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

页码：211 / 214

页数：4

共 50 条

[21] EXOTIC MESONS FROM QCD SUM-RULES
GOVAERTS, J
DEVIRON, F
GUSBIN, D
WEYERS, J
PHYSICS LETTERS B, 1983, 128 (3-4) : 262 - 268
[22] ORDER OF THE QCD TRANSITION AND QCD SUM-RULES
ADAMI, C
BROWN, GE
PHYSICAL REVIEW D, 1992, 46 (01): : 478 - 481
[23] X-SPACE SUM-RULES AND THE PION WAVE-FUNCTION IN QCD
JOHNSTON, DA
JONES, HF
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1986, 33 (02): : 281 - 285
[24] QCD SUM-RULES AND THE QBARQQBARQ SYSTEM
LATORRE, JI
PASCUAL, P
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1985, 11 (12) : L231 - L233
[25] HEAVY QUARKS FROM QCD SPECTRAL SUM-RULES
NARISON, S
NUCLEAR PHYSICS B, 1995, : 446 - 456
[26] QCD SUM-RULES FOR LIGHT MESONS
NARISON, S
NUCLEAR PHYSICS B, 1981, 182 (1-2) : 59 - 76
[27] QCD SUM-RULES AND CHIRAL LOGARITHMS
LEE, SH
CHOE, S
COHEN, TD
GRIEGEL, DK
PHYSICS LETTERS B, 1995, 348 (3-4) : 263 - 269
[28] RIGID STRINGS AND QCD SUM-RULES
BAGAN, E
PHYSICS LETTERS B, 1987, 192 (3-4) : 420 - 426
[29] QCD SUM-RULES FOR BARYONIC CURRENTS
CHUNG, Y
DOSCH, HG
KREMER, M
SCHALL, D
PHYSICS LETTERS B, 1981, 102 (2-3) : 175 - 179
[30] NUCLEON CHARGE RADIUS FROM QCD SUM-RULES
BALITSKY, II
KOLESNICHENKO, AV
YUNG, AV
PHYSICS LETTERS B, 1985, 157 (04) : 309 - 316

← 1 2 3 4 5 →