Precision measurement of the D∗0 decay branching fractions

BESIII Collaboration

doi:10.1103/PhysRevD.91.031101

Precision measurement of the D∗0 decay branching fractions

BESIII Collaboration

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

Using 482 pb-1 of data taken at s=4.009 GeV, we measure the branching fractions of the decays of D∗0 into D0π0 and D0γ to be B(D∗0→D0π0)=(65.5±0.8±0.5)% and B(D∗0→D0γ)=(34.5±0.8±0.5)%, respectively, by assuming that the D∗0 decays only into these two modes. The ratio of the two branching fractions is B(D∗0→D0π0)/B(D∗0→D0γ)=1.90±0.07±0.05, which is independent of the assumption made above. The first uncertainties are statistical and the second ones systematic. The precision is improved by a factor of 3 compared to the present world average values.

Lingua originale	Inglese
Numero di articolo	031101
Rivista	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	91
Numero di pubblicazione	3
DOI	https://doi.org/10.1103/PhysRevD.91.031101
Stato di pubblicazione	Pubblicato - 6 feb 2015
Pubblicato esternamente	Sì

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10.1103/PhysRevD.91.031101

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@article{05a717b4b8d14ae8aa0e92380eeaddbd,

title = "Precision measurement of the D∗0 decay branching fractions",

abstract = "Using 482 pb-1 of data taken at s=4.009 GeV, we measure the branching fractions of the decays of D∗0 into D0π0 and D0γ to be B(D∗0→D0π0)=(65.5±0.8±0.5)\% and B(D∗0→D0γ)=(34.5±0.8±0.5)\%, respectively, by assuming that the D∗0 decays only into these two modes. The ratio of the two branching fractions is B(D∗0→D0π0)/B(D∗0→D0γ)=1.90±0.07±0.05, which is independent of the assumption made above. The first uncertainties are statistical and the second ones systematic. The precision is improved by a factor of 3 compared to the present world average values.",

author = "\{BESIII Collaboration\} and M. Ablikim and Achasov, \{M. N.\} and Ai, \{X. C.\} and O. Albayrak and M. Albrecht and Ambrose, \{D. J.\} and A. Amoroso and An, \{F. F.\} and Q. An and Bai, \{J. Z.\} and \{Baldini Ferroli\}, R. and Y. Ban and Bennett, \{D. W.\} and Bennett, \{J. V.\} and M. Bertani and D. Bettoni and Bian, \{J. M.\} and F. Bianchi and E. Boger and O. Bondarenko 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 Chang, \{J. F.\} and G. Chelkov and G. Chen and Chen, \{H. S.\} and Chen, \{H. Y.\} and Chen, \{J. C.\} and Chen, \{M. L.\} and Chen, \{S. J.\} and X. Chen and Chen, \{X. R.\} and Chen, \{Y. B.\} and Cheng, \{H. P.\} and Chu, \{X. K.\} and G. Cibinetto and D. Cronin-Hennessy and Dai, \{H. L.\} and Dai, \{J. P.\} and A. Dbeyssi and D. Dedovich and Deng, \{Z. Y.\} and A. Denig and I. Denysenko",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = feb,

day = "6",

doi = "10.1103/PhysRevD.91.031101",

language = "English",

volume = "91",

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

issn = "1550-7998",

publisher = "American Physical Society",

number = "3",

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TY - JOUR

T1 - Precision measurement of the D∗0 decay branching fractions

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ai, X. C.

AU - Albayrak, O.

AU - Albrecht, M.

AU - Ambrose, D. J.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Baldini Ferroli, R.

AU - Ban, Y.

AU - Bennett, D. W.

AU - Bennett, J. V.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bian, J. M.

AU - Bianchi, F.

AU - Boger, E.

AU - Bondarenko, O.

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 - Chang, J. F.

AU - Chelkov, G.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, H. Y.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, X.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Cheng, H. P.

AU - Chu, X. K.

AU - Cibinetto, G.

AU - Cronin-Hennessy, D.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dbeyssi, A.

AU - Dedovich, D.

AU - Deng, Z. Y.

AU - Denig, A.

AU - Denysenko, I.

PY - 2015/2/6

Y1 - 2015/2/6

N2 - Using 482 pb-1 of data taken at s=4.009 GeV, we measure the branching fractions of the decays of D∗0 into D0π0 and D0γ to be B(D∗0→D0π0)=(65.5±0.8±0.5)% and B(D∗0→D0γ)=(34.5±0.8±0.5)%, respectively, by assuming that the D∗0 decays only into these two modes. The ratio of the two branching fractions is B(D∗0→D0π0)/B(D∗0→D0γ)=1.90±0.07±0.05, which is independent of the assumption made above. The first uncertainties are statistical and the second ones systematic. The precision is improved by a factor of 3 compared to the present world average values.

AB - Using 482 pb-1 of data taken at s=4.009 GeV, we measure the branching fractions of the decays of D∗0 into D0π0 and D0γ to be B(D∗0→D0π0)=(65.5±0.8±0.5)% and B(D∗0→D0γ)=(34.5±0.8±0.5)%, respectively, by assuming that the D∗0 decays only into these two modes. The ratio of the two branching fractions is B(D∗0→D0π0)/B(D∗0→D0γ)=1.90±0.07±0.05, which is independent of the assumption made above. The first uncertainties are statistical and the second ones systematic. The precision is improved by a factor of 3 compared to the present world average values.

UR - https://www.scopus.com/pages/publications/84979846053

U2 - 10.1103/PhysRevD.91.031101

DO - 10.1103/PhysRevD.91.031101

M3 - Article

SN - 1550-7998

VL - 91

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

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

IS - 3

M1 - 031101

ER -

Precision measurement of the D∗0 decay branching fractions

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