Picosecond timing of terawatt laser pulses with the SLAC 46 GeV electron beam

Kotseroglou, T.; Bamber, C.; Boege, S.; Melissinos, Adrian C.; Meyerhofer, D. D.; Ragg, W.; Bula, C.; McDonald, Kirk T.; Prebys, E.; Bernstein, David P.; Burke, D. L.; Cisneros, E.; Horton-Smith, G. A.; Jobe, K.; Judkins, J.; Odian, A.; Ross, M.; Waltz, David A.; Berridge, S.; Bugg, W.; Shmakov, K.; Weidemann, A. W.

doi:10.1016/s0168-9002(96)00828-5

Cited by 16 publications

(8 citation statements)

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“…We turn now to two important processes [38,39] emerging in the interaction of an ultrarelativistic electron beam with a terawatt laser pulse, performed at SLAC [63], when strong electromagnetic fields are involved. The first process is the nonlinear Compton scattering, in which an ultrarelativistic electron absorbs multiple photons from the laser field, but emits only a single photon via the process…”

Section: Nonlinear Compton Scattering and Breit-wheeler Processmentioning

confidence: 99%

“…(246), but the squared transverse momenta p 2 ⊥ is quantized and must be replaced by discrete values corresponding to the Landau energy levels. From the known nonrelativistic levels for the Hamiltonian p 2 ⊥ /2m e one extracts immediately the replacements (63). Apart from the replacement (63), the JWKB calculations remain the same.…”

Section: Including a Smoothly Varying B(z)-field Parallel To E(z)mentioning

confidence: 99%

“…[61,62,40,41,42,43,44,45] for high-energy multiple photon collisions. The phenomenon of e + e − pair production in multi-photon light-by-light scattering has been reported in [38,39,254,211] on the experiment SLAC-E-144 [277,63].…”

Section: Experiments Of Electron Beam-laser Collisionsmentioning

confidence: 99%

“…Such a high-energy photon beam can be created for instance by backscattering the laser beam off a high-energy electron beam, i.e., by inverse Compton scattering. With a laser beam of energy 2.35 eV (wavelength 527nm) backscattering off a high-energy electron beam of energy 46.6 GeV, as available at SLAC [63], the maximum energy acquired by Compton-backscattered photon beam is only 29.2GeV. This is still not enough for the Breit-Wheeler reaction (3) to occur, since such photon energy is four times smaller than the needed energetic threshold.…”

Section: Experiments Of Electron Beam-laser Collisionsmentioning

confidence: 99%

“…A collective state of many interacting laser photons occurs. We turn then in Section 6.3 to an even more complex and interesting procedure: the interaction of an ultrarelativistic electron beam with a terawatt laser pulse, performed at SLAC [63], when strong electromagnetic fields are involved. A first nonlinear Compton scattering process occurs in which the ultrarelativistic electrons absorb multiple photons from the laser field and emit a single photon via the process (229).…”

Section: Introductionmentioning

confidence: 99%

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Electron–positron pairs in physics and astrophysics: From heavy nuclei to black holes

Ruffini¹,

Vereshchagin²,

Xue³

2010

Physics Reports

496

305

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Due to the interaction of physics and astrophysics we are witnessing in these years a splendid synthesis of theoretical, experimental and observational results originating from three fundamental physical processes. They were originally proposed by Dirac, by Breit and Wheeler and by Sauter, Heisenberg, Euler and Schwinger. For almost seventy years they have all three been followed by a continued effort of experimental verification on Earth-based experiments. The Dirac process, e + e − → 2γ, has been by far the most successful. It has obtained extremely accurate experimental verification and has led as well to an enormous number of new physics in possibly one of the most fruitful experimental avenues by introduction of storage rings in Frascati and followed by the largest accelerators worldwide: DESY, SLAC etc. The Breit-Wheeler process, 2γ → e + e − , although conceptually simple, being the inverse process of the Dirac one, has been by far one of the most difficult to be verified experimentally. Only recently, through the technology based on free electron X-ray laser and its numerous applications in Earth-based experiments, some first indications of its possible verification have been reached. The vacuum polarization process in strong electromagnetic field, pioneered by Sauter, Heisenberg, Euler and Schwinger, introduced the concept of critical electric field E c = m 2 e c 3 /(e ). It has been searched without success for more than forty years by heavy-ion collisions in many of the leading particle accelerators worldwide.The novel situation today is that these same processes can be studied on a much more grandiose scale during the gravitational collapse leading to the formation of a black hole being observed in Gamma Ray Bursts (GRBs). This report is dedicated to the scientific race. The theoretical and experimental work developed in Earth-based laboratories is confronted with the theoretical interpretation of space-based observations of phenomena originating on cosmological scales. What has become clear in the last ten years is that all the three above mentioned processes, duly extended in the general relativistic framework, are necessary for the understanding of the physics of the gravitational collapse to a black hole. Vice versa, the natural arena where these processes can be observed in mutual interaction and on an unprecedented scale, is indeed the realm of relativistic astrophysics.We systematically analyze the conceptual developments which have followed the basic work of Dirac and Breit-Wheeler. We also recall how the seminal work of Born and Infeld inspired the work by Sauter, Heisenberg and Euler on effective Lagrangian leading to the estimate of the rate for the process of electron-positron production in 1 a constant electric field. In addition of reviewing the intuitive semi-classical treatment of quantum mechanical tunneling for describing the process of electron-positron production, we recall the calculations in Quantum Electro-Dynamics of the Schwinger rate and effective Lagrangian for cons...

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Section: Nonlinear Compton Scattering and Breit-wheeler Processmentioning

confidence: 99%

Section: Including a Smoothly Varying B(z)-field Parallel To E(z)mentioning

confidence: 99%