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Kinematically compl...
Kinematically complete experimental study of Compton scattering at helium atoms near the threshold
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- Kircher, Max (författare)
- Goethe Univ Frankfurt, Inst Kernphys, Frankfurt, Germany.
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- Trinter, Florian (författare)
- Deutsch Elektronen Synchrotron DESY, FS PETRA S, Hamburg, Germany.;Max Planck Gesell, Fritz Haber Inst, Mol Phys, Berlin, Germany.
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- Grundmann, Sven (författare)
- Goethe Univ Frankfurt, Inst Kernphys, Frankfurt, Germany.
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- Vela-Perez, Isabel (författare)
- Goethe Univ Frankfurt, Inst Kernphys, Frankfurt, Germany.
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- Brennecke, Simon (författare)
- Leibniz Univ Hannover, Inst Theoret Phys, Hannover, Germany.
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- Eicke, Nicolas (författare)
- Leibniz Univ Hannover, Inst Theoret Phys, Hannover, Germany.
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- Rist, Jonas (författare)
- Goethe Univ Frankfurt, Inst Kernphys, Frankfurt, Germany.
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- Eckart, Sebastian (författare)
- Goethe Univ Frankfurt, Inst Kernphys, Frankfurt, Germany.
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- Houamer, Salim (författare)
- Univ Setif 1, Fac Sci, Dept Phys, LPQSD, Setif, Algeria.
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- Chuluunbaatar, Ochbadrakh (författare)
- Joint Inst Nucl Res, Moscow, Russia.;Mongolian Acad Sci, Inst Math & Digital Technol, Ulaanbaatar, Mongolia.;Peoples Friendship Univ Russia RUDN Univ, Moscow, Russia.
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- Popov, Yuri V. (författare)
- Joint Inst Nucl Res, Moscow, Russia.;Lomonosov Moscow State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia.
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- Volobuev, Igor P. (författare)
- Lomonosov Moscow State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia.
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- Bagschik, Kai (författare)
- Deutsch Elektronen Synchrotron DESY, FS PETRA S, Hamburg, Germany.
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- Piancastelli, Maria Novella (författare)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik,Sorbonne Univ, CNRS, UMR 7614, Lab Chim Phys Mat & Rayonnement, Paris, France.
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- Lein, Manfred (författare)
- Leibniz Univ Hannover, Inst Theoret Phys, Hannover, Germany.
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- Jahnke, Till (författare)
- Goethe Univ Frankfurt, Inst Kernphys, Frankfurt, Germany.
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- Schoeffler, Markus S. (författare)
- Goethe Univ Frankfurt, Inst Kernphys, Frankfurt, Germany.
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- Doerner, Reinhard (författare)
- Goethe Univ Frankfurt, Inst Kernphys, Frankfurt, Germany.
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Goethe Univ Frankfurt, Inst Kernphys, Frankfurt, Germany Deutsch Elektronen Synchrotron DESY, FS PETRA S, Hamburg, Germany.;Max Planck Gesell, Fritz Haber Inst, Mol Phys, Berlin, Germany. (creator_code:org_t)
- 2020-04-13
- 2020
- Engelska.
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Ingår i: Nature Physics. - : Springer Nature. - 1745-2473 .- 1745-2481. ; 16:7, s. 756-760
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Compton scattering is one of the fundamental interaction processes of light with matter. When discovered(1), it was described as a billiard-type collision of a photon 'kicking' a quasi-free electron. With decreasing photon energy, the maximum possible momentum transfer becomes so small that the corresponding energy falls below the binding energy of the electron. In this regime, ionization by Compton scattering becomes an intriguing quantum phenomenon. Here, we report on a kinematically complete experiment studying Compton scattering off helium atoms in that regime. We determine the momentum correlations of the electron, the recoiling ion and the scattered photon in a coincidence experiment based on cold target recoil ion momentum spectroscopy, finding that electrons are not only emitted in the direction of the momentum transfer, but that there is a second peak of ejection to the backward direction. This finding links Compton scattering to processes such as ionization by ultrashort optical pulses(2), electron impact ionization(3,4), ion impact ionization(5,6) and neutron scattering(7), where similar momentum patterns occur. Compton scattering experiments off helium atoms for photon energies close to the ionization threshold reveal that electrons are not only emitted in the direction of the momentum transfer but also backwards.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
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Kircher, Max
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Trinter, Florian
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Grundmann, Sven
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Vela-Perez, Isab ...
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Brennecke, Simon
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Eicke, Nicolas
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visa fler...
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Rist, Jonas
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Eckart, Sebastia ...
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Houamer, Salim
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Chuluunbaatar, O ...
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Popov, Yuri V.
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Volobuev, Igor P ...
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Bagschik, Kai
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Piancastelli, Ma ...
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Lein, Manfred
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Jahnke, Till
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Schoeffler, Mark ...
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Doerner, Reinhar ...
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Atom och molekyl ...
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NATURVETENSKAP
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