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Observation of D+ →f0 (500)e+νe and Improved Measurements of D →ρe+νe. / The BESIII Collaboration.

в: Physical Review Letters, Том 122, № 6, 062001, 13.02.2019.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

Harvard

The BESIII Collaboration 2019, 'Observation of D+ →f0 (500)e+νe and Improved Measurements of D →ρe+νe', Physical Review Letters, Том. 122, № 6, 062001. https://doi.org/10.1103/PhysRevLett.122.062001

APA

Vancouver

The BESIII Collaboration. Observation of D+ →f0 (500)e+νe and Improved Measurements of D →ρe+νe. Physical Review Letters. 2019 февр. 13;122(6):062001. doi: 10.1103/PhysRevLett.122.062001

Author

The BESIII Collaboration. / Observation of D+ →f0 (500)e+νe and Improved Measurements of D →ρe+νe. в: Physical Review Letters. 2019 ; Том 122, № 6.

BibTeX

@article{a246283f6d9141538cfe404ead8fa259,
title = "Observation of D+ →f0 (500)e+νe and Improved Measurements of D →ρe+νe",
abstract = "Using a data sample corresponding to an integrated luminosity of 2.93 fb-1 recorded by the BESIII detector at a center-of-mass energy of 3.773 GeV, we present an analysis of the decays D0→π-π0e+νe and D+→π-π+e+νe. By performing a partial wave analysis, the π+π-S-wave contribution to D+→π-π+e+νe is observed to be (25.7±1.6±1.1)% with a statistical significance greater than 10σ, besides the dominant P-wave contribution. This is the first observation of the S-wave contribution. We measure the branching fractions B(D0→ρ-e+νe)=(1.445±0.058±0.039)×10-3, B(D+→ρ0e+νe)=(1.860±0.070±0.061)×10-3, and B(D+→f0(500)e+νe,f0(500)→π+π-)=(6.30±0.43±0.32)×10-4. An upper limit of B(D+→f0(980)e+νe,f0(980)→π+π-)<2.8×10-5 is set at the 90% confidence level. We also obtain the hadronic form factor ratios of D→ρe+νe at q2=0 assuming the single-pole dominance parametrization: rV={[V(0)]/[A1(0)]}=1.695±0.083±0.051, r2={[A2(0)]/[A1(0)]}=0.845±0.056±0.039.",
keywords = "CROSS-SECTION, SIGMA, E(+)E(-), DECAYS",
author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and S. Ahmed and M. Albrecht and M. Alekseev and A. Amoroso and An, {F. F.} and Q. An and Y. Bai and O. Bakina and {Baldini Ferroli}, R. and Y. Ban and K. Begzsuren and Bennett, {D. W.} and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and E. Boger and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and A. Calcaterra and Cao, {G. F.} and Cetin, {S. A.} and J. Chai and Chang, {J. F.} and Chang, {W. L.} 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 W. Cheng and Chu, {X. K.} and G. Cibinetto and F. Cossio and Dai, {H. L.} and Dai, {J. P.} and A. Dbeyssi and D. Dedovich and Deng, {Z. Y.} and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",
note = "Publisher Copyright: {\textcopyright} 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"} Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP . ",
year = "2019",
month = feb,
day = "13",
doi = "10.1103/PhysRevLett.122.062001",
language = "English",
volume = "122",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "6",

}

RIS

TY - JOUR

T1 - Observation of D+ →f0 (500)e+νe and Improved Measurements of D →ρe+νe

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Alekseev, M.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, Y.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Ban, Y.

AU - Begzsuren, K.

AU - Bennett, D. W.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Boger, E.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cetin, S. A.

AU - Chai, J.

AU - Chang, J. F.

AU - Chang, W. L.

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 - Cheng, W.

AU - Chu, X. K.

AU - Cibinetto, G.

AU - Cossio, F.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dbeyssi, A.

AU - Dedovich, D.

AU - Deng, Z. Y.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

N1 - Publisher Copyright: © 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/" Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP .

PY - 2019/2/13

Y1 - 2019/2/13

N2 - Using a data sample corresponding to an integrated luminosity of 2.93 fb-1 recorded by the BESIII detector at a center-of-mass energy of 3.773 GeV, we present an analysis of the decays D0→π-π0e+νe and D+→π-π+e+νe. By performing a partial wave analysis, the π+π-S-wave contribution to D+→π-π+e+νe is observed to be (25.7±1.6±1.1)% with a statistical significance greater than 10σ, besides the dominant P-wave contribution. This is the first observation of the S-wave contribution. We measure the branching fractions B(D0→ρ-e+νe)=(1.445±0.058±0.039)×10-3, B(D+→ρ0e+νe)=(1.860±0.070±0.061)×10-3, and B(D+→f0(500)e+νe,f0(500)→π+π-)=(6.30±0.43±0.32)×10-4. An upper limit of B(D+→f0(980)e+νe,f0(980)→π+π-)<2.8×10-5 is set at the 90% confidence level. We also obtain the hadronic form factor ratios of D→ρe+νe at q2=0 assuming the single-pole dominance parametrization: rV={[V(0)]/[A1(0)]}=1.695±0.083±0.051, r2={[A2(0)]/[A1(0)]}=0.845±0.056±0.039.

AB - Using a data sample corresponding to an integrated luminosity of 2.93 fb-1 recorded by the BESIII detector at a center-of-mass energy of 3.773 GeV, we present an analysis of the decays D0→π-π0e+νe and D+→π-π+e+νe. By performing a partial wave analysis, the π+π-S-wave contribution to D+→π-π+e+νe is observed to be (25.7±1.6±1.1)% with a statistical significance greater than 10σ, besides the dominant P-wave contribution. This is the first observation of the S-wave contribution. We measure the branching fractions B(D0→ρ-e+νe)=(1.445±0.058±0.039)×10-3, B(D+→ρ0e+νe)=(1.860±0.070±0.061)×10-3, and B(D+→f0(500)e+νe,f0(500)→π+π-)=(6.30±0.43±0.32)×10-4. An upper limit of B(D+→f0(980)e+νe,f0(980)→π+π-)<2.8×10-5 is set at the 90% confidence level. We also obtain the hadronic form factor ratios of D→ρe+νe at q2=0 assuming the single-pole dominance parametrization: rV={[V(0)]/[A1(0)]}=1.695±0.083±0.051, r2={[A2(0)]/[A1(0)]}=0.845±0.056±0.039.

KW - CROSS-SECTION

KW - SIGMA

KW - E(+)E(-)

KW - DECAYS

UR - http://www.scopus.com/inward/record.url?scp=85061554568&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.122.062001

DO - 10.1103/PhysRevLett.122.062001

M3 - Article

C2 - 30822062

AN - SCOPUS:85061554568

VL - 122

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 6

M1 - 062001

ER -

ID: 18539674