The mass composition of cosmic rays above 1017 eV

被引：19

作者：

Watson, AA ^{[1
]}

机构：

[1] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2004年 / 136卷

关键词：

D O I：

10.1016/j.nuclphysbps.2004.10.066

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

It is shown that our knowledge of the mass composition of cosmic rays is deficient at all energies above 10(17) eV. Systematic differences between different measurements are discussed and, in particular, it is argued that there is no compelling evidence to support the common assumption that cosmic rays of the highest energies are protons. Our knowledge of the mass needs to be improved if we are to resolve uncertainties about the energy spectrum and interpret data on the arrival direction distribution of cosmic ray.

引用

页码：290 / 300

页数：11

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