Conceptual design of the muon collider ring lattice

TL;DR

This paper presents a novel muon collider ring lattice design that achieves high luminosity by satisfying strict optical and dynamic requirements through a new local chromatic correction scheme and flexible arc cell design.

Contribution

It introduces a unique three-sextupole local chromatic correction scheme combined with a flexible arc cell design for muon collider lattices.

Findings

Successfully meets low beta at IP (<1 cm) and large momentum acceptance.

Design is robust against beam-beam effects.

Achieves the required dynamic aperture and momentum compaction.

Abstract

Muon collider is a promising candidate for the next energy frontier machine. However, in order to obtain peak luminosity in the 1035/cm2/s range the collider lattice design must satisfy a number of stringent requirements, such as low beta at IP ({\beta}* < 1 cm), large momentum acceptance and dynamic aperture and small value of the momentum compaction factor. Here we present a particular solution for the interaction region optics whose distinctive feature is a three-sextupole local chromatic correction scheme. Together with a new flexible momentum compaction arc cell design this scheme allows to satisfy all the above-mentioned requirements and is relatively insensitive to the beam-beam effect.