Published April 25, 2017 | Version v1
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Photon radiation in e+e-→hadrons at low energies with carlomat3.1

Creators

  • 1. Humboldt-Universitaet, Berlin (Germany). Inst. fuer Physik
  • 2. Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany)
  • 3. Univ. of Silesia, Katowice (Poland). Inst. of Physics

Description

We present a sample of results for the cross sections of several processes of low energetic e+e- annihilation into final states containing pions accompanied by one or two photons, or a light lepton pair. The results, which have been obtained with a new version of a multipurpose Monte Carlo program carlomat, labelled 3.1, demonstrate new capabilities of the program which, among others, include a possibility of taking into account either the initial or final state radiation separately, or both at a time, and a possibility of inclusion of the electromagnetic charged pion form factor for processes with charged pion pairs. We also discuss some problems related to the U(1) electromagnetic gauge invariance.

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Additional details

Publishing Information

Imprint Pagination
17 p.
ISSN
0418-9833
Report number
DESY--17-001

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
49015582
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANNIHILATION; C CODES; COMPUTERIZED SIMULATION; DIFFERENTIAL CROSS SECTIONS; EFFECTIVE MASS; ELECTROMAGNETIC FORM FACTORS; ELECTRON-POSITRON INTERACTIONS; GAUGE INVARIANCE; GEV RANGE 01-10; MASS SPECTRA; MEV RANGE 100-1000; MUONS MINUS; MUONS PLUS; PAIR PRODUCTION; PHOTONS; PIONS MINUS; PIONS NEUTRAL; PIONS PLUS; THEORETICAL DATA; U-1 GROUPS
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BOSONS; COMPUTER CODES; CROSS SECTIONS; DATA; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FORM FACTORS; GEV RANGE; HADRONS; INFORMATION; INTERACTIONS; INVARIANCE PRINCIPLES; LEPTON-LEPTON INTERACTIONS; LEPTONS; LIE GROUPS; MASS; MASSLESS PARTICLES; MATTER; MESONS; MEV RANGE; MUONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PARTICLE PROPERTIES; PIONS; PSEUDOSCALAR MESONS; SIMULATION; SPECTRA; SYMMETRY GROUPS; U GROUPS

Optional Information

Secondary number(s)
HU-EP--17-01