Searching in 2-Dimensional mass space for final states with 2 invisible particles

Journal of High Energy Physics

G. Anagnostou¹ 

[1] Institute of Nuclear and Particle Physics, NCSR Demokritos, Patr. Gregoriou E and 27 Neapoleos Str, 15341, Agia Paraskevi, Greece;

关键词: Supersymmetry Phenomenology;   

DOI  :  10.1007/JHEP07(2021)112

来源: Springer

【 摘 要 】

A method to search for particles of unknown masses in final states with two invisible particles is presented. Searching for final states with missing energy is a challenging task usually performed in the tail of a missing energy related distribution. The search method proposed is based on a 2-Dimensional mass reconstruction of the final state with two invisible particles. Thus, a bump hunting is possible, allowing a stronger signal versus background discrimination. Parameters of the new theory can be extracted from the mass distributions, a valuable step towards understanding its true nature. The proof of principle is based on the existing SM top pairs in their dilepton final state. The method is applicable in many interesting searches at the LHC, including dark matter candidates or heavy top partners.

【 授权许可】

CC BY