Výsledky vyhledávání - "Xavier Flechard"

Coulomb-explosion imaging of carbon monoxide dimers

Autor: S. Guillous, Amine Cassimi, Xavier Flechard, Benoit Gervais, Mathieu Lalande, Jimmy Rangama, V. Kumar, A. Méry, Wania Wolff

Publikováno v: Physical Review A
Physical Review A, 2021, 103 (4), pp.042813. ⟨10.1103/PhysRevA.103.042813⟩
Physical Review A, American Physical Society 2021, 103 (4), pp.042813. ⟨10.1103/PhysRevA.103.042813⟩
Phys.Rev.A
Phys.Rev.A, 2021, 103 (4), pp.042813. ⟨10.1103/PhysRevA.103.042813⟩

We report on experimental results obtained from collisions of slow highly charged Ar9+ ions with a carbon monoxide dimer (CO)2 target. A COLTRIMS setup and a Coulomb explosion imaging approach are used to reconstruct the structure of the CO dimers. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::078f5648adc6ef2fe666d83872ae2767
https://hal.science/hal-03210399/document

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Investigation of the carbon monoxide dication lifetime using (CO)2 dimer fragmentation

Autor: S. Guillous, A. Méry, Amine Cassimi, Wania Wolff, Xavier Flechard, V. Kumar, Mathieu Lalande, Jimmy Rangama

Publikováno v: Physical Review A
Physical Review A, American Physical Society 2021, 104 (4), pp.042813. ⟨10.1103/PhysRevA.104.042813⟩
Physical Review A, 2021, 104 (4), pp.042813. ⟨10.1103/PhysRevA.104.042813⟩

The fragmentation of carbon monoxide dimers induced by collisions with low energy Ar$^{9+}$ ions is investigated using the COLTRIMS technique. The presence of a neighbor molecule in the dimer serves here as a diagnostic tool to probe the lifetimes of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e1aedb5582a9daaf76a42cffd6a2eed
https://hal.archives-ouvertes.fr/hal-03313237

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Simultaneous measurements of the β -neutrino angular correlation in Ar32 pure Fermi and pure Gamow-Teller transitions using β -proton coincidences

Autor: V. Araujo-Escalona, D. Zákoucký, E. Liénard, P. Ascher, P. Alfaurt, Nathal Severijns, Xavier Flechard, J. Giovinazzo, T. Kurtukian-Nieto, M. Gerbaux, G. Quéméner, M. Versteegen, Dinko Atanasov, S. Grévy, L. Daudin, B. Blank, S. Vanlangendonck

Publikováno v: Physical Review C. 101

We report first time measurements of the beta-neutrino angular correlation based on the kinetic energy shift of protons emitted in parallel or anti-parallel directions with respect to the positron in the beta decay of $^{32}$Ar. This proof of princip

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::28b2486daa31fffa6eadbf67b5b5a8e4
https://doi.org/10.1103/physrevc.101.055501

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Fragmentation Dynamics of Atomic and Molecular Clusters

Autor: A. Méry, C. P. Safvan, Xavier Flechard, D. Zanuttini, S. Guillous, J. Douady, Benoit Gervais, F. Ropars, Amine Cassimi, V. Kumar, Wael Iskandar, Haruo Shiromaru, Jun Matsumoto, E. Jacquet, A. N. Agnihotri, Jimmy Rangama

Publikováno v: Recent Progress in Few-Body Physics ISBN: 9783030323561
Springer Proc.Phys.
22nd International Conference on Few-Body Problems in Physics (FB22)
22nd International Conference on Few-Body Problems in Physics (FB22), Jul 2018, Caen, France. pp.67-73, ⟨10.1007/978-3-030-32357-8_13⟩
Recent Progress in Few-Body Physics-Proceedings of the 22nd International Conference on Few-Body Problems in Physics
Recent Progress in Few-Body Physics-Proceedings of the 22nd International Conference on Few-Body Problems in Physics, pp.67-73, 2020, ⟨10.1007/978-3-030-32357-8_13⟩

We report our results from collisions between multiply charged $Ar^{9+}$ and $Xe^{20+}$ ions and atomic or molecular dimers. In such systems, the presence of a surrounding environment may give rise to specific energy relaxation mechanisms. For at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f5b61170df25231ebdb202a993b7d96
https://doi.org/10.1007/978-3-030-32357-8_13

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Ion induced fragmentation of diatomic molecular clusters

Autor: S. Guillous, C. P. Safvan, F. Ropars, Amine Cassimi, A. Méry, Jimmy Rangama, E. Jacquet, Benoit Gervais, A. N. Agnihotri, Jun Matsumoto, J. Douady, Wael Iskandar, V. Kumar, Haruo Shiromaru, Xavier Flechard, D. Zanuttini

Publikováno v: Journal of Physics: Conference Series
Journal of Physics: Conference Series, IOP Publishing, 2020, 1412, pp.152068. ⟨10.1088/1742-6596/1412/15/152068⟩
J.Phys.Conf.Ser.
31st International Conference on Photonic, Electronic, and Atomic Collisions
31st International Conference on Photonic, Electronic, and Atomic Collisions, Jul 2019, Deauville, France. pp.152068, ⟨10.1088/1742-6596/1412/15/152068⟩
31st International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC31)
31st International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC31), Jul 2019, Deauville, France. pp.152068, ⟨10.1088/1742-6596/1412/15/152068⟩

Synopsis Weakly bound atomic or molecular clusters are of growing interest in the fields of atmospheric science, hadron-therapy or astrophysics. We will present our recent experimental results on the fragmentation of diatomic molecular dimers after i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc6a5c8a2bf84a60d1ab4b3b2b80114d
https://hal.archives-ouvertes.fr/hal-03345840

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The open LPC Paul trap for precision measurements in beta decay

Autor: Dominique Durand, Y. Merrer, M. Herbane, J. C. Thomas, Daniel Rodríguez, X. Fabian, Predrag Ujić, G. Quéméner, F. Mauger, G. Ban, M. Benali, A. Méry, B. M. Retailleau, Oscar Naviliat-Cuncic, E. Liénard, Xavier Flechard, P. Delahaye

Publikováno v: Eur.Phys.J.A
Eur.Phys.J.A, 2019, 55 (6), pp.101. ⟨10.1140/epja/i2019-12777-3⟩
European Physical Journal A
European Physical Journal A, EDP Sciences, 2019, 55 (6), pp.101. ⟨10.1140/epja/i2019-12777-3⟩
The European Physical Journal A
The European Physical Journal A, Springer, 2019, 55 (6), pp.101. ⟨10.1140/epja/i2019-12777-3⟩

The LPCTrap experiment uses an open Paul trap which was built to enable precision measurements in the beta decay of radioactive ions. The initial goal was the precise measurement of the beta-neutrino angular correlation coefficient in the decay of 6H

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5396b4f6d6492c20847340f12920bf83
https://hal.archives-ouvertes.fr/hal-01902850

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The MORA project

Publikováno v: Hyperfine Interactions
Hyperfine Interact.
7th International Conference on Trapped Charged Particles and Fundamental Physics
7th International Conference on Trapped Charged Particles and Fundamental Physics, Sep 2018, Traverse City, United States. pp.63, ⟨10.1007/s10751-019-1611-x⟩

The MORA (Matter's Origin from the RadioActivity of trapped and oriented ions) project aims at measuring with unprecedented precision the D correlation in the nuclear beta decay of trapped and oriented ions. The D correlation offers the possibility t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e43b612e5762fff336e514dca4c06a1
http://urn.fi/URN:NBN:fi:jyu-201906243396

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Developments towards in-gas-jet laser spectroscopy studies of actinium isotopes at LISOL

Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms (ISSN : 0168-583X)
XVIIth International Conference on Electromagnetic Isotope Separators and Related Topics (EMIS2015)
XVIIth International Conference on Electromagnetic Isotope Separators and Related Topics (EMIS2015), May 2015, Grand Rapids, United States. pp.382-387, ⟨10.1016/j.nimb.2015.12.014⟩
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

To study exotic nuclides at the borders of stability with laser ionization and spectroscopy techniques, highest efficiencies in combination with a high spectral resolution are required. These usually opposing requirements are reconciled by applying t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::305bd80fa0954f6f8977060076027414
https://doi.org/10.1016/j.nimb.2015.12.014

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Coulomb over-the-barrier Monte Carlo simulation to probe ion-dimer collision dynamics

Autor: Jun Matsumoto, Jimmy Rangama, Amine Cassimi, Benoit Gervais, S. Guillous, D. Hennecart, A. Leredde, A. Méry, Xavier Flechard, Wael Iskandar, Haruo Shiromaru

Publikováno v: Physical Review A, vol 98, iss 1
Phys.Rev.A
Phys.Rev.A, 2018, 98 (1), pp.012701. ⟨10.1103/PhysRevA.98.012701⟩
Physical Review A
Physical Review A, 2018, 98 (1), pp.012701. ⟨10.1103/PhysRevA.98.012701⟩
Iskandar, W; Fléchard, X; Matsumoto, J; Leredde, A; Guillous, S; Hennecart, D; et al.(2018). Coulomb over-the-barrier Monte Carlo simulation to probe ion-dimer collision dynamics. Physical Review A, 98(1). doi: 10.1103/PhysRevA.98.012701. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/1w07w00w

We present a combined theoretical and experimental study of primary and post-collision mechanisms involved when colliding low energy multiply charged ions with van der Waals dimers. The collision dynamics is investigated using a classical calculation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fa4cc5d9ad3211a66a4c9f1ff96f140
https://escholarship.org/uc/item/1w07w00w

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