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1. Measurement of the ratio of the scalar polarizability to the vector polarizability for the $6s{}^{2}S_{1/2}\to 7s{}^{2}S_{1/2}$ transition in cesium

   https://doi.org/10.1103/PhysRevA.109.062809  

   Quirk, Jonah A; Tanner, Carol E; Elliott, D S (June 2024, Physical Review A)

   We report measurements of the ratio of the scalar polarizability $$\alpha$$ to the vector polarizability $$\beta$$ for the $$6s ^2S_{1/2} \rightarrow 7s ^2S_{1/2}$$ transition in atomic cesium. These measurements are motivated by a discrepancy between the values of the vector transition polarizability as determined using two separate methods. In the present measurement, we use a two-pathway, coherent-control technique in which we observe the interference between a two-photon interaction driven by infrared light at 1079 nm and a linear Stark-induced interaction driven by the mutually-coherent second harmonic of this infrared beam at 540 nm. The result of our measurements is $$\alpha/\beta = -9.902 \: (9)$$, in good agreement with the previous determination of this ratio. This measurement, critical to the study of atomic parity violation in cesium, does not reduce the discrepancy between the two methods for the determination of the vector polarizability $$\beta$$ for this transition. 

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2. Lifetimes of the Metastable $6\mathrm{d}{}^2{\mathrm{D}}_{5/2}$ and $6\mathrm{d}{{}^2\mathrm{D}}_{3/2}$ States of ${\mathrm{Ra}}^{+}$

   https://doi.org/10.1103/5754-4cbv  

   Li, Haoran; Dan, Huaxu; Fan, Mingyu; Kofford, Spencer; Kwapisz, Robert; Ready, Roy A; Sawhney, Akshay; Brzeczek, Merrell; Holliman, Craig; Jayich, Andrew M; et al (August 2025, Physical Review Letters)

   We report lifetime measurements of the metastable 6d 2D5=2 and 6d 2D3=2 states of Raþ. The measured lifetimes, τ5 ¼ 303.8ð1.5Þ ms and τ3 ¼ 642ð9Þ ms, are important for optical frequency standards and for benchmarking high-precision relativistic atomic theory. Independent of the reported measurements, the D state lifetimes were calculated using the coupled-cluster single double triple method, in which the coupled- cluster equations for both core and valence triple excitations were solved iteratively. The method was designed for precise prediction of atomic properties, especially for heavy elements, where relativistic and correlation corrections become large, making their treatment more challenging. This Letter presents the first tests of the method for transition properties. Our prediction agrees with experimental values within the uncertainties. The ability to accurately predict the atomic properties of heavy elements is important for many applications, from tests of fundamental symmetries to the development of optical clocks. 

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3. Production of $\left(\text{anti-}\right){}^3\mathrm{He}$ and $\left(\text{anti-}\right){}^3\mathrm{H}$ in $p\text{-Pb}$ collisions at $\sqrt{s_{NN}}=5.02$ TeV

   https://doi.org/10.1103/PhysRevC.101.044906  

   Acharya, S.; Adamová, D.; Adler, A.; Adolfsson, J.; Aggarwal, M. M.; Aglieri Rinella, G.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; et al (April 2020, Physical Review C)
4. Measurement of the hyperfine coupling constants and absolute energies of the $12s {}^2{S}_{1/2}, 13s {}^2{S}_{1/2}$ , and $11d {}^2{D}_J$ levels in atomic cesium

   https://doi.org/10.1103/PhysRevA.105.022819  

   Quirk, Jonah A; Damitz, Amy; Tanner, Carol E; Elliott, D S (February 2022, Physical Review A)

   We report measurements of the absolute energies of the hyperfine components of the $$12s \ ^2S_{1/2}$$ and $$13s \ ^2S_{1/2}$$ levels of atomic cesium, $$^{133}$$Cs. Using the frequency difference between these components, we determine the hyperfine coupling constants for these states, and report these values with a relative uncertainty of $$\sim$$0.06\%. We also examine the hyperfine structure of the $$11d \ ^2D_{J}$$ ($J=3/2, 5/2$) states, and resolve the sign ambiguity of the hyperfine coupling constants from previous measurements of these states. We also derive new, high precision values for the state energies of the $$12s \ ^2S_{1/2}$$, $$13s \ ^2S_{1/2}$$ and $$11d \ ^2D_{J}$$ states of cesium. 

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5. Magnetic ground state of the one-dimensional ferromagnetic chain compounds $M{\left(\mathrm{NCS}\right)}_2{\left(\mathrm{thiourea}\right)}_2$ ( $M=\text{Ni},\text{Co}$ )

   https://doi.org/10.1103/PhysRevMaterials.5.034401  

   Curley, S. P.; Scatena, R.; Williams, R. C.; Goddard, P. A.; Macchi, P.; Hicken, T. J.; Lancaster, T.; Xiao, F.; Blundell, S. J.; Zapf, V.; et al (March 2021, Physical Review Materials)

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