论文标题
宇宙射线繁殖和产生银河系中的二次颗粒
Cosmic-ray propagation and production of secondary particles in the Galaxy
论文作者
论文摘要
如今，宇宙射线是研究宇宙中极端物体的天体物理学，宇宙环境等离子体（包括银河系和半乳酸外的），核相互作用的物理学或基本颗粒在非常高能量的基本颗粒的性质，甚至是宇宙学问题（例如黑暗问题拼图）。在本文中，根据该领域的最新实验数据研究了有关银河宇宙射线运输的现象学，并提供了新的分析以获得更好的约束。在整个论文中，对宇宙射线与星际气体的碰撞产生的次级颗粒（例如次级宇宙射线核（B，BE和LI），抗磷脂和γ射线，以调整和测试我们的模型并探测不同的场景，例如暗物质腐烂或nihihilihilation的可能签名。即将推出的Dragon2代码的初步版本已用于执行传播计算。随着CR数据精度的提高，关于银河系中电动颗粒传播的标准范式，许多异常出现了许多异常情况。在本论文中，我们证明了其中一些异常情况消失了，考虑了涉及这些分析的系统不确定性，特别是跨部门的不确定性。
Cosmic rays are nowadays a crucial tool to study the astrophysics of extreme objects in the Universe, the cosmic environmental plasma (both Galactic and extra-galactic), the physics of nuclear interactions or the properties of elementary particles at very high energies and even cosmological problems such as the dark matter puzzle. In this thesis, the phenomenology on the transport of Galactic cosmic rays is studied in light of the most recent experimental data in the field and new analyses are presented in order to obtain better constraints. Throughout the thesis, secondary particles produced from collisions of cosmic rays with the interstellar gas, such as secondary cosmic ray nuclei (B, Be and Li), antiprotons and gamma rays, are treated in order to adjust and test our models and probe different scenarios, such as possible signatures of dark matter decay or annihilation. A preliminary version of the upcoming DRAGON2 code has been used to perform the propagation computations. With the increasing accuracy of CR data a number of anomalies have appear with respect to the standard paradigm of propagation of charged particles in the Galaxy. In this thesis, we demonstrate that some of these anomalies disappear by taking into account the systematic uncertainties involving these kind of analyses, specially cross sections uncertainties.
