Now showing items 141-150 of 196
[eta], [eta]' mixing and anomalies
(Elsevier, 1989-03-30)
We discuss the effects of [eta], [eta]' mixing and of the gluon anomaly in the decays [eta]-->3[pi]0, [eta]'-->3[pi]0, [psi]-->[eta][gamma] and [psi]-->[eta]' [gamma]. These effects are particularly important ...
Structural fluctuations and randomness in GaAs---AlxGa1-xAs superlattices
(Elsevier, 1988)
We discuss the use of X-ray and Raman scattering to probe structural disorder in aperiodic GaAs---AlxGa1-xAs superlattices, including random and quasiperiodic examples. Evidence is found for the presence of monolayer-thick ...
Neutron-proton and neutron-deuteron total cross sections at 4.0 and 5.7 GeV/c
(Elsevier, 1970-02-16)
The np and nd total cross sections have been measured directly with a neutron beam with momenta of 4.0 +/- 0.6 and 5.7 +/- 0.6 GeV/c. The data are compared with the previous nucleon-nucleon and nucleon-deuteron results, ...
The search for supersymmetry: Probing physics beyond the standard model
(Elsevier, 1985-01)
In this paper we survey methods by which supersymmetry (or other new physics) could be observed in experiments at present and future accelerators. We review some of the motivation for supposing supersymmetry might be a ...
Observation of a decoupled band in 123 Cs
(Springer-Verlag, 1978-12)
The methods of in-beam γ -ray spectroscopy have been used to study 123 Cs produced by the 115 In( 12 C, 4 n ) reaction. Five coincident stretched E 2 transitions, previously assigned in the literature to 123 Ba, have been ...
Neutron-nucleus total cross sections at 5.7 GeV/c
(Elsevier, 1970-02-16)
The neutron total cross sections for He, Be, C, Al, Fe, Cu, Cd, W, Pb and U have been measured to an accuracy of 2% at 5.7 +/- 0.6 GeV/c. The total cross section versus atomic weight data was fit to an absorbing uniform ...
Is low energy supergravity consistent with cosmology and particle physics experiments?
(Elsevier, 1985-10-10)
We construct a low energy supergravity model consistent with all cosmological and particle physics constraints, by omitting some of the usual simplifying assumptions in the hidden sector. The model has heavy squarks, light ...
Time series and dependent variables
(Elsevier, 1991-05)
We present a new method for analyzing time series which is designed to extract inherent deterministic dependencies in the series. The method is particularly suited to series with broad-band spectra such as chaotic series ...
Search for nucleon decays induced by GUT magnetic monopoles with the MACRO experiment
(Springer-Verlag; Springer-Verlag Berlin Heidelberg / Società Italiana di Fisica, 2002-12)
The interaction of a Grand Unification Magnetic Monopole with a nucleon can lead to a barion-number violating process in which the nucleon decays into a lepton and one or more mesons (catalysis of nucleon decay). In this ...
Energy dependence of spin-spin forces in 90[deg]cm elastic p-p scattering
(Elsevier, 1978-04-10)
We measured d[sigma]/dt(90[deg]cm) for [short up arrow]+p[short up arrow]-->p+p from 1.75 to 5.5 GeV/c, using the Argonne zero-gradient synchrotron 70% polarized proton beam and a 70% polarized proton target. We found ...