Abstract: Invention of the crab waist collision scheme promises increase of luminosity by several orders of magnitude for specially designed collider with respect to conventional. Successful test of the scheme at existent Italian lepton collider DAΦNE increased luminosity three times from 1.5×1032 cm-2s-1 to 4.5×1032 cm-2s-1 and proved the principle of crab waist. The moderate luminosity gain is due to limited possibility to implement all the necessary modifications. Hence, the projects of the new circular colliders exploit the crab waist interaction scheme. This review describes designs of interaction regions for already existent collider DAΦNE and SuperKEKB, for new projects of SuperB in Italy, CTau in Novosibirsk and FCC-ee in CERN. Designers of the new projects (FCC-ee, CEPC in China) continuously improve them; therefore, we describe only known to us present situation.

Cite: Bogomyagkov A. , Levichev E.
Review of Final Focus Designs for Crab Waist Colliders
ICFA Beam Dynamics Newsletter. 2017. V.71. P.50-69.

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