Alternative scenarios for the LHC based electron-proton collider

TL;DR

This paper explores alternative designs for an electron-proton collider based on the LHC, highlighting potential higher energies and luminosities for advancing QCD research and new physics discovery.

Contribution

It proposes new collider configurations, including a twin linear collider and an e-ring, with estimates of their luminosities and energy capabilities.

Findings

ERLC can achieve luminosities exceeding 10^{34} cm^{-2}s^{-1}.

Alternative e-ring design can reach 4.2x10^{33} cm^{-2}s^{-1} luminosity.

Proposed colliders can enhance QCD studies and new physics searches.

Abstract

Construction of the ERLC (twin LC) collider tangential to LHC will give opportunity to investigate ep collisions at essentially higher center-of-mass energies than ERL50 and LHC based ep collider. Luminosity estimations show that values well exceeding 10^{34} cm^{-2}s^{-1} can be achieved for ERLC and HL-LHC based ep colliders. Certainly, proposed ep colliders have great potential for clarifying QCD basics and new physics search in addition to providing precise PDFs for adequate interpretation of LHC experimental data. Another alternative to the ERL50 is to construct an e-ring with the same energy and length. In this case, 4.2x10^{33} cm^{-2}s^{-1} luminosity can be reached. The advantage of this option is that the {\mu}-ring can be installed instead of the e-ring as a next stage, which will allow it to reach a much higher center of mass energy.