A method of measuring cos(2 beta) using a time-dependent dalitz plot analysis of B-0 -> D-CP π+π-
Latham, Thomas and Gershon, T. J.. (2009) A method of measuring cos(2 beta) using a time-dependent dalitz plot analysis of B-0 -> D-CP π+π-. Journal of Physics G-Nuclear and Particle Physics, Vol.36 (No.2). 025006. ISSN 0954-3899
WRAP_Latham_0809.0872v3.pdf - Accepted Version - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Official URL: http://dx.doi.org/10.1088/0954-3899/36/2/025006
We present a feasibility study of a previously outlined method for measuring both the sine and the cosine of twice the Cabibbo-Kobayashi-Maskawa (CKM) Unitarity Triangle angle beta using a time-dependent Dalitz plot analysis of B-0 -> 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(2 beta) that is competitive with, or more precise than, other techniques using different quark-level transitions, while sin(2 beta) can be measured to a better precision than any existing measurement using b -> c (u) over bard transitions. Furthermore, this technique has great potential to be employed at LHCb.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Divisions:||Faculty of Science > Physics|
|Library of Congress Subject Headings (LCSH):||Beta decay, Particles (Nuclear physics) -- Flavor|
|Journal or Publication Title:||Journal of Physics G-Nuclear and Particle Physics|
|Official Date:||February 2009|
|Number of Pages:||14|
|Access rights to Published version:||Restricted or Subscription Access|
|Funder:||Science and Technology Facilities Council (Great Britain) (STFC)|
 N. Cabibbo, Phys. Rev. Lett. 10, 531 (1963).
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