Search for the decay D0 →π0ν ν ¯

BESIII Collaboration

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

We present the first experimental search for the rare charm decay D0→π0νν¯. It is based on an e+e- collision sample consisting of 10.6×106 pairs of D0D¯0 mesons collected by the BESIII detector at s=3.773 GeV, corresponding to an integrated luminosity of 2.93 fb-1. A data-driven method is used to ensure the reliability of the background modeling. No significant D0→π0νν¯ signal is observed in data and an upper limit of the branching fraction is set to be 2.1×10-4 at the 90% confidence level. This is the first experimental constraint on charmed-hadron decays into dineutrino final states.

Original languageEnglish (US)
Article numberL071102
JournalPhysical Review D
Volume105
Issue number7
DOIs
StatePublished - Apr 1 2022

Bibliographical note

Funding Information:
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 Research and Development Program of China under Grants. No.?2020YFA0406400 and No.?2020YFA0406300; National Natural Science Foundation of China (NSFC) under Contracts No.?11625523, No.?11635010, No.?11735014, No.?11805086, No.?11822506, No.?11835012, No.?11935015, No.?11935016, No.?11935018, and No.?11961141012; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS PIFI program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No.?U1732263 and No.?U1832207; CAS Key Research Program of Frontier Sciences under Contracts No.?QYZDJ-SSW-SLH003 and No.?QYZDJ-SSW-SLH040; 100 Talents Program of CAS; the Fundamental Research Funds for the Central Universities; The Institute of Nuclear and Particle Physics (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No.?758462; European Union Horizon 2020 research and innovation programme under Contract No.?Marie Sklodowska-Curie grant agreement No.?894790; German Research Foundation DFG under Contracts No.?443159800, Collaborative Research Center CRC 1044, Grant No.?FOR 2359 and No.?GRK 2149; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No.?DPT2006K-120470; National Science and Technology fund; Olle Engkvist Foundation under Contract No.?200-0605; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No.?2016.0157; The Royal Society, UK under Contracts No.?DH140054 and No.?DH160214; The Swedish Research Council; U.S. Department of Energy under Contracts No.?DE-FG02-05ER41374 and No.?DE-SC-0012069.

Funding Information:
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 Research and Development Program of China under Grants. No. 2020YFA0406400 and No. 2020YFA0406300; National Natural Science Foundation of China (NSFC) under Contracts No. 11625523, No. 11635010, No. 11735014, No. 11805086, No. 11822506, No. 11835012, No. 11935015, No. 11935016, No. 11935018, and No. 11961141012; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS PIFI program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1732263 and No. U1832207; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; the Fundamental Research Funds for the Central Universities; The Institute of Nuclear and Particle Physics (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; European Union Horizon 2020 research and innovation programme under Contract No. Marie Sklodowska-Curie grant agreement No. 894790; German Research Foundation DFG under Contracts No. 443159800, Collaborative Research Center CRC 1044, Grant No. FOR 2359 and No. GRK 2149; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; Olle Engkvist Foundation under Contract No. 200-0605; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; The Royal Society, UK under Contracts No. DH140054 and No. DH160214; The Swedish Research Council; U.S. Department of Energy under Contracts No. DE-FG02-05ER41374 and No. DE-SC-0012069.

Publisher Copyright:
© 2022 authors.

Fingerprint

Dive into the research topics of 'Search for the decay D0 →π0ν ν ¯'. Together they form a unique fingerprint.

Cite this