Luminosity and physics considerations on HL-LHC–and HE-LHC–based μp colliders Umit Kaya, Bora Ketenoglu, Saleh Sultansoy and Frank Zimmermann EPL, 138 2 (2022) 24002 Published online: 19 May 2022 DOI: 10.1209/0295-5075/ac4f98