Ds semileptonic decays

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Ds semileptonic decays

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2014-12

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We measure six exclusive Ds semileptonic branching ratios using CLEO-c data collected at 4170 MeV. We isolate our semileptonic events by reconstructing a tagged Ds to identify a Ds*Ds event, then we find an electron and the semileptonic hadron. Dropping the Ds* daughter photon gives us additional events and avoids the need to model soft photon backgrounds, at the expense of a clean neutrino missing mass. We obtain BR(Ds→φeν) = (2.14±0.17±0.09)% and BR(Ds→ηeν) = (2.28±0.14±0.20)% for the two largest branching ratios.

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University of Minnesota Ph.D. dissertation. December 2014. Major: Physics. Major: Daniel Cronin-Hennessy. 1 computer file (PDF); xxxvii, 306 pages.

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Hietala, Justin Thomas. (2014). Ds semileptonic decays. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/171127.

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