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Autor:
M. M. A. Yajadda, Xiao Gao
Publikováno v:
Physics Letters A. 382:3031-3034
A theoretical model based on the single electron tunneling phenomenon is employed to calculate the time-dependent electrical resistance of an Ag–Ag 2 S–Pt atomic switch at different applied voltages. While a negative voltage is applied to Pt elec
Autor:
Raymond A. Lewis, Michael Martin Nieto, Gerald A. Smith, Michael H. Holzscheiter, Nicholas S. P. King, X. Feng, T. Goldman
Publikováno v:
Physics Letters A. 214:279-284
Up to one million antiprotons from a single LEAR spill have been captured in a large Penning trap. Surprisingly, when the antiprotons are cooled to energies significantly below 1 eV, the annihilation rate falls below background. Thus, very long stora
Publikováno v:
Physics Letters A. 172:203-207
In order that confinement should survive, light quarks inside hadrons have a very high acceleration and will feel a thermal bath with an Unruh temperature near 137 MeV. We show that this temperature is consistent with the experimentally observed depa
Autor:
T. Shikama, H. Nitta
Publikováno v:
Physics Letters A. 149:291-294
The channeling yield of MeV antiprotons as a function of crystal depth is studied by computer simulation. It is found that a small fraction of channeled antiprotons penetrates anomalously into crystals.
Publikováno v:
Physics Letters A. 144:111-115
It is shown possible to define the temperature of Lorentz-squeezed hadrons in terms of their speed. Within the framework of the covariant harmonic oscillator formalism which is the simplest scientific language for Lorentz-squeezed hadrons, the hadron
Autor:
V.G. Baryshevskii, V.V. Thikhomirov
Publikováno v:
Physics Letters A. 96:215-218
It is shown that the production of transversally polarized electrons and positrons by unpolarized γ-quanta with energies of tens and hundreds of GeV, is possible in thin crystal plates.
Autor:
Hongkun Park, B. L. Berman, R.L. Swent, Sheldon Datz, J. O. Kephart, R. W. Fearick, Richard H. Pantell
Publikováno v:
Physics Letters A. 96:45-48
Channeling-radiation spectra have been obtained from a germanium crystal with ≈54.3 MeV positrons and electrons and with 16.9 MeV electrons. Theoretical calculations were performed and are found to agree reasonably well with the experimental result
Autor:
Nils A. Tornqvist
Publikováno v:
Physics Letters A. 117:1-4
The correlations between the pions in the reaction J/ψ→Λ Λ →π - pπ +- p are discussed. Explicit formulas are given which can be tested against experiment and, in particular, the part of the correlations which can violate the Bell inequalitie
Autor:
A.M. Lane
Publikováno v:
Physics Letters A. 104:91-93
It has been suggested that the decay of a state is reduced by frequent phase-changing collisions. By explicit solution of a model collision problem, we show that collisions may increase or decrease the decay constant, the direction being the same as
Publikováno v:
Physics Letters A. 125:44-46
We report semiclassical (impact-parameter) and classical cross sections for antihydrogen formation in collisions between antiprotons p and positronium atoms Ps computed in the intermediate energy range 2–100 keV lab for antiprotons.