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Study of the decays D + → η ( ′ ) e + ν e
The charm semileptonic decays D+→ηe+νe and D+→η′e+νe are studied with a sample of e+e− collision data corresponding to an integrated luminosity of 2.93 fb−1 collected at s=3.773 GeV with the BESIII detector. We measure the branching fractions for D+→ηe+νe to be (10.74±0.81±0.51)×10−4, and for D+→η′e...
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Published in: | Physical review. D 2018-05, Vol.97 (9), Article 092009 |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The charm semileptonic decays D+→ηe+νe and D+→η′e+νe are studied with a sample of e+e− collision data corresponding to an integrated luminosity of 2.93 fb−1 collected at s=3.773 GeV with the BESIII detector. We measure the branching fractions for D+→ηe+νe to be (10.74±0.81±0.51)×10−4, and for D+→η′e+νe to be (1.91±0.51±0.13)×10−4, where the uncertainties are statistical and systematic, respectively. In addition, we perform a measurement of the form factor in the decay D+→ηe+νe. All the results are consistent with those obtained by the CLEO-c experiment. |
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ISSN: | 2470-0010 2470-0029 |
DOI: | 10.1103/PhysRevD.97.092009 |