Exclusive evolution kernels in two-loop order:: parity even sector

被引：19

作者：

Belitsky, AV ^{[1
]}

Müller, D ^{[1
]}

机构：

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

来源：

PHYSICS LETTERS B | 1999年 / 464卷 / 3-4期

关键词：

evolution equation; two-loop exclusive kernels; supersymmetric and conformal constraints;

D O I：

10.1016/S0370-2693(99)01003-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We complete the construction of the non-forward evolution kernels in next-to-leading order responsible for the scale dependence of e.g. parity even singlet distribution amplitudes. Our formalism is designed to avoid any explicit two-loop calculations employing instead conformal and supersymmetric constraints as well as known splitting functions. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：249 / 256

页数：8

共 29 条

[1] Two-loop effects in the evolution of non-forward distributions [J].

Belitsky, AV ;

Muller, D ;

Niedermeier, L ;

Schafer, A .

PHYSICS LETTERS B, 1998, 437 (1-2) :160-168

[2] Leading logarithmic evolution of the off-forward distributions [J].

Belitsky, AV ;

Geyer, B ;

Muller, D ;

Schafer, A .

PHYSICS LETTERS B, 1998, 421 (1-4) :312-318

[3] 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

[4] Implications of N=1 supersymmetry for QCD conformal operators [J].

Belitsky, AV ;

Müller, D ;

Schäfer, A .

PHYSICS LETTERS B, 1999, 450 (1-3) :126-135

[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] Evolution of non-forward parton distributions in next-to-leading order:: singlet sector [J].

Belitsky, AV ;

Müller, D ;

Niedermeier, L ;

Schäfer, A .

NUCLEAR PHYSICS B, 1999, 546 (1-2) :279-298

[7]

BELITSKY AV, SCALING VIOLATIONS F

[8]

BELITSKY AV, N EQUALS 1 SUPERSYMM

[9]

BELITSKY AV, RECONSTRUCTION NONFO

[10]

Brodsky S.J., 1989, PERTURBATIVE QUANTUM

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