In the theory of infrared corrections, Suura made important contributions, essential for many precise measurements involving elementary particles, especially electrons.[3]
... another theme running through Hiroshi’s work and connecting it to the major issues of today’s particle physics is the idea of “particles in loops.” One of his most-quoted results concerns the effect of electron loops in the calculation of the muon’s anomalous magnetic moment aμ ... This leads to a difference between aμ and the corresponding quantity ae for the electron, which was confirmed in beautiful experiments at CERN ... and is still the subject of intense scrutiny ...[3]
He was elected in 1967 a Fellow of the American Physical Society.[4] On June 1, 1994, the University of Minnesota held a colloquium in honor of Hiroshi Suura. After his death, the Physical Society of Japan published a collection of articles as a memorial to him.[3]
Suura, H.; Simmons, L. M. (1966). "Dispersion Relation for the Axial-Vector Vertex and a Sum Rule for the Axial-Vector Coupling-Constant Renormalization". Physical Review. 148 (4): 1579–1582. Bibcode:1966PhRv..148.1579S. doi:10.1103/PhysRev.148.1579.
Johnson, K.; Low, F. E.; Suura, H. (1967). "Radiative Corrections toβDecay and the Quantum Numbers of Fields Underlying Current Algebra". Physical Review Letters. 18 (26): 1224–1225. Bibcode:1967PhRvL..18.1224J. doi:10.1103/PhysRevLett.18.1224.
Rosner, Jonathan L.; Suura, Hiroshi (1969). "General Treatment of ππ → πA1 in the Veneziano Model". Physical Review. 187 (5): 1905–1912. doi:10.1103/PhysRev.187.1905.
Geffen, D. A.; Suura, H. (1977). "Solutions to a gauge-invariant, equal-time two-body wave equation. Light-mass quark-antiquark system". Physical Review D. 16 (11): 3305–3319. Bibcode:1977PhRvD..16.3305G. doi:10.1103/PhysRevD.16.3305.
Suura, H. (1977). "Gauge-Independent Two-Body Amplitudes and Vector Dominance Model of Electromagnetic Form Factors". Physical Review Letters. 38 (17): 927–929. Bibcode:1977PhRvL..38..927S. doi:10.1103/PhysRevLett.38.927.
Suura, H. (1978). "Derivation of a quark-confinement equation in the Hamiltonian formalism of gauge field theories". Physical Review D. 17 (2): 469–482. Bibcode:1978PhRvD..17..469S. doi:10.1103/PhysRevD.17.469.