PLANCK 1900 
Discovery of a new formula for the energy spectrum of the black body radiation, Planck's radiation law.
PLANCK 1900B 
Quantum hypothesis and explanation of the black body radiation spectrum. Beginnings of the quantum era in physics.
PLANCK 1901 
Quantum hypothesis and final version of Planck's formula for the black body radiation spectrum.
LEBEDEV 1901 
First experimental evidence for pressure of the light on the solid bodies.
RUTHERFORD 1903 
Observation that rays are the flow of doubly positive charged particles.
POINCARE 1905 
Introduction of the relativity principle as an overall law of nature valid for all forces including the gravitational one. Formulation of the equation of the relativistic mechanics and transformation laws for electromagnetic field and current. Establishing of the Lorentz group as a symmetry group of nature. First proposal to modify Newtonian theory of gravity on the basis of the relativity principle. Prediction of the gravitational waves propagating with the speed of light.
EINSTEIN 1905 
Explanation of the photoelectric effect with use of the quantum hypothesis of Planck. Light is a flow of corpuscular objects with definite energies - Planck's quanta of energy.
EINSTEIN 1905B 
Invention of the theory of special relativity. Beginnings of the relativistic era in physics.
EINSTEIN 1905C 
Invention of the theory of special relativity, E = mc2. Beginnings of the relativistic era in physics.
EINSTEIN 1906 
Corpuscular-wave dualism for photons. Explanation of the photoelectric effect using the quantum hypothesis of Planck.
STARK 1909 
First explicit identification of the photon as a genuine elementary particle possessing both energy and momentum.
1910
MILLIKAN 1911 
First conclusive measurement of the charge of the electron.
RUTHERFORD 1911 
Evidence for the atomic nucleus. Rutherford model for atomic structure.
HESS 1912 
Conclusive evidence for the cosmic rays.
WILSON 1912 
Invention of the cloud chamber to visualize tracks of ionizing particles.
CHADWICK 1921 
Evidence for the strong interactions.
COMPTON 1923 
Direct experimental confirmation that the photon is an elementary particle, the Compton effect.
DE BROGLIE 1923 
Suggestion of the corpuscular-wave dualism for electrons - de Broglie waves of matter particles.
DE BROGLIE 1923B 
Suggestion of the corpuscular-wave dualism for electrons. Prediction of diffraction phenomena for electrons.
WILSON 1923 
Experimental confirmation of the ionization process predicted by Compton for a corpuscular photon.
BOSE 1924 
Discovery of new statistical counting rules for light quanta and a new derivation of Planck's radiation law. Known as Bose-Einstein quantum statistics for particles with integer spins.
EINSTEIN 1924 
Extension of the Bose method to the monoatomic gases. Prediction of Bose-Einstein condensation effect.
EINSTEIN 1925 
Extension of the Bose method to the monoatomic ideal gases. Prediction of Bose-Einstein condensation effect and rediscovery of the wave properties of matter particles.
PAULI 1925 
Introduction of an additional two-valued degree of freedom for the atomic electron.
PAULI 1925B 
Discovery of the exclusion principle - the Pauli principle.
UHLENBECK 1925 
Invention of the electron spin hypothesis and the notion of an elementary spin.
HEISENBERG 1925 
Foundation of quantum mechanics, Heisenberg approach.
BORN 1925 
Invention of matrix formalism for the Heisenberg quantum mechanics. Systems with one degree of freedom.
BORN 1926 
Development of matrix formalism for the Heisenberg quantum mechanics. Systems with arbitrary many degrees of freedom.
DAVISSON 1927 
Experimental evidence that the electron moves as a group of de Broglie waves.
DIRAC 1927 
First steps in quantum field theory. Invention of the second quantization method.
DIRAC 1927B 
Foundations of quantum electrodynamics - QED.
DENNISON 1927 
Evidence that proton spin is equal to the electron spin.
ELLIS 1927 
Confirmation that the spectrum is continuous.
ELLIS 1927B 
Further confirmation that the spectrum is continuous.
HEISENBERG 1927 
Heisenberg discovery of the uncertainty principle.
WIGNER 1927B 
Invention of spatial parity as a quantum mechanical conserved quantity.
DAVISSON 1927B 
Discovery of the diffraction of electrons by crystals. Confirmation of the wave properties of moving electrons.
THOMSON 1928 
Confirmation of diffraction of electrons by crystals.
DIRAC 1928 
Discovery of the relativistic wave equation for the electron. Prediction of the magnetic moment of the electron.
GAMOW 1928 
Explanation of decay as a consequence of quantum-mechanical tunneling through a potential barrier.
DIRAC 1928B 
Relativistic wave equation for the electron and theory of the Zeeman effect.
SKOBELZYN 1929 
Birth of cosmic rays particle physics. Observation of energetic cosmic electrons and a shower produced by cosmic ray particle.
BOTHE 1929 
Observation that the cosmic rays at sea level consist mainly of ionizing particles.
BIRGE 1929 
First step in metrology of the general physical constants.
1930
DIRAC 1930 
Introduction of the negative energy electron sea with holes treated as positive electrons. Attempt to identify these holes with protons.
MEITNER 1930 
Firm establishment that the spectrum is continuous.
PAULI 1930 
Proposal for the existence of the neutral fermion emitted in nuclear beta decay - the neutrino.
TAMM 1930 
Difficulties with identifying positive holes with protons in the Dirac theory of electrons and protons. Too small a lifetime of the ordinary atom.
OPPENHEIMER 1930 
First evidence of ultraviolet divergences occurring in the theory of quantum electrodynamics - the self-energy of the electron.
DIRAC 1931 
Prediction of the anti-electron (e+), anti-proton (), and an indication of the possible existence of magnetic monopoles.
LAWRENCE 1931 
Lawrence proposal for cyclotrons.
FOCK 1932 
Description of the space of states for quantum systems with an arbitrary (infinite) number of particles - Fock space.
HEISENBERG 1932 
Suggestion that atomic nuclei are composed of protons and neutrons. Theory of nuclear exchange forces. Invention of nucleon isotopic spin.
BLACKETT 1932 
Confirmation of fast penetrating charged particles in cosmic rays.
LANDAU 1944 
Landau distribution for fast particle energy loss by ionization.
IWANENKO 1944 
Limitation of the maximal energy attainable in a betatron.
MCMILLAN 1945 
Invention of the principle of phase stability for accelerators.
GAMOW 1946 
Gamow indication on the possibility to explain the observed chemical elements abundance-curve by assumption of unequilibrium process of elements formation during a limited interval of time. Birth of the Big Bang model.
MCMILLAN 1946 
Further development of the synchrotron idea.
PONTECORVO 1946 
Proposal for the radiochemical method of detecting the neutrino.
CONVERSI 1947 
Evidence that the muon is not a strong interaction mediator.
KOBA 1947 
Creation of the covariant quantum electrodynamic theory. Tomonaga method.
BROBECK 1947 
First cyclotron based on the phase stability principle - the Berkeley 184 inch synchrocyclotron.
PERKINS 1947 
First indication of the existence of the .
KOBA 1947B 
Creation of the covariant quantum electrodynamic theory. Tomonaga method.
LAMB 1947 
First measurements of the fine structure of the hydrogen atom, the Lamb shift.
PONTECORVO 1947 
First idea about universality of the Fermi weak interactions.
BETHE 1947 
First theoretical calculation of the Lamb shift in non-relativistic QED.
MARSHALL 1947 
Invention of scintillation counters.
KUSCH 1947 
First measurement of g-2 for the electron, preliminary result.
LATTES 1947 
First indication of the existence of decay into .
LATTES 1947B 
Confirmation of the . First evidence for pion decay ±± neutrals.
ROCHESTER 1947 
First evidence for V events. Confirmation of the existence of a charged unstable particle with a mass between those of the muon and proton.
SNELL 1950 
Confirmation of neutron beta decay.
ROBSON 1950B 
Further confirmation of neutron beta decay.
REYNOLDS 1950 
Invention of liquid scintillation counters.
KALLMANN 1950 
Another invention of liquid scintillation counters.
STEINBERGER 1950 
First evidence for the production of the o and for o decay.
CARLSON 1950 
Confirmation of the existence of the o, first estimation of the o lifetime.
LIPPMANN 1950 
Systematic treatment of the application of variational principles to the quantum theory of scattering. Invention of the Lippmann-Schwinger form of the Schrödinger equation.
FEYNMAN 1950 
Mathematical proof of the validity of the Feynman rules for calculations of amplitudes in QED.
LORD 1950 
First evidence for multiple hadron production in nucleon-nucleon interactions. First evidence for the forward jet of secondary particles in hadronic interactions.
PANOFSKY 1951 
Confirmation of the o and o decay. Direct determination of the parity.
BRUECKNER 1951 
Confirmation of the odd parity of the .
GERSHTEIN 1955 
Evidence that strong interactions do not modify the vector coupling constant of beta decay. Analogy between electromagnetic and weak interactions.
SORRELS 1955 
Confirmation of the associated production of strange particles.
CHINOWSKY 1955 
First evidence for the odd parity of the o.
PAIS 1955 
Proposal for the KLKS regeneration experiment.
LEHMANN 1955 
Beginnings of the axiomatic field theory of the S-matrix.
CONVERSI 1955 
Invention of flash tube chambers.
DAVIES 1955 
Measurements of charged kaon decay branching fractions.
CHODOROW 1955 
First GeV linear accelerator at Stanford.
NISHIJIMA 1955 
Nishijima classification of strange particles with prediction of o and o hyperons.
FUNG 1956 
Confirmation of the equality of the masses of K+ and + mesons.
FITCH 1956 
Confirmation of the equality of the lifetimes of K+ and (K++o) mesons.
BRABANT 1956C 
Confirmation of the existence of the antiproton.
ALVAREZ 1956 
Firm establishment of the K+ lifetime value. Establishment of equality of the lifetimes of K+ (K++ neutral), (K++o), and + (K+++) mesons.
FRY 1956 
Confirmation of the existence of the KL.
LEE 1956 
Proposals to test spatial parity conservation in weak interactions.
CORK 1956 
First evidence for the antineutron.
LEE 1956B 
Invention of G-parity for nonstrange mesons.
BOGOLYUBOV 1956 
Development of the renormalization group method in quantum field theory.
LOGUNOV 1956 
Generalization of the renormalization group equations in QED for arbitrary covariant gauge.
GELL-MANN 1956 
Gell-Mann classification of strange particles with prediction of o and o.
SYMANZIK 1956 
Derivation of dispersion relations in field theory for pion nucleon forward scattering amplitude.
BOGOLYUBOV 1956B 
Formulation of the Bogolyubov axiomatic approach to the local quantum field theory. Derivation of dispersion relations in field theory for pion nucleon scattering amplitude, general case.
SAKATA 1956 
Invention of composite model for hadrons based on three basic elements.
IOFFE 1957 
Indication of the possibility of charge conjugation violation in weak interactions.
PLANO 1957 
Confirmation of the existence of the o hyperon. First measurement of the o mass.
SALAM 1957 
Postulation of 5 invariance for the weak interaction Lagrangian. Two-component theory of neutrino.
BARKAS 1957 
Confirmation of antiproton-nucleon annihilation.
WU 1957 
First evidence for parity nonconservation in weak decays.
GARWIN 1957 
Confirmation of parity violation in weak decays. Evidence of charge conjugation parity violation in weak interactions. Measurement of the magnetic moment.
PONTECORVO 1958 
Proposal for the possibility of neutrino-antineutrino oscillations.
GOLDHABER 1958C 
First evidence for the negative e helicity (e is left handed).
OKUN 1958 
Prediction of the existence and some properties of the and ' particles on the basis of Sakata model. Invention of the S = Q selection rule.
POMERANCHUK 1958 
Theorem on asymptotic equality of hadron-hadron and antihadron-hadron interaction cross sections.
AGNEW 1958 
Confirmation of the existence of the antineutron.
EISLER 1958 
Failure of universal Fermi interactions in the beta decay of hyperons.
MANDELSTAM 1958 
Dispersion relation in two variables: the Mandelstam representation.
EDWARDS 1958 
Evidence for limited transverse momenta in hadronic jets.
ZELDOVICH 1959 
Prediction of the optical activity of atomic media due to possible weak neutral currents. Prediction of the anapole moments of nuclei, due to weak interactions.
MINAKAWA 1959 
Confirmation of the existence of hadronic jets in high energy collisions: The average PT of hadrons in jets is limited and almost independent of jet energy.
GOLDHABER 1959 
First observation of an enhancement in the production of like-charge pairs of pions with similar momenta.
PLANO 1959 
First direct determination of the parity of the o.
IKEDA 1959 
Introduction of SU(3) symmetry for hadrons. Prediction of the existence of the meson.
LANDAU 1959 
Invention of Landau singularities for perturbative amplitudes.
PONTECORVO 1959 
Proposed experiments to establish distinguishability of e and . Indication on the feasibility of neutrino beams with accelerators.
CHEW 1959 
Method for extraction of pion-pion interactions.
GOLDHABER 1960 
Interpretation of the enhancement in the production of like charge pairs of pions with similar momenta as an influence of Bose-Einstein correlations.
NAMBU 1961 
Nambu-Jona-Lasinio nonlinear model of hadrons.
GLASSER 1961 
First conclusive measurements of the o lifetime.
FROISSART 1961 
Froissart upper bound on the total cross sections of hadronic collisions.
TERNOV 1961 
Prediction of the "radiation self-polarization" effect for electrons moving in magnetic field.
ALSTON 1961B 
First evidence for the K*(892) resonance.
GRIBOV 1961 
Generalization of Regge asymptotics for relativistic scattering amplitudes.
ALSTON 1961E 
First evidence for the (1405 S01) resonance.
NE’EMAN 1961 
Introduction of the SU(3) octet structure of the known mesons and baryons.
XUONG 1961C 
Confirmation of the existence of the meson.
CHEW 1961 
Invention of equivalence of elementary hadrons and hadronic resonances on the basis of Regge trajectories. Invention of the Chew-Frautschi plot to classify hadrons. Invention of the vacuum pomeron trajectory.
PEVSNER 1961 
First evidence for the meson. Confirmation of the meson.
GLASHOW 1961 
First introduction of the neutral intermediate boson.
AGS STAFF 1961 
AGS (30 GeV) at BNL - the first strong focusing proton synchrotron.
DUNAITSEV 1962 
First observation of the + beta decay. First direct experimental evidence for the validity of the CVC hypothesis.
BROWN 1962 
First evidence for + pair production.
CERN 1962 
Confirmation of the existence of the +.
DANBY 1962 
First evidence for the . Evidence for more than one kind of neutrinos.
GELL-MANN 1962 
Introduction of the SU(3) singlet-octet structure of the known mesons and octet-decuplet structure for the baryons. Prediction of the hyperon.
PJERROU 1962 
First evidence for the (1530 P13) resonance.
CHRETIEN 1962 
Confirmation of the existence and evidence for spin zero of the meson.
BERTANZA 1962D 
Confirmation of the existence of the (1530 P13) resonance. First evidence for the resonance.
CHINOWSKY 1962 
Determination of the spin of the K*(892) resonance to be 1.
FRAUTSCHI 1962 
Application of Regge poles to resonances and particles.
SALAM 1962 
Conditions for renormalizability of general gauge theories of massive vector mesons.
AMATI 1962 
Invention of the multiperipheral model to analyze a few and many body hadronic reactions. Demonstration that multiperipheral model is capable to predict qualitatively the general features of elastic scattering, inelastic particles spectra, and topological cross sections.
GOLDSTONE 1961B 
Perturbative and general proofs of the Goldstone theorem.
SALAM 1964 
Lagrangian for the electroweak synthesis, first estimations of the W mass. Salam-Ward version.
BOGOLYUBOV 1965 
Introduction of an additional quantum number (the color) to resolve conflict with Fermi statistics. Explanation of the relations between magnetic moments of baryons.
DORFAN 1965D 
First evidence of the antideuteron.
FITCH 1965B 
Confirmation of KLKS regeneration phenomenon.
ABOV 1965 
First evidence of the spatial-parity non-conservation in weak nuclear interactions.
KIRILLOVA 1965 
Evidence for large real part of the nuclear scattering amplitude.
LOBASHOV 1966 
Confirmation of the spatial parity nonconservation in weak nuclear interactions.
HIGGS 1966 
Higgs mechanism of mass generation for vector gauge fields.
GERSHTEIN 1966 
First cosmological upper bound on the stable neutrino masses sum.
SOLOVIEV 1966 
Invention of the dispersion sum rules for hadronic binary amplitudes.
NAMBU 1966 
Invention of the idea of a vector gluon theory for strong interactions.
GREENBERG 1966 
Three triplet model for hadrons. Beginnings of the quantum chromodynamics - QCD.
SAKHAROV 1967 
First attempt to explain baryonic asymmetry of the observable universe.
BUDKER 1967 
Proposal for electron cooling of the proton and antiproton bunches in storage rings.
DORFAN 1967 
First evidence for CP violation in KL±± decays.
BENNETT 1967 
Evidence for CP violation in semileptonic decays of the KL.
WEINBERG 1967 
Lagrangian for the electroweak synthesis, first estimations of the W and Z masses.
KIBBLE 1967 
Extension of the Higgs mechanism of mass generation for non-Abelian gauge field theories. Higgs-Kibble mechanism.
FADDEEV 1967 
Faddeev-Popov method for construction of Feynman rules for Yang-Mills type of gauge theories.
LOGUNOV 1967 
Generalization of the dispersion sum rules to non-decreasing hadronic amplitudes.
LOGUNOV 1967B 
First derivation of asymptotic bounds on the behavior of the one particle inclusive differential cross sections from general principles.
SALAM 1968 
Lagrangian for the electroweak synthesis. Salam-Ward version.
CHARPAK 1968 
Invention of multiwire proporional chambers.
FEYNMAN 1969 
Proposal for scaling behavior of the inclusive spectra of produced hadrons. Birth of the partonic picture of hadron collisions. Precise formulation of exclusive and inclusive experiments dichotomy.
BUSHNIN 1969 
First conclusive evidence for scale invariance in hadronic inclusive experiments.
BEZNOGIKH 1969 
Experimental evidence for the increasing diffraction slope parameter.
BINON 1969 
Confirmation of the antimatter production in hadron nucleus collisions.
BJORKEN 1969B 
Explanation of Bjorken scaling with use of the parton model.
1970
GLASHOW 1970 
Introduction of lepton-quark symmetry, proposal of a fourth (charmed) quark.
BINON 1970B 
Confirmation of scale invariance phenomena in hadronic inclusive experiments.
CHRISTENSON 1970 
First observation of the high mass muon pairs in hadron collisions - prototype of the experiments which lead to the discovery of the J /(1S) (Ting) and (1S) (Herb) as well as "Drell-Yan'' analyses of quark structure functions.
DENISOV 1971F 
First experimental indication of the rising total hadronic cross sections.
’T HOOFT 1971 
Rigorous proofs of renormalizability of the massless Yang-Mills quantum fields theory.
’T HOOFT 1971B 
Rigorous proof of renormalizability of massive Yang-Mills quantum fields theory with spontaneously broken gauge invariance.
GRIBOV 1972 
Invention of Gribov-Lipatov evolution equations for perturbative parton distribution functions in scalar and vector theories. Scaling violation prediction.
MILLER 1972B 
Firm establishment of Bjorken scaling behavior.
’T HOOFT 1972 
Universal regularization and renormalization method for gauge fields theories. I.
’T HOOFT 1972B 
Universal regularization and renormalization method for gauge fields theories. II.
KOBAYASHI 1973B 
Observation that CP violation can be accommodated in the standard electroweak model only if there are at least six quark flavours.
AMALDI 1973E 
Confirmation of rising total hadronic cross sections.
AMENDOLIA 1973B 
Further confirmation of rising total hadronic cross sections.
GROSS 1973 
Discovery of the "asymptotic freedom'' property of interacting Yang-Mills field theories.
POLITZER 1973 
Discovery of the "asymptotic freedom'' property of interacting Yang-Mills field theories.
ALPER 1973G 
Observation of high transverse momentum hadrons at the CERN Intersecting Storage Rings.
BANNER 1973B 
Observation of high transverse momentum hadrons at the CERN Intersecting Storage Rings.
BUESSER 1973 
Firm establishment of high transverse momentum hadrons effect at the CERN Intersecting Storage Rings.
WEINBERG 1973 
Final formulation of QCD and the Standard Model Lagrangian.
FRITZSCH 1973 
Invention of the QCD Lagrangian of Yang-Mills type.
BANNER 1983B 
First evidence for the production of the charged intermediate bosons W+ and W.
AUBERT 1983 
Evidence for difference between structure functions of bound and free nucleons - EMC effect.
ARNISON 1983D 
First evidence for the neutral intermediate boson Zo.
BODEK 1983 
Confirmation for difference between structure functions of bound and free nucleons - EMC effect.
ARNISON 1984C 
Confirmation of W+ and W production. First observation of W±± decays.
ARTAMONOV 1984B 
Implementation of the resonance depolarization method of the beams energy calibration to the high precision measurements of heavy e+e resonances.
ARNISON 1984G 
Confirmation of Zo boson production. Observation of Zo+ decay.