Abstract
We report the first determination of the relative strong-phase difference between D-0 -> K-S,L(0) K+K- and (D) over bar (0) -> K-S,L(0) K+K-. In addition, we present updated measurements of the relative strong-phase difference between D-0 -> K-S,L(0) pi(+)pi(-) and (D) over bar (0) -> K-S,L(0) pi(+)pi(-). Both measurements exploit the quantum coherence between a pair of D-0 and (D) over bar (0) mesons produced from psi(3770) decays. The strong-phase differences measured are important for determining the Cabibbo-Kobayashi-Maskawa angle gamma/phi(3) in B- -> K- (D) over tilde (0) decays, where (D) over tilde (0) is a D-0 or (D) over bar (0) meson decaying to K(S)(0)h(+)h(-) (h = pi, K), in a manner independent of the model assumed to describe the D-0 -> K(S)(0)h(+)h(-) decay. Using our results, the uncertainty in gamma/phi(3) due to the error on the strong-phase difference is expected to be between 1.7 degrees and 3.9 degrees for an analysis using B- -> K- (D) over tilde (0), (D) over tilde (0) -> K-S(0) pi(+)pi(-) decays, and between 3.2 degrees and 3.9 degrees for an analysis based on B- -> K- -> (D) over tilde (0), (D) over tilde (0) -> K-S(0) K+K- decays. A measurement is also presented of the CP-odd fraction, F-, of the decay D-0 -> K-S(0) K+K- in the region of the phi -> K+K- resonance. We find that in a region within 0.01 GeV2/c(4) of the nominal phi mass squared F- > 0.91 at the 90% confidence level.
Published in:
Physical Review D 82,11 (2010)
Link to original published article:
http://dx.doi.org/10.1103/PhysRevD.82.112006
Date of Version
December 2010
Recommended Citation
Libby, J.; Kornicer, M.; Mitchell, R. E.; Shepherd, M. R.; Tarbert, C. M.; Besson, D.; Pedlar, T. K.; Xavier, J.; Cronin-Hennessy, D.; Hietala, J.; Zweber, P.; Dobbs, S.; Metreveli, Z.; Seth, K. K.; Tomaradze, A.; Xiao, T.; Brisbane, S.; Malde, S.; Martin, L.; Powell, A.; Spradlin, P.; Wilkinson, G.; Mendez, H.; Ge, J. Y.; Miller, D. H.; Shipsey, I. P. J.; Xin, B.; Adams, G. S.; Hu, D.; Moziak, B.; Napolitano, J.; Ecklund, K. M.; Insler, J.; Muramatsu, H.; Park, C. S.; Pearson, L. J.; Thorndike, E. H.; Yang, F.; Ricciardi, S.; Thomas, C.; Artuso, M.; Blusk, S.; Horwitz, N.; Mountain, R.; Skwarnicki, T.; Stone, S.; Wang, J. C.; Zhang, L. M.; Gershon, T.; Bonvicini, G.; Cinabro, D.; Lincoln, A.; Smith, M. J.; Zhou, P.; Zhu, J.; Naik, P.; Rademacker, J.; Asner, D. M.; Edwards, K. W.; Randrianarivony, K.; Tatishvili, G.; Briere, R. A.; Vogel, H.; Onyisi, P. U. E.; Rosner, J. L.; Alexander, J. P.; Cassel, D. G.; Das, S.; Ehrlich, R.; Fields, L.; Gibbons, L.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Kreinick, D. L.; Kuznetsov, V. E.; Patterson, J. R.; Peterson, D.; Riley, D.; Ryd, A.; Sadoff, A. J.; Shi, X.; Sun, W. M.; Yelton, J.; Rubin, P.; Lowrey, N.; Mehrabyan, S.; Selen, M.; and Wiss, J., "Model-independent determination of the strong-phase difference between D-0 and
(D)over-bar(0) -> KS,L(0)h(+)h(-) (h = pi, K) and its impact on the measurement
of the CKM angle gamma/phi(3)" (2010). Department of Physics and Astronomy Faculty Publications. Paper 1280.
https://docs.lib.purdue.edu/physics_articles/1280