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Measurement of integrated luminosity and center-of-mass energy of data taken by BESIII at √s=2.125 GeV
Inst High Energy Phys, Beijing 100049, Peoples R China..
GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.;Novosibirsk State Univ, Novosibirsk 630090, Russia. NRC Kurchatov Inst, PNPI, Gatchina 188300, Russia..
Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
Inst High Energy Phys, Beijing 100049, Peoples R China..
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2017 (English)In: Chinese Physics C, High Energy Physics & Nuclear Physics, ISSN 1674-1137, E-ISSN 0899-9996, Vol. 41, no 11, article id 113001Article in journal (Refereed) Published
Abstract [en]

To study the nature of the state Y (2175), a dedicated data set of e(+)e(-) collision data was collected at the center-of-mass energy of 2.125 GeV with the BESIII detector at the BEPCII collider. By analyzing large-angle Bhabha scattering events, the integrated luminosity of this data set is determined to be 108.49 +/- 0.02 +/- 0.85 pb(-1), where the first uncertainty is statistical and the second one is systematic. In addition, the center-of-mass energy of the data set is determined with radiative dimuon events to be 2126.55 +/- 0.03 +/- 0.85 MeV, where the first uncertainty is statistical and the second one is systematic.

Place, publisher, year, edition, pages
2017. Vol. 41, no 11, article id 113001
Keywords [en]
Bhabha scattering, luminosity, radiative dimuon events, center-of-mass energy
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-341654DOI: 10.1088/1674-1137/41/11/113001ISI: 000414482100001OAI: oai:DiVA.org:uu-341654DiVA, id: diva2:1183348
Funder
Swedish Research CouncilAvailable from: 2018-02-16 Created: 2018-02-16 Last updated: 2018-02-16Bibliographically approved

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