Light-cone sum rules for the nucleon form factors

被引：101

作者：

Braun, VM ^{[1
]}

Lenz, A

Mahnke, N

Stein, E

机构：

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

[2] Maharishi Univ Management, Dept Phys, NL-6063 NP Vlodrop, Netherlands

来源：

PHYSICAL REVIEW D | 2002年 / 65卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.65.074011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We argue that soft nonfactorizable terms give a significant contribution to the baryon form factors at intermediate momentum transfers and set up a framework for the calculation of such terms in the light-cone sum rule approach. Among them, contributions of three-quark states with different helicity structure compared to the leading twist prove to be the most important. The leading-order sum rules are derived and confronted with the experimental data.

引用

页码：740111 / 7401114

页数：14

共 54 条

[1] MEASUREMENTS OF THE ELECTRIC AND MAGNETIC FORM-FACTORS OF THE PROTON FROM Q(2)=1.75 TO 8.83 (GEV/C)(2) [J].

ANDIVAHIS, L ;

BOSTED, PE ;

LUNG, A ;

STUART, LM ;

ALSTER, J ;

ARNOLD, RG ;

CHANG, CC ;

DIETRICH, FS ;

DODGE, W ;

GEARHART, R ;

GOMEZ, J ;

GRIFFIOEN, KA ;

HICKS, RS ;

HYDEWRIGHT, CE ;

KEPPEL, C ;

KUHN, SE ;

LICHTENSTADT, J ;

MISKIMEN, RA ;

PETERSON, GA ;

PETRATOS, GG ;

ROCK, SE ;

ROKNI, S ;

SAKUMOTO, WK ;

SPENGOS, M ;

SWARTZ, K ;

SZALATA, Z ;

TAO, LH .

PHYSICAL REVIEW D, 1994, 50 (09) :5491-5517

[2]

Avdeenko V. A., 1981, Yadernaya Fizika, V33, P481

[3] NONLOCAL CONDENSATES AND QCD SUM-RULES FOR THE PION FORM-FACTOR [J].

BAKULEV, AP ;

RADYUSHKIN, AV .

PHYSICS LETTERS B, 1991, 271 (1-2) :223-230

[4] THE NONLOCAL OPERATOR EXPANSION FOR INCLUSIVE PARTICLE-PRODUCTION IN E+E- ANNIHILATION [J].

BALITSKY, II ;

BRAUN, VM .

NUCLEAR PHYSICS B, 1991, 361 (01) :93-140

[5] RADIATIVE DECAY SIGMA+-]P-GAMMA IN QUANTUM CHROMODYNAMICS [J].

BALITSKY, II ;

BRAUN, VM ;

KOLESNICHENKO, AV .

NUCLEAR PHYSICS B, 1989, 312 (03) :509-550

[6] EVOLUTION-EQUATIONS FOR QCD STRING-OPERATORS [J].

BALITSKY, II ;

BRAUN, VM .

NUCLEAR PHYSICS B, 1989, 311 (03) :541-584

[7] Higher twist distribution amplitudes of vector mesons in QCD: twist-4 distributions and meson mass corrections [J].

Ball, P ;

Braun, VM .

NUCLEAR PHYSICS B, 1999, 543 (1-2) :201-238

[8] Higher twist distribution amplitudes of vector mesons in QCD: Formalism and twist 3 distributions [J].

Ball, P ;

Braun, VM ;

Koike, Y ;

Tanaka, K .

NUCLEAR PHYSICS B, 1998, 529 (1-2) :323-382

[9] MEASUREMENT OF PROTON AND NEUTRON ELECTROMAGNETIC FORM-FACTORS AT SQUARED 4-MOMENTUM TRANSFERS UP TO 3 (GEV-C)2 [J].

BARTEL, W ;

BUSSER, FW ;

DIX, WR ;

FELST, R ;

HARMS, D ;

KREHBIEL, H ;

KUHLMANN, PE ;

MCELROY, J ;

MEYER, J ;

WEBER, G .

NUCLEAR PHYSICS B, 1973, 58 (02) :429-475

[10] Soft contribution to form factors of the gamma*p->Delta(+) transition [J].

Belyaev, VM ;

Radyushkin, AV .

PHYSICAL REVIEW D, 1996, 53 (11) :6509-6521

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