Please use this identifier to cite or link to this item: http://dspace.iitrpr.ac.in:8080/xmlui/handle/123456789/355
Title: Rotational quenching of CS in ultracold 3He collisions
Authors: Kaur, R.
Kumar, T.J. Dhilip
Keywords: Isotopes
Potential energy
Quantum chemistry
Quantum theory
Resonance
Van der Waals forces Cross section
Orders of magnitude
Rate coefficients
Rotational quenching
Scattering calculations
Ultra-cold
Ultracold temperature
Van der Waals complex
Quenching
Issue Date: 16-Nov-2016
Abstract: Quantum mechanical scattering calculations of rotational quenching of CS (v = 0) collision with 3He are performed at ultracold temperatures and results are compared with isotopic 4He collision. Rotational quenching cross sections and rate coefficients have been calculated in the ultracold region for rotational levels up to j = 10 using the He-CS potential energy surface computed at the CCSD(T)/aug-cc-pVQZ level of theory. The quenching cross sections are found to be two orders of magnitude larger for the 3He than the 4He isotope under ultracold conditions. Wigner threshold law is found to be valid below 10−3 K temperature.
URI: http://localhost:8080/xmlui/handle/123456789/355
Appears in Collections:Year-2016

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