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26 papers · 1 filter
High-resolution imaging of C + He collisions using Zeeman deceleration and VUV detection
Vikram Plomp, Xu-Dong Wang, François Lique +3
High-resolution measurements of angular scattering distributions provide a sensitive test for theoretical descriptions of collision processes. Crossed beam experiments employing a…
Collisional excitation and non-LTE modelling of interstellar chiral propylene oxide
K. Dzenis, A. Faure, B. A. McGuire +7
The first set of theoretical cross sections for propylene oxide (CH3CHCH2O) colliding with cold He atoms has been obtained at the full quantum level using a high-accuracy potential…
Anomalous HCN emission from warm giant molecular clouds
J. R. Goicoechea, F. Lique, M. G. Santa-Maria
HCN is considered a good tracer of the dense molecular gas that serves as fuel for star formation. However, recent large-scale surveys of giant molecular clouds (GMCs) have detecte…
Rotational excitation of HO cations by para-H: improved collisional data at low temperatures
S. Demes, François Lique, Alexandre Faure +3
The hydronium cation plays a crucial role in interstellar oxygen and water chemistry. While its spectroscopy was extensively investigated earlier, the collisional excitation of H$_…
Pseudospin-phonon pretransitional dynamics in lead halide hybrid perovskites
B. Hehlen, P. Bourges, B. Rufflé +9
The low frequency lattice vibrations and relaxations are investigated in single crystals of the four 3D hybrid organolead perovskites, MAPbBr, FAPbBr, MAPbI, and -FA…
"Twist-Controlled" force amplification \& Spinning tension transition in yarn
Antoine Seguin, Jérôme Crassous
Combining experiments and numerical simulations with a mechanical/statistical model of twisted yarns, we discuss the spinning transition between a cohesion-less assembly of fibers…