BESS AND ITS FUTURE PROSPECT FOR POLAR LONG DURATION FLIGHTS BESS
The Balloon-borne Experiment with a Superconducting Spectrometer, BESS, aims to study elementary particle/antiparticle phenomena inthe early history of the Universe. The instrument has a unique feature of a thin superconducting solenoid magnet enabling a large geometrical cceptance with a horizontal...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.622.4976 http://www.atic.umd.edu/pub/ASR_Yamamoto.pdf |
Summary: | The Balloon-borne Experiment with a Superconducting Spectrometer, BESS, aims to study elementary particle/antiparticle phenomena inthe early history of the Universe. The instrument has a unique feature of a thin superconducting solenoid magnet enabling a large geometrical cceptance with a horizontally cylindrical configuration. Seven balloon flights have been successfully carried out since 1993. More than 103 comic-ray antiproton have been unambiguously detected, and the energy spectrum has been measured with the characteristic peak at 2 GeV. The search for cosmic-ray antihelium brought he upper-limit of the antihelium/helium ratio down to < 10 6. TO extend the highly sensitive measurements, we are planning polar long duration flights in Antarctica focusing on the very low energy antiproton spectrum towards the solar-minimum in the next decade. © 2002 COSPAR. Published by Elsevier Science Ltd. |
---|