Correlation femtoscopy of small systems

Understand

The basic principles of the correlation femtoscopy, including its correspondence to the Hanbury Brown and Twiss intensity interferometry, are re-examined.

• The main subject of the paper is an analysis of the correlation femtoscopy when the source size is as small as the order of the uncertainty limit.
• It is about 1 fm for the current high energy experiments.
• Then the standard femtoscopy model of random sources is inapplicable.