First measurement of the CKM angle ϕ 3 withS B ± → D(KS0 π + π  − π 0) K ± decays

The Belle Collaboration

doi:10.1007/JHEP10(2019)178

First measurement of the CKM angle ϕ ₃ withS B ^± → D(KS0 π ⁺ π ⁻ π ⁰) K ^± decays

The Belle Collaboration

Department of Physics

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

9 Citations (Scopus)

Abstract

We present the first model-independent measurement of the CKM unitarity triangle angle ϕ₃ using B^±→ D(KS0π⁺π⁻π⁰) K^± decays, where D indicates either a D⁰ or D¯ ⁰ meson. Measurements of the strong-phase difference of the D →KS0π⁺π⁻π⁰ amplitude obtained from CLEO-c data are used as input. This analysis is based on the full Belle data set of 772 × 10⁶BB¯ events collected at the Υ(4S) resonance. We obtain ϕ₃ = (5.7−8.8+10.2±3.5±5.7)^° and the suppressed amplitude ratio r_B = 0.323±0.147±0.023±0.051. Here the first uncertainty is statistical, the second is the experimental systematic, and the third is due to the precision of the strong-phase parameters measured from CLEO-c data. The 95% confidence interval on ϕ₃ is (−29.7, 109.5)^°, which is consistent with the current world average. [Figure not available: see fulltext.]

Original language	English
Article number	178
Journal	Journal of High Energy Physics
Volume	2019
Issue number	10
DOIs	https://doi.org/10.1007/JHEP10(2019)178
Publication status	Published - 2019 Oct 1

Bibliographical note

Publisher Copyright:
© 2019, The Author(s).

Keywords

B physics
CKM angle gamma
CP violation
Flavor physics
e+-e- Experiments

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1007/JHEP10(2019)178

Cite this

@article{1c39b9a0f1794634ad83ff0312722f38,

title = "First measurement of the CKM angle ϕ 3 withS B ± → D(KS0 π + π − π 0) K ± decays",

abstract = "We present the first model-independent measurement of the CKM unitarity triangle angle ϕ3 using B±→ D(KS0π+π−π0) K± decays, where D indicates either a D0 or D¯ 0 meson. Measurements of the strong-phase difference of the D →KS0π+π−π0 amplitude obtained from CLEO-c data are used as input. This analysis is based on the full Belle data set of 772 × 106BB¯ events collected at the Υ(4S) resonance. We obtain ϕ3 = (5.7−8.8+10.2±3.5±5.7)° and the suppressed amplitude ratio rB = 0.323±0.147±0.023±0.051. Here the first uncertainty is statistical, the second is the experimental systematic, and the third is due to the precision of the strong-phase parameters measured from CLEO-c data. The 95% confidence interval on ϕ3 is (−29.7, 109.5)°, which is consistent with the current world average. [Figure not available: see fulltext.]",

keywords = "B physics, CKM angle gamma, CP violation, Flavor physics, e+-e- Experiments",

author = "{The Belle Collaboration} and Resmi, {P. K.} and J. Libby and K. Trabelsi and I. Adachi and H. Aihara and {Al Said}, S. and Asner, {D. M.} and V. Aulchenko and T. Aushev and V. Babu and I. Badhrees and Bakich, {A. M.} and C. Bele{\~n}o and J. Bennett and V. Bhardwaj and B. Bhuyan and T. Bilka and J. Biswal and A. Bozek and M. Bra{\v c}ko and M. Campajola and D. {\v C}ervenkov and A. Chen and Cheon, {B. G.} and Cho, {H. E.} and K. Cho and Y. Choi and S. Choudhury and D. Cinabro and S. Cunliffe and N. Dash and {De Nardo}, G. and {Di Capua}, F. and {Di Carlo}, S. and Z. Dole{\v z}al and Dong, {T. V.} and S. Eidelman and D. Epifanov and Fast, {J. E.} and T. Ferber and Fulsom, {B. G.} and R. Garg and V. Gaur and N. Gabyshev and A. Garmash and A. Giri and P. Goldenzweig and B. Golob and Y. Guan and E. Won",

note = "Publisher Copyright: {\textcopyright} 2019, The Author(s).",

year = "2019",

month = oct,

day = "1",

doi = "10.1007/JHEP10(2019)178",

language = "English",

volume = "2019",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "10",

}

TY - JOUR

T1 - First measurement of the CKM angle ϕ 3 withS B ± → D(KS0 π + π − π 0) K ± decays

AU - The Belle Collaboration

AU - Resmi, P. K.

AU - Libby, J.

AU - Trabelsi, K.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Babu, V.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Beleño, C.

AU - Bennett, J.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bilka, T.

AU - Biswal, J.

AU - Bozek, A.

AU - Bračko, M.

AU - Campajola, M.

AU - Červenkov, D.

AU - Chen, A.

AU - Cheon, B. G.

AU - Cho, H. E.

AU - Cho, K.

AU - Choi, Y.

AU - Choudhury, S.

AU - Cinabro, D.

AU - Cunliffe, S.

AU - Dash, N.

AU - De Nardo, G.

AU - Di Capua, F.

AU - Di Carlo, S.

AU - Doležal, Z.

AU - Dong, T. V.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fast, J. E.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Garg, R.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Giri, A.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Guan, Y.

AU - Won, E.

PY - 2019/10/1

Y1 - 2019/10/1

N2 - We present the first model-independent measurement of the CKM unitarity triangle angle ϕ3 using B±→ D(KS0π+π−π0) K± decays, where D indicates either a D0 or D¯ 0 meson. Measurements of the strong-phase difference of the D →KS0π+π−π0 amplitude obtained from CLEO-c data are used as input. This analysis is based on the full Belle data set of 772 × 106BB¯ events collected at the Υ(4S) resonance. We obtain ϕ3 = (5.7−8.8+10.2±3.5±5.7)° and the suppressed amplitude ratio rB = 0.323±0.147±0.023±0.051. Here the first uncertainty is statistical, the second is the experimental systematic, and the third is due to the precision of the strong-phase parameters measured from CLEO-c data. The 95% confidence interval on ϕ3 is (−29.7, 109.5)°, which is consistent with the current world average. [Figure not available: see fulltext.]

AB - We present the first model-independent measurement of the CKM unitarity triangle angle ϕ3 using B±→ D(KS0π+π−π0) K± decays, where D indicates either a D0 or D¯ 0 meson. Measurements of the strong-phase difference of the D →KS0π+π−π0 amplitude obtained from CLEO-c data are used as input. This analysis is based on the full Belle data set of 772 × 106BB¯ events collected at the Υ(4S) resonance. We obtain ϕ3 = (5.7−8.8+10.2±3.5±5.7)° and the suppressed amplitude ratio rB = 0.323±0.147±0.023±0.051. Here the first uncertainty is statistical, the second is the experimental systematic, and the third is due to the precision of the strong-phase parameters measured from CLEO-c data. The 95% confidence interval on ϕ3 is (−29.7, 109.5)°, which is consistent with the current world average. [Figure not available: see fulltext.]

KW - B physics

KW - CKM angle gamma

KW - CP violation

KW - Flavor physics

KW - e+-e- Experiments

UR - http://www.scopus.com/inward/record.url?scp=85074084430&partnerID=8YFLogxK

U2 - 10.1007/JHEP10(2019)178

DO - 10.1007/JHEP10(2019)178

M3 - Article

AN - SCOPUS:85074084430

SN - 1126-6708

VL - 2019

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 10

M1 - 178

ER -