학술논문
Energy and energy width measurement in the FNAL antiproton accumulator
Document Type
Conference
Author
Source
Conference Record of the 1991 IEEE Particle Accelerator Conference Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE. :108-110 vol.1 1991
Subject
Language
Abstract
The Fermilab Antiproton Accumulator has been used to produce charmonium resonances (charm quark, anti-charm quark bound states) in proton-antiproton annihilations using an internal H/sub 2/ gas jet target. A measurement of the resonance mass and width may be obtained from a precise knowledge of the antiproton beam energy and energy spread. The beam energy is measured to an accuracy of one part in 10/sup 4/ in the range 6.3 GeV to 4.1 GeV by measuring the orbit length and resolution frequency of the beam. The beam momentum spread is measured to an accuracy of 10%. The two measurement techniques used are described.ETX