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

Belle Collaboration

Research output: Contribution to journalArticle

41 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 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.

Original languageEnglish
Article number112014
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume85
Issue number11
DOIs
Publication statusPublished - 2012 Jun 26

Fingerprint

plots
decay
triangles

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

@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. Bračko 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. Doležal 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 = "6",
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",

}

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

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 85, No. 11, 112014, 26.06.2012.

Research output: Contribution to journalArticle

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

AN - SCOPUS:84937644677

VL - 85

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

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

SN - 1550-7998

IS - 11

M1 - 112014

ER -