Searches for atmospheric long-lived particles

Journal of High Energy Physics

C. Argüelles¹  P. Coloma²  V. Muñoz²  P. Hernández² 

[1] Dept. of Physics, Massachusetts Institute of Technology, 02139, Cambridge, MA, USA;Instituto de Física Corpuscular, Universidad de Valencia and CSIC, Edificio Institutos Investigación, Catedrático José Beltrán 2, 46980, Valencia, Spain;

关键词: Beyond Standard Model;    Neutrino Physics;    Solar and Atmospheric Neutrinos;   

DOI  :  10.1007/JHEP02(2020)190

来源: Springer

【 摘 要 】

Long-lived particles are predicted in extensions of the Standard Model that involve relatively light but very weakly interacting sectors. In this paper we consider the possibility that some of these particles are produced in atmospheric cosmic ray showers, and their decay intercepted by neutrino detectors such as IceCube or Super-Kamiokande. We present the methodology and evaluate the sensitivity of these searches in various scenarios, including extensions with heavy neutral leptons in models of massive neutrinos, models with an extra U(1) gauge symmetry, and a combination of both in a U(1)B−L model. Our results are shown as a function of the production rate and the lifetime of the corresponding long-lived particles.

【 授权许可】

CC BY