@article { ISI:000342209400034,
	title = {Collision dynamics of polyatomic molecules containing carbon rings at low temperatures},
	journal = {JOURNAL OF CHEMICAL PHYSICS},
	volume = {141},
	number = {10},
	year = {2014},
	month = {SEP 14},
	pages = {104317},
	publisher = {AMER INST PHYSICS},
	address = {CIRCULATION \& FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA},
	abstract = {We explore the collision dynamics of complex hydrocarbon molecules (benzene, coronene, adamantane, and anthracene) containing carbon rings in a cold buffer gas of He-3. For benzene, we present a comparative analysis of the fully classical and fully quantum calculations of elastic and inelastic scattering cross sections at collision energies between 1 and 10 cm(-1). The quantum calculations are performed using the time-independent coupled channel approach and the coupled-states approximation. We show that the coupled-states approximation is accurate at collision energies between 1 and 20 cm(-1). For the classical dynamics calculations, we develop an approach exploiting the rigidity of the carbon rings and including low-energy vibrational modes without holonomic constraints. Our results illustrate the effect of the molecular shape and the vibrational degrees of freedom on the formation of long-lived resonance states that lead to low-temperature clustering. (c) 2014 AIP Publishing LLC.},
	issn = {0021-9606},
	doi = {10.1063/1.4894793},
	author = {Li, Zhiying and Krems, Roman V. and Heller, Eric J.}
}
