First measurement of Φ3 with a model-independent Dalitz plot analysis of B± → DK± D → K0π+π- decay

Belle Collaboration

doi:10.1103/PhysRevD.85.112014

First measurement of Φ₃ with a model-independent Dalitz plot analysis of B^± → DK^± D → K⁰π⁺π^- decay

Belle Collaboration

Department of Physics

Research output: Contribution to journal › Article › peer-review

61 Citations (Scopus)

Abstract

We present the first measurement of the angle Φ₃ of the unitarity triangle using a model-independent Dalitz plot analysis of B^± → DK^±, D → K₀ ^S π⁺π^- decays. The method uses, as input, measurements of the strong phase of the D → K₀ ^S π⁺π^- amplitude from the CLEO Collaboration. The result is based on the full data set of 772 × 10⁶ BB¯ pairs collected by the Belle experiment at the γ (4S) resonance. We obtain Φ₃ = (77.3_-14.9 ^+15.1 ± 4.1 ± 4.3)° and the suppressed amplitude ratio r_B = 0.145 ± 0.030 ± 0.010 ± 0.011. Here the first error is statistical, the second is the experimental systematic uncertainty, and the third is the error due to the precision of the strong-phase parameters obtained by CLEO.

Original language	English
Article number	112014
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	85
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.85.112014
Publication status	Published - 2012 Jun 26

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.85.112014

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@article{185fc0283bd04bdbb3ac91d69d077033,

title = "First measurement of Φ3 with a model-independent Dalitz plot analysis of B± → DK± D → K0π+π- decay",

abstract = "We present the first measurement of the angle Φ3 of the unitarity triangle using a model-independent Dalitz plot analysis of B± → DK±, D → K0 S π+π- decays. The method uses, as input, measurements of the strong phase of the D → K0 S π+π- amplitude from the CLEO Collaboration. The result is based on the full data set of 772 × 106 BB¯ pairs collected by the Belle experiment at the γ (4S) resonance. We obtain Φ3 = (77.3-14.9 +15.1 ± 4.1 ± 4.3)° and the suppressed amplitude ratio rB = 0.145 ± 0.030 ± 0.010 ± 0.011. Here the first error is statistical, the second is the experimental systematic uncertainty, and the third is the error due to the precision of the strong-phase parameters obtained by CLEO.",

author = "{Belle Collaboration} and H. Aihara and K. Arinstein and Asner, {D. M.} and V. Aulchenko and T. Aushev and Bakich, {A. M.} and K. Belous and B. Bhuyan and M. Bischofberger and A. Bondar and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and Chang, {M. C.} and P. Chang and Cheon, {B. G.} and K. Chilikin and R. Chistov and K. Cho and Y. Choi and J. Dalseno and Z. Dole{\v z}al and A. Drutskoy and S. Eidelman and D. Epifanov and Fast, {J. E.} and M. Feindt and V. Gaur and N. Gabyshev and A. Garmash and Goh, {Y. M.} and B. Golob and J. Haba and H. Hayashii and Y. Horii and Y. Hoshi and Hou, {W. S.} and Hsiung, {Y. B.} and Hyun, {H. J.} and T. Iijima and A. Ishikawa and R. Itoh and M. Iwabuchi and T. Julius and Kang, {J. H.} and T. Kawasaki and C. Kiesling and Kim, {H. J.} and Kim, {H. O.}",

year = "2012",

month = jun,

day = "26",

doi = "10.1103/PhysRevD.85.112014",

language = "English",

volume = "85",

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

issn = "1550-7998",

number = "11",

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TY - JOUR

T1 - First measurement of Φ3 with a model-independent Dalitz plot analysis of B± → DK± D → K0π+π- decay

AU - Belle Collaboration

AU - Aihara, H.

AU - Arinstein, K.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Belous, K.

AU - Bhuyan, B.

AU - Bischofberger, M.

AU - Bondar, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chang, P.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, K.

AU - Choi, Y.

AU - Dalseno, J.

AU - Doležal, Z.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fast, J. E.

AU - Feindt, M.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Goh, Y. M.

AU - Golob, B.

AU - Haba, J.

AU - Hayashii, H.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Julius, T.

AU - Kang, J. H.

AU - Kawasaki, T.

AU - Kiesling, C.

AU - Kim, H. J.

AU - Kim, H. O.

PY - 2012/6/26

Y1 - 2012/6/26

N2 - We present the first measurement of the angle Φ3 of the unitarity triangle using a model-independent Dalitz plot analysis of B± → DK±, D → K0 S π+π- decays. The method uses, as input, measurements of the strong phase of the D → K0 S π+π- amplitude from the CLEO Collaboration. The result is based on the full data set of 772 × 106 BB¯ pairs collected by the Belle experiment at the γ (4S) resonance. We obtain Φ3 = (77.3-14.9 +15.1 ± 4.1 ± 4.3)° and the suppressed amplitude ratio rB = 0.145 ± 0.030 ± 0.010 ± 0.011. Here the first error is statistical, the second is the experimental systematic uncertainty, and the third is the error due to the precision of the strong-phase parameters obtained by CLEO.

AB - We present the first measurement of the angle Φ3 of the unitarity triangle using a model-independent Dalitz plot analysis of B± → DK±, D → K0 S π+π- decays. The method uses, as input, measurements of the strong phase of the D → K0 S π+π- amplitude from the CLEO Collaboration. The result is based on the full data set of 772 × 106 BB¯ pairs collected by the Belle experiment at the γ (4S) resonance. We obtain Φ3 = (77.3-14.9 +15.1 ± 4.1 ± 4.3)° and the suppressed amplitude ratio rB = 0.145 ± 0.030 ± 0.010 ± 0.011. Here the first error is statistical, the second is the experimental systematic uncertainty, and the third is the error due to the precision of the strong-phase parameters obtained by CLEO.

UR - http://www.scopus.com/inward/record.url?scp=84937644677&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84937644677&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.85.112014

DO - 10.1103/PhysRevD.85.112014

M3 - Article

SN - 1550-7998

VL - 85

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

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

IS - 11

M1 - 112014

ER -

First measurement of Φ₃ with a model-independent Dalitz plot analysis of B^± → DK^± D → K⁰π⁺π^- decay

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