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Positron production in multiphoton light-by-light scattering
A signal of 106 {+-} 14 positrons above background has been observed in collisions of a low-emittance 46.6-GeV electron beam with terawatt pulses from a Nd:glass laser at 527 nm wavelength in anExpand
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Studies of nonlinear QED in collisions of 46.6 GeV electrons with intense laser pulses
We report on measurements of quantum electrodynamic processes in an intense electromagnetic wave, where nonlinear effects (both multiphoton and vacuum polarization) are prominent. Nonlinear ComptonExpand
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Fruit thinning plums and apricots
The need for crop load reduction to improve fruit size andconsistency of cropping on plum and apricot trees is discussed. Threealternative strategies of achieving this objective are described:Expand
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Non-Linear Optics for the Final Focus of the Single-Pass-Collider
The purpose of the final focus system (FFS) is to demagnify the beam envelope in the Collider arc lattice to a size suitable for beam collisions at the interaction region. The final spot size isExpand
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Detrital Zircon Record of Colorado River Incision
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The inhibitory effects of 5‐hydroxytryptamine on gastric acid secretion by the rat isolated stomach
1 The effect of 5‐hydroxytryptamine (5‐HT) on acid secretion by a rat isolated stomach preparation has been studied. 2 5‐HT at 10−5 M in the serosal bathing fluid produced significant inhibition ofExpand
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Visible-laser acceleration of relativistic electrons in a semi-infinite vacuum.
We demonstrate a new particle acceleration mechanism using 800 nm laser radiation to accelerate relativistic electrons in a semi-infinite vacuum. The experimental demonstration is the first of itsExpand
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Split-pole magnetic spectrograph for precision nuclear spectroscopy
Abstract A split-pole, broad-range magnetic spectrograph has been designed that uses the fringing fields associated with four pole boundaries to obtain two-directional focusing over the full momentumExpand
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A damping ring design for the SLAC next linear collider
In this paper, we describe the design of the main damping rings and the positron pre-damping ring for the SLAC Next Linear Collider, a future linear collider with a center-of-mass energy of 0.5 toExpand
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