Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Analysis of D+ → K - 0e+νe and D+ →π0e+νe semileptonic decays ANALYSIS of D+ → K - 0e+νe and M. ABLIKIM et al. / Belle Collaboration.
в: Physical Review D, Том 96, № 1, 012002, 24.07.2017.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Analysis of D+ → K - 0e+νe and D+ →π0e+νe semileptonic decays ANALYSIS of D+ → K - 0e+νe and M. ABLIKIM et al.
AU - The BELLE collaboration
AU - Ablikim, M.
AU - Achasov, M. N.
AU - Ahmed, S.
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 - 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, S.
AU - Chen, S. J.
AU - Chen, X.
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.
PY - 2017/7/24
Y1 - 2017/7/24
N2 - Using 2.93 fb-1 of data taken at 3.773 GeV with the BESIII detector operated at the BEPCII collider, we study the semileptonic decays D+→K̄0e+νe and D+→π0e+νe. We measure the absolute decay branching fractions B(D+→K̄0e+νe)=(8.60±0.06±0.15)×10-2 and B(D+→π0e+νe)=(3.63±0.08±0.05)×10-3, where the first uncertainties are statistical and the second systematic. We also measure the differential decay rates and study the form factors of these two decays. With the values of |Vcs| and |Vcd| from Particle Data Group fits assuming Cabibbo-Kobayashi-Maskawa (CKM) unitarity, we obtain the values of the form factors at q2=0, f+K(0)=0.725±0.004±0.012, and f+π(0)=0.622±0.012±0.003. Taking input from recent lattice QCD calculations of these form factors, we determine values of the CKM matrix elements |Vcs|=0.944±0.005±0.015±0.024 and |Vcd|=0.210±0.004±0.001±0.009, where the third uncertainties are theoretical.
AB - Using 2.93 fb-1 of data taken at 3.773 GeV with the BESIII detector operated at the BEPCII collider, we study the semileptonic decays D+→K̄0e+νe and D+→π0e+νe. We measure the absolute decay branching fractions B(D+→K̄0e+νe)=(8.60±0.06±0.15)×10-2 and B(D+→π0e+νe)=(3.63±0.08±0.05)×10-3, where the first uncertainties are statistical and the second systematic. We also measure the differential decay rates and study the form factors of these two decays. With the values of |Vcs| and |Vcd| from Particle Data Group fits assuming Cabibbo-Kobayashi-Maskawa (CKM) unitarity, we obtain the values of the form factors at q2=0, f+K(0)=0.725±0.004±0.012, and f+π(0)=0.622±0.012±0.003. Taking input from recent lattice QCD calculations of these form factors, we determine values of the CKM matrix elements |Vcs|=0.944±0.005±0.015±0.024 and |Vcd|=0.210±0.004±0.001±0.009, where the third uncertainties are theoretical.
KW - FORM-FACTORS
KW - E(+)E(-)
KW - HEAVY
UR - http://www.scopus.com/inward/record.url?scp=85027235347&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.96.012002
DO - 10.1103/PhysRevD.96.012002
M3 - Article
AN - SCOPUS:85027235347
VL - 96
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 1
M1 - 012002
ER -
ID: 9965099