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Study of the decays D+-> eta(('))e(+)nu(e)
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.
Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
Ruhr Univ Bochum, D-44780 Bochum, Germany.
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2018 (English)In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 97, no 9, article id 092009Article in journal (Refereed) Published
Abstract [en]

The charm semileptonic decays D+ -> eta e(+)nu(e) and D+ -> eta'e(+)nu(e) are studied with a sample of e(+)e(-) collision data corresponding to an integrated luminosity of 2.93 fb(-1) collected at root s = 3.773 GeV with the BESIII detector. We measure the branching fractions for D+ -> eta e(+)upsilon(e) to be (10.74 +/- 0.81 +/- 0.51)x10(-4), and for D+ -> eta'e(+)nu(e) to be (1.91 +/- 0.51 +/- 0.13) x 10(-4), where the uncertainties are statistical and systematic, respectively. In addition, we perform a measurement of the form factor in the decay D+ -> eta e(+)nu(e) . All the results are consistent with those obtained by the CLEO-c experiment.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2018. Vol. 97, no 9, article id 092009
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Subatomic Physics Astronomy, Astrophysics and Cosmology
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URN: urn:nbn:se:uu:diva-358086DOI: 10.1103/PhysRevD.97.092009ISI: 000433912000002OAI: oai:DiVA.org:uu-358086DiVA, id: diva2:1241819
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Swedish Research CouncilAvailable from: 2018-08-24 Created: 2018-08-24 Last updated: 2018-08-24Bibliographically approved

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Andersson, Walter IkegamiJohansson, TordKupsc, AndrzejLi, CuiPapenbrock, MichaelPettersson, JoachimSchönning, KarinWolke, Magnus

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Nuclear Physics
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Physical Review D: covering particles, fields, gravitation, and cosmology
Subatomic PhysicsAstronomy, Astrophysics and Cosmology

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