Decay rates and average luminosity in a B-factory

Author

Braun, H. ; Joho, W. ; Hübner, K.

Author_Institution

Paul Scherrer Inst., Villigen, Switzerland

fYear

1991

fDate

6-9 May 1991

Firstpage

141

Abstract

The different effects contributing to the decay of the electron and positron beam are discussed, and the coupled differential equations describing this decay in an asymmetric B-factory are given. The effect of the vacuum pressure rise by gas desorption owing to synchrotron radiation is taken into account. These equations can be solved numerically and the average luminosity can be calculated as function of the running time T for data taking the filling time F as a parameter. The proper choice of T for a given F can optimize the average luminosity. Examples relevant for a B-factory in the ISR tunnel at CERN (BFI) are given.<>

Keywords

electron accelerators; particle beam diagnostics; storage rings; B-factory; CERN; average luminosity; decay rates; electron beam; filling time; gas desorption; positron beam; running time; synchrotron radiation; vacuum pressure rise; Differential equations; Electron beams; Filling; Optical coupling; Particle beam injection; Particle beams; Particle scattering; Physics; Positrons; Synchrotron radiation;

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.1991.164227

Filename

164227