Single Bremsstrahlung luminosity measurements at DAΦNE

Abstract

At DAΦNE luminosity measurements are performed by detecting Single Bremsstrahlung at the two interaction points. Set-up and measurement method are presented with special emphasis on background subtraction schemes, error evaluation and machine related issues.

Commissioning of the DAΦNE beam test facility

“…Calorimeter 2: It is one of the small calorimeters used for the online measurement of the DAFNE luminosity [12]. It has the same lead/fibers composition of Calorimeter 1, but has smaller transverse dimensions, 12:2 Â 12:2 cm 2 ; and thickness, 18:4 cm; corresponding to E11:5X 0 : It is equipped with two plastic guides concentrating the light onto a single 3 00 cathode photomultiplier (Hamamatsu H6155-01), as schematically shown in Fig.…”