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Sándor Demes

41%
Libre accès
61
Documents
Affiliations actuelles
  • 57111
Identifiants chercheurs
  • IdHAL demess
  • ResearcherId : J-4422-2019
  • ORCID 0000-0002-2783-7172
  • Google Scholar : https://scholar.google.com/citations?user=w-i8PR4AAAAJ&hl=en
  • ResearcherId : http://www.researcherid.com/rid/J-4422-2019
Contact
Site web
  • https://sandordemes.wordpress.com/

Présentation

Publications

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Correction to: An accurate set of H3O+ − H2 collisional rate coefficients for non-LTE modelling of warm interstellar clouds

Sándor Demes , François Lique , Alexandre Faure , Floris F S van der Tak
Monthly Notices of the Royal Astronomical Society, 2024, 527 (2), pp.2573-2574. ⟨10.1093/mnras/stad3281⟩
Article dans une revue hal-04323928v1
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Collision-induced excitation of ammonia in warm interstellar and circumstellar environments

Sándor Demes , François Lique , Jérôme Loreau , Alexandre Faure
Monthly Notices of the Royal Astronomical Society, 2023, 524 (2), pp.2368-2378. ⟨10.1093/mnras/stad1970⟩
Article dans une revue hal-04148649v1
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Hyperfine collisional excitation of ammonia by molecular hydrogen

J Loreau , A Faure , François Lique , Sándor Demes , P Dagdigian
Monthly Notices of the Royal Astronomical Society, 2023, 526 (3), pp.3213-3218. ⟨10.1093/mnras/stad2979⟩
Article dans une revue hal-04248312v1
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An accurate set of H3O+ − H2 collisional rate coefficients for non-LTE modelling of warm interstellar clouds

Sándor Demes , François Lique , Alexandre Faure , Floris F S van der Tak
Monthly Notices of the Royal Astronomical Society, 2023, 518 (3), pp.3593-3605. ⟨10.1093/mnras/stac3221⟩
Article dans une revue hal-03883159v1
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Ionization of glucose and ribose molecules by electron impact

Sándor Demes , A. Zavilopulo , E. Remeta
The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2023, 77 (10), pp.187. ⟨10.1140/epjd/s10053-023-00766-7⟩
Article dans une revue hal-04265977v1
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Theoretical study of elastic electron scattering by zinc atoms in the framework of relativistic optical potential model

Vladimir I Kelemen , Sándor Demes , Eugene Yu Remeta
Journal of Electron Spectroscopy and Related Phenomena, 2023, 266, pp.147365. ⟨10.1016/j.elspec.2023.147365⟩
Article dans une revue hal-04145292v1
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Molecular-rotation-induced splitting of the binary ridge in the velocity map of sub-eV H+ ions ejected from H2 molecules by ion impact

Z. Juhász , S T S Kovács , V. Vizcaïno , P. Herczku , Sándor Demes
Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2023, 107, pp.L010801. ⟨10.1103/PhysRevA.107.L010801⟩
Article dans une revue hal-03953754v1
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Rotational excitation of H3O+ cations by para-H2: improved collisional data at low temperatures

S. Demes , François Lique , A Faure , Floris F S van Der Tak , Claire Rist
Monthly Notices of the Royal Astronomical Society, 2022, 509 (1), pp.1252-1261. ⟨10.1093/mnras/stab3015⟩
Article dans une revue hal-03409153v2
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Kinetics and Branching for the Reactions of N2+ with C3H4 Isomers at Low Temperatures and Implications for Titan’s Atmosphere

Ahmad Mortada , Sophie Carles , S. Demes , Baptiste Joalland , François Lique
ACS Earth and Space Chemistry, 2022, 6 (5), pp.1227-1238. ⟨10.1021/acsearthspacechem.1c00347⟩
Article dans une revue hal-03634107v1

Ionization and fragmentation of valine molecules in the gas phase by electron impact

A. Zavilopulo , A. Bulhakova , S. Demes , E. Yu. Remeta , A. Vasiliev
The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2021, 75 (11), pp.287. ⟨10.1140/epjd/s10053-021-00294-2⟩
Article dans une revue hal-03439273v1
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Electron-impact ionization of the glutamic acid and glutamine molecules

A.M. Zavilopulo , S. Demes , E.Yu. Remeta , A.I. Bulhakova
Ukrainian Journal of Physics, 2021, 66 (9), pp.745. ⟨10.15407/ujpe66.9.745⟩
Article dans une revue hal-03391551v1

Angular distribution and energy spectra of photoelectrons from tetrahydrofuran illuminated by VUV photon source

István Márton , Levente Ábrók , Dávid Nagy , Ákos Kövér , László Gulyás
Journal of Electron Spectroscopy and Related Phenomena, 2021, 249, pp.147070. ⟨10.1016/j.elspec.2021.147070⟩
Article dans une revue hal-03375920v1
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Elastic electron scattering by halocarbon radicals in the independent atom model approach

S. Demes , Vladimir Kelemen , Eugene Remeta
The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2020, 74 (3), pp.57. ⟨10.1140/EPJD/E2020-100529-4⟩
Article dans une revue hal-03038815v1
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An accurate 5D potential energy surface for H3O+ – H2 interaction

S. Demes , F. Lique , A Faure , C. Rist
Journal of Chemical Physics, 2020, 153 (9), pp.094301. ⟨10.1063/5.0015813⟩
Article dans une revue hal-02982686v1
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Inelastic Processes of Electron Interaction with Chalcogens in the Gaseous Phase

O. Shpenik , A. Zavilopulo , E. Remeta , S. Demes , M. Erdevdy
Ukrainian Journal of Physics, 2020, 65 (7), pp.557. ⟨10.15407/UJPE65.7.557⟩
Article dans une revue hal-03038852v1
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Elastic electron scattering by the CF3 radical in the 1–1000 eV energy range

S. Demes , V Kelemen , E Yu Remeta
Journal of Physics B: Atomic, Molecular and Optical Physics, 2017, 50 (13), pp.135201. ⟨10.1088/1361-6455/AA739F⟩
Article dans une revue hal-03038786v1

Electron capture from H2 molecule by He+ ions

Hoda Ghavaminia , Laszlo Gulyas , Laszlo Sarkadi , Erika Bene , S. Demes
The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2017, 71 (8), pp.217. ⟨10.1140/EPJD/E2017-80238-Y⟩
Article dans une revue hal-03038793v1
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Potential Electron Scattering by P2 and P3 Phosphorus Molecules

S. Demes , V.I. Kelemen , E.Yu Remeta
Ukrainian Journal of Physics, 2016, 61 (4), pp.291-300. ⟨10.15407/UJPE61.04.0291⟩
Article dans une revue hal-03038840v1

Fragment appearance energies in dissociative ionization of a sulfur hexafluoride molecule by electron impact

S. Demes , A. Zavilopulo , O. Shpenik , E. Yu. Remeta
Technical Physics / Zhurnal Tekhnicheskoi Fiziki, 2015, 60 (6), pp.830-838. ⟨10.1134/S1063784215060067⟩
Article dans une revue hal-03038849v1
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Ion appearance energies at electron-impact dissociative ionization of sulfur hexafluoride molecule and its fragments

S. Demes , Eugene Yu. Remeta
The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2015, 69 (7), pp.168. ⟨10.1140/EPJD/E2015-50636-4⟩
Article dans une revue hal-03038809v1

Potential electron scattering by the molecule

S. Demes , V. Kelemen , E. Yu. Remeta
Journal of Physical Studies, 2015, 19 (4), pp.4301. ⟨10.30970/JPS.19.4301⟩
Article dans une revue hal-03038874v1

Collision-induced excitation of ammonia in hot interstellar environments

S. Demes , François Lique , Jérôme Loreau , Alexandre Faure
Physical and Chemical processes of astrophysical interest: Towards the detection of new species, Jun 2023, Saint-Florent, France
Communication dans un congrès hal-04148676v1

Excitation of hot ammonia rotational levels due to collisions with molecular hydrogen

S. Demes , François Lique , Jérôme Loreau , Alexandre Faure
4th MD-GAS General Meeting, COST Action MD-GAS (CA18212), Sep 2023, Dubrovnik, Croatia
Communication dans un congrès hal-04324159v1

Where large molecules are born: towards better understanding the physics of large carbon cycles in space

S. Demes , Cheikh Bop , M. Ben Khalifa , J. Cernicharo , M. Agúndez
MD-GAS Early Career Investigators (ECI) Webinar, COST Action MD-GAS (CA18212), Nov 2023, (Online), France
Communication dans un congrès hal-04324209v1

Recent advances in collisional excitation of interstellar polyatomic molecules

S. Demes , François Lique
DEEP-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
Communication dans un congrès hal-03808766v1

Is it worth to investigate such phenomena, which are predictable with a good accuracy?

S. Demes , François Lique
TUMLA Philosophy of Astrochemistry Workshop, Jul 2022, Rennes, France
Communication dans un congrès hal-03721006v1

Formation et évolution des aérosols dans l’atmosphère de Titan

Ludovic Biennier , Sophie Carles , Ahmad Mortada , S. Demes , Francois Lique
Colloque quadriennal du Programme National de Planétologie, Jun 2022, Lyon, France
Communication dans un congrès hal-03715931v1

Collisions réactives entre ions et molécules à basse température : apports des écoulements supersoniques uniformes

Ludovic Biennier , Ahmad Mortada , Sophie Carles , Abdessamad Benidar , Sándor Demes
Plénière du GDR EMIE, Jun 2022, Dunkerque, France
Communication dans un congrès hal-03715929v1

State-to-state cross sections and rate coefficients for the rotational excitation of polyatomic hydrides in astrophysical environments

S. Demes , François Lique
23rd European Conference on the Dynamics of Molecular Systems (MOLEC 2022), DESY (Hamburg, Germany), Aug 2022, Hamburg, Germany
Communication dans un congrès hal-03808482v1

Collision of C5H6 with He: the first modeling of the excitation of a larger cyclic molecule

S. Demes , Cheikh T Bop , François Lique
Collisional excitation of (reactive) astrophysical molecules and its applications, Jun 2022, Saint-Florent, France
Communication dans un congrès hal-03716005v1

State-of-the-art laboratory experiments combined with quantum chemistry to study reactive ion-molecule collisions under interstellar conditions

Sándor Demes , Sophie Carles , Ahmad Mortada , Rafael A Jara-Toro , Baptiste Joalland
Conference of the National Program "Physics and Chemistry of the Interstellar Medium" (PCMI 2022), Oct 2022, Paris, France
Communication dans un congrès hal-03953688v1

Investigating ion-molecule reactions at low temperature with uniform supersonic flows

Ludovic Biennier , Sophie Carles , Ahmad Mortada , Sándor Demes , Baptiste Joalland
26th International Symposium on Gas Kinetics and Related Phenomena, Aug 2022, Rennes, France
Communication dans un congrès hal-03856867v1

Collisional excitation of H3O+ by H2: new insights into water chemistry in interstellar clouds

S. Demes , François Lique , A Faure , Pierre Hily-Blant , Claire Rist
Journées SF2A 2021 - Atelier Général du PCMI, Société Française d’Astronomie et d’Astrophysique (SF2A), Jun 2021, (Online), France
Communication dans un congrès hal-03376473v1

Collisional excitation of NH3 by molecular hydrogen: close-coupling calculations for higher kinetic temperatures

S. Demes , François Lique
International Conference of Young Scientists and Post-Graduate Students IEP-2021, IEP of NASU, May 2021, (Online), Ukraine
Communication dans un congrès hal-03376489v1

The excitation of H3O+ by H2: toward new measurements of ionization fraction in the ISM

S. Demes , François Lique
IFISM2021 : The Ionization Fraction of the Interstellar Medium, PCMI & Université Le Havre Normandie, Nov 2021, Le Havre, France
Communication dans un congrès hal-03440193v1

Collisional excitation of H3O+ by H2 and its astrophysical applications

S. Demes , François Lique , A Faure , Pierre Hily-Blant , Claire Rist
Processus physico-chimiques d’intérêt astrophysique : Vers une chimie d’état à état, Jun 2021, Saint-Florent, France
Communication dans un congrès hal-03376504v1

Collisional excitation of H3O+ by H2 : towards better understanding of interstellar water chemistry

S. Demes , François Lique , A Faure , Pierre Hily-Blant , Claire Rist
Chemical processes in Solar-type star forming regions, ACO & DOC; Università degli Studi di Torino, Sep 2021, Torino, Italy
Communication dans un congrès hal-03376429v1

Collisional excitation of H3O+ cations by molecular hydrogen

S. Demes , François Lique
Collisional excitation of hydrides in the interstellar medium, PICS CEHISM, Nov 2020, (Online), Spain
Communication dans un congrès hal-03375952v1
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Formation of positive and negative ions in the gas phase of D-ribose by low-energy electrons

I Chernyshova , J Kontros , O Shpenik , S. Demes
XXXI International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2019), Jul 2019, Deauville, France. pp.132054, ⟨10.1088/1742-6596/1412/13/132054⟩
Communication dans un congrès hal-03383362v1
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Ab initio study of energy characteristics of small polyatomic molecules in threshold electron-impact dissociative ionization processes

S. Demes , E Remeta
XXXI International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2019), Jul 2019, Deauville, France. pp.152065, ⟨10.1088/1742-6596/1412/15/152065⟩
Communication dans un congrès hal-03383283v1
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Low energy fragments from O2+ + H2 collisions following single and double electron removal from the target

Z Juhász , V Vizcaino , Jean-Yves Chesnel , S.T. S. Kovács , P Herczku
XXXI International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2019), Jul 2019, Deauville, France. pp.162012, ⟨10.1088/1742-6596/1412/16/162012⟩
Communication dans un congrès hal-03345529v1

Primary collisional processes in molecules and secondary chemical effects in polymers upon ion impact

S. Demes , Róbert Huszánk , Sándor Kovács , Péter Herczku , Zoltán Juhász
International Conference of Young Scientists and Post-Graduate Students IEP-2019, IEP of NASU, May 2019, Uzhhorod, Ukraine
Communication dans un congrès hal-03388873v1
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Electron-impact excitation of the (4p55s5p) 4S3/2 quasimetastable state in Rb

V Roman , S. Demes
XXXI International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2015), Jul 2019, Deauville, France. pp.132012, ⟨10.1088/1742-6596/1412/13/132012⟩
Communication dans un congrès hal-03383342v1

Ion-induced collisional processes and subsequent chemical effects in polymers and their gas-phase molecule analogue: an experimental multi-scale approach

S. Demes , Róbert Huszánk , Sándor Kovács , Péter Herczku , Zoltán Juhász
1st General Meeting of CA17126 Cost Action, Nov 2018, Madrid, Spain
Communication dans un congrès hal-03388898v1

Rotational excitation of H3O+ in collision with H2

S. Demes , François Lique
Machine Learning and Quantum Computing for Quantum Molecular Dynamics (MLQCDyn) School, Sep 2022, Paris, France. , pp.P1, 2022, MLQCDyn Book of Abstracts
Poster de conférence hal-03808738v1

The dynamics of the H3O+ + H2 interaction: state-to-state collisional data with astrophysical applications

S. Demes , François Lique
26th International Symposium on Gas Kinetics and Related Phenomena (GK 2022), Aug 2022, Rennes, France. , pp.138, 2022, Book of Abstracts of GK 2022
Poster de conférence hal-03808607v1

A new 5D potential energy surface for the H3O+ – H2 collisional system

S. Demes , François Lique , A Faure , Claire Rist
1st annual meeting of the MD-GAS COST Action, Feb 2020, Caen, France. , 2020
Poster de conférence hal-03376199v1

Rotational excitation of H3O+ cations by H2: towards new insight into water chemistry

S. Demes , François Lique , A Faure , Claire Rist
PCMI biennal conference, Jul 2020, (Online), France. , 2020
Poster de conférence hal-03376211v1

Ab Initio Study of Appearance Energies in Electron-Impact Dissociative Ionization Processes of Small Chalcogenide Clusters

S. Demes , E. Remeta
XXI International Symposium on Electron-Molecule Collisions and Swarms (POSMOL 2019), Jul 2019, Belgrade, Serbia. , Book of abstracts of the POSMOL 2019 conference, pp.91
Poster de conférence hal-03394692v1

Fragmentation of Glutamine Molecule by Low-Energy Electron-Impact

S. Demes , J Tamuliene , L. Baliulyte , L. Romanova , V Vukstich
XXI International Symposium on Electron-Molecule Collisions and Swarms (POSMOL 2019), Jul 2019, Belgrade, Serbia. , Book of abstracts of the POSMOL 2019 conference, pp.95
Poster de conférence hal-03394702v1

Elastic Electron Scattering by Halocarbon Radicals in the Independent Atom Model Approach

S. Demes , V. Kelemen , E. Remeta
XXI International Symposium on Electron-Molecule Collisions and Swarms (POSMOL 2019), Jul 2019, Belgrade, Serbia. , Book of abstracts of the POSMOL 2019 conference, pp.90
Poster de conférence hal-03394686v1

Dielectronic Satellites of the Tl+ Ion 132.2 nm Resonance Line

A.N. Gomonai , S. Demes , A.I. Gomonai , Yu. Hutych , V. Zvenihorodsky
50th Anniversary EGAS conference, Jul 2018, Kraków, Poland. , Book of abstracts of the 50th Anniversary EGAS conference, pp.84
Poster de conférence hal-03394601v1

Electron Capture in O2+ + H2 Collisions at a few keV Impact Energies

S. Demes , Z. Juhász , J. Y. Chesnel , S.T. S. Kovács , P. Herczku
19th International Conference Physics of Highly Charged Ions (HCI 2018), Sep 2018, Lisbon, Portugal.
Poster de conférence hal-03394634v1

Theoretical Study of Elastic Electron Scattering by Sulphur Clusters

S. Demes , V. Kelemen , E. Remeta
50th Anniversary EGAS conference, Jul 2018, Kraków, Poland. , Book of abstracts of the 50th Anniversary EGAS conference, pp.83
Poster de conférence hal-03394587v1

Elastic Electron Scattering by the SFn (n = 1−6) Molecular Systems

S. Demes , V. Kelemen , E. Remeta
50th Anniversary EGAS conference, Jul 2018, Kraków, Poland. , Book of abstracts of the 50th Anniversary EGAS conference, pp.82
Poster de conférence hal-03394584v1

Elastic electron scattering by the CF3 radical and by the CF3Cl, CF4 molecules in the IAM approach

S. Demes , V. Kelemen , E. Remeta
7th Conference on Elementary Processes in Atomic Systems (CEPAS 2017), Sep 2017, Prague, Czech Republic
Poster de conférence hal-03394536v1

Double electron capture by the O2+ projectile in collisions with the H2 molecule

S. Demes , S.T. S. Kovács , P. Herczku , Z. Juhász , E. Bene
7th Conference on Elementary Processes in Atomic Systems (CEPAS 2017), Sep 2017, Prague, Czech Republic
Poster de conférence hal-03394557v1

Kinetic energy distribution of the fragment ions in H+ C2H6 collision

S. Demes , S. Kovács , P. Herczku , Z. Juhasz , B. Sulik
4th XLIC General Meeting, Mar 2017, Prague, Czech Republic.
Poster de conférence hal-03394513v1

IAM approach study of elastic electron scattering by the CF2 , CF2Cl and CF3 molecular systems

S. Demes , V. Kelemen , E. Remeta
7th Conference on Elementary Processes in Atomic Systems (CEPAS 2017), Sep 2017, Prague, Czech Republic
Poster de conférence hal-03394532v1
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Potential electron scattering by the phosphorous systems Pn ( n = 1÷3)

S. Demes , V Kelemen , E Yu Remeta
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⟩
Poster de conférence hal-03038755v1
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Fragmentation of tryptophan molecule by low-energy electron-impact

A Papp , J Tamuliene , L Romanova , V Vukstich , S. Demes
XXIX 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⟩
Poster de conférence hal-03038864v1