Studies of the decays D0→KS0K-π+ and D0→KS0K+π-

J. Insler; H. Muramatsu; C. S. Park; L. J. Pearson; E. H. Thorndike; S. Ricciardi; C. Thomas; M. Artuso; S. Blusk; R. Mountain; T. Skwarnicki; S. Stone; J. C. Wang; L. M. Zhang; G. Bonvicini; D. Cinabro; M. J. Smith; P. Zhou; T. Gershon; P. Naik; J. Rademacker; K. W. Edwards; K. Randrianarivony; R. A. Briere; H. Vogel; P. U.E. Onyisi; J. L. Rosner; J. P. Alexander; D. G. Cassel; S. Das; R. Ehrlich; L. Gibbons; S. W. Gray; D. L. Hartill; D. L. Kreinick; V. E. Kuznetsov; J. R. Patterson; D. Peterson; D. Riley; A. Ryd; A. J. Sadoff; X. Shi; W. M. Sun; J. Yelton; P. Rubin; N. Lowrey; S. Mehrabyan; M. Selen; J. Wiss; J. Libby; M. Kornicer; R. E. Mitchell; D. Besson; T. K. Pedlar; D. Cronin-Hennessy; J. Hietala; S. Dobbs; Z. Metreveli; K. K. Seth; A. Tomaradze; T. Xiao; D. Johnson; S. Malde; L. Martin; A. Powell; G. Wilkinson; D. M. Asner; G. Tatishvili; J. Y. Ge; D. H. Miller; I. P.J. Shipsey; B. Xin; G. S. Adams; J. Napolitano; K. M. Ecklund

doi:10.1103/PhysRevD.85.092016

Studies of the decays D0→KS0K^-π⁺ and D0→KS0K⁺π^-

J. Insler, H. Muramatsu, C. S. Park, L. J. Pearson, E. H. Thorndike, S. Ricciardi, C. Thomas, M. Artuso, S. Blusk, R. Mountain, T. Skwarnicki, S. Stone, J. C. Wang, L. M. Zhang, G. Bonvicini, D. Cinabro, M. J. Smith, P. Zhou, T. Gershon, P. NaikJ. Rademacker, K. W. Edwards, K. Randrianarivony, R. A. Briere, H. Vogel, P. U.E. Onyisi, J. L. Rosner, J. P. Alexander, D. G. Cassel, S. Das, R. Ehrlich, L. Gibbons, S. W. Gray, D. L. Hartill, D. L. Kreinick, V. E. Kuznetsov, J. R. Patterson, D. Peterson, D. Riley, A. Ryd, A. J. Sadoff, X. Shi, W. M. Sun, J. Yelton, P. Rubin, N. Lowrey, S. Mehrabyan, M. Selen, J. Wiss, J. Libby, M. Kornicer, R. E. Mitchell, D. Besson, T. K. Pedlar, D. Cronin-Hennessy, J. Hietala, S. Dobbs, Z. Metreveli, K. K. Seth, A. Tomaradze, T. Xiao, D. Johnson, S. Malde, L. Martin, A. Powell, G. Wilkinson, D. M. Asner, G. Tatishvili, J. Y. Ge, D. H. Miller, I. P.J. Shipsey, B. Xin, G. S. Adams, J. Napolitano, K. M. Ecklund

Department of Physics

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Abstract

The first measurements of the coherence factor R_KS0Kπ and the average strong-phase difference δDKS0Kπ in D0→KS0K ^∓π^± decays are reported. These parameters can be used to improve the determination of the unitary triangle angle γ in B^-→D∼K^- decays, where D∼ is either a D0 or a D^̄0 meson decaying to the same final state, and also in studies of charm mixing. The measurements of the coherence factor and strong-phase difference are made using quantum-correlated, fully reconstructed D0D^̄0 pairs produced in e⁺e^- collisions at the ψ(3770) resonance. The measured values are R_KS0Kπ=0. 73±0.08 and δDKS0Kπ=(8.3±15.2)° for an unrestricted kinematic region and RK^*K=1.00±0.16 and δDK ^*K=(26.5±15.8)° for a region where the combined KS0π^± invariant mass is within 100MeV/c2 of the K ^*(892)^± mass. These results indicate a significant level of coherence in the decay. In addition, isobar models are presented for the two decays, which show the dominance of the K ^*(892)^± resonance. The branching ratio B(D0→KS0K⁺π^-)/B(D0→KS0K ^-π⁺) is determined to be 0.592±0.044(stat) ±0.018(syst), which is more precise than previous measurements.

Original language	English (US)
Article number	092016
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	85
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.85.092016
State	Published - May 29 2012

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.85.092016

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Insler, J., Muramatsu, H., Park, C. S., Pearson, L. J., Thorndike, E. H., Ricciardi, S., Thomas, C., Artuso, M., Blusk, S., Mountain, R., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, L. M., Bonvicini, G., Cinabro, D., Smith, M. J., Zhou, P., Gershon, T., ... Ecklund, K. M. (2012). Studies of the decays D0→KS0K^-π⁺ and D0→KS0K⁺π^-. Physical Review D - Particles, Fields, Gravitation and Cosmology, 85(9), Article 092016. https://doi.org/10.1103/PhysRevD.85.092016

Insler, J, Muramatsu, H, Park, CS, Pearson, LJ, Thorndike, EH, Ricciardi, S, Thomas, C, Artuso, M , Blusk, S, Mountain, R, Skwarnicki, T, Stone, S, Wang, JC, Zhang, LM, Bonvicini, G, Cinabro, D, Smith, MJ, Zhou, P, Gershon, T, Naik, P, Rademacker, J, Edwards, KW, Randrianarivony, K, Briere, RA, Vogel, H, Onyisi, PUE, Rosner, JL, Alexander, JP, Cassel, DG, Das, S, Ehrlich, R, Gibbons, L, Gray, SW, Hartill, DL, Kreinick, DL, Kuznetsov, VE, Patterson, JR, Peterson, D, Riley, D, Ryd, A, Sadoff, AJ, Shi, X, Sun, WM, Yelton, J, Rubin, P, Lowrey, N, Mehrabyan, S, Selen, M, Wiss, J, Libby, J, Kornicer, M, Mitchell, RE, Besson, D, Pedlar, TK, Cronin-Hennessy, D, Hietala, J, Dobbs, S, Metreveli, Z, Seth, KK, Tomaradze, A, Xiao, T, Johnson, D, Malde, S, Martin, L, Powell, A, Wilkinson, G, Asner, DM, Tatishvili, G, Ge, JY, Miller, DH, Shipsey, IPJ, Xin, B, Adams, GS, Napolitano, J & Ecklund, KM 2012, 'Studies of the decays D0→KS0K^-π⁺ and D0→KS0K⁺π^-', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 85, no. 9, 092016. https://doi.org/10.1103/PhysRevD.85.092016

@article{d801c54dd14e4d77afe60671f751b81b,

title = "Studies of the decays D0→KS0K-π+ and D0→KS0K+π-",

abstract = "The first measurements of the coherence factor RKS0Kπ and the average strong-phase difference δDKS0Kπ in D0→KS0K ∓π± decays are reported. These parameters can be used to improve the determination of the unitary triangle angle γ in B-→D∼K- decays, where D∼ is either a D0 or a {\=D}0 meson decaying to the same final state, and also in studies of charm mixing. The measurements of the coherence factor and strong-phase difference are made using quantum-correlated, fully reconstructed D0{\=D}0 pairs produced in e+e- collisions at the ψ(3770) resonance. The measured values are RKS0Kπ=0. 73±0.08 and δDKS0Kπ=(8.3±15.2)° for an unrestricted kinematic region and RK*K=1.00±0.16 and δDK *K=(26.5±15.8)° for a region where the combined KS0π± invariant mass is within 100MeV/c2 of the K *(892)± mass. These results indicate a significant level of coherence in the decay. In addition, isobar models are presented for the two decays, which show the dominance of the K *(892)± resonance. The branching ratio B(D0→KS0K+π-)/B(D0→KS0K -π+) is determined to be 0.592±0.044(stat) ±0.018(syst), which is more precise than previous measurements.",

author = "J. Insler and H. Muramatsu and Park, {C. S.} and Pearson, {L. J.} and Thorndike, {E. H.} and S. Ricciardi and C. Thomas and M. Artuso and S. Blusk and R. Mountain and T. Skwarnicki and S. Stone and Wang, {J. C.} and Zhang, {L. M.} and G. Bonvicini and D. Cinabro and Smith, {M. J.} and P. Zhou and T. Gershon and P. Naik and J. Rademacker and Edwards, {K. W.} and K. Randrianarivony and Briere, {R. A.} and H. Vogel and Onyisi, {P. U.E.} and Rosner, {J. L.} and Alexander, {J. P.} and Cassel, {D. G.} and S. Das and R. Ehrlich and L. Gibbons and Gray, {S. W.} and Hartill, {D. L.} and Kreinick, {D. L.} and Kuznetsov, {V. E.} and Patterson, {J. R.} and D. Peterson and D. Riley and A. Ryd and Sadoff, {A. J.} and X. Shi and Sun, {W. M.} and J. Yelton and P. Rubin and N. Lowrey and S. Mehrabyan and M. Selen and J. Wiss and J. Libby and M. Kornicer and Mitchell, {R. E.} and D. Besson and Pedlar, {T. K.} and D. Cronin-Hennessy and J. Hietala and S. Dobbs and Z. Metreveli and Seth, {K. K.} and A. Tomaradze and T. Xiao and D. Johnson and S. Malde and L. Martin and A. Powell and G. Wilkinson and Asner, {D. M.} and G. Tatishvili and Ge, {J. Y.} and Miller, {D. H.} and Shipsey, {I. P.J.} and B. Xin and Adams, {G. S.} and J. Napolitano and Ecklund, {K. M.}",

year = "2012",

month = may,

day = "29",

doi = "10.1103/PhysRevD.85.092016",

language = "English (US)",

volume = "85",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "9",

}

TY - JOUR

T1 - Studies of the decays D0→KS0K-π+ and D0→KS0K+π-

AU - Insler, J.

AU - Muramatsu, H.

AU - Park, C. S.

AU - Pearson, L. J.

AU - Thorndike, E. H.

AU - Ricciardi, S.

AU - Thomas, C.

AU - Artuso, M.

AU - Blusk, S.

AU - Mountain, R.

AU - Skwarnicki, T.

AU - Stone, S.

AU - Wang, J. C.

AU - Zhang, L. M.

AU - Bonvicini, G.

AU - Cinabro, D.

AU - Smith, M. J.

AU - Zhou, P.

AU - Gershon, T.

AU - Naik, P.

AU - Rademacker, J.

AU - Edwards, K. W.

AU - Randrianarivony, K.

AU - Briere, R. A.

AU - Vogel, H.

AU - Onyisi, P. U.E.

AU - Rosner, J. L.

AU - Alexander, J. P.

AU - Cassel, D. G.

AU - Das, S.

AU - Ehrlich, R.

AU - Gibbons, L.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Kreinick, D. L.

AU - Kuznetsov, V. E.

AU - Patterson, J. R.

AU - Peterson, D.

AU - Riley, D.

AU - Ryd, A.

AU - Sadoff, A. J.

AU - Shi, X.

AU - Sun, W. M.

AU - Yelton, J.

AU - Rubin, P.

AU - Lowrey, N.

AU - Mehrabyan, S.

AU - Selen, M.

AU - Wiss, J.

AU - Libby, J.

AU - Kornicer, M.

AU - Mitchell, R. E.

AU - Besson, D.

AU - Pedlar, T. K.

AU - Cronin-Hennessy, D.

AU - Hietala, J.

AU - Dobbs, S.

AU - Metreveli, Z.

AU - Seth, K. K.

AU - Tomaradze, A.

AU - Xiao, T.

AU - Johnson, D.

AU - Malde, S.

AU - Martin, L.

AU - Powell, A.

AU - Wilkinson, G.

AU - Asner, D. M.

AU - Tatishvili, G.

AU - Ge, J. Y.

AU - Miller, D. H.

AU - Shipsey, I. P.J.

AU - Xin, B.

AU - Adams, G. S.

AU - Napolitano, J.

AU - Ecklund, K. M.

PY - 2012/5/29

Y1 - 2012/5/29

N2 - The first measurements of the coherence factor RKS0Kπ and the average strong-phase difference δDKS0Kπ in D0→KS0K ∓π± decays are reported. These parameters can be used to improve the determination of the unitary triangle angle γ in B-→D∼K- decays, where D∼ is either a D0 or a D̄0 meson decaying to the same final state, and also in studies of charm mixing. The measurements of the coherence factor and strong-phase difference are made using quantum-correlated, fully reconstructed D0D̄0 pairs produced in e+e- collisions at the ψ(3770) resonance. The measured values are RKS0Kπ=0. 73±0.08 and δDKS0Kπ=(8.3±15.2)° for an unrestricted kinematic region and RK*K=1.00±0.16 and δDK *K=(26.5±15.8)° for a region where the combined KS0π± invariant mass is within 100MeV/c2 of the K *(892)± mass. These results indicate a significant level of coherence in the decay. In addition, isobar models are presented for the two decays, which show the dominance of the K *(892)± resonance. The branching ratio B(D0→KS0K+π-)/B(D0→KS0K -π+) is determined to be 0.592±0.044(stat) ±0.018(syst), which is more precise than previous measurements.

AB - The first measurements of the coherence factor RKS0Kπ and the average strong-phase difference δDKS0Kπ in D0→KS0K ∓π± decays are reported. These parameters can be used to improve the determination of the unitary triangle angle γ in B-→D∼K- decays, where D∼ is either a D0 or a D̄0 meson decaying to the same final state, and also in studies of charm mixing. The measurements of the coherence factor and strong-phase difference are made using quantum-correlated, fully reconstructed D0D̄0 pairs produced in e+e- collisions at the ψ(3770) resonance. The measured values are RKS0Kπ=0. 73±0.08 and δDKS0Kπ=(8.3±15.2)° for an unrestricted kinematic region and RK*K=1.00±0.16 and δDK *K=(26.5±15.8)° for a region where the combined KS0π± invariant mass is within 100MeV/c2 of the K *(892)± mass. These results indicate a significant level of coherence in the decay. In addition, isobar models are presented for the two decays, which show the dominance of the K *(892)± resonance. The branching ratio B(D0→KS0K+π-)/B(D0→KS0K -π+) is determined to be 0.592±0.044(stat) ±0.018(syst), which is more precise than previous measurements.

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U2 - 10.1103/PhysRevD.85.092016

DO - 10.1103/PhysRevD.85.092016

M3 - Article

AN - SCOPUS:84861709967

SN - 1550-7998

VL - 85

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 9

M1 - 092016

ER -

Studies of the decays D0→KS0K^-π⁺ and D0→KS0K⁺π^-

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