Interaction of high-energy electrons and photons with crystals

Baier, V.N.; Katkov, V. M.; Strakhovenko, V. M.

doi:10.1070/pu1989v032n11abeh002776

Cited by 113 publications

(238 citation statements)

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“…Equation (41) is in agreement with corresponding results on pair production in a Coulomb field and a constant crossed field [23] or a Coulomb field and a constant homegenous field [21]. In a similar way we can derive from Eq.…”

Section: Quasiclassical Limitsupporting

confidence: 89%

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Polarization-operator approach to electron-positron pair production in combined laser and Coulomb fields

et al. 2006

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The optical theorem is applied to the process of electron-positron pair creation in the superposition of a nuclear Coulomb and a strong laser field. We derive new representations for the total production rate as two-fold integrals, both for circular laser polarization and for the general case of elliptic polarization, which has not been treated before. Our approach allows us to obtain by analytical means the asymptotic behaviour of the pair creation rate for various limits of interest. In particular, we consider pair production by two-photon absorption and show that, close to the energetic threshold of this process, the rate obeys a power law in the laser frequency with different exponents for linear and circular laser polarization. With the help of the upcoming x-ray laser sources our results could be tested experimentally.

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Section: Quasiclassical Limitsupporting

confidence: 89%

“…[23] for pair creation by a Coulomb field and a constant crossed field and in Ref. [21] for pair creation in a Coulomb field and a constant homogeneous field. It is worth stressing that the ξ-dependence in Eq.…”

Section: High-frequency Limitmentioning

confidence: 99%

Polarization-operator approach to electron-positron pair production in combined laser and Coulomb fields

et al. 2006

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“…W v ' 18ðlnðÞ À 5:46Þ=½m À1 [3][4][5][6], see also [7]. Likewise, the probability per unit length squared of trident production through a real photon (the sequential process) in an external field for any value of becomes [5,6] …”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of strong field trident production

et al. 2010

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We show by experiment that an electron impinging on an electric field that is of critical magnitude in its rest frame, may produce an electron-positron pair. Our measurements address higher-order QED, using the strong electric fields obtainable along particular crystallographic directions in single crystals. For the amorphous material our data are in good agreement with theory, whereas a discrepancy with theory on the magnitude of the trident enhancement is found in the precisely aligned case where the strong electric field acts.

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“…th is about 22 GeV for the h111i axis of tungsten being several times larger for other crystals. (See the review [4] and the recent book [5] for further details concerning QED processes in crystals.) For energies well above !…”

Section: Introductionmentioning

confidence: 99%

Comparison of theory with experiment for positron production from high-energy electrons moving along crystal axes

Baier

Strakhovenko

2002

Phys. Rev. ST Accel. Beams

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Using the approach developed earlier for the description of the electron-photon showers in axially aligned single crystals, some characteristics of the positron yield measured in recent experiments are calculated. Theoretical estimations display a rather good agreement with experimental results obtained using 3 to 10 GeV electrons aligned to the h111i axis of the tungsten crystals. Such comparison verified that the accuracy of our approach is quite sufficient to make a reliable choice for optimal parameters of the positron source using axially aligned crystals for future linear colliders.

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Interaction of high-energy electrons and photons with crystals

Cited by 113 publications

References 0 publications

Polarization-operator approach to electron-positron pair production in combined laser and Coulomb fields

Polarization-operator approach to electron-positron pair production in combined laser and Coulomb fields

Experimental investigation of strong field trident production

Comparison of theory with experiment for positron production from high-energy electrons moving along crystal axes

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