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Measurement of the form factors in the decay D+ -> omega e(+)nu(e) and search for the decay D+ -> phi 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..
Inst High Energy Phys, Beijing 100049, Peoples R China..
Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
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2015 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 92, no 7, 071101Article in journal (Refereed) Published
Abstract [en]

Using 2.92 fb(-1) of electron-positron annihilation data collected at a center-of-mass energy of root s = 3.773 GeV with the BESIII detector, we present an improved measurement of the branching fraction B(D+ -> omega e(+)nu(e)) = (1.63 +/- 0.11 +/- 0.08) x 10(-3). The parameters defining the corresponding hadronic form factor ratios at zero momentum transfer are determined for the first time; we measure them to be r(V) = 1.24 +/- 0.09 +/- 0.06 and r(2) = 1.06 +/- 0.15 +/- 0.05. The first and second uncertainties are statistical and systematic, respectively. We also search for the decay D+ -> phi e(+)nu(e). An improved upper limit B(D+ -> phi e(+)nu(e)) < 1.3 x 10(-5) is set at 90% confidence level.

Place, publisher, year, edition, pages
2015. Vol. 92, no 7, 071101
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-267214DOI: 10.1103/PhysRevD.92.071101ISI: 000363014700001OAI: oai:DiVA.org:uu-267214DiVA: diva2:872468
Funder
Swedish Research Council
Available from: 2015-11-19 Created: 2015-11-19 Last updated: 2017-12-01Bibliographically approved

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Johansson, TordKupsc, AndrzejLi, CuiPettersson, JoachimSchoenning, KarinWolke, Magnus

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