Extended Data Fig. 3: Sensitivity of the primordial deuterium abundance to the D(p,γ)3He reaction cross-section as a function of centre-of-mass energy.
From: The baryon density of the Universe from an improved rate of deuterium burning
The greatest sensitivity is obtained around E = 80 keV, where underground measurements are especially effective. The grey area represents the energy region explored at LUNA (see Methods for details).
