POWER CORRECTIONS TO QCD SUM-RULES FOR COMPTON-SCATTERING

被引：6
作者：
CORIANO, C
机构：
[1] Institute for Theoretical Physics, University of Stockholm, 113 85 Stockholm
来源：
NUCLEAR PHYSICS B | 1993年 / 410卷 / 01期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0550-3213(93)90574-9
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We extend previous work on sum rules for the invariant amplitudes of pion Compton scattering by deriving a complete lowest-order perturbative spectral function - and its leading non-perturbative power corrections - for a specific combination of the two helicities (H-1 + H-2) of this process. Using some properties of a modified version of the Borel transform, we develop a method of calculation of the gluonic corrections which can be easily extended to other similar reactions, such as proton Compton scattering. A preliminary comparison of the new sum rule with the pion form factor sum rule is made.
引用
收藏
页码：90 / 114
页数：25
相关论文
共 50 条
[31]   A CLASS OF MODIFIED SUM-RULES IN QCD [J].
FISCHER, J ;
KOLAR, P .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1987, 34 (03) :375-384
[32]   QCD SUM-RULES AND HYBRID MESONS [J].
GOVAERTS, J ;
DEVIRON, F ;
GUSBIN, D ;
WEYERS, J .
NUCLEAR PHYSICS B, 1984, 248 (01) :1-18
[33]   SUM-RULES AND EXCLUSIVE PROCESSES IN QCD [J].
RADYUSHKIN, AV .
ACTA PHYSICA POLONICA B, 1984, 15 (05) :403-417
[34]   QCD SUM-RULES WITH FINITE MASSES [J].
MEYER-HERMANN, M ;
SCHAFER, A ;
GREINER, W .
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1995, 351 (03) :345-351
[35]   QCD SUM-RULES AND TENSOR MESONS [J].
ALIEV, TM ;
SHIFMAN, MA .
SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1982, 36 (06) :891-896
[36]   QCD SUM-RULES VERSUS EXPERIMENT [J].
BOUVY, M ;
LAMBIN, M .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1986, 32 (01) :55-58
[37]   NUCLEON-NUCLEON-SCATTERING LENGTHS IN QCD SUM-RULES - REPLY [J].
KONDO, Y ;
MORIMATSU, O .
PHYSICAL REVIEW LETTERS, 1994, 72 (19) :3129-3129
[38]   ANOMALOUS COMMUTATOR CORRECTIONS TO SUM-RULES [J].
MUNIAIN, JP ;
WUDKA, J .
PHYSICAL REVIEW D, 1995, 52 (09) :5194-5201
[39]   NUCLEON-NUCLEON-SCATTERING LENGTHS IN QCD SUM-RULES - COMMENT [J].
FURNSTAHL, RJ ;
HATSUDA, T .
PHYSICAL REVIEW LETTERS, 1994, 72 (19) :3128-3128
[40]   HADRON-NUCLEON SCATTERING LENGTHS FROM QCD SUM-RULES [J].
MORIMATSU, O .
PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 1995, (120) :343-352
12345