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Benchmarking Theory with an Improved Measurement of the Ionization and Dissociation Energies of H2
2019
Physical Review Letters
The dissociation energy of H_2 represents a benchmark quantity to test the accuracy of first-principles calculations. We present a new measurement of the energy interval between the EF ^1Σ_g^+(v=0,N=1) state and the 54p1_1 Rydberg state of H_2. When combined with previously determined intervals, this new measurement leads to an improved value of the dissociation energy D_0^N=1 of ortho-H_2 that has, for the first time, reached a level of uncertainty that is three times smaller than the
doi:10.1103/physrevlett.122.103002
fatcat:pg77tdfvurbmhkkupsegu6dhti