# Introduction into QCD Sum Rule Approach

## Abstract

In these lectures, I describe basic techniques of the QCD sum rule approach. The basic concepts of the approach are introduced using a simple model of quantum-mechanical oscillator in 2+1 dimensions. Then I discuss their field-theoretical extension and the construction of the operator product expansion for current correlators in QCD. The calculation of static parameters is illustrated on the example of sum rules in the vector and axial meson channels. Finally, the QCD sum rule calculation of the pion electromagnetic form factor is presented as an example of application of the method to dynamic characteristics of the hadrons.

- Authors:

- Publication Date:

- Research Org.:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (US)

- Sponsoring Org.:
- USDOE Office of Energy Research (ER) (US)

- OSTI Identifier:
- 766511

- Report Number(s):
- JLAB-THY-99-29; DOE/ER/40150-1769

TRN: AH200037%%434

- DOE Contract Number:
- AC05-84ER40150

- Resource Type:
- Journal Article

- Resource Relation:
- Other Information: No journal information given for this preprint; PBD: 1 Sep 1999

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTROMAGNETIC FORM FACTORS; OPERATOR PRODUCT EXPANSION; QUANTUM CHROMODYNAMICS; SUM RULES

### Citation Formats

```
Radyushkin, A.
```*Introduction into QCD Sum Rule Approach*. United States: N. p., 1999.
Web.

```
Radyushkin, A.
```*Introduction into QCD Sum Rule Approach*. United States.

```
Radyushkin, A. Wed .
"Introduction into QCD Sum Rule Approach". United States. https://www.osti.gov/servlets/purl/766511.
```

```
@article{osti_766511,
```

title = {Introduction into QCD Sum Rule Approach},

author = {Radyushkin, A},

abstractNote = {In these lectures, I describe basic techniques of the QCD sum rule approach. The basic concepts of the approach are introduced using a simple model of quantum-mechanical oscillator in 2+1 dimensions. Then I discuss their field-theoretical extension and the construction of the operator product expansion for current correlators in QCD. The calculation of static parameters is illustrated on the example of sum rules in the vector and axial meson channels. Finally, the QCD sum rule calculation of the pion electromagnetic form factor is presented as an example of application of the method to dynamic characteristics of the hadrons.},

doi = {},

journal = {},

number = ,

volume = ,

place = {United States},

year = {1999},

month = {9}

}

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