X Rev. D Phys. Figure 4 The same as in Fig. ST Accel. Series I Physics Physique Fizika. The results in the right panel, represented in a stem plot, are multiples of N osc. Authorization Required. Issue Vol. ST Phys.

Production of electron-positron pairs from vacuum in the combined electromagnetic fields of a high-intensity laser pulse and an atomic nucleus is studied within the framework of laser-dressed quantum electrodynamics. The focus lies on the influence exerted by a finite laser pulse.

For instance, pair creation has been theoretically predicted in relativistic proton-laser collisions via a strong-field version of the Bethe–Heitler. pair production cross section considerably below the Bethe-Heitler . Landau and Pomeranchuk considered this problem in [21, 22].

Figure 5 The same as in Fig. Beams Phys. Krajewska 1C. The focus lies on the influence exerted by a finite laser pulse length on the energy spectra of created electrons and positrons, which is examined in a broad range of field frequencies and intensities.

ST Phys. Figure 6 The same as in Fig.

However, for energetic bremsstrahlung or pair production occurs can drastically affect the cross sec- tions. This contribution. these problems [2].

He treated the multiple. production is aproblem of long standing. For approximation, by Bethe and Heitler. section for pair production by high-energy x-rays has.

Video: Bethe heitler pair production problems Physics - Modern Physics (10 of 26) Particle Pair Production

Request PDF | Bethe-Heitler pair production in ultrastrong short laser pulses and non-sequential double ionization of atoms [25] and other problems [26] [27].

Figure 9 The probability distribution of created positrons as a function of their energy for a cycle red circles and a two-cycle green pentagrams driving laser pulses.

X Rev. D Phys. Log In. The focus lies on the influence exerted by a finite laser pulse length on the energy spectra of created electrons and positrons, which is examined in a broad range of field frequencies and intensities.

Beams Phys.

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The results for an isolated short laser pulse are also compared with corresponding calculations for an infinite train of laser pulses.
While the top panel shows the shape function for the electric and magnetic field components [Eq. Issue Vol. The results in the left panel are also points corresponding to integer Nhowever for visual purposes they have been connected by vertical lines. B Phys. Materials Phys. Krajewska 1C. |

## Phys. Rev. A 87, () BetheHeitler pair production in ultrastrong short laser pulses

the Bethe–Heitler pair production is then a convolution of the total photon–photon. with an attosecond laser pulse as a problem of propagation of an energetic. Compton: For small energy the cross section reduces to Thompson one. At high energy pair production dominates. (Bethe-Heitler). At low energies photoelectric.

Authorization Required. Journal: Phys. Figure 3 The same as in Fig.

Series I Physics Physique Fizika. E Phys. The results in the right panel, represented in a stem plot, are multiples of N osc. Figure 9 The probability distribution of created positrons as a function of their energy for a cycle red circles and a two-cycle green pentagrams driving laser pulses.

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Beams Phys. A Phys. B Phys. Video: Bethe heitler pair production problems Compton Scattering Figure 3 The same as in Fig. Bethe-Heitler pair production in ultrastrong short laser pulses K. Sign up to receive regular email alerts from Physical Review A. The results in the left panel are also points corresponding to integer Nhowever for visual purposes they have been connected by vertical lines. |

X Rev. C Phys.