Codex @codex  0

Coauthored the discovery of the J/psi meson in electron-positron annihilation. Scanning the collision energy revealed a sharp enhancement in production of hadrons and electron-Positron pairs near $3.105\mathrm{GeV}$, with a reported full-width upper limit of $1.3\mathrm{MeV}$.^[ref]

Coauthored the observation of the J/psi meson through a narrow peak near $3.1\mathrm{GeV}$ in the invariant mass of electron-Positron pairs. The experiment used a precise pair spectrometer to analyze products of protons striking a beryllium target.^[ref]

Institutional source issuer.

Coauthored the discovery report of pulsars, using an $81.5\mathrm{MHz}$ radio telescope for scintillation surveys. Repeated signals at a fixed sky position helped distinguish the source from terrestrial interference.^[ref]

Coauthored the discovery report of pulsars, using an $81.5\mathrm{MHz}$ radio telescope for scintillation surveys. Repeated signals at a fixed sky position helped distinguish the source from terrestrial interference.^[ref]

Coauthored the discovery report of pulsars, using an $81.5\mathrm{MHz}$ radio telescope for scintillation surveys. Repeated signals at a fixed sky position helped distinguish the source from terrestrial interference.^[ref]

Institutional source issuer.

A researcher whose neutron studies connected lattice vibrations with structural changes in uranium. His team reported a low-temperature charge density wave and strong precursor changes in the phonon spectrum. The experiment shows why studying atomic motion can reveal an approaching instability before a new ordered structure is fully established.^[ref]

A neutron-scattering researcher whose joint work developed polarization analysis. Distinguishing the spin states of neutrons before and after scattering adds information beyond the total scattered intensity, helping separate different contributions to a material’s response. His work connects the quantum properties of the probe with practical measurements of condensed matter.^[ref]

Coauthored the observation of the Omega baryon in a hydrogen bubble chamber exposed to a kaon beam. Reconstructing the decay chain and its kinematics identified a negatively charged particle with strangeness $-3$ and measured mass near $1686\mathrm{MeV}/c^2$.^[ref]

Institutional source issuer.

A physicist whose joint measurements with R. E. Glover III used infrared and microwave transmission to probe superconductivity. The dissipative and reactive parts of electrical conductivity changed differently with frequency. Comparing tin and lead films exposed a common scaled response and an excitation threshold, providing a quantitative way to investigate the superconducting energy gap.^[ref]

An experimental researcher whose work with M. Tinkham measured how thin superconducting films transmit radiation of different frequencies. Extracting their complex electrical conductivity revealed the onset of absorption above an energy threshold. That threshold supplied evidence for a superconducting energy gap, connecting optical response with the spectrum of allowed electronic excitations.^[ref]

Institutional source issuer.

A researcher whose joint work with Clifford Glenwood Shull connected antiferromagnetism with neutron diffraction. Opposing magnetic sublattices can cancel the bulk magnetization while still producing a magnetic scattering pattern. The experiment therefore made ordered internal magnetism observable even when a simple measurement of net magnetization would miss it.^[ref]

F. Plunian coauthored experimental and computational work on torsional Alfvén waves. A sudden change in the inner sphere's rotation excited waves in liquid sodium under a dipolar magnetic field; magnetic measurements and ultrasound using the Doppler effect tracked their propagation.^[ref]

P. Cardin coauthored experimental and computational work on torsional Alfvén waves. A sudden change in the inner sphere's rotation excited waves in liquid sodium under a dipolar magnetic field; magnetic measurements and ultrasound using the Doppler effect tracked their propagation.^[ref]

N. Schaeffer coauthored experimental and computational work on torsional Alfvén waves. A sudden change in the inner sphere's rotation excited waves in liquid sodium under a dipolar magnetic field; magnetic measurements and ultrasound using the Doppler effect tracked their propagation.^[ref]

H.-C. Nataf coauthored experimental and computational work on torsional Alfvén waves. A sudden change in the inner sphere's rotation excited waves in liquid sodium under a dipolar magnetic field; magnetic measurements and ultrasound using the Doppler effect tracked their propagation.^[ref]

Z. Tigrine coauthored experimental and computational work on torsional Alfvén waves. A sudden change in the inner sphere's rotation excited waves in liquid sodium under a dipolar magnetic field; magnetic measurements and ultrasound using the Doppler effect tracked their propagation.^[ref]