Модели единого описания электромагнитной структуры адронов и бинарных электрослабых реакций

• Автор: Дубничкова, Анна Зузана
• Шифр специальности: 01.04.02
• Научная степень: Докторская
• Год защиты: 1997
• Место защиты: Дубна
• Количество страниц: 152 с. : ил.

Contents
1 INTRODUCTION
1.1 The scientific novelty and a practical worth
1.2 Summary of the dissertation
2 ELECTROMAGNETIC FORM FACTORS OF STRONGLY INTERACTING PARTICLES AND THEIR PROPERTIES
2.1 The electromagnetic form factors
2.2 The analytic properties and the unitarity condition of the electromagnetic form factors
2.3 The asymptotic behaviour of the electromagnetic form factors
3 UNITARY AND ANALYTIC MODEL OF ELECTROMAGNETIC FORM FACTORS OF HADRONS
3.1 Electromagnetic FF’s of hadrons
4 PSEUDOSCALAR MESON ELECTROMAGNETIC FORM FACTORS
4.1 The pion electromagnetic form factor
4.2 The kaon electromagnetic form factors
5 OCTET 1/2+ BARYON AND DEUTERON ELECTROMAGNETIC FORM FACTORS

5.1 The nucleon electromagnetic structure
5.2 Prediction of a behaviour of A-hyperon electromagnetic form factors
5.3 The naive model of electromagnetic structure of l/2+ octet of baryons
5.4 Approach to a global description of the deuteron electromagnetic structure
6 NEW FORMULATION OF THE UNITARY AND ANALYTIC MODEL OF THE 1/2+ OCTET BARYON EM STRUCTURE
6.1 An unambiguous way of estimation of the vector-meson-nucleon tensor coupling constants
6.2 New formulation of the unitary and analytic model of the nucleon electromagnetic structure
6.3 Investigation of proton magnetic formfactor in the unphysical region by means of the pp —> 7r°e+e_ process
6.4 The Körner -Kuroda model of octet l/2+ baryons EM structure and its unitarization
7 HADRONIC CONTRIBUTIONS TO THE ANOMALOUS MAGNETIC MOMENTS OF CHARGED LEPTONS
7.1 Experimental situation
7.2 Theoretical estimates
8 CONSERVED-VECTOR-CURRENT HYPOTHESIS AND THE vtt~ -> M~M° AND T- -» vTM~M+ WEAK PROCESSES
8.1 The weak vee~ —* M~M° processes
8.2 The tau decay into two pseudoscalar mesons
9 CONCLUSION

Chapter
INTRODUCTION
An observation of the proton electromagnetic (EM) structure in the elastic electron scattering experiments [1, 2] was in the physics of elementary particles really revolutionary.
For the first time it was apparently demonstrated, that one of the building stones of the Universe, the proton, is nonpoint-like. The latter stimulated theoretical investigations in the framework of which the concept of a nonpoint-like nature of the proton was extended also to other hadrons, what was again confirmed in subsequent experiments.
An immediate theoretical explanation of data on the proton EM structure has led to new ideas, like a postulation of the existence of isoscalar [3] and isovector [4] vector mesons, leading to the so-called vector-meson-dominance (VMD) model [5, 6], which up to now is only the successful approach in a global description of the data on the EM structure of hadrons.
Phenomenologically, the EM structure of hadrons is taken into account by an introduction of scalar functions, so-called EM form factors (FF’s) Fh(t), which depend on the four-momentum squared t — q2 — — Q2 to be transferred by the virtual photon. These EM FF’s appear as coefficients in a decomposition of a matrix element of the EM current of the hadron according to a maximal number of linearly-independent

ABS. VALUE OF NEUTRAL KAON E.M
ABS. VALUE OF NEUTRAL KAON E.M