Luminosity Measurement at ILC

Understand

More than twenty institutes join the FCAL Collaboration in study of design of the very forward region of a detector for ILC and CLIC.

• Of particular importance is an accurate luminosity measurement to the level of 10-3, a requirement driven by the potential for precision physics at a future linear collider.
• In this paper, the method for luminosity measurement, requirements on luminometer and its integration in the forward region are presented.
• The impact of several effects contributing to the systematic uncertainty of luminosity measurement is given.