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The destruction of 3HeT+ in collisions with tritium: a dynamical study

The dynamics of the T + 3HeT+(v = 0, j = 0) → T2+ + 3He reaction has been theoretically investigated by means of quantum, statistical and quasi-classical methods on a recently refined potential energy surface. Integral cross sections, rotational distributions, differential cross sections and rate co...

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Bibliographic Details
Main Authors: Sahoo, Jayakrushna (Author) , Bossion, Duncan (Author) , Spanier, Felix (Author) , González-Lezana, Tomás (Author) , Scribano, Yohann (Author)
Format: Article (Journal)
Language:English
Published: 03 Feb 2026
In: Physical chemistry, chemical physics
Year: 2026, Volume: 28, Issue: 10, Pages: 6323-6330
ISSN:1463-9084
DOI:10.1039/D5CP03908H
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1039/D5CP03908H
Verlag, kostenfrei, Volltext: https://pubs.rsc.org/en/content/articlelanding/2026/cp/d5cp03908h
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Author Notes:Jayakrushna Sahoo, Duncan Bossion, Felix Spanier, Tomás González-Lezana and Yohann Scribano
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Summary:The dynamics of the T + 3HeT+(v = 0, j = 0) → T2+ + 3He reaction has been theoretically investigated by means of quantum, statistical and quasi-classical methods on a recently refined potential energy surface. Integral cross sections, rotational distributions, differential cross sections and rate constants have been obtained. The destruction following the above reaction of 3HeT+, an ionic species formed during the single-β decay of the molecular tritium, is thus studied in detail, and its possible influence on current experiments to estimate the mass of the neutrino discussed. In this sense, values of the rate constant for such a process between 10 and 500 K have been predicted to be around 1.2 × 10−9 cm3 s−1. The thermal rate constant, obtained by considering also the rates for the processes initiated from the five first rotational states 3HeT+(v = 0, j = 1-5), confirms such a value.
Item Description:Zuerst veröffentlicht: 03. Februar 2026
Gesehen am 25.03.2026
Im Titel sind die Zahl "3" und das Pluszeichen hochgestellt
Physical Description:Online Resource
ISSN:1463-9084
DOI:10.1039/D5CP03908H

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