Near-Threshold Production of , , and at a Fixed-Target Experiment at the Future Ultrahigh-Energy Proton Colliders

Table 1

Beam parameters for the proposed next-generation colliders and the corresponding fixed-target energies along with the boost () and the rapidity shift () between the centre-of-mass frame of the fixed-target collision and the laboratory frame, which identifies to the centre-of-mass frame in the collider mode.

	SppC-1	SppC-2	HE LHC	FCC-hh
Beam energy () [TeV]	20	45	16.5	50
Fixed-target centre-of-mass energy () [GeV]	194	291	176	307
Number of bunches stored	3000	6000	1404 (50 ns spacing)	10600/53000 (25 and 5 ns spacing)
Number of protons () per bunch []			1.3	1/0.2
	103	155	94	163
	5.3	5.7	5.2	5.8