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   Long, A. M. ; Adachi, T. ; Beard, M. ; Berg, G. P. ; Couder, M. ; deBoer, R. J. ; Dozono, M. ; Görres, J. ; Fujita, H. ; Fujita, Y. ; et al ( May 2018 , Physical Review C)
2. Neutron-hole states in 45 Ar from 1 H( 46 Ar,  d )  45 Ar reactions

   https://doi.org/10.1103/PhysRevC.88.017604  

   Lu, F. ; Lee, Jenny ; Tsang, M. B. ; Bazin, D. ; Coupland, D. ; Henzl, V. ; Henzlova, D. ; Kilburn, M. ; Lynch, W. G. ; Rogers, A. M. ; et al ( July 2013 , Physical Review C)
3. The 41 Ar(n,y) 42 Ar reaction

   https://doi.org/10.1051/epjconf/202328401037  

   Sahoo, R. N. ; Paul, M. ; Köster, U. ; Scott, R. ; Tessler, M. ; Zylstra, A. ; Avila, M. L. ; Dickerson, C. ; Jayatissa, H. ; Kohen, M.S. ; et al ( January 2023 , EPJ Web of Conferences)

   Mattoon, C.M. ; Vogt, R. ; Escher, J. ; Thompson, I. (Ed.)

   The cross-section of the thermal neutron capture⁴¹Ar(n,γ)⁴²Ar(t_1/2=32.9 y) reaction was measured by irradiating a⁴⁰Ar sample at the high-flux reactor of Institut Laue-Langevin (ILL) Grenoble, France. The signature of the two-neutron capture has been observed by measuring the growth curve and identifying the 1524.6 keV γ-lines of the shorter-lived⁴²K(12.4 h) β⁻daughter of⁴²Ar. Our preliminary value of the⁴¹Ar(n,γ)⁴²Ar thermal cross section is 240(80) mb at 25.3 meV. For the first time, direct counting of⁴²Ar was performed using the ultra-high sensitivity technique of noble gas accelerator mass spectrometry (NOGAMS) at Argonne National Laboratory, USA.

    

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4. Stellar Ar36,38(n,γ)Ar37,39 Reactions and Their Effect on Light Neutron-Rich Nuclide Synthesis

   https://doi.org/10.1103/PhysRevLett.121.112701  

   Tessler, M. ; Paul, M. ; Halfon, S. ; Meyer, B. S. ; Pardo, R. ; Purtschert, R. ; Rehm, K. E. ; Scott, R. ; Weigand, M. ; Weissman, L. ; et al ( September 2018 , Physical Review Letters)
5. Automated Construction of Potential Energy Surfaces Suitable to Describe van der Waals Complexes With Highly-Excited Nascent Molecules: The Rotational Spectra of Ar–CS( v ) and Ar–SiS( v )

   https://doi.org/10.1021/acs.jpca.0c02685  

   Quintas-Sánchez, Ernesto ; Dawes, Richard ; Lee, Kelvin ; McCarthy, Michael C ( May 2020 , The Journal of Physical Chemistry A)

   Some reactions produce extremely hot nascent-products which nevertheless can form sufficiently long-lived van der Waals (vdW) complexes—with atoms or molecules from a bath gas—as to be observed via microwave spectroscopy. Theoretical calculations of such unbound resonance-states can be much more challenging than ordinary bound-state calculations depending on the approach employed. One encounters not only the floppy, and perhaps multi-welled potential energy surface (PES) characteristic of vdWs complexes, but in addition must contend with excitation of the intramolecular modes and its corresponding influence on the PES. Straightforward computation of the (resonance) rovibrational levels of interest, involves the added complication of the unbound nature of the wavefunction, often treated with techniques such as introducing a complex absorbing potential. Here, we have demonstrated that a simplified approach of making a series of vibrationally effective PESs for the intermolecular coordinates—one for each reaction product vibrational quantum number of interest—can produce vdW levels for the complex with spectroscopic accuracy. This requires constructing a series of appropriately weighted lower-dimensional PESs for which we use our freely available PES-fitting code AUTOSURF. The applications of this study are the Ar–CS and Ar–SiS complexes, which are isovalent to Ar–CO and Ar–SiO, the latter of which we considered in a previously reported study. Using a series of vibrationally effective PESs, rovibrational levels and predicted microwave transition frequencies for both complexes were computed variationally. A series of shifting rotational transition frequencies were also computed as a function of the diatom vibrational quantum number. The predicted transitions were used to guide and inform an experimental effort to make complementary observations. Comparisons are given for the transitions that are within the range of the spectrometer and were successfully recorded. Calculations of the rovibrational level pattern agree to within 0.2 % with experimental measurements. 

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