Determination of the direction to a source of antineutrinos via inverse beta decay in Double Chooz

详细信息    查看全文

• 作者：Ya. Nikitenko
• 刊名：Physics of Particles and Nuclei
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：47
• 期：6
• 页码：1009-1013
• 全文大小：228 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Elementary Particles and Nuclei
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1531-8559
• 卷排序：47

文摘

To determine the direction to a source of neutrinos (and antineutrinos) is an important problem for the physics of supernovae and of the Earth. The direction to a source of antineutrinos can be estimated through the reaction of inverse beta decay. We show that the reactor neutrino experiment Double Chooz has unique capabilities to study antineutrino signal from point-like sources. Contemporary experimental data on antineutrino directionality is given. A rigorous mathematical approach for neutrino direction studies has been developed. Exact expressions for the precision of the simple mean estimator of neutrinos’ direction for normal and exponential distributions for a finite sample and for the limiting case of many events have been obtained.