Published 2018 | Version v1
Journal article Metadata-only

Pion light-cone distribution amplitude from data on pion form factors

Creators

  • 1. University of Siegen (Germany)

Description

An accurate extraction of the pion light-cone distribution amplitude (LCDA) is important in the framework of different approaches such as Soft-Collinear Effective Theory (SCET), Light-Cone Sum Rules (LCSR), QCD factorization (QCDF). We revisit the LCSRs for the spacelike electromagnetic pion and the πγ*γ form factors. The LCSR results are related with experimental data on these form factors at timelike region by means of a dispersion relation. This allows for extracting and constraining the Gegenbauer moments of the pion LCDA.

Availability note (English)

Available from: https://www.dpg-verhandlungen.de/

Additional details

Identifiers

URL
https://www.dpg-verhandlungen.de/;

Publishing Information

Journal Title
Verhandlungen der Deutschen Physikalischen Gesellschaft
Journal Issue
Wuerzburg 2018 issue
Journal Page Range
[1 p.]
ISSN
0420-0195
CODEN
VDPEAZ

Conference

Title
DPG Spring meeting 2018 of the Section Matter and Cosmos (SMuK) with the Division of Physics Education and the working groups Equal Opportunities, Industry and Economics, Young DPG, Physics, Modern Information Technology and Artificial Intelligence
Original Conference Title
DPG-Fruehjahrstagung 2018 der Sektion Materie und Kosmos (SMuK) mit dem Fachverband Didaktik der Physik und den Arbeitskreisen Chancengleichheit, Industrie und Wirtschaft, Junge DPG, Physik, moderne Informationstechnologie und Kuenstliche Intelligenz
Dates
19-23 Mar 2018
Place
Wuerzburg (Germany)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
50068052
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
AMPLITUDES; DIRAC FORM FACTORS; DISPERSION RELATIONS; DISTRIBUTION FUNCTIONS; EXPERIMENTAL DATA; LIGHT CONE; PHOTON-MESON INTERACTIONS; PIONS; POLYNOMIALS; SUM RULES
Descriptors DEC
BOSONS; DATA; DIMENSIONLESS NUMBERS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; EQUATIONS; FORM FACTORS; FUNCTIONS; FUNDAMENTAL INTERACTIONS; HADRONS; INFORMATION; INTERACTIONS; MESONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PHOTON-HADRON INTERACTIONS; PSEUDOSCALAR MESONS; SPACE-TIME

Optional Information

Notes
Session: T 12.4 Mo 16:45; Also available as printed version: Verhandlungen der Deutschen Physikalischen Gesellschaft v. 53(4)