A Method to Measure cos(2beta) Using Time-Dependent Dalitz Plot Analysis of B0 -> D_CP pi+ pi-

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dc.creatorLatham, Thomas
dc.creatorGershon, Tim
dc.date2008-09-04
dc.date2008-12-15
dc.date.accessioned2026-07-07T12:15:31Z
dc.date.available2026-07-07T12:15:31Z
dc.descriptionWe present a feasibility study of a method to measure the cosine of twice the CKM Unitarity Triangle angle beta using a time-dependent Dalitz plot analysis of B0 -> D pi+ pi- decays, where the neutral D meson is reconstructed in decays to CP eigenstates. We show that this method can be used at the B factories to make a measurement of cos(2beta) that is competitive with, or more precise than, other techniques using different quark-level transitions, while sin(2beta) can be measured to an accuracy more precise than any existing measurement using b -> c ubar d transitions. Furthermore, this technique has great potential to be employed at LHCb.
dc.description22 pages, 9 figures, 3 tables. v3: Minor changes to the text and some figures following suggestions from journal referees
dc.identifierhttps://arxiv.org/abs/0809.0872
dc.identifierhttp://arxiv.org/abs/0809.0872
dc.identifierJ.Phys.G36:025006,2009
dc.identifierdoi:10.1088/0954-3899/36/2/025006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211516
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleA Method to Measure cos(2beta) Using Time-Dependent Dalitz Plot Analysis of B0 -> D_CP pi+ pi-
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