Improved KL->pi e nu Form Factor and Phase Space Integral with Reduced Model Uncertainty

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dc.creatorKTeV collaboration
dc.creatorAbouzaid, E.
dc.date2006-08-25
dc.date2006-08-28
dc.date.accessioned2026-07-07T11:21:58Z
dc.date.available2026-07-07T11:21:58Z
dc.descriptionUsing the published KTeV sample of 2 million KL-> pi e nu decays and a new form factor expansion with a rigorous bound on higher order terms, we present a new determination of the KL->pi e nu form factor and phase space integral. Compared to the previous KTeV result, the uncertainty in the new form factor expansion is negligible and results in an overall uncertainty in the phase space integral (IKe) that is a factor of two smaller: IKe = 0.15392 +- 0.00048 \.
dc.description3 pages, 2 figures, submitted to PRD Rapid Communication
dc.identifierhttps://arxiv.org/abs/hep-ex/0608058
dc.identifierhttp://arxiv.org/abs/hep-ex/0608058
dc.identifierPhys.Rev.D74:097101,2006
dc.identifierdoi:10.1103/PhysRevD.74.097101
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194421
dc.subjectHigh Energy Physics - Experiment
dc.titleImproved KL->pi e nu Form Factor and Phase Space Integral with Reduced Model Uncertainty
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