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  1. We present cryogenic infrared spectra of sodiated β-cyclodextrin [β-CD + Na] + , a common cyclic oligosaccharide, and its main dissociation products upon collision-induced dissociation (CID). We characterize the parent ions using high-resolution ion mobility spectrometry and cryogenic infrared action spectroscopy, while the fragments are characterized by their mass and cryogenic infrared spectra. We observe sodium-cationized fragments that differ in mass by 162 u, corresponding to B n /Z m ions. For the m / z 347 product ion, electronic structure calculations are consistent with formation of the lowest energy 2-ketone B 2 ion structure. For the m / z 509 product ion, both the calculated 2-ketone B 3 and the Z 3 structures show similarities with the experimental spectrum. The theoretical structure most consistent with the spectrum of the m / z 671 ions is a slightly higher energy 2-ketone B 4 structure. Overall, the data suggest a consistent formation mechanism for all the observed fragments.
  2. We report on the status of efforts to improve the reinterpretation of searches and measurements at the LHC in terms of models for new physics, in the context of the LHC Reinterpretation Forum. We detail current experimental offerings in direct searches for new particles, measurements, technical implementations and Open Data, and provide a set of recommendations for further improving the presentation of LHC results in order to better enable reinterpretation in the future. We also provide a brief description of existing software reinterpretation frameworks and recent global analyses of new physics that make use of the current data.