Energy and energy width measurement in the FNAL antiproton accumulator

Author

Church, M. ; Hsueh, S.Y. ; Rapidis, P.A. ; Werkema, S.

Author_Institution

Fermi Nat. Accel. Lab., Batavia, IL, USA

fYear

1991

fDate

6-9 May 1991

Firstpage

108

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.<>

Keywords

particle beam diagnostics; proton accelerators; storage rings; 4.1 to 6.3 GeV; FNAL antiproton accumulator; Fermilab Antiproton Accumulator; antiproton; beam energy; beam momentum spread; energy width; orbit length; resolution frequency; Current measurement; Energy measurement; Extraterrestrial measurements; Frequency measurement; Length measurement; Magnetic field measurement; Proton accelerators; Resonance; Signal analysis; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-0135-8

Type

conf

DOI

10.1109/PAC.1991.164216

Filename

164216