DAFNE Operating Experience with Crab Waist Collisions
  The Phi-factory DAFNE was upgraded in the second half of 2007 in order to implement a recently proposed scheme of crab waist collisions aimed at substantial luminosity increase. Commissioning of the modified collider started in November 2007. In this paper we briefly describe the crab waist collision concept and discuss in detail the DAFNE hardware upgrade and obtained experimental results. 
M. Zobov (INFN LNF), for DAFNE Collaboration Team