Recent Results from the CMD-3 Detector at the VEPP-2000 e+e– Collider

We report about measurement of the $${{e}^{ + }}{{e}^{ - }} \to {{\pi }^{ + }}{{\pi }^{ - }}$$ process cross section performed with the CMD-3 detector at VEPP-2000 $${{e}^{ + }}{{e}^{ - }}$$ collider. Integrated luminosity for the measurement is about 88 pb–1 collected in center-of-mass energy range from 0.32 to 1.2 GeV. Systematic error of the cross section near $$\rho $$ (770) resonance is about 0.7%. The cross section values are used for evalution of the hadronic contribution to $${{(g - 2)} \mathord{\left/ {\vphantom {{(g - 2)} 2}} \right. \kern-0em} 2}$$ of muon.

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Publication Details

Journal
Physics of Particles and Nuclei
Published
2024-08-01
DOI
https://doi.org/10.1134/s1063779624700023
Primary Topic
Particle physics theoretical and experimental studies
Type
article
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article

Recent Results from the CMD-3 Detector at the VEPP-2000 e+e– Collider

P.A. Lukin
Physics of Particles and Nuclei
Particle physics theoretical and experimental studies
article

Recent Results from the CMD-3 Detector at the VEPP-2000 e+e– Collider

P.A. Lukin
article en

Abstract

We report about measurement of the $${{e}^{ + }}{{e}^{ - }} \to {{\pi }^{ + }}{{\pi }^{ - }}$$ process cross section performed with the CMD-3 detector at VEPP-2000 $${{e}^{ + }}{{e}^{ - }}$$ collider. Integrated luminosity for the measurement is about 88 pb–1 collected in center-of-mass energy range from 0.32 to 1.2 GeV. Systematic error of the cross section near $$\rho $$ (770) resonance is about 0.7%. The cross section values are used for evalution of the hadronic contribution to $${{(g - 2)} \mathord{\left/ {\vphantom {{(g - 2)} 2}} \right. \kern-0em} 2}$$ of muon.

Physics of Particles and NucleiVol. 55(4)
Novosibirsk State University (RU), Budker Institute of Nuclear Physics (RU)
Openalex Percentile: Top 96%
Particle physics theoretical and experimental studies
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