Precision measurement of the D∗0 decay branching fractions

M. Ablikim; M. N. Achasov; X. C. Ai; O. Albayrak; M. Albrecht; D. J. Ambrose; A. Amoroso; F. F. An; Q. An; J. Z. Bai; R. Baldini Ferroli; Y. Ban; D. W. Bennett; J. V. Bennett; M. Bertani; D. Bettoni; J. M. Bian; F. Bianchi; E. Boger; O. Bondarenko; I. Boyko; R. A. Briere; H. Cai; X. Cai; O. Cakir; A. Calcaterra; G. F. Cao; S. A. Cetin; J. F. Chang; G. Chelkov; G. Chen; H. S. Chen; H. Y. Chen; J. C. Chen; M. L. Chen; S. J. Chen; X. Chen; X. R. Chen; Y. B. Chen; H. P. Cheng; X. K. Chu; G. Cibinetto; D. Cronin-Hennessy; H. L. Dai; J. P. Dai; A. Dbeyssi; D. Dedovich; Z. Y. Deng; H. Muramatsu; R. Poling; BESIII Collaboration

doi:10.1103/PhysRevD.91.031101

Precision measurement of the D∗0 decay branching fractions

M. Ablikim, M. N. Achasov, X. C. Ai, O. Albayrak, M. Albrecht, D. J. Ambrose, A. Amoroso, F. F. An, Q. An, J. Z. Bai, R. Baldini Ferroli, Y. Ban, D. W. Bennett, J. V. Bennett, M. Bertani, D. Bettoni, J. M. Bian, F. Bianchi, E. Boger, O. BondarenkoI. Boyko, R. A. Briere, H. Cai, X. Cai, O. Cakir, A. Calcaterra, G. F. Cao, S. A. Cetin, J. F. Chang, G. Chelkov, G. Chen, H. S. Chen, H. Y. Chen, J. C. Chen, M. L. Chen, S. J. Chen, X. Chen, X. R. Chen, Y. B. Chen, H. P. Cheng, X. K. Chu, G. Cibinetto, D. Cronin-Hennessy, H. L. Dai, J. P. Dai, A. Dbeyssi, D. Dedovich, Z. Y. Deng, H. Muramatsu, R. Poling, BESIII Collaboration

Physics and Astronomy (Twin Cities)

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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.

Original language	English (US)
Article number	031101
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	91
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.91.031101
State	Published - Feb 6 2015

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© 2015 American Physical Society.

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10.1103/PhysRevD.91.031101

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Ablikim, M., Achasov, M. N., Ai, X. C., Albayrak, O., Albrecht, M., Ambrose, D. J., Amoroso, A., An, F. F., An, Q., Bai, J. Z., Baldini Ferroli, R., Ban, Y., Bennett, D. W., Bennett, J. V., Bertani, M., Bettoni, D., Bian, J. M., Bianchi, F., Boger, E., ... BESIII Collaboration (2015). Precision measurement of the D∗0 decay branching fractions. Physical Review D - Particles, Fields, Gravitation and Cosmology, 91(3), Article 031101. https://doi.org/10.1103/PhysRevD.91.031101

Ablikim, M, Achasov, MN, Ai, XC, Albayrak, O, Albrecht, M, Ambrose, DJ, Amoroso, A, An, FF, An, Q, Bai, JZ, Baldini Ferroli, R, Ban, Y, Bennett, DW, Bennett, JV, Bertani, M, Bettoni, D, Bian, JM, Bianchi, F, Boger, E, Bondarenko, O, Boyko, I, Briere, RA, Cai, H, Cai, X, Cakir, O, Calcaterra, A, Cao, GF, Cetin, SA, Chang, JF, Chelkov, G, Chen, G, Chen, HS, Chen, HY, Chen, JC, Chen, ML, Chen, SJ, Chen, X, Chen, XR, Chen, YB, Cheng, HP, Chu, XK, Cibinetto, G, Cronin-Hennessy, D, Dai, HL, Dai, JP, Dbeyssi, A, Dedovich, D, Deng, ZY, Muramatsu, H, Poling, R & BESIII Collaboration 2015, 'Precision measurement of the D∗0 decay branching fractions', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 91, no. 3, 031101. https://doi.org/10.1103/PhysRevD.91.031101

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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 = "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 H. Muramatsu and R. Poling and {BESIII Collaboration}",

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

year = "2015",

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day = "6",

doi = "10.1103/PhysRevD.91.031101",

language = "English (US)",

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

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 - Muramatsu, H.

AU - Poling, R.

AU - BESIII Collaboration

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.

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U2 - 10.1103/PhysRevD.91.031101

DO - 10.1103/PhysRevD.91.031101

M3 - Article

AN - SCOPUS:84979846053

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

Abstract

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