Fine structure of spectrum of twist-three operators in QCD

被引：105

作者：

Belitsky, AV ^{[1
]}

机构：

[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

来源：

PHYSICS LETTERS B | 1999年 / 453卷 / 1-2期

关键词：

twist-three operators; evolution; three-particle problem; integrability; spectrum of eigenvalues;

D O I：

10.1016/S0370-2693(99)00326-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We unravel the structure of the spectrum of the anomalous dimensions of the quark-gluon twist-3 operators which are responsible for the multiparton correlations in hadrons and enter as a leading contribution to several physical cross sections. The method of analysis is based on the recent finding of a non-trivial integral of motion for the corresponding Hamiltonian problem in multicolour limit which results into exact integrability of the three-particle system. Quasiclassical expansion is used for solving the problem. We address the chiral-odd sector as a case of study. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：59 / 72

页数：14

共 26 条

[1] Q(2) evolution of chiral-odd twist-3 distributions h(L)(x,Q(2)) and e(x,Q(2)) in large-N-c QCD [J].

Balitsky, II ;

Braun, VM ;

Koike, Y ;

Tanaka, K .

PHYSICAL REVIEW LETTERS, 1996, 77 (15) :3078-3081

[2]

Barut A., 1977, THEORY GROUP REPRESE

[3] Predictions from conformal algebra for the deeply virtual Compton scattering [J].

Belitsky, AV ;

Muller, D .

PHYSICS LETTERS B, 1998, 417 (1-2) :129-140

[4] Next-to-leading order evolution of twist-two conformal operators: The Abelian case [J].

Belitsky, AV ;

Muller, D .

NUCLEAR PHYSICS B, 1998, 527 (1-2) :207-234

[5] Broken conformal invariance and spectrum of anomalous dimensions in QCD [J].

Belitsky, AV ;

Müller, D .

NUCLEAR PHYSICS B, 1999, 537 (1-3) :397-442

[6]

BELITSKY AV, 1997, P 31 PNPI WINT SCH N, P369

[7]

BELITSKY AV, 1997, NUCL PHYS B, V503, P27

[8] Integrability of three-particle evolution equations in QCD [J].

Braun, VM ;

Derkachov, SE ;

Manashov, AN .

PHYSICAL REVIEW LETTERS, 1998, 81 (10) :2020-2023

[9]

BRAUN VM, HEPPH9902375

[10] EVOLUTION-EQUATIONS FOR QUASI-PARTONIC OPERATORS [J].

BUKHVOSTOV, AP ;

FROLOV, GV ;

LIPATOV, LN ;

KURAEV, EA .

NUCLEAR PHYSICS B, 1985, 258 (3-4) :601-646

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