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Subfemtosecond Control of Molecular Fragmentation by Hard X-Ray Photons
UPMC Univ Paris 06, Sorbonne Univ, CNRS, UMR 7614,Lab Chim Phys Matiere & Rayonnement, F-75005 Paris, France.;Synchrotron SOLEIL, BP 48, F-91192 Gif Sur Yvette, France..
UPMC Univ Paris 06, Sorbonne Univ, CNRS, UMR 7614,Lab Chim Phys Matiere & Rayonnement, F-75005 Paris, France..
UPMC Univ Paris 06, Sorbonne Univ, CNRS, UMR 7614,Lab Chim Phys Matiere & Rayonnement, F-75005 Paris, France.;Synchrotron SOLEIL, BP 48, F-91192 Gif Sur Yvette, France..
UPMC Univ Paris 06, Sorbonne Univ, CNRS, UMR 7614,Lab Chim Phys Matiere & Rayonnement, F-75005 Paris, France..
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2017 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 118, no 21, 213001Article in journal (Refereed) Published
Abstract [en]

Tuning hard x-ray excitation energy along Cl 1s -> sigma* resonance in gaseous HCl allows manipulating molecular fragmentation in the course of the induced multistep ultrafast dissociation. The observations are supported by theoretical modeling, which shows a strong interplay between the topology of the potential energy curves, involved in the Auger cascades, and the so-called core-hole clock, which determines the time spent by the system in the very first step. The asymmetric profile of the fragmentation ratios reflects different dynamics of nuclear wave packets dependent on the photon energy.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2017. Vol. 118, no 21, 213001
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Physical Sciences
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URN: urn:nbn:se:uu:diva-326230DOI: 10.1103/PhysRevLett.118.213001ISI: 000402057800007PubMedID: 28598654OAI: oai:DiVA.org:uu-326230DiVA: diva2:1119623
Available from: 2017-07-04 Created: 2017-07-04 Last updated: 2017-07-04Bibliographically approved

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Piancastelli, Maria Novella

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