NDLI: Charged cores in ionized $\mathsf{{^{4}He}}$ clusters III: A quantum modeling for the collisional relaxation dynamics

Content Provider	Springer Nature Link
Author	Scifoni, E. Bodo, E. Dellepiane, G. Gianturco, F. A.
Copyright Year	2004
Abstract	When a pure 4He droplet is ionized by electron impact, the most abundant fragment detected in mass spectra after ionization is He2 + . All the models that have been proposed thus far to explain the experimental evidence therefore involve the formation of the He2 + molecular ion. The understanding of the interactions between this ion and the surrounding He atoms in the cluster and of their dynamical behavior during cluster break-up is an important element for the modeling of the cluster evolution after the ionization event. In previous works [1,2] we have computed and described the Potential Energy Surface (PES) of the electronic ground state for the He3 + system that provides the required forces between He2 + and He. After ionization He2 + is presumably formed by association of an He + and any of the neutral atoms in the cluster via a 3-body collision process. The ensuing vibrational quenching of the “hot” molecular ion may release the energy necessary to evaporate the entire droplet, or most of it, and give the fragmentation patterns detected by experiments. We present here a model quantum dynamics that generates vibrational deexcitation cross-sections and the corresponding rate coefficients for the collision of He2 + with He. A timescale of the cluster evaporation due to vibrational relaxation is estimated and the present findings are compared with earlier studies on the same system.
Starting Page	363
Ending Page	368
Page Count	6
File Format	PDF
ISSN	14346060
Journal	The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics
Volume Number	30
Issue Number	3
e-ISSN	14346079
Language	English
Publisher	Springer-Verlag
Publisher Date	2004-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Charged cores in ionized $\mathsf{{^{4}He}}$ clusters II: Ab initio calculations for the $\mathsf{{He_{2}^{ + } + He}}$ system and Many-Body fitting of the computed points

Charged cores in ionized He clusters : I: The He He system

Mixed (Ar) $\mathsf{_{n}}$ (N $\mathsf{_{2}}$ ) $\mathsf{_{m}}$ van der Waals clusters created by pick-up technique

Relaxation of photoexcited Na $_\mathsf{3}$ F

Global minima for free $\mathsf{Pt_{N}}$ clusters ( $\mathsf{N = 22{-}56}$ ): a comparison between the searches with a molecular dynamics approach and a basin-hopping algorithm

Abstraction and insertion mechanisms in reactive collisions of H $_\mathsf{2}^\mathsf{ + }$ and D $_\mathsf{2}^\mathsf{ + }$ with O $^\mathsf{-}$

The structures and properties of FeSin/FeSi\hbox{$_{\mathsf{n}}^{+}$}+n/FeSi\hbox{$_{\mathsf{n}}^{-}$}−n (n = 1 ~ 8) clusters

A theoretical study of the Y $\mathsf{_{3}}$ O clusters

Decelerated molecular beams for high-resolution spectroscopy : The hyperfine structure of $\mathsf{^{15}}$ ND $\mathsf{_3}$

Charged cores in ionized $\mathsf{{^{4}He}}$ clusters III: A quantum modeling for the collisional relaxation dynamics

Similar Documents

Charged cores in ionized $\mathsf{{^{4}He}}$ clusters II: Ab initio calculations for the $\mathsf{{He_{2}^{ + } + He}}$ system and Many-Body fitting of the computed points

Charged cores in ionized He clusters : I: The He He system

Mixed (Ar) $\mathsf{_{n}}$ (N $\mathsf{_{2}}$ ) $\mathsf{_{m}}$ van der Waals clusters created by pick-up technique

Relaxation of photoexcited Na $_\mathsf{3}$ F

Global minima for free $\mathsf{Pt_{N}}$ clusters ( $\mathsf{N = 22{-}56}$ ): a comparison between the searches with a molecular dynamics approach and a basin-hopping algorithm

Abstraction and insertion mechanisms in reactive collisions of H $_\mathsf{2}^\mathsf{ + }$ and D $_\mathsf{2}^\mathsf{ + }$ with O $^\mathsf{-}$

The structures and properties of FeSin/FeSi\hbox{$_{\mathsf{n}}^{+}$}+n/FeSi\hbox{$_{\mathsf{n}}^{-}$}−n (n = 1 ~ 8) clusters

A theoretical study of the Y $\mathsf{_{3}}$ O clusters

Decelerated molecular beams for high-resolution spectroscopy : The hyperfine structure of $\mathsf{^{15}}$ ND $\mathsf{_3}$

Charged cores in ionized $\mathsf{{^{4}He}}$ clusters III: A quantum modeling for the collisional relaxation dynamics