Latest Results from the AMS experiment

Yuan-Hann Chang^1*

¹Physics, National Central University, Zhongli, Taiwan

* Presenter:Yuan-Hann Chang, email:yuanhann.chang@gmail.com

Abstract: The Alpha Magnetic Spectrometer is a particle spectrometer on board of the International Space Station. AMS measures the charge, energy and momentum of charged cosmic rays precisely from 1GV to a few TV in rigidity. AMS has been taking data continuously since May 2011. More than 140 billion cosmic ray events have been collected and analyzed. In this talk we report the latest AMS measurements of the cosmic ray spectra of electron, positron, proton, and antiproton. Unexpected features is observed, which requires new sources of cosmic rays to explain. AMS spectra of nuclei is also reported. Structures that cannot be explained by current cosmic ray theories are discussed.

Keywords: AMS, Cosmic Rays