Based on e+e- collision data sample corresponding to an integrated luminosity of 2.93 fb-1 taken at a center-of-mass energy of 3.773 GeV by the BESIII detector, we report the measurements of the absolute branching fractions of D0→K+K-π0π0, D0→KS0KS0π+π-, D0→KS0K-π+π0, D0→KS0K+π-π0, D+→K+K-π+π0, D+→KS0K+π0π0, D+→KS0K-π+π+, D+→KS0K+π+π-, and D+→KS0KS0π+π0. The decays D0→K+K-π0π0, D0→KS0K-π+π0, D0→KS0K+π-π0, D+→KS0KS0π+π0, and D+→KS0K+π0π0 are observed for the first time. The branching fractions of the decays D0→KS0KS0π+π-, D+→K+K-π+π0, D+→KS0K-π+π+, and D+→KS0K+π+π- are measured with improved precision compared to the world-average values.
Bibliographical noteFunding Information:
The authors are thankful for valuable discussions with Prof. Fu-sheng Yu. The BESIII collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key Basic Research Program of China under Contract No. 2015CB856700; National Natural Science Foundation of China (NSFC) under Contracts No. 11775230, No. 11475123, No. 11625523, No. 11635010, No. 11735014, No. 11822506, No. 11835012, No. 11935015, No. 11935016, No. 11935018, No. 11961141012; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1532101, No. U1932102, No. U1732263, No. U1832207; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003, No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; German Research Foundation DFG under Contracts Nos. Collaborative Research Center CRC 1044, FOR 2359; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; The Royal Society, UK under Contracts No. DH140054, No. DH160214; The Swedish Research Council; U.S. Department of Energy under Contracts No. DE-FG02-05ER41374, No. DE-SC-0012069.