Standard

First Measurement of the Form Factors in Ds+ →k0e+νe and Ds+ →k∗0e+νe Decays. / BESIII Collaboration.

In: Physical Review Letters, Vol. 122, No. 6, 061801, 15.02.2019.

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

Harvard

BESIII Collaboration 2019, 'First Measurement of the Form Factors in Ds+ →k0e+νe and Ds+ →k∗0e+νe Decays', Physical Review Letters, vol. 122, no. 6, 061801. https://doi.org/10.1103/PhysRevLett.122.061801

APA

BESIII Collaboration (2019). First Measurement of the Form Factors in Ds+ →k0e+νe and Ds+ →k∗0e+νe Decays. Physical Review Letters, 122(6), [061801]. https://doi.org/10.1103/PhysRevLett.122.061801

Vancouver

BESIII Collaboration. First Measurement of the Form Factors in Ds+ →k0e+νe and Ds+ →k∗0e+νe Decays. Physical Review Letters. 2019 Feb 15;122(6):061801. doi: 10.1103/PhysRevLett.122.061801

Author

BESIII Collaboration. / First Measurement of the Form Factors in Ds+ →k0e+νe and Ds+ →k∗0e+νe Decays. In: Physical Review Letters. 2019 ; Vol. 122, No. 6.

BibTeX

@article{d732523c38c3411aba84f06176dada0c,
title = "First Measurement of the Form Factors in Ds+ →k0e+νe and Ds+ →k∗0e+νe Decays",
abstract = "We report on new measurements of Cabibbo-suppressed semileptonic Ds+ decays using 3.19 fb-1 of e+e-annihilation data sample collected at a center-of-mass energy of 4.178 GeV with the BESIII detector at the BEPCII collider. Our results include branching fractions B(Ds+→K0e+νe)=[3.25±0.38(stat)±0.16(syst)]×10-3 and B(Ds+→K∗0e+νe)=[2.37±0.26(stat)±0.20(syst)]×10-3, which are much improved relative to previous measurements, and the first measurements of the hadronic form-factor parameters for these decays. For Ds+→K0e+νe, we obtain f+(0)=0.720±0.084(stat)±0.013(syst), and for Ds+→K∗0e+νe, we find form-factor ratios rV=V(0)/A1(0)=1.67±0.34(stat)±0.16(syst) and r2=A2(0)/A1(0)=0.77±0.28(stat)±0.07(syst).",
keywords = "UB-VERTICAL-BAR, SEMILEPTONIC-B, HEAVY",
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.",
year = "2019",
month = feb,
day = "15",
doi = "10.1103/PhysRevLett.122.061801",
language = "English",
volume = "122",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "6",

}

RIS

TY - JOUR

T1 - First Measurement of the Form Factors in Ds+ →k0e+νe and Ds+ →k∗0e+νe Decays

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.

PY - 2019/2/15

Y1 - 2019/2/15

N2 - We report on new measurements of Cabibbo-suppressed semileptonic Ds+ decays using 3.19 fb-1 of e+e-annihilation data sample collected at a center-of-mass energy of 4.178 GeV with the BESIII detector at the BEPCII collider. Our results include branching fractions B(Ds+→K0e+νe)=[3.25±0.38(stat)±0.16(syst)]×10-3 and B(Ds+→K∗0e+νe)=[2.37±0.26(stat)±0.20(syst)]×10-3, which are much improved relative to previous measurements, and the first measurements of the hadronic form-factor parameters for these decays. For Ds+→K0e+νe, we obtain f+(0)=0.720±0.084(stat)±0.013(syst), and for Ds+→K∗0e+νe, we find form-factor ratios rV=V(0)/A1(0)=1.67±0.34(stat)±0.16(syst) and r2=A2(0)/A1(0)=0.77±0.28(stat)±0.07(syst).

AB - We report on new measurements of Cabibbo-suppressed semileptonic Ds+ decays using 3.19 fb-1 of e+e-annihilation data sample collected at a center-of-mass energy of 4.178 GeV with the BESIII detector at the BEPCII collider. Our results include branching fractions B(Ds+→K0e+νe)=[3.25±0.38(stat)±0.16(syst)]×10-3 and B(Ds+→K∗0e+νe)=[2.37±0.26(stat)±0.20(syst)]×10-3, which are much improved relative to previous measurements, and the first measurements of the hadronic form-factor parameters for these decays. For Ds+→K0e+νe, we obtain f+(0)=0.720±0.084(stat)±0.013(syst), and for Ds+→K∗0e+νe, we find form-factor ratios rV=V(0)/A1(0)=1.67±0.34(stat)±0.16(syst) and r2=A2(0)/A1(0)=0.77±0.28(stat)±0.07(syst).

KW - UB-VERTICAL-BAR

KW - SEMILEPTONIC-B

KW - HEAVY

UR - http://www.scopus.com/inward/record.url?scp=85061552964&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.122.061801

DO - 10.1103/PhysRevLett.122.061801

M3 - Article

C2 - 30822077

AN - SCOPUS:85061552964

VL - 122

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 6

M1 - 061801

ER -

ID: 18538248