-
Chapter
The Information Paradox
The incompatibility between gravity and quantum coherence represented by black holes should be solved by a consistent quantum theory that contains gravity as superstring theory. Despite many encouraging result...
-
Chapter
Fertilität / Geburtshilfe
Hormonelle Störungen als Ursache einer Subfertilität finden sich beim Mann im Gegensatz zur Frau in einem weitaus geringeren Maß. Bei einem normalen Spermiogramm sind die Hormonparameter in der Regel unauffällig.
-
Article
Renormalization of Yang-Mills theory developed around an instanton
We define the perturbation theory of Yang-Mills theory developed around an instanton. This needs for a proper treatment of the zero modes. The generalized Faddeev-Popov determinant mixes the contributions of t...
-
Article
Recensioni
-
Article
Single-particle spectrum of the dual-pomeron amplitude
We investigate the single-particle inclusive spectrum of the dual pomeron amplitude. Scaling is obtained (if αp(0)−1) but no pionization if αR(0)<1. The momentum transverse cut-off turns out to be exp [−4k ...
-
Article
The asymptotic behaviour of the dual pomeron amplitude
A rigorous derivation is given of the asymptotic properties of the one-loop nonplanar amplitude. Boths- andt-channel asymptotic behaviours are investigated. They are controlled by the expected Regge singularities...
-
Article
Properties of dual multiloop amplitudes
Previous results on the dual multiloop amplitude are extended by obtaining, from the unitarization procedure, the measure and domain of integration. The singularities of the amplitude, which arise from end poi...
-
Article
The twisting operator in multi-Veneziano theory
Using the operatorial expression for the gauge conditions, we derive an explicit form for the twisting operator and the semi-twisting operator which takes theP states intoV states. The expression for the last ope...
-
Article
Twisting-invariant factorization of multiparticle dual amplitude
We exhibit a transformation of variables which allows the simultaneous factorization of a multiparticle Veneziano term and its twisted counterpart (obtained by reversing the order of the intial or final partic...
-
Article
On the axial-current Ward-Takahashi identities
Using a gauge-invariant regularization technique involving regulator fields quantized with the wrong statistics, we give a general analysis of the anomalous properties of the axial-current divergence in the pr...
-
Article
On the building of dual diagrams from unitarity
-
Article
Asymptotic properties of wave functions and form factors of relativistic bound states
We study the asymptotic behaviour of form factors of hadrons considered as bound states (i.e., Reggeized hadrons) in a ladder Bethe-Salpeter model. The asymptotic properties of the B.S. wave function are first in...
-
Article
Families of sum rules from current algebra
By making use of a simple method we obtain different families of sum rules from current algebra. The method allows to understand the relation of the reference frame in which equal-time commutators are consider...
-
Article
On the relation between chiralSU 3 ×SU 3 current algebra andSU 6
The general structure of the covariant sum rules derived on the basis of chiralSU 3 ×SU 3 algebra is investigated in the case in which they ar...
-
Article
Ũ 12 unitarity and crossing
It is shown with a simple counterexample (quark-quark and quark-antiquark elastic scattering) thatU 12 is incompatible with unitarity and crossing even when all possible « irregular amplitudes » or breaking by « ...
-
Article
SU 4 and strong interactions
The groupSU 4 is probably the most straightforward and economical generalization ofSU 3 which allows for basic triplets of integral charges. In this paper we analyse in detail the predictions of a few models for ...
-
Article
Dominance of exchange amplitudes in elastic scattering
For any internal symmetry group one can express the amplitude for the reaction A+B→C+D (s-channel) in terms of amplitudes associated with irreducible representations of the group for the reaction A+ ...
-
Article
Diffraction scattering in the multiperipheral model
The diffraction scattering due to the shadow of the absorption as given by the multiperipheral model for high-energy inelastic collisions, is calculated. The Regge pole that would appear in the elastic amplitu...
-
Article
Theory of fermion Regge poles
A theory for spinor Regge poles is developed on the basis of the multiperipheral model. A set of linear integral equations for the corresponding high-energy amplitudes is obtained, which shows the characterist...
-
Article
Higher symmetries and pomerancuk conditions
A general and rather simple method is given which allows to find the number of independent total cros-sections at high energies in the framework of a group of symmetry when Pomeranchuk conditions are used.
