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Grant support

This research was supported by the I-Core: the Israeli Excellence Center "Circle of Light" (Grant No. 298/11) and by the Israel Science Foundation (Grant No. 1530/15). A.B.A. acknowledges Dr. Ido Gilari, Dr. Debarati Bhattacharya, and Dr. Arie Landau for helpful discussions and assistance.

Analysis of institutional authors

Ben-Asher, AnaelAuthor

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May 17, 2023
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The boomerang effect in electron-hydrogen molecule scattering as determined by time-dependent calculations

Publicated to:JOURNAL OF CHEMICAL PHYSICS. 146 (20): 204303- - 2017-05-28 146(20), DOI: 10.1063/1.4983726

Authors: Ben-Asher, Anael; Moiseyev, Nimrod;

Affiliations

Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel - Author
Technion Israel Inst Technol, Russell Berrie Nanotechnol Inst, IL-32000 Haifa, Israel - Author
Technion Israel Inst Technol, Schulich Fac Chem, IL-32000 Haifa, Israel - Author

Abstract

The appearance of oscillations in the energy-dependent cross sections of the vibrational excitation nu = 0 -> nu >= 3 of the hydrogen molecule in its electronic ground state as predicted by Muundel, Berman, and Domcke [Phys. Rev. A 32, 181 (1985)] was confirmed in the electron scattering experiments by Allan [J. Phys. B: At. Mol. Phys. 18, L451 (1985)]. These unusual structures were obtained in spite of the extremely short lifetime of H-2(-) in its ro-vibrational states. Based on the standard (Hermitian) time-independent scattering calculations, Horacek et al. [Phys. Rev. A 73, 022701 (2006)] associated these oscillations with the boomerang effect. Here, we show the boomerang effect as developed in time, based on our time-dependent nuclear wavepacket (WP) calculations. The nuclear WP dynamics of H-2(-) is determined using the non-Hermitian quantum mechanics (NH-QM) which enables the use of the Born-Oppenheimer approximation with complex potential energy surfaces. This NH-QM approach, which enables us the association of the nuclear WP dynamics as obtained from the complex potential energy curve of H-2(-) with the evolution of cross section in time, can enlighten the dynamics in other scattering experiments. Published by AIP Publishing.

Keywords

ComplexEnergy-dependenceExceptional pointsFingerprintsFormulationH-2H2PropagationStatesVibrational-excitation

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal JOURNAL OF CHEMICAL PHYSICS due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2017, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Physics and Astronomy (Miscellaneous).

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-08-03:

  • WoS: 7

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-08-03:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 4.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 4 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 0.25.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Israel.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (BEN ASHER, ANAEL) .