120223243
Production of large-transverse-momentum protons
We discuss in this paper two parton models for the production of large-${p}_{T}$ protons. One is the multiple-scattering model of Landshoff, Polkinghorne, and Scott and the other one is the so-called leading-particle model. Several aspects of these models are discussed such as single-particle spectra, event structure, production on nuclear targets, and proton production from pion beams.
28707884
New values for neutrino masses in the context of a horizontal model.
We study in detail an extended version of the Glashow-Salam-Weinberg model for the electroweak interactions. It has an extra global horizontal symmetry, which allows the appearance of neutrino mass terms. The constraints imposed by the standard cosmological model are used to determine the allowed range of variation of the free parameters of this model. We find that unstable massive neutrinos are permitted in a set of values for their masses between 100 eV and --1 GeV.
118704565
X versus y scaling in nonrelativistic deep inelastic scattering
119431516
Entanglement versus chaos in disordered spin chains
We use a Heisenberg spin-1/2 chain to investigate how chaos and localization may affect the entanglement of pairs of qubits. To measure how much entangled a pair is, we compute its concurrence, which is then analyzed in the delocalized (localized) and in the chaotic (nonchaotic) regimes. Our results indicate that chaos reduces entanglement and that entanglement decreases in the region of strong localization. In the transition region from a chaotic to a nonchaotic regime localization increases entanglement. We also show that entanglement is larger for strongly interacting qubits (nearest neighbors) than for weakly interacting qubits (next and next-next neighbors)
120964222
Electromagnetic-mass differences in a relativistic quark model
17220930
Optimal filters for the detection of continuous gravitational waves
We determine the transfer functions of two kinds of filters that can be used in the detection of continuous gravitational radiation. The first one optimizes the signal-to-noise ratio, and the second reproduces the wave with minimum error. We analyse the behaviour of these filters in connection with actual detection schemes.
55062742
Laser tests of silicon detectors
This paper collects experiences from the development of a silicon sensor laser testing setup and from tests of silicon strip modules (ATLAS End-cap SCT), pixel modules (DEPFET) and large-area diodes using semiconductor lasers. Lasers of 1060 and 680 nm wavelengths were used. A sophisticated method of focusing the laser was developed. Timing and interstrip properties of modules were measured. Analysis of optical effects involved and detailed discussion about the usability of laser testing for particle detectors are presented.