Sándor Demes
- Institute for Nuclear Research [Budapest] (ATOMKI)
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demess
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0000-0002-2783-7172
- ResearcherID : http://www.researcherid.com/rid/J-4422-2019
Publications
Publications
Collisional excitation of interstellar chloronium: accurate rate coefficients with astrophysical applications15th European Conference on Atoms Molecules and Photons (ECAMP15), Universität Innsbruck; Congress Center Innsbruck, Jun 2025, Innsbruck, Austria |
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Seminar: State-to-state molecular collisions for astrophysics: towards increasing molecular complexityInvited Seminar, IPR, Univ Rennes, Nov 2025, Rennes, France |
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Collisional rate coefficients for chloronium cation with non-LTE analysis of its interstellar emission linesPhysical and Chemical processes of astrophysical interest: Astrochemistry at the JWST era (PCPAI 2025), Jun 2025, Saint Florent, France |
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Recent advances in the excitation of interstellar polyatomic species in collisions with ground-state and rotationally excited hydrogen moleculeInternational Conference on Molecular Energy Transfer in Complex Systems (iCOMET 2025), University of Szeged, Aug 2025, Szeged, Hungary |
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Complex molecular collisions with implications for astronomy: towards non-LTE modelling of polyatomic interstellar species14th International Meeting on Atomic and Molecular Physics and Chemistry (IMAMPC 2025), CIMAP, Jun 2025, Caen, France |
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Molekula-ütközések reakciók nélkül: az űrkémia szerepe a csillagközi anyag megismerésébenKeMoMo-QSAR 2025 Szimpózium, Szegedi Tudományegyetem, May 2025, Szeged, Hungary |
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Towards non-LTE modelling of large interstellar cyclic species: the collisional excitation of cyclopentadieneConference of the National Program "Physics and Chemistry of the Interstellar Medium" (PCMI2024), Oct 2024, Bordeaux, France |
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Accurate collisional excitation data for non-LTE modelling of large carbon cycles in cold ISM cloudsQuantumGrain Workshop, Jun 2024, Barcelona, Spain |
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Seminar: The role of molecular interactions in interstellar environments and planetary atmosphereInvited Seminar, IP2I (Institut de physique des 2 infinis de Lyon, Université Claude Bernard Lyon 1), Apr 2024, Lyon, France |
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Seminar: Molecular collisions at the service of astronomical observations in interstellar environmentsInvited Seminar, KU Leuven, Apr 2024, Leuven, Belgium |
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Webinar: Fundamental molecular interactions in the service of astrophysics and atmospheric scienceInvited Webinar, Institute for Molecules and Materials (IMM), Radboud University, May 2024, (Online), Netherlands |
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Webinar: Where large molecules are born: towards better understanding the physics of large carbon cycles in spaceInvited Webinar, Early Career Investigators (ECI) Webinar of MD-GAS COST Action (CA18212), Nov 2023, (Online), France |
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Excitation of hot ammonia rotational levels due to collisions with molecular hydrogen4th MD-GAS General Meeting, COST Action MD-GAS (CA18212), Sep 2023, Dubrovnik, Croatia |
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Collision-induced excitation of ammonia in hot interstellar environmentsPhysical and Chemical processes of astrophysical interest: Towards the detection of new species, Jun 2023, Saint-Florent, France |
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Seminar: Molecular collisions from different perspectives - interaction with electrons, ions and diatomic speciesInvited Seminar, CIMAP – ENSICAEN (Centre de recherche sur les ions, les matériaux et la photonique), Jun 2023, Caen, France |
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State-of-the-art laboratory experiments combined with quantum chemistry to study reactive ion-molecule collisions under interstellar conditionsConference of the National Program "Physics and Chemistry of the Interstellar Medium" (PCMI 2022), Oct 2022, Paris, France |
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Investigating ion-molecule reactions at low temperature with uniform supersonic flows26th International Symposium on Gas Kinetics and Related Phenomena, Aug 2022, Rennes, France |
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Collisions réactives entre ions et molécules à basse température : apports des écoulements supersoniques uniformesPlénière du GDR EMIE, Jun 2022, Dunkerque, France |
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Seminar: Collisional excitation and chemical reactivity of polyatomic interstellar moleculesInvited Seminar, Department of Chemistry, Nicolaus Copernicus University in Toruń, Dec 2022, Toruń, Poland |
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Seminar: Molecular collisions - from electron impact to bimolecular reactionsInvited Seminar, Department of Physical Chemistry and Materials Science, University of Szeged, Feb 2022, Szeged, Hungary |
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Is it worth to investigate such phenomena, which are predictable with a good accuracy?TUMLA Philosophy of Astrochemistry Workshop, Jul 2022, Rennes, France |
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Recent advances in collisional excitation of interstellar polyatomic moleculesDEEP-GAS 2022: Dynamics of Energetic & Electronic Processes in molecules and clusters in the GAS phase, Universidad Autónoma de Madrid (UAM), Faculty of Science, Oct 2022, Madrid, Spain. pp.41 |
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Formation et évolution des aérosols dans l’atmosphère de TitanColloque quadriennal du Programme National de Planétologie, Jun 2022, Lyon, France |
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Collision of C<sub>5</sub>H<sub>6</sub> with He: the first modeling of the excitation of a larger cyclic moleculeCollisional excitation of (reactive) astrophysical molecules and its applications, Jun 2022, Saint-Florent, France |
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State-to-state cross sections and rate coefficients for the rotational excitation of polyatomic hydrides in astrophysical environments23rd European Conference on the Dynamics of Molecular Systems (MOLEC 2022), DESY (Hamburg, Germany), Aug 2022, Hamburg, Germany |
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Collisional excitation of H<sub>3</sub>O<sup>+</sup> by H<sub>2</sub> : towards better understanding of interstellar water chemistryChemical processes in Solar-type star forming regions, ACO & DOC; Università degli Studi di Torino, Sep 2021, Torino, Italy |
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Collisional excitation of H<sub>3</sub>O<sup>+</sup> by H<sub>2</sub> and its astrophysical applicationsProcessus physico-chimiques d’intérêt astrophysique : Vers une chimie d’état à état, Jun 2021, Saint-Florent, France |
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Collisional excitation of NH<sub>3</sub> by molecular hydrogen: close-coupling calculations for higher kinetic temperaturesInternational Conference of Young Scientists and Post-Graduate Students IEP-2021, IEP of NASU, May 2021, (Online), Ukraine |
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Collisional excitation of H<sub>3</sub>O<sup>+</sup> by H<sub>2</sub>: new insights into water chemistry in interstellar cloudsJournées SF2A 2021 - Atelier Général du PCMI, Société Française d’Astronomie et d’Astrophysique (SF2A), Jun 2021, (Online), France |
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The excitation of H3O+ by H2: toward new measurements of ionization fraction in the ISMIFISM2021 : The Ionization Fraction of the Interstellar Medium, PCMI & Université Le Havre Normandie, Nov 2021, Le Havre, France |
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Electron-impact excitation of the (4p<sup>5</sup>5s5p) <sup>4</sup>S<sub>3/2</sub> quasimetastable state in RbXXXI International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2015), Jul 2019, Deauville, France. pp.132012, ⟨10.1088/1742-6596/1412/13/132012⟩ |
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Low energy fragments from O<sub>2</sub><sup>+</sup> + H<sub>2</sub> collisions following single and double electron removal from the targetXXXI International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2019), Jul 2019, Deauville, France. pp.162012, ⟨10.1088/1742-6596/1412/16/162012⟩ |
Collisional excitation of H3O+ cations by molecular hydrogenCollisional excitation of hydrides in the interstellar medium, PICS CEHISM, Nov 2020, (Online), Spain |
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Ab initio study of energy characteristics of small polyatomic molecules in threshold electron-impact dissociative ionization processesXXXI International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2019), Jul 2019, Deauville, France. pp.152065, ⟨10.1088/1742-6596/1412/15/152065⟩ |
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Formation of positive and negative ions in the gas phase of D-ribose by low-energy electronsXXXI International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2019), Jul 2019, Deauville, France. pp.132054, ⟨10.1088/1742-6596/1412/13/132054⟩ |
Primary collisional processes in molecules and secondary chemical effects in polymers upon ion impactInternational Conference of Young Scientists and Post-Graduate Students IEP-2019, IEP of NASU, May 2019, Uzhhorod, Ukraine |
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Ion-induced collisional processes and subsequent chemical effects in polymers and their gas-phase molecule analogue: an experimental multi-scale approach1st General Meeting of CA17126 Cost Action, Nov 2018, Madrid, Spain |
The dynamics of the H<sub>3</sub>O<sup>+</sup> + H<sub>2</sub> interaction: state-to-state collisional data with astrophysical applications26th International Symposium on Gas Kinetics and Related Phenomena (GK 2022), Aug 2022, Rennes, France. , pp.138, 2022, Book of Abstracts of GK 2022 |
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Rotational excitation of H<sub>3</sub>O<sup>+</sup> in collision with H<sub>2</sub>Machine Learning and Quantum Computing for Quantum Molecular Dynamics (MLQCDyn) School, Sep 2022, Paris, France. , pp.P1, 2022, MLQCDyn Book of Abstracts |
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Rotational excitation of H3O+ cations by H2: towards new insight into water chemistryPCMI biennal conference, Jul 2020, (Online), France. , 2020 |
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A new 5D potential energy surface for the H3O+ – H2 collisional system1st annual meeting of the MD-GAS COST Action, Feb 2020, Caen, France. , 2020 |
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Elastic Electron Scattering by Halocarbon Radicals in the Independent Atom Model ApproachXXI International Symposium on Electron-Molecule Collisions and Swarms (POSMOL 2019), Jul 2019, Belgrade, Serbia. , Book of abstracts of the POSMOL 2019 conference, pp.90 |
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Fragmentation of Glutamine Molecule by Low-Energy Electron-ImpactXXI International Symposium on Electron-Molecule Collisions and Swarms (POSMOL 2019), Jul 2019, Belgrade, Serbia. , Book of abstracts of the POSMOL 2019 conference, pp.95 |
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Ab Initio Study of Appearance Energies in Electron-Impact Dissociative Ionization Processes of Small Chalcogenide ClustersXXI International Symposium on Electron-Molecule Collisions and Swarms (POSMOL 2019), Jul 2019, Belgrade, Serbia. , Book of abstracts of the POSMOL 2019 conference, pp.91 |
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Theoretical Study of Elastic Electron Scattering by Sulphur Clusters50th Anniversary EGAS conference, Jul 2018, Kraków, Poland. , Book of abstracts of the 50th Anniversary EGAS conference, pp.83 |
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Elastic Electron Scattering by the SF<sub><i>n</i></sub> (<i>n</i> = 1−6) Molecular Systems50th Anniversary EGAS conference, Jul 2018, Kraków, Poland. , Book of abstracts of the 50th Anniversary EGAS conference, pp.82 |
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Electron Capture in O<sup>2+</sup> + H<sub>2</sub> Collisions at a few keV Impact Energies19th International Conference Physics of Highly Charged Ions (HCI 2018), Sep 2018, Lisbon, Portugal. |
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Dielectronic Satellites of the Tl<sup>+</sup> Ion 132.2 nm Resonance Line50th Anniversary EGAS conference, Jul 2018, Kraków, Poland. , Book of abstracts of the 50th Anniversary EGAS conference, pp.84 |
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IAM approach study of elastic electron scattering by the CF<sub>2</sub> , CF<sub>2</sub>Cl and CF<sub>3</sub> molecular systems7th Conference on Elementary Processes in Atomic Systems (CEPAS 2017), Sep 2017, Prague, Czech Republic |
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Kinetic energy distribution of the fragment ions in H<sup>+</sup> C<sub>2</sub>H<sub>6</sub> collision4th XLIC General Meeting, Mar 2017, Prague, Czech Republic. |
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Elastic electron scattering by the CF<sub>3</sub> radical and by the CF<sub>3</sub>Cl, CF<sub>4</sub> molecules in the IAM approach7th Conference on Elementary Processes in Atomic Systems (CEPAS 2017), Sep 2017, Prague, Czech Republic |
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Double electron capture by the O<sup>2+</sup> projectile in collisions with the H<sub>2</sub> molecule7th Conference on Elementary Processes in Atomic Systems (CEPAS 2017), Sep 2017, Prague, Czech Republic |
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Fragmentation of tryptophan molecule by low-energy electron-impactXXIX International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2015), Jul 2015, Toledo, Spain. Journal of Physics: Conference Series, 635 (3), pp.032048, 2015, ⟨10.1088/1742-6596/635/3/032048⟩ |
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Potential electron scattering by the phosphorous systems P<sub><i>n</i></sub> ( <i>n</i> = 1÷3)XXIX International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2015), Jul 2015, Toledo, Spain. 635 (7), pp.072020, 2015, Journal of Physics: Conference Series. ⟨10.1088/1742-6596/635/7/072020⟩ |