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1. Probing the Electronic Manifold of MgCl with Millimeter-Wave Spectroscopy and Theory: (3) ² Σ ⁺ and (4) ² Σ ⁺ States

   https://doi.org/10.1021/acs.jpca.4c05458  

   Herman, T_J; Ravi, R.; Schuurman, M_S; DeYonker, N_J; Field, R_W; Ziurys, L_M (November 2024, The Journal of Physical Chemistry A)
2. The Stark Effect, Zeeman Effect, and Transition Dipole Moments for the B ² Σ ⁺ − X ² Σ ⁺ Band of Aluminum Monoxide, AlO

   https://doi.org/10.3847/1538-4357/ab6327  

   Bai, Xilin; Steimle, Timothy C. (February 2020, The Astrophysical Journal)
3. A computational and spectroscopic study of MgCCH (X ² Σ ⁺ ): towards characterizing MgCCH ⁺

   https://doi.org/10.1080/00268976.2023.2267135  

   Burns, Joseph E.; Cheng, Qianyi; Fortenberry, Ryan C.; Sun, Ming; Zack, Lindsay N.; Zaveri, Trishal; DeYonker, Nathan J.; Ziurys, Lucy M. (October 2023, Molecular Physics)

   New computational and experimental studies have been carried out for the MgCCH radical in its X2Σ+ state. Coupled cluster theory with single, double, and perturbative triples, CCSD(T), was used in conjunction with post-CCSD(T) and scalar relativistic additive corrections to compute vibrational quartic force fields for this molecule. From the quartic force fields, higher-order spectroscopic properties, including rotational constants, were obtained. In tandem, the five lowest energy rotational transitions for MgCCH, N = 1→0 through N = 5→4, were measured for the first time using Fourier transform microwave/millimeter wave methods in the frequency range 9 -50 GHz. The radical was created in the Discharge Assisted Laser Ablation Source (DALAS) developed in the Ziurys group. A combined fit of these data with previous millimeter direct absorption measurements have yielded the most accurate rotational constants for MgCCH to date. The computed principle rotational constant lies within 1.51-1.65 MHz of the experimental one, validating the computational approach. High-level theory was then applied to produce accurate rovibrational spectroscopic constants for MgCCH+, including a rotational constant of B0 = 5354.5–5359.5 MHz.. These new predictions will further the experimental study of MgCCH+, and aid in the low-temperature characterization of MgCCH, detected towards the circumstellar shell of IRC+10216, a carbon-rich star. 

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4. Study of the ⁴⁴ Ti(α, p) ⁴⁷ V reaction rate using high-precision ⁵⁰ Cr(p, t) ⁴⁸ Cr measurements

   https://doi.org/10.1088/1742-6596/2586/1/012106  

   Binda, S D; Adsley, P; Long, A M; Berg, G; Brümmer, J W; Couder, M; Görres, J; Kamimota, M; Khumalo, N; Köhne, M; et al (September 2023, Journal of Physics: Conference Series)

   Abstract The abundance and distribution of⁴⁴Ti tells us about the nature of the core-collapse supernovae explosions. There is a need to understand the nuclear reaction network creating and destroying⁴⁴Ti in order to use it as a probe for the explosive mechanism. The⁴⁴Ti(α, p)⁴⁷V reaction is a very important reaction and it controls the destruction of⁴⁴Ti. Difficulties with direct measurements have led to an attempt to study this reaction indirectly. Here, the first step of the indirect study which is the identification of levels of the compound nucleus⁴⁸Cr is presented. A 100-MeV proton beam was incident on a⁵⁰Cr target. States in⁴⁸Cr were populated in the⁵⁰Cr(p, t)⁴⁸Cr reaction. The tritons were momentum-analysed in the K600 Q2D magnetic spectrometer at iThemba LABS. 

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5. Signatures of Non-universal Quantum Dynamics of Ultracold Chemical Reactions of Polar Alkali Dimer Molecules with Alkali Metal Atoms: Li( ² S) + NaLi( a ³ Σ ⁺ ) → Na( ² S) + Li ₂ ( a ³ Σ _u ⁺ )

   https://doi.org/10.1021/acs.jpclett.3c00159  

   Morita, Masato; Kendrick, Brian K.; Kłos, Jacek; Kotochigova, Svetlana; Brumer, Paul; Tscherbul, Timur V. (April 2023, The Journal of Physical Chemistry Letters)