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Featured researches published by A. Gatton.


Physical Chemistry Chemical Physics | 2018

Resonance signatures in the body-frame valence photoionization of CF4

K. Larsen; C. S. Trevisan; R. R. Lucchese; S. Heck; W. Iskandar; E. Champenois; A. Gatton; R. Moshammer; R. Strom; T. Severt; B. Jochim; D. Reedy; M. Weller; Allen Lee Landers; J. B. Williams; Itzik Ben-Itzhak; R. Dörner; Daniel Slaughter; C. W. McCurdy; Th. Weber; T. N. Rescigno

We present a combined experimental and theoretical investigation of the electron dynamics and body-frame angular dependence of valence photo-single ionization of CF4 and subsequent dissociation into CF3+ and F. Ionization from a valence t2 orbital shows overlapping shape resonances close to threshold that couple to the same total symmetry, leading to striking changes in the photoelectron angular distributions when viewed in the body-frame.


Journal of Physics: Conference Series | 2015

Dissociation Dynamics of Doubly Ionized Water Using 57 eV Photons

D Reedy; B. Gaire; Joshua Williams; M Weller; A. Gatton; T. Bauer; K. Henrichs; P. Burzynski; J Sartor; B Berry; R. Doerner; Th. Weber; Allen Lee Landers

We have measured the photoelectron emission and dissociation of water in the gas phase following double photoionization by a 57 eV photon. The momenta of the resulting dication ion fragments and electrons were measured in coincidence with Cold Target Recoil Ion Momentum Spectroscopy (COLTRIMS). The dissociation dynamics following the photoionization process show a marked dependence on both bond angle and kinetic energy release distribution among the fragments.


Physical Review A | 2014

Photo double ionization of ethylene and acetylene near threshold

B. Gaire; Sungyul Lee; D. J. Haxton; P. Pelz; I. Bocharova; F. Sturm; N. Gehrken; M. Honig; M. Pitzer; D. Metz; H-K. Kim; M. Schöffler; R. Doerner; H. Gassert; S. Zeller; J. Voigtsberger; W. Cao; M. Zohrabi; J. B. Williams; A. Gatton; D. Reedy; C. Nook; T. Muller; Allen Lee Landers; C. L. Cocke; I. Ben-Itzhak; T. Jahnke; A. Belkacem; Th. Weber


Physical Review A | 2015

Auger decay and subsequent fragmentation pathways of ethylene following K-shell ionization

B. Gaire; D. J. Haxton; F. Sturm; J. B. Williams; A. Gatton; I. Bocharova; N. Gehrken; M. Schöffler; H. Gassert; S. Zeller; J. Voigtsberger; T. Jahnke; M. Zohrabi; D. Reedy; C. Nook; Allen Lee Landers; A. Belkacem; C. L. Cocke; I. Ben-Itzhak; R. Dörner; Th. Weber


Bulletin of the American Physical Society | 2018

Kinematically complete investigations of the Photo Double Ionization of N2 and O2 near threshold

A. Gatton; I. Bocharova; F. Sturm; B. Gaire; M. Honig; P. Braun; M. Pitzer; D. Metz; H.-K. Kim; W. Cao; J. B. Williams; Allen Lee Landers; Th. Weber


Bulletin of the American Physical Society | 2017

Fingerprints of core-hole localization in the inner shell ionization of carbon tetrachloride

B. Gaire; P. Stammer; A. Gatton; Ben Berry; T. Severt; J. Rist; S. Eckart; J. B. Williams; I. Ben-Itzhak; R. Doerner; Th. Weber


Bulletin of the American Physical Society | 2017

Commission of a new 2-color laser-synchrotron COLTRIMS experiment

A. Gatton; K. Larsen; E. Champenois; N. Shivaram; S. Bakhti; W. Iskander; T. Sievert; D. Reedy; M. Weller; J. B. Williams; Allen Lee Landers; Th. Weber


Bulletin of the American Physical Society | 2017

Cation dynamics of molecular Hydrogen in the presence of a strong laser field, preliminary results

A. Gatton; E. Champenois; K. Larsen; N. Shivaram; S. Bakhti; W. Iskander; T. Sievert; D. Reedy; M. Weller; J. B. Williams; Allen Lee Landers; Th. Weber


Bulletin of the American Physical Society | 2016

Direct Photo Double Ionization of Water and Subsequent Fragmentation

D. Reedy; B. Gaire; A. Gatton; J Sartor; Ben Berry; M. Weller; T. Bauer; P. Burzynski; K. Henrichs; R. Dörner; J. B. Williams; Th. Weber; Allen Lee Landers


Bulletin of the American Physical Society | 2014

Fragmentation pathways of ethylene after core ionization

B. Gaire; I. Bocharova; F. Sturm; N. Gehrken; Daniel J. Haxton; A. Belkacem; Th. Weber; M. Zohrabi; I. Ben-Itzhak; A. Gatton; J. B. Williams; D. Reedy; C. Nook; Allen Lee Landers; H. Gassert; S. Zeller; J. Voigtsberger; T. Jahnke; R. Doerner

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B. Gaire

Lawrence Berkeley National Laboratory

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D. Reedy

University of Nevada

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I. Bocharova

Kansas State University

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T. Jahnke

Goethe University Frankfurt

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A. Belkacem

Lawrence Berkeley National Laboratory

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Th. Weber

Lawrence Berkeley National Laboratory

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F. Sturm

Goethe University Frankfurt

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