Quantum ChromodynamicsThe theory of strong interactions, quantum chromodynamics (QCD), was for mulated 30 years ago and has since been a very active field of research. The underlying equations of motion for the gauge degrees of freedom are nonlin ear and minimally coupled to fermions with global and local SU(3) charges. This leads to spectacular problems compared with those of QED since the gauge bosons themselves interact with each other. On the other hand, it is exactly the self-interaction of the gluons which leads to asymptotic freedom and the pos sibility to calcuate quark-gluon interaction at small distances in the framework of perturbation theory. We discover one of the most complicated but most beau tiful gauge theories which poses extremely challenging problems on modem theoretical and experimental physics today. Quantum chromodynamics is the quantum field theory that allows us to cal culate the propagation and interaction of colored quarks and gluons at small distances. Today's experiments do not allow these colored objects to be detected directly; instead one deals with colorless hadrons: mesons and baryons seen far away from the actual interaction point. The hadronization itself is a complicated process and not yet understood from first principles. Therefore one may won der how the signature of quark and gluon interactions can be traced through the process of hadronization. |
Contents
8 | |
10 | |
11 | |
17 | |
5 | 39 |
9 | 56 |
11 | 64 |
13 | 71 |
3 | 258 |
6 | 274 |
8 | 281 |
10 | 297 |
11 | 305 |
12 | 313 |
13 | 334 |
14 | 344 |
Scattering Reactions and the Internal Structure of Baryons 75 | 74 |
3 | 88 |
5 | 96 |
7 | 111 |
10 | 125 |
12 | 138 |
13 | 144 |
Gauge Theories and QuantumChromodynamics | 153 |
7 | 155 |
2 | 159 |
FadeevPopov Ghost Fields | 176 |
5 | 185 |
1 | 225 |
Deep Inelastic Scattering 237 | 236 |
2 | 243 |
15 | 352 |
16 | 360 |
17 | 367 |
The DrellYan Process and Smallx Physics | 385 |
5 | 396 |
1 | 425 |
Nonperturbative QCD 439 | 438 |
Derivation of the Transition Amplitude 7 | 443 |
The Average Link Value | 468 |
Calculation of QCD SumRule Graphs with | 502 |
Phenomenological Models for Nonperturbative QCD Problems | 513 |
2 | 523 |
Appendix 539 | 538 |
547 | |
Other editions - View all
Common terms and phrases
antiquark baryon calculation charge color const contribution corresponding coupling constant cross section d²o defined denotes density derived diagram Dirac Dirac equation discuss distribution functions divergent electron energy evaluate Example Exercise factor fermion Feynman field theory four-momentum gauge invariance gauge theories GLAP equations gluon graph Greiner hadrons Inserting integral interaction isospin lattice lepton Lorentz Mandelstam variables mass massless matrix element mesons momenta nucleon obtain operator P₁ parameter particles parton perturbative photon Phys physical pion polarization propagator quark renormalization representation rest system result right-hand side scalar scattering amplitude sin² Solution spin spinor splitting function structure functions symmetry tensor tion transformation values vanishes variable vector vertex w+mo wave function yields Απ ας λα μμ μν