THE PION POLARIZABILITY FROM QCD SUM-RULES

被引：8
作者：
LAVELLE, MJ [1 ]
NASRALLAH, NF [1 ]
SCHILCHER, K [1 ]
机构：
[1] LEBANESE UNIV,FAC SCI,BEIRUT,LEBANON
来源：
PHYSICS LETTERS B | 1994年 / 335卷 / 02期
关键词：
D O I：
10.1016/0370-2693(94)91415-X
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The electromagnetic polarisability of charged pions, alpha(E), has recently attracted both theoretical and experimental attention. Unfortunately the experimental results disagree with each other. We have investigated this polarisation via a QCD sum rule approach and find alpha(E) = 5.6 +/- 0.5 x 10(-4) fm3, which is in agreement with one experiment and disagrees with the result of chiral perturbation theory.
引用
收藏
页码：211 / 214
页数：4
相关论文
共 50 条
  • [31] DIQUARK DECAY CONSTANTS FROM QCD SUM-RULES
    JAMIN, M
    NEUBERT, M
    PHYSICS LETTERS B, 1990, 238 (2-4) : 387 - 394
  • [32] HERMAPHRODITE MESONS AND QCD SUM-RULES
    LATORRE, JI
    NARISON, S
    PASCUAL, P
    TARRACH, R
    PHYSICS LETTERS B, 1984, 147 (1-3) : 169 - 174
  • [33] QCD SUM-RULES AT FINITE TEMPERATURE
    DOMINGUEZ, CA
    LOEWE, M
    ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1991, 51 (01): : 69 - 72
  • [34] LIGHT QUARK CONDENSATES FROM QCD SUM-RULES
    DOMINGUEZ, CA
    KREMER, M
    PAPADOPOULOS, NA
    SCHILCHER, K
    ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1985, 27 (03): : 481 - 489
  • [35] MESON GLUONIUM MIXING FROM QCD SUM-RULES
    NARISON, S
    PAK, N
    PAVER, N
    PHYSICS LETTERS B, 1984, 147 (1-3) : 162 - 168
  • [36] SUM-RULES AND EXCLUSIVE PROCESSES IN QCD
    RADYUSHKIN, AV
    ACTA PHYSICA POLONICA B, 1984, 15 (05): : 403 - 417
  • [37] QCD SUM-RULES AND TENSOR MESONS
    ALIEV, TM
    SHIFMAN, MA
    SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1982, 36 (06): : 891 - 896
  • [38] A CLASS OF MODIFIED SUM-RULES IN QCD
    FISCHER, J
    KOLAR, P
    ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1987, 34 (03): : 375 - 384
  • [39] QCD SUM-RULES WITH FINITE MASSES
    MEYER-HERMANN, M
    SCHAFER, A
    GREINER, W
    ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1995, 351 (03): : 345 - 351
  • [40] QCD SUM-RULES AND HYBRID MESONS
    GOVAERTS, J
    DEVIRON, F
    GUSBIN, D
    WEYERS, J
    NUCLEAR PHYSICS B, 1984, 248 (01) : 1 - 18
12345