Zobrazeno 1 - 10
of 45
pro vyhledávání: '"U, Hechtfischer"'
Publikováno v:
The Journal of chemical physics. 151(4)
We have measured the spectrum of laser photodissociation of OH
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::5b5fb0aaf3c3d54a62dbfff0903ab0e7
https://pubmed.ncbi.nlm.nih.gov/31370545
https://pubmed.ncbi.nlm.nih.gov/31370545
Autor:
Roland Wester, Dirk Schwalm, L. Knoll, Daniel Zajfman, U. Hechtfischer, J. Levin, Alexander Wolf, Michael Lange
Publikováno v:
The Journal of Chemical Physics. 151:044303
We have measured the spectrum of laser photodissociation of OH+ molecular ions to O + H+ and O+ + H fragments for photon energies of 38 100–40 900 cm−1. The OH+ ions were stored as a fast beam (5.50 MeV) in the storage ring TSR for several second
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a92f8cc94c0c9998f5447a64d09bace
https://doi.org/10.1063/1.5098321
https://doi.org/10.1063/1.5098321
Autor:
J. Karthein, Dirk Schwalm, R. von Hahn, Alexander Wolf, A. Becker, Manfred Grieser, Priyadarsini Mishra, Philipp Herwig, Klaus Blaum, Claude Krantz, A. P. O'Connor, Florian Grussie, Holger Kreckel, O. Novotný, K. Spruck, Saira George, Svenja Lohmann, Christian Meyer, J. Göck, Christian Breitenfeldt, Sunil Kumar, E. A. Guerin, S. Saurabh, Stephen Vogel, Roland Repnow, U. Hechtfischer
Publikováno v:
Physical Review Letters. 116
We have studied the photodissociation of CH^{+} in the Cryogenic Storage Ring at ambient temperatures below 10 K. Owing to the extremely high vacuum of the cryogenic environment, we were able to store CH^{+} beams with a kinetic energy of ∼60 keV f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e0d225e13ffec185b4c128f0ae97938
https://doi.org/10.1103/physrevlett.116.113002
https://doi.org/10.1103/physrevlett.116.113002
Autor:
A P, O'Connor, A, Becker, K, Blaum, C, Breitenfeldt, S, George, J, Göck, M, Grieser, F, Grussie, E A, Guerin, R, von Hahn, U, Hechtfischer, P, Herwig, J, Karthein, C, Krantz, H, Kreckel, S, Lohmann, C, Meyer, P M, Mishra, O, Novotný, R, Repnow, S, Saurabh, D, Schwalm, K, Spruck, S, Sunil Kumar, S, Vogel, A, Wolf
Publikováno v:
Physical Review Letters
We have studied the photodissociation of CH+ in the Cryogenic Storage Ring at ambient temperatures below 10 K. Owing to the extremely high vacuum of the cryogenic environment, we were able to store CH+ beams with a kinetic energy of ∼60 keV for sev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::1031cee750af6d671116621a19ca796e
https://hdl.handle.net/11858/00-001M-0000-002A-29D3-8
https://hdl.handle.net/11858/00-001M-0000-002A-29D3-8
Autor:
Dirk Schwalm, Alexander Wolf, M. Scheffel, J. Levin, Zeev Vager, L. Knoll, Daniel Zajfman, M. Mladenovic, Stefan Schmatz, Michael Lange, A. Baer, Roland Wester, U. Hechtfischer
Publikováno v:
The Journal of Chemical Physics. 116:7000-7011
Vibrational relaxation and isomerization of internally excited deuterated formyl and isoformyl cations has been investigated on the time scale of 2 ms to 12 s using the nearly interaction-free environment of an ion storage ring. De-excitation of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8590632e4c6a50c2251964573741252
https://doi.org/10.1063/1.1461812
https://doi.org/10.1063/1.1461812
Autor:
Dirk Schwalm, U. Hechtfischer, J. Levin, Roland Wester, Guido Saathoff, Alexander Wolf, Michael Lange, L. Knoll, Daniel Zajfman
Publikováno v:
Hyperfine Interactions. 127:267-270
When infrared active molecular ions are stored in a heavy ion storage ring, a fast beam of vibrationally and rotationally relaxed molecules can be obtained. This opens up new opportunities for various experimental studies in molecular ion physics, pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f32fe491d22e74a10938d194e54e8146
https://doi.org/10.1023/a:1012612221800
https://doi.org/10.1023/a:1012612221800
Autor:
Xavier Urbain, L. Knoll, Daniel Zajfman, Gerald Gwinner, J. Levin, Michael Lange, Alexander Wolf, Roland Wester, U. Hechtfischer, D. Schwalm
Publikováno v:
Physical Review Letters. 83:4979-4982
Sharp thresholds are observed in the dissociative recombination cross section of vibrationally cold HD+ in the energy range where new channels H(1s) + D(n) [or D(1S) + H(n)] with n > 2 open. The occurrence of these thresholds, not predicted by curren
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de9d452271fae4d1ca8fb81ee193cafa
https://doi.org/10.1103/physrevlett.83.4979
https://doi.org/10.1103/physrevlett.83.4979
Autor:
Roland Wester, U. Hechtfischer, Dirk Schwalm, Z. Amitay, Michael Lange, P. Forck, Alexander Wolf, Ulrich Schramm, M. Schmitt, Daniel Zajfman, J. Linkemann
Publikováno v:
Physical Review Letters. 80:2809-2812
molecular ionplays a central role in the chemistry of the interstellarmedium, steady-state reaction schemes fail to explain itshigh abundance observed in diffuse interstellar clouds andproduction in shock-heated regions [2] has to be invoked.On the o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccfe496bd007c6d21bac219123e781f8
https://doi.org/10.1103/physrevlett.80.2809
https://doi.org/10.1103/physrevlett.80.2809
Autor:
Alexander Wolf, Z. Amitay, Dirk Schwalm, Michael Lange, Roland Wester, L. Knoll, Daniel Zajfman, Xavier Urbain, U. Hechtfischer
Publikováno v:
Physical Review Letters. 79:1829-1832
We present an experimental and theoretical study of the branching ratios in the dissociative recombination of HD+ with low energy electrons. The results give direct insight into the dynamics of the avoided curve crossing process between the dissociat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd909ffa8921edd4193bb65d1facba17
https://doi.org/10.1103/physrevlett.79.1829
https://doi.org/10.1103/physrevlett.79.1829
Autor:
D. Zajfman, R. Repnow, J. Semaniak, S. Rosén, C. Strömholm, M. af Ugglas, M. Schmidt, Sheldon Datz, U. Hechtfischer, R. Wester, W. J. van der Zande, H. Danared, D. Schwalm, M. Grieser, M. Larsson, G. Sundström, A. Wolf, Z. Amitay
Publikováno v:
Physical Review A. 54:R4617-R4620
Asymptotic atomic-state branching ratios for the dissociative recombination of both {sup 3}HeD{sup +} and {sup 4}HeH{sup +} have been studied using the CRYRING and TSR heavy-ion storage rings. The kinetic-energy release in the recombination process w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b7845f4719050d1eda10a7575356f38
https://doi.org/10.1103/physreva.54.r4617
https://doi.org/10.1103/physreva.54.r4617