Monte Carlo generator for full simulation of e{sup +}e{sup -}{yields}hadrons cross section scan experiment

Journal Article · Fri Sep 01 00:00:00 EDT 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.054012· OSTI ID:20871100

Zhang, D; Rong, G; Chen, J C ^[1]

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1. Institute of High Energy Physics, Beijing 100049 (China)

A generator with {alpha}{sup 2} order radiative correction effects, including both the initial state radiative corrections and the photon vacuum polarization corrections, is built for the full simulation of e{sup +}e{sup -}{yields}hadrons in a cross section scan experiment in the quarkonium energy region. The contributions from the hadron production structures including the resonances of 1{sup --} quarkonium families and the light hadrons spectrum below 2 GeV as well as the QED continuum hadron spectrum are all taken into account in the event generation. It was employed successfully to determine the detection efficiency for selection of the events of e{sup +}e{sup -}{yields}hadrons from the data taken in the energy region from 3.650 GeV to 3.872 GeV covering both the {psi}(3686) and {psi}(3770) resonances in BES experiment. The generator reproduces the properties of hadronic event production and inclusive decays well.

• OSTI ID: 20871100
• Journal Information: Physical Review. D, Particles Fields, Vol. 74, Issue 5; Other Information: DOI: 10.1103/PhysRevD.74.054012; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEIJING ELECTRON-POSITRON COLLIDER
COMPUTERIZED SIMULATION
CROSS SECTIONS
EFFICIENCY
ELECTRON-POSITRON INTERACTIONS
GEV RANGE
MONTE CARLO METHOD
MULTIPARTICLE SPECTROMETERS
PARTICLE DECAY
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PHOTONS
PSI-3685 MESONS
PSI-3770 MESONS
QUANTUM ELECTRODYNAMICS
RADIATIVE CORRECTIONS
VACUUM POLARIZATION