NONLOCAL CONDENSATES AND QCD SUM-RULES FOR THE PION FORM-FACTOR

被引:134
作者
BAKULEV, AP
RADYUSHKIN, AV
机构
[1] CONTINUOUS ELECTRON BEAM ACCELERATOR FACIL,NEWPORT NEWS,VA 23606
[2] JOINT INST NUCL RES,THEORET PHYS LAB,MOSCOW 101000,USSR
关键词
D O I
10.1016/0370-2693(91)91304-E
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We extend the QCD sum rule analysis of the pion electromagnetic form factor F(pi)(Q2) into the region of moderately large momentum transfers 3 less than or similar to Q2 less than or similar to 10 GeV2, where one should take into account the effects due to nonzero average virtuality of the vacuum quarks and gluons.
引用
收藏
页码:223 / 230
页数:8
相关论文
共 25 条
[1]  
BELYAEV VM, 1982, ZH EKSP TEOR FIZ+, V93, P876
[2]  
BRODSKY SJ, 1979, PHYS LETT B, V87, P359
[3]  
BRODSKY SJ, 1989, SLACPUB5116 PREPR
[4]   EXCLUSIVE DECAYS OF HEAVY MESONS [J].
CHERNYAK, VL ;
ZHITNITSKY, AR .
NUCLEAR PHYSICS B, 1982, 201 (03) :492-526
[5]  
CHERNYAK VL, 1977, JETP LETT+, V26, P594
[6]  
CHERNYAK VL, 1977, JETP LETT+, V25, P510
[7]   ASYMPTOTIC-BEHAVIOR OF EXCLUSIVE PROCESSES IN QCD [J].
CHERNYAK, VL ;
ZHITNITSKY, AR .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1984, 112 (3-4) :173-318
[8]  
CHERNYAK VL, 1983, NUCL PHYS B, V214, P547
[9]  
EFREMOV AV, 1980, PHYS LETT B, V94, P245, DOI 10.1016/0370-2693(80)90869-2
[10]   PION FORM-FACTOR [J].
FARRAR, GR ;
JACKSON, DR .
PHYSICAL REVIEW LETTERS, 1979, 43 (04) :246-249