Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Ansgar Simonsson"'
Autor:
Moa K. Kristiansson, Kiattichart Chartkunchand, Gustav Eklund, Odd M. Hole, Emma K. Anderson, Nathalie de Ruette, Magdalena Kamińska, Najeeb Punnakayathil, José E. Navarro-Navarrete, Stefan Sigurdsson, Jon Grumer, Ansgar Simonsson, Mikael Björkhage, Stefan Rosén, Peter Reinhed, Mikael Blom, Anders Källberg, John D. Alexander, Henrik Cederquist, Henning Zettergren, Henning T. Schmidt, Dag Hanstorp
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
High-precision measurements are useful to find isotopic shifts and electron correlation. Here the authors measure electron affinity and hyperfine splitting of atomic oxygen with higher precision than previous studies.
Externí odkaz:
https://doaj.org/article/1148f9adc2aa4be4b1a0871f4639fa17
Autor:
Michael Gatchell, Naemi Florin, Suvasthika Indrajith, José Eduardo Navarro Navarrete, Paul Martini, MingChao Ji, Peter Reinhed, Stefan Rosén, Ansgar Simonsson, Henrik Cederquist, Henning T. Schmidt, Henning Zettergren
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 146 (2024)
We have studied the stability of C _59 anions as a function of time, from their formation on femtosecond timescales to their stabilization on second timescales and beyond, using a combination of theory and experiments. The ${{\rm{C}}}_{59}^{-}$ fragm
Externí odkaz:
https://doaj.org/article/70b89d38f5ac498ca36cb3110559fac4
Autor:
Michael Gatchell, João Ameixa, MingChao Ji, Mark H. Stockett, Ansgar Simonsson, Stephan Denifl, Henrik Cederquist, Henning T. Schmidt, Henning Zettergren
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Ion storage rings allow reactions to be studied over orders of magnitude in time, bridging the gap between typical experimental and astronomical timescales. Here the authors observe that polycyclic aromatic hydrocarbon fragments produced upon collisi
Externí odkaz:
https://doaj.org/article/51e04e4c2b6a4004a23b737bf419920f
Autor:
Henning T. Schmidt, Henning Zettergren, Ansgar Simonsson, MingChao Ji, Mark H. Stockett, Stephan Denifl, Michael Gatchell, Henrik Cederquist, João Ameixa
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Nature Communications
Nature Communications
Laboratory studies play a crucial role in understanding the chemical nature of the interstellar medium (ISM), but the disconnect between experimental timescales and the timescales of reactions in space can make a direct comparison between observation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f8bb247999268e236e0c403f0c3c8fd
https://doaj.org/article/51e04e4c2b6a4004a23b737bf419920f
https://doaj.org/article/51e04e4c2b6a4004a23b737bf419920f
Autor:
Hubert, Gnaser, Martin, Martschini, David, Leimbach, Julia, Karls, Dag, Hanstorp, Suvasthika, Indrajith, Mingchao, Ji, Paul, Martini, Ansgar, Simonsson, Henning, Zettergren, Henning T, Schmidt, Robin, Golser
Publikováno v:
The Journal of chemical physics. 157(4)
Spontaneous and photo-induced decay processes of HfF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4b50870c5e94d036a08c5a29fb690e4b
https://pubmed.ncbi.nlm.nih.gov/35922356
https://pubmed.ncbi.nlm.nih.gov/35922356
Autor:
Mathias Poline, Stefan Rosén, MingChao Ji, Ansgar Simonsson, Peter Reinhed, Mats Larsson, Henning T. Schmidt, Richard D. Thomas, Arnaud Dochain, Xavier Urbain, Jon Grumer, Paul S. Barklem, Shaun G. Ard, Nicholas S. Shuman, Albert A. Viggiano
Publikováno v:
Physical Review A. 105
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca268f3851fe8d844d4f1735412a44c3
https://doi.org/10.1103/physreva.105.062825
https://doi.org/10.1103/physreva.105.062825
Autor:
Mats Larsson, Jon Grumer, Paul S. Barklem, Gustav Eklund, Henning Zettergren, Henrik Cederquist, Shaun G. Ard, Stefan Rosén, MingChao Ji, Nicholas S. Shuman, Xavier Urbain, Henning T. Schmidt, Mathias Poline, Albert A. Viggiano, Ansgar Simonsson, Peter Reinhed, Arnaud Dochain, Richard D. Thomas, Mikael Blom
Publikováno v:
Physical Chemistry Chemical Physics. 23:24607-24616
The mutual neutralisation of O+ with O- has been studied in a double ion-beam storage ring with combined merged-beams, imaging and timing techniques. Branching ratios were measured at the collision energies of 55, 75 and 170 (+/- 15) meV, and found t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9efa10412273192ec39cc79c75880de8
https://doi.org/10.1039/d1cp03977f
https://doi.org/10.1039/d1cp03977f
Autor:
Jon Grumer, Gustav Eklund, Anish M. Amarsi, Paul S. Barklem, Stefan Rosén, MingChao Ji, Ansgar Simonsson, Henrik Cederquist, Henning Zettergren, Henning T. Schmidt
We present experimental final-state distributions for Mg atoms formed in Mg+ + D- mutual neutralization reactions at center-of-mass collision energies of 59 +/- 12 meV by using the merged-beams method. Comparisons with available full-quantum results
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1c1a65feb2114a20e28abb9836d0be3
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-467384
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-467384
Autor:
Mathias, Poline, Arnaud, Dochain, Stefan, Rosén, Jon, Grumer, MingChao, Ji, Gustav, Eklund, Ansgar, Simonsson, Peter, Reinhed, Mikael, Blom, Nicholas S, Shuman, Shaun G, Ard, Albert A, Viggiano, Mats, Larsson, Henrik, Cederquist, Henning T, Schmidt, Henning, Zettergren, Xavier, Urbain, Paul S, Barklem, Richard D, Thomas
Publikováno v:
Physical chemistry chemical physics : PCCP. 23(43)
The mutual neutralisation of O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::b372b9ce4e193a15b334c9fb482bde3d
https://pubmed.ncbi.nlm.nih.gov/34726204
https://pubmed.ncbi.nlm.nih.gov/34726204
Autor:
Mark H. Stockett, Michael Gatchell, Anders Källberg, P. K. Najeeb, Jon Grumer, Åsa Larson, Wolf D. Geppert, Klavs Hansen, Henning Zettergren, Paul S. Barklem, Mikael Björkhage, Stefan Rosén, O M Hole, Gustav Eklund, MingChao Ji, P. Löfgren, Peter Reinhed, Henning T. Schmidt, Henrik Hartman, Richard D. Thomas, M. K. Kristiansson, John D. Alexander, Henrik Cederquist, N Kono, Dag Hanstorp, Mikael Blom, E. K. Anderson, Ansgar Simonsson
An overview of recent experimental results of studies of negative atomic and molecular ions in the Double ElectroStatic Ion-Ring ExpEriment, DESIREE is given. Metastable level lifetimes in atomic negative ions have been measured by time-dependent las
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce476549fe5bac2af99ac1662120f66b
http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-36645
http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-36645