Weak interactions - C.E.R.N. work on weak interactions

1965 ◽  
Vol 285 (1401) ◽  
pp. 214-228 ◽  
Keyword(s):  
Present Status ◽  
Weak Interactions ◽  
Current Interaction ◽  
A Current

A review of the present status of weak interactions with particular reference to the implications of a current-current interaction, the Δ Y /Δ Q rule for currents and the Δ I = ½ rule for non-leptonic transitions.

The Weak Interactions

2021 ◽  
pp. 348-387
Author(s):  
J. Iliopoulos ◽  
T.N. Tomaras
Keyword(s):  
Weak Interactions ◽  
Vector Boson ◽  
Goldstone Boson ◽  
Vector Current ◽  
Axial Current ◽  
Current Interaction ◽  
Conserved Vector Current ◽  
Intermediate Vector ◽  
Pseudo Goldstone Boson ◽  
A Current

We present the phenomenology of the weak interactions in a historical perspective, from Fermi’s four-fermion theory to the V−A current×current interaction. The experiments of C.S. Wu, which established parity violation, and M. Goldhaber, which measured the neutrino helicity, are described. We study in turn the leptonic, semi-leptonic and non-leptonic weak interactions. We introduce the concept of the conserved vector current and the partially conserved axial current and show that the latter is the result of spontaneously broken chiral symmetry with the pion the corresponding pseudo-Goldstone boson. We study Gell–Mann’s current algebra and derive the Adler–Weisberger relation. Strangeness changing weak interactions and the Cabibbo theory are described. We present a phenomenological analysis of CP-violation in the neutral kaon system and we end with the intermediate vector boson hypothesis.

scholarly journals A CANDIDATE FOR EXACT CONTINUUM DUAL THEORY FOR SCALAR QED3

1993 ◽  
Vol 08 (14) ◽  
pp. 1343-1355 ◽  
Author(s):  
A. KOVNER ◽  
P. KURZEPA ◽  
B. ROSENSTEIN
Keyword(s):  
Fixed Point ◽  
Higgs Model ◽  
Magnetic Vortex ◽  
Dual Theory ◽  
Scalar Theory ◽  
Massive Vector ◽  
Vortex Model ◽  
Current Interaction ◽  
Vector Theory ◽  
A Current

We discuss a possible exact equivalence of the Abelian Higgs model and a scalar theory of a magnetic vortex field in 2 + 1 dimensions. The vortex model has a current-current interaction and can be viewed as a strong coupling limit of a massive vector theory. The fixed point structure of the theory is discussed and mapped into fixed points of the Higgs model.

Nonleptonic decays of hyperons in a current-current interaction

1972 ◽  
Vol 11 (4) ◽  
pp. 817-823 ◽  
Author(s):  
A. Esteve ◽  
J. Gutierrez ◽  
A. Tiemblo
Keyword(s):  
Current Interaction ◽  
Nonleptonic Decays ◽  
A Current

The Current-Current Model of the Weak Interaction

2019 ◽  
pp. 233-250
Author(s):  
Michael E. Peskin
Keyword(s):  
Weak Interaction ◽  
Current Model ◽  
High Energy ◽  
Charge Conjugation ◽  
Pion Decay ◽  
High Energy Neutrino ◽  
Neutrino Scattering ◽  
Current Interaction ◽  
A Current ◽  
Conjugation Invariance

This chapter discusses the representation of the weak interaction as a current-current interaction that violates parity and charge conjugation invariance. It describes the experiments that demonstrate that this violation is maximal. The resulting theory is called the V-A theory of the weak interaction. The chapter works out the predictions of the V-A theory for muon and pion decay and high-energy neutrino scattering and shows the comparison to experiment.

Benchmark Study of Numerical Approaches for Wave-Current Interaction Problem of Offshore Floaters

2016 ◽  
Author(s):  
Zhiyuan Pan ◽  
Torgeir Vada ◽  
Styrk Finne ◽  
Arne Nestegård ◽  
Jan Roger Hoff ◽  
...  
Keyword(s):  
Free Surface Elevation ◽  
Benchmark Study ◽  
Validity Range ◽  
Current Interaction ◽  
Numerical Performance ◽  
Wave Drift Forces ◽  
Interaction Problem ◽  
A Current ◽  
Drift Forces ◽  
Numerical Approaches

The influence from a current on the relative motions and wave drift forces for moored floater can be quite significant. In this paper, a benchmark study is carried out for three programs, MULDIF, WADAM and WASIM, with the focus on their capability on handling the wave-current interaction problem. A semi-submersible model Troll B and a tanker model KVLCC2 are used for this study. The motions, free surface elevation at specified off-body points and mean drift forces are calculated by the programs in different current or forward speed conditions. Analysis results are compared and discussed, with the aim to evaluate the numerical performance of each programs and their validity range in terms of current speed.

scholarly journals NUMERICAL MODELING OF WAVE DEFORMATION WITH A CURRENT

1988 ◽  
Vol 1 (21) ◽  
pp. 27
Author(s):  
Susumu Ohnaka ◽  
Akira Watanabe ◽  
Mashiko Isobe
Keyword(s):  
Numerical Modeling ◽  
Boundary Conditions ◽  
Numerical Computation ◽  
Bottom Topography ◽  
Time Dependent ◽  
Computation Method ◽  
Diffraction Reflection ◽  
Wave Deformation ◽  
Current Interaction ◽  
A Current

A numerical computation method for a wave field coexisting with a current is presented to study wave-current interaction on a slowly varying bottom topography. Derivation is given for a new set of time-dependent mildslope equations extended to a wave and current coexisting field, which can deal with wave deformation due to combined refraction, diffraction, reflection and breaking as well as to wave-current interaction. Discussion is made on the numerical computation schemes, boundary conditions and breaking conditions. Some examples of the numerical computations are shown for wave and current coexisting fields.

Is aggregation of β-amyloid peptides a mis-functioning of a current interaction process?

2001 ◽  
Vol 1546 (2) ◽  
pp. 356-364 ◽  
Author(s):  
Franck Festy ◽  
Laurence Lins ◽  
Gabriel Péranzi ◽  
Jean Noël Octave ◽  
Robert Brasseur ◽  
...  
Keyword(s):  
Interaction Process ◽  
Amyloid Peptides ◽  
Current Interaction ◽  
Β Amyloid ◽  
A Current

Wave–current interactions: an experimental and numerical study. Part 2. Nonlinear waves

1990 ◽  
Vol 216 ◽  
pp. 505-536 ◽  
Author(s):  
G. P. Thomas
Keyword(s):  
Numerical Study ◽  
Finite Depth ◽  
Finite Amplitude ◽  
Two Dimensions ◽  
Arbitrary Distribution ◽  
Current Interaction ◽  
Particle Velocities ◽  
The Waves ◽  
A Current ◽  
Theory And Experiment

The interaction between a regular wavetrain and a current possessing an arbitrary distribution of vorticity, in two dimensions, is considered for waves of finite amplitude. A numerical model is constructed, primarily for use in the finite depth regime, extending the work of Dalrymple (1973, 1977) and this is used to predict the wavelength and the particle velocities under the waves. These predictions agree very well with experimentally obtained data and the importance of the vorticity in the wave–current interaction is clarified. Amplitude and wavelength modulations are considered for finite amplitude waves on a slowly varying irrotational current; moderate agreement is found between theory and experiment.

scholarly journals ORTHOGONAL WAVE CURRENT INTERACTION OVER A FIXED RIPPLED BED: PRELIMINARY RESULTS OF AN EXPERIMENTAL CAMPAIGN

2020 ◽  
pp. 44
Author(s):  
Carla Faraci ◽  
Alessia Ruggeri ◽  
Massimiliano Marino ◽  
Rosaria E. Musumeci ◽  
Enrico Foti
Keyword(s):  
Boundary Layer ◽  
Velocity Distribution ◽  
Water Tank ◽  
Current Case ◽  
Experimental Campaign ◽  
Current Interaction ◽  
Hydrodynamic Effects ◽  
Rippled Bed ◽  
A Current ◽  
The Eu

This paper reports some results obtained in the framework of the TA WINGS, funded by the EU through the Hydralab+ program. The project was aimed at investigating the hydrodynamic effects of an orthogonal wave onto a current in order to understand the nature of the velocity distribution along the water column over fixed ripples. Velocity profiles were acquired within the DHI shallow water tank by means of several Vectrinos in order to investigate the effects of wave-current interaction. A comparison between wave only case and wave plus current case showed that, when the current overlaps to waves, the recirculating cells formed near the bed are flatter than those formed in wave only. Moreover, the vorticity increases outside the boundary layer and decreases inside it when the current superposes to the wave.

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