Study of D+ →k-π+e+νe

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Ablikim, M, Achasov, MN, Ai, XC, Albayrak, O, Albrecht, M, Ambrose, DJ, Amoroso, A, An, FF, An, Q, Bai, JZ et al (show 90 more authors) , Ferroli, RB, Ban, Y, Bennett, DW, Bennett, JV, Bertani, M, Bettoni, D, Bian, JM, Bianchi, F, Boger, E, 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, SC, Chen, SJ, Chen, X, Chen, XR, Chen, YB, Cheng, HP, Chu, XK, Cibinetto, G, Dai, HL, Dai, JP, Dbeyssi, A, Dedovich, D, Deng, ZY, Denig, A, Denysenko, I, Destefanis, M, De Mori, F, Ding, Y, Dong, C, Dong, J, Dong, LY, Dong, MY, Du, SX, Duan, PF, Fan, JZ, Fang, J, Fang, SS, Fang, X, Fang, Y, Fava, L, Feldbauer, F, Felici, G, Feng, CQ, Fioravanti, E, Fritsch, M, Fu, CD, Gao, Q, Gao, XL, Gao, XY, Gao, Y, Gao, Z, Garzia, I, Goetzen, K, Gong, WX, Gradl, W, Greco, M, Gu, MH, Gu, YT, Guan, YH, Guo, AQ, Guo, LB, Guo, RP, Guo, Y, Guo, YP, Haddadi, Z, Hafner, A, Han, S, Hao, XQ, Harris, FA, He, KL, He, XQ, Held, T, Heng, YK, Hou, ZL, Hu, C and Hu, HM (2016) Study of D+ →k-π+e+νe Physical Review D, 94 (3). 032006-. ISSN 2470-0010, 2470-0029

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Abstract

We present an analysis of the decay D+→K-π+e+νe based on data collected by the BESIII experiment at the ψ(3770) resonance. Using a nearly background-free sample of 18262 events, we measure the branching fraction B(D+→K-π+e+νe)=(3.77±0.03±0.08)%. For 0.8<mKπ<1.0 GeV/c2, the partial branching fraction is B(D+→K-π+e+νe)[0.8,1.0]=(3.39±0.03±0.08)%. A partial wave analysis shows that the dominant K̄∗(892)0 component is accompanied by an S-wave contribution accounting for (6.05±0.22±0.18)% of the total rate and that other components are negligible. The parameters of the K̄∗(892)0 resonance and of the form factors based on the spectroscopic pole dominance predictions are also measured. We also present a measurement of the K̄∗(892)0 helicity basis form factors in a model-independent way.

Item Type:	Article
Additional Information:	29 pages plus author list + cover pages (45 pages total), 8 figures, 4 tables, published in Physical Review D, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2015-08/
Uncontrolled Keywords:	hep-ex, hep-ex
Depositing User:	Symplectic Admin
Date Deposited:	27 Mar 2017 10:23
Last Modified:	22 Apr 2026 10:57
DOI:	10.1103/PhysRevD.94.032001
Open Access URL:	http://journals.aps.org/prd/pdf/10.1103/PhysRevD.9...
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3006651
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