Focal Interest
Focal Interest

Charge radius

  1. Proton resonance radii show an early-time plateau and threshold increase
    Theoretical investigation of nuclear charge radii in proton-unbound systems using complex-energy methods, revealing early-time plateau behavior and halolike threshold enhancement.
  2. Atomic hydrogen test agrees with Standard Model prediction
    Ultra-precise measurement of hydrogen's 2S-6P transition resolves conflicting proton radius values and tests quantum electrodynamics to 0.7 parts per trillion, validating the Standard Model.