Title: The Latest Results from AMS on the International Space Station）

Speaker: Prof.LI Zuhao

Moderator: Academician CHEN Hesheng

Time: 15:00, Oct.14

Place: Room C305, IHEP Main Building

Abstract:

AMS experiment is a large international collaboration consist more than 600 physicists from about 60 institutes. IHEP has made important contribution on both the construction of the detector and data analysis. AMS detector is a precision multipurpose particle physics detector running in space. It has been running on the international space station for more than 4 years and will last to the end of ISS mission. AMS has taken over 68 billion physics events in 4 years. In the past hundred years, measurements of charged cosmic rays by balloons and satellites have typically contained about 30% accuracy. AMS is providing cosmic ray information with about 1% accuracy. The latest AMS measurements of the positron fraction, the antiproton over proton ratio, the behavior of the fluxes of electrons, positrons, protons, helium, and other nuclei will be reported.