New measurements of the D+(s) ---&gt; phi mu+ nu form-factor ratios

Link, J. M.

doi:10.1016/j.physletb.2004.02.015

New measurements of the D+(s) ---> phi mu+ nu form-factor ratios

Journal Article · Thu Jan 01 04:00:00 EST 2004 · Phys.Lett.B

DOI:https://doi.org/10.1016/j.physletb.2004.02.015· OSTI ID:1893481

Link, J. M.

Using a large sample of D s + → φμ + ν decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of two semileptonic form factor ratios: r v and r 2 . We find r v =1.549±0.250±0.148 and r 2 =0.713±0.202±0.284. These values are consistent with r v and r 2 form factors measured for the process D + → K-*0 ℓ + ν ℓ .

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Contributing Organization:: FOCUS

DOE Contract Number:: AC02-07CH11359

OSTI ID:: 1893481

Report Number(s):: FERMILAB-PUB-04-002-E; arXiv:hep-ex/0401001; oai:inspirehep.net:642204

Journal Information:: Phys.Lett.B, Journal Name: Phys.Lett.B Vol. 586

Country of Publication:: United States

Language:: English

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