Measurement of singly Cabibbo-suppressed decays D0 → π0π0π0, π0π0η π0ηη and ηηη

BESIII Collaboration

doi:10.1016/j.physletb.2018.04.017

Measurement of singly Cabibbo-suppressed decays D⁰ → π⁰π⁰π⁰, π⁰π⁰η π⁰ηη and ηηη

BESIII Collaboration

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article

Abstract

Using a data sample of e⁺e⁻ collision data corresponding to an integrated luminosity of 2.93 fb⁻¹ collected with the BESIII detector at a center-of-mass energy of s=3.773GeV, we search for the singly Cabibbo-suppressed decays D⁰→π⁰π⁰π⁰, π⁰π⁰η π⁰ηη and ηηη using the double tag method. The absolute branching fractions are measured to be B(D⁰→π⁰π⁰π⁰)=(2.0±0.4±0.3)×10⁻⁴, B(D⁰→π⁰π⁰η)=(3.8±1.1±0.7)×10⁻⁴ and B(D⁰→π⁰ηη)=(7.3±1.6±1.5)×10⁻⁴ with the statistical significances of 4.8σ 3.8σ and 5.5σ respectively, where the first uncertainties are statistical and the second ones systematic. No significant signal of D⁰→ηηη is found, and the upper limit on its decay branching fraction is set to be B(D⁰→ηηη)<1.3×10⁻⁴ at the 90% confidence level.

Original language	English (US)
Pages (from-to)	368-375
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	781
DOIs	https://doi.org/10.1016/j.physletb.2018.04.017
State	Published - Jun 10 2018

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Keywords

BESIII
Branching fractions
D meson
Hadronic decays

Cite this

BESIII Collaboration (2018). Measurement of singly Cabibbo-suppressed decays D⁰ → π⁰π⁰π⁰, π⁰π⁰η π⁰ηη and ηηη. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 781, 368-375. https://doi.org/10.1016/j.physletb.2018.04.017

Measurement of singly Cabibbo-suppressed decays D⁰ → π⁰π⁰π⁰, π⁰π⁰η π⁰ηη and ηηη. / BESIII Collaboration.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 781, 10.06.2018, p. 368-375.

Research output: Contribution to journal › Article

BESIII Collaboration 2018, 'Measurement of singly Cabibbo-suppressed decays D⁰ → π⁰π⁰π⁰, π⁰π⁰η π⁰ηη and ηηη', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 781, pp. 368-375. https://doi.org/10.1016/j.physletb.2018.04.017

BESIII Collaboration. Measurement of singly Cabibbo-suppressed decays D⁰ → π⁰π⁰π⁰, π⁰π⁰η π⁰ηη and ηηη. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2018 Jun 10;781:368-375. https://doi.org/10.1016/j.physletb.2018.04.017

BESIII Collaboration. / Measurement of singly Cabibbo-suppressed decays D⁰ → π⁰π⁰π⁰, π⁰π⁰η π⁰ηη and ηηη. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2018 ; Vol. 781. pp. 368-375.

@article{643a32a60f9e4ca7b0844d6617dc1424,

title = "Measurement of singly Cabibbo-suppressed decays D0 → π0π0π0, π0π0η π0ηη and ηηη",

abstract = "Using a data sample of e+e− collision data corresponding to an integrated luminosity of 2.93 fb−1 collected with the BESIII detector at a center-of-mass energy of s=3.773GeV, we search for the singly Cabibbo-suppressed decays D0→π0π0π0, π0π0η π0ηη and ηηη using the double tag method. The absolute branching fractions are measured to be B(D0→π0π0π0)=(2.0±0.4±0.3)×10−4, B(D0→π0π0η)=(3.8±1.1±0.7)×10−4 and B(D0→π0ηη)=(7.3±1.6±1.5)×10−4 with the statistical significances of 4.8σ 3.8σ and 5.5σ respectively, where the first uncertainties are statistical and the second ones systematic. No significant signal of D0→ηηη is found, and the upper limit on its decay branching fraction is set to be B(D0→ηηη)<1.3×10−4 at the 90{\%} confidence level.",

keywords = "BESIII, Branching fractions, D meson, Hadronic decays",

author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and S. Ahmed and M. Albrecht and A. Amoroso and An, {F. F.} and Q. An and Bai, {J. Z.} and Y. Bai and O. Bakina and {Baldini Ferroli}, R. and Y. Ban and Bennett, {D. W.} and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni and Bian, {J. M.} and F. Bianchi and E. Boger and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and O. Cakir and A. Calcaterra and Cao, {G. F.} and Cetin, {S. A.} and J. Chai and Chang, {J. F.} and G. Chelkov and G. Chen and Chen, {H. S.} and Chen, {J. C.} and Chen, {M. L.} and Chen, {P. L.} and Chen, {S. J.} and Chen, {X. R.} and Chen, {Y. B.} and Chu, {X. K.} and G. Cibinetto and Dai, {H. L.} and Dai, {J. P.} and A. Dbeyssi and D. Dedovich and Deng, {Z. Y.} and A. Denig and I. Denysenko and M. Destefanis and {De Mori}, F.",

year = "2018",

month = "6",

day = "10",

doi = "10.1016/j.physletb.2018.04.017",

language = "English (US)",

volume = "781",

pages = "368--375",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

}

TY - JOUR

T1 - Measurement of singly Cabibbo-suppressed decays D0 → π0π0π0, π0π0η π0ηη and ηηη

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Bai, Y.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Ban, Y.

AU - Bennett, D. W.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bian, J. M.

AU - Bianchi, F.

AU - Boger, E.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Cakir, O.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cetin, S. A.

AU - Chai, J.

AU - Chang, J. F.

AU - Chelkov, G.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, P. L.

AU - Chen, S. J.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Chu, X. K.

AU - Cibinetto, G.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dbeyssi, A.

AU - Dedovich, D.

AU - Deng, Z. Y.

AU - Denig, A.

AU - Denysenko, I.

AU - Destefanis, M.

AU - De Mori, F.

PY - 2018/6/10

Y1 - 2018/6/10

N2 - Using a data sample of e+e− collision data corresponding to an integrated luminosity of 2.93 fb−1 collected with the BESIII detector at a center-of-mass energy of s=3.773GeV, we search for the singly Cabibbo-suppressed decays D0→π0π0π0, π0π0η π0ηη and ηηη using the double tag method. The absolute branching fractions are measured to be B(D0→π0π0π0)=(2.0±0.4±0.3)×10−4, B(D0→π0π0η)=(3.8±1.1±0.7)×10−4 and B(D0→π0ηη)=(7.3±1.6±1.5)×10−4 with the statistical significances of 4.8σ 3.8σ and 5.5σ respectively, where the first uncertainties are statistical and the second ones systematic. No significant signal of D0→ηηη is found, and the upper limit on its decay branching fraction is set to be B(D0→ηηη)<1.3×10−4 at the 90% confidence level.

AB - Using a data sample of e+e− collision data corresponding to an integrated luminosity of 2.93 fb−1 collected with the BESIII detector at a center-of-mass energy of s=3.773GeV, we search for the singly Cabibbo-suppressed decays D0→π0π0π0, π0π0η π0ηη and ηηη using the double tag method. The absolute branching fractions are measured to be B(D0→π0π0π0)=(2.0±0.4±0.3)×10−4, B(D0→π0π0η)=(3.8±1.1±0.7)×10−4 and B(D0→π0ηη)=(7.3±1.6±1.5)×10−4 with the statistical significances of 4.8σ 3.8σ and 5.5σ respectively, where the first uncertainties are statistical and the second ones systematic. No significant signal of D0→ηηη is found, and the upper limit on its decay branching fraction is set to be B(D0→ηηη)<1.3×10−4 at the 90% confidence level.

KW - BESIII

KW - Branching fractions

KW - D meson

KW - Hadronic decays

UR - http://www.scopus.com/inward/record.url?scp=85045934996&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85045934996&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2018.04.017

DO - 10.1016/j.physletb.2018.04.017

M3 - Article

AN - SCOPUS:85045934996

VL - 781

SP - 368

EP - 375

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

ER -

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