Results 51 to 60 of about 124,471 (169)
Electron beam relaxation in inhomogeneous plasmas [PDF]
In this work, we studied the effects of background plasma density fluctuations on the relaxation of electron beams. For the study, we assumed that the level of fluctuations was so high that the majority of Langmuir waves generated as a result of beam ...
A. Voshchepynets, V. Krasnoselskikh
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Incoherent pair generation in a beam-beam interaction simulation [PDF]
This paper deals with two topics: the generation of incoherent pairs in two beam-beam simulation programs, GUINEA-PIG and CAIN, and the influence of the International Linear Collider (ILC) beam parameter choices on the background in the micro–vertex detector (VD) induced by direct hits. One of the processes involved in incoherent pair creation (IPC) is
Rimbault, C. +3 more
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Electron beam profile imaging in the presence of coherent optical radiation effects
High-brightness electron beams with low energy spread at existing and future x-ray free-electron lasers are affected by various collective beam self-interactions and microbunching instabilities. The corresponding coherent optical radiation effects, e.g.,
Christopher Behrens +5 more
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Observations of the beam-beam interaction [PDF]
The observed complexity of the beam-beam interaction is the subject of this paper. The varied observations obtained from many storage rings happen to be sufficiently similar that a prescription can be formulated to describe the behavior of the luminosity as a function of beam current including the peak value.
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Magnetic pinching of relativistic particle beams: a new approach to strong-field QED physics
Quantum electrodynamics (QED) is a foundation of modern physics, yet access to the strong-field QED regime in the laboratory remains a formidable challenge.
Xing-Long Zhu +8 more
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Beam-beam interaction in muon colliders
Inspired by the hybrid nature of muon colliders, we investigate the classical and quantum effects induced by the μ + μ − beam-beam interaction. We show that although the tendency of emittance dilution appears to be substantial in a single pass, it nevertheless quickly saturates.
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Measurements of the beam-beam interaction at PEP-II [PDF]
The beam-beam interaction is one of the performance limitations at PEP-II. The peak luminosity in PEP-II has reached 3.4 /spl times/ 10/sup 33//cm/sup 2//s with 693 bunches with a positron current of 1.6 A and an electron current of 0.84 A. The beam-beam tune shift limits have exceeded 0.06 horizontally and 0.03 vertically.
Seeman, J. T. +18 more
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Macroscopic fluid approach to the coherent beam-beam interaction [PDF]
LaTeX, 3 pages, To be presented at the Particle Accelerator Conference (PAC 2001)
Tzenov, Stephan I., Davidson, Ronald C.
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Halo formation due to beam-beam interactions of beams optically mismatched at injection
In this paper, we report on the halo formation and emittance growth driven by a parametric resonance during beam-beam collisions with optically mismatched injection.
Ji Qiang
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Review of linear collider beam-beam interaction [PDF]
Three major effects from the interaction of e+e− beams — disruption, beamstrahlung, and electron‐positron pair creation — are reviewed. For the disruption effects we discuss the luminosity enhancement factor, the maximum and rms disruption angles, and the kink instability. All the results are obtained from computer simulations.
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