Nonlinear Breit–Wheeler pair creation with bremsstrahlung<i>γ</i>rays

Blackburn, Tom; Marklund, Mattias

doi:10.1088/1361-6587/aab3b4

Cited by 46 publications

(35 citation statements)

References 50 publications

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“…We also show the maximal conversion efficency for breamsstrahlung, achieved at optimal thickness for arbitrary target material, see Ref. [62]. The result for the dipole wave is shown with bounds corresponding to different phases.…”

Section: Using χmentioning

confidence: 81%

Laser-Particle Collider for Multi-GeV Photon Production

et al. 2019

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As an alternative to Compton backscattering and bremsstrahlung, the process of colliding highenergy electron beams with strong laser fields can more efficiently provide both cleaner and brighter source of photons in the multi-GeV range for fundamental studies in nuclear and quark-gluon physics. In order to favor the emission of high-energy quanta and minimize their decay into electron-positron pairs the fields must not only be sufficiently strong, but also well localized. We here examine these aspects and develop the concept of a laser-particle collider tailored for high-energy photon generation. We show that the use of multiple colliding laser pulses with 0.4 PW of total power is capable of converting more than 18 % of the initial multi-GeV electron beam energy into photons, each of which carries more than half of the electron energy.

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Section: Using χmentioning

confidence: 81%

Laser-Particle Collider for Multi-GeV Photon Production

et al. 2019

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“…In fact, the nonlinear Breit-Wheeler process considered below, assumes the interaction of a probe photon X (e.g., from Compton backscattering in a prepulse, starting a seeded cascade via two-step part of trident process, cf. [17,18]) with two consecutive laser pulses, L 1þ2 , in the reaction X þ L 1þ2 → e þ þ e − , where a multitude of laser photons can participate simultaneously in the e þ e − pair creation, thus enabling the process even "below threshold." In the Furry picture, this process is a cross channel of the nonlinear Compton process without having a classical counterpart, as the Thomson process in the weakfield regime.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Breit-Wheeler process in short laser double pulses

Титов¹,

Takabe

Kämpfer

2018

Phys. Rev. D

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The nonlinear (strong-field) Breit-Wheeler e þ e − pair production by a probe photon traversing two consecutive short and ultrashort (subcycle) laser pulses is considered within a QED framework. The temporal shape of the pulses and the distance between them are essential for the differential cross section as a function of the azimuthal angle distribution of the outgoing electron (positron). The found effect of a pronounced azimuthal anisotropy is important for subcycle pulses and decreases rapidly with increasing width of the individual pulses.

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“…Among the large number of new topics, γ-ray emission and e + e − pair creation in laser-plasma interactions have been studied extensively in recent years [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] . γ-ray generation by Bremsstrahlung radiation has been demonstrated in laser-solid interactions 28,29 .…”

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confidence: 99%

Brilliant gamma-ray beam and electron–positron pair production by enhanced attosecond pulses

Klimo

Bulanov

et al. 2018

Commun Phys

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Electron-positron pair production via Breit-Wheeler process requires laser intensities approaching 10 24 W cm −2 due to the small cross-section. Here, we propose a mechanism for brilliant γ-ray emission and dense GeV pairs creation accompanied with highharmonic generation by using plasma mirror and an ultra short pulse with the intensity of 3 × 10 23 W cm −2. The laser is reflected by the solid surface after propagating tens of microns in a near-critical density plasma and breaks into short wave packets. The intensity of the reflected high order harmonic field is enhanced by the focusing and compression effects from the deformed oscillating mirror. The radiation trapped electrons emit γ-photons while colliding with the reflected attosecond pulses. The peak intensity of the γ-ray reaches 0.74 PW with the brilliance of 2 × 10 24 s −1 mm −2 mrad −2 (0.1%BW) −1 (at 58 MeV). A GeV positron beam is obtained with density of 4 × 10 21 cm −3 and a particle number of 5.6 × 10 9 .

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Nonlinear Breit–Wheeler pair creation with bremsstrahlungγrays

Cited by 46 publications

References 50 publications

Laser-Particle Collider for Multi-GeV Photon Production

Laser-Particle Collider for Multi-GeV Photon Production

Nonlinear Breit-Wheeler process in short laser double pulses

Brilliant gamma-ray beam and electron–positron pair production by enhanced attosecond pulses

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