Open AccessStudy of isotope effect in20Ne(34Ne)-18Na2(23Na2,37Na2) low-temperature collisions
Author(s) -
臧华平,
李文峰,
令狐荣锋,
程新路,
Yang Dong
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.050303
Subject(s) - excitation , atomic physics , physics , collision , ellipsoid , quantum , isotope , rotational energy , nuclear physics , quantum mechanics , computer security , astronomy , computer science
Multiple ellipsoid model is applied to the20Ne,34Ne-18Na2,23Na2 and37Na2collision systems. The integral cross-sections for rotational excitation and total collision cross-sections at the incident energy of 190 meV are calculated. Moreover, at the related incident energy, the contributions of different regions of the potential to the integral cross-sections of rotational excitation for20Ne-18Na2,23Na2 and37Na2 collision systems are investigated. By analyzing the differences of these integral cross-sections, the change rules of the integral cross sections with the change of rotational angular quantum number of Na2 molecule, as well as with the change of the reduced mass of symmetric isotopic substituted system are obtained.