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Determination of the D-0 -> K- pi(+) pi(0) and D-0 -> K- pi(+) pi(+) pi(-) coherence factors and average strong-phase differences using quantum-correlated measurements

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Lowrey, N., Mehrabyan, S., Selen, Mats A., Wiss, J., Mitchell, R. E. (Ryan Edward), Shepherd, M. R., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y. et al.
(2009) Determination of the D-0 -> K- pi(+) pi(0) and D-0 -> K- pi(+) pi(+) pi(-) coherence factors and average strong-phase differences using quantum-correlated measurements. Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.80 (No.3). article no. 031105 . ISSN 1550-7998

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Abstract

The first measurements of the coherence factors (R-K pi pi 0 and R-K3 pi) and the average strong-phase differences((delta(K pi pi 0)(D) and delta(K3 pi)(D))) for D-0 -> K- pi(+) pi(0) and D-0 -> K- pi(+) pi(+) pi(-) are presented. These parameters can be used to improve the determination of the unitarity triangle angle gamma in B- -> DK- decays, where D is a D-0 or (D) over bar (0) meson decaying to the same final state. The measurements are made using quantum-correlated, fully reconstructed D-0(D) over bar (0) pairs produced in e(+)e(-) collisions at the psi(3770) resonance. The measured values are: R-K pi pi 0 = 0.84 +/- 0.07, delta(K pi pi 0)(D) = (227(-17)(+14))degrees, R-K3 pi = 0.33(-0.23)(+0.20), and delta(K3 pi)(D) = (114(-23)(+26))degrees. These results indicate significant coherence in the decay D-0 -> K- pi(+) pi(0), whereas lower coherence is observed in the decay D-0 -> K- pi(+) pi(+) pi(-). The analysis also results in a small improvement in the knowledge of other D-meson parameters, in particular, the strong-phase difference for D-0 -> K- pi(+), delta(K pi)(D), and the mixing parameter y.

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Mesons, Coherence (Nuclear physics), CP violation (Nuclear physics)
Journal or Publication Title: Physical Review D (Particles, Fields, Gravitation and Cosmology)
Publisher: American Physical Society
ISSN: 1550-7998
Official Date: August 2009
Volume: Vol.80
Number: No.3
Number of Pages: 7
Page Range: article no. 031105
Identification Number: 10.1103/PhysRevD.80.031105
Status: Peer Reviewed
Publication Status: Published
Funder: A.P. Sloan Foundation, National Science Foundation (U.S.) (NSF), United States. Dept. of Energy, Natural Sciences and Engineering Research Council of Canada (NSERC), Science and Technology Facilities Council (Great Britain) (STFC)
References:

[1] B. Aubert et al. (BABAR Collaboration), Phys. Rev. D 79,
072009 (2009); K.-F. Chen et al. (Belle Collaboration),
Phys. Rev. Lett. 98, 031802 (2007).
[2] N. Cabibbo, Phys. Rev. Lett. 10, 531 (1963); M.
Kobayashi and T. Maskawa, Prog. Theor. Phys. 49, 652
(1973).
[3] Here and throughout this paper the charge-conjugate state
is implied unless otherwise stated.
[4] M. Gronau and D. London, Phys. Lett. B 253, 483 (1991);
M. Gronau and D. Wyler, Phys. Lett. B 265, 172 (1991).
[5] D. Atwood, I. Dunietz, and A. Soni, Phys. Rev. Lett. 78,
3257 (1997); D. Atwood, I. Dunietz, and A. Soni, Phys.
Rev. D 63, 036005 (2001).
[6] A. Giri, Yu. Grossman, A. Soffer, and J. Zupan, Phys. Rev.
D 68, 054018 (2003).
[7] E. Barberio et al. (Heavy Flavour Averaging Group),
arXiv:0808.1297.
[8] B. Aubert et al. (BABAR Collaboration), Phys. Rev. D 72,
032004 (2005).
[9] Y. Horii et al. (Belle Collaboration), Phys. Rev. D 78,
071901(R) (2008).
[10] D. M. Asner et al. (CLEO Collaboration), Phys. Rev. D 78,
012001 (2008).
[11] C. Amsler et al. (Particle Data Group), Phys. Lett. B 667, 1
(2008).
[12] D. Atwood and A. Soni, Phys. Rev. D 68, 033003 (2003).
[13] For a review, see M. Artuso, B. Meadows, and A. A.
Petrov, Annu. Rev. Nucl. Part. Sci. 58, 249 (2008).
[14] Z. Z. Xing, Phys. Rev. D 55, 196 (1997).
[15] Y. Kubota et al. (CLEO Collaboration), Nucl. Instrum.
Methods Phys. Res., Sect. A 320, 66 (1992); D. Peterson
et al. (CLEO Collaboration), Nucl. Instrum. Methods
Phys. Res., Sect. A 478, 142 (2002); M. Artuso et al.,
Nucl. Instrum. Methods Phys. Res., Sect. A 502, 91
(2003); R. A. Briere et al. (CLEO-c/CESR-c taskforces
and CLEO-c Collaboration), Cornell LEPP Report, CLNS
Report No. 01/1742, 2001.
[16] S. Dobbs et al. (CLEO Collaboration), Phys. Rev. D 76,
112001 (2007).
[17] Q. He et al. (CLEO Collaboration), Phys. Rev. Lett. 100,
091801 (2008).
[18] Differing definitions of the CP operation on a D0 state
between the formalism of charm-mixing measurements
[7,10] and the formalism in thispaper leads to a 180�
phase shift to the measured value of �K�
D when used to
extract the observables and parameters.
[19] See EPAPS Document No. E-PRVDAQ-80-R06915 for
the correlation among parameters. For more information
on EPAPS, see http://www.aip.org/pubservs/epaps.html.
[20] A. Powell, arXiv:0805.1722.
[21] K. Akiba et al., CERN Report No. CERN-LHCb-2008-
031, 2008.
URI: http://wrap.warwick.ac.uk/id/eprint/17317

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