Published 2004 | Version v1
Journal article Metadata-only

Vector meson photoproduction and problem of gauge invariance

Creators

  • 1. Joint Institute for Nuclear Research, Dubna (Russian Federation)

Description

It is discussed the problem of gauge invariance of the vector meson photoproduction at small x within the two-gluon exchange model. It is found that the gauge invariance is fulfilled if one includes the graphs with higher Fock states in the meson wave function. The obtained results are used to estimate the amplitudes with longitudinal and transverse photon and vector meson polarization

Abstract (Russian)

Обсуждается проблема калибровочной инвариантности векторных мезонов при малых x в рамках модели двухглюонного обмена. Показано, что калибровочная инвариантность может выполняться, если учитываются графы с высшими фоковскими состояниями в мезонной волновой функции. Полученные результаты использованы для модельных оценок амплитуд с продольной и поперечной поляризацией фотона и векторного мезона

Additional details

Publishing Information

Journal Title
Fizika Ehlementarnykh Chastits i Atomnogo Yadra
Journal Volume
35
Journal Issue
7
Journal Page Range
p. 126-131
ISSN
0367-2026
CODEN
FECAAR

Conference

Title
High energy spin physics and quantum chromodynamics
Original Conference Title
Spinovaya fizika pri vysokikh ehnergiyakh i kvantovaya khromodinamika
Dates
16-20 Sep 2003
Place
Dubna (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
36060489
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
COMPARATIVE EVALUATIONS; ENERGY DEPENDENCE; GAUGE INVARIANCE; GLUON MODEL; HARTREE-FOCK METHOD; HELICITY; PHOTONS; PHOTOPRODUCTION; SPIN ORIENTATION; VECTOR MESONS; WAVE FUNCTIONS
Descriptors DEC
BASIC INTERACTIONS; BOSONS; CALCULATION METHODS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; EVALUATION; FUNCTIONS; HADRONS; INTERACTIONS; INVARIANCE PRINCIPLES; MASSLESS PARTICLES; MATHEMATICAL MODELS; MESONS; ORIENTATION; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; PARTICLE PROPERTIES

Optional Information

Notes
12 refs., 2 figs.