@article{38df3cd9a02f4ddfa08b08e5501f50a8,
title = "Search for the weak radiative decay Λc+ → ς+γ at BESIII",
abstract = "The Cabibbo-allowed weak radiative decay Λc+→ς+γ has been searched for in a sample of Λc+Λ¯c- pairs produced in e+e- annihilations, corresponding to an integrated luminosity of 4.5 fb-1 collected with the BESIII detector at center-of-mass energies between 4.60 and 4.70 GeV. No excess of signal above background is observed, and we set an upper limit on the branching fraction of this decay to be B(Λc+→ς+γ)<4.4×10-4 at a confidence level of 90\%, which is in agreement with Standard Model expectations.",
author = "\{BESIII Collaboration\} and M. Ablikim and Achasov, \{M. N.\} and N. Kalantar-Nayestanaki and R. Kappert and M. Kavatsyuk and J. Messchendorp and V. Rodin",
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 R\&D Program of China under Contracts No. 2020YFA0406300 and No. 2020YFA0406400; National Natural Science Foundation of China (NSFC) under Contracts No. 11635010, No. 11735014, No. 11835012, No. 11935015, No. 11935016, No. 11935018, No. 11961141012, No. 12022510, No. 12025502, No. 12035009, No. 12035013, No. 12192260, No. 12192261, No. 12192262, No. 12192263, No. 12192264, No. 12192265, and No. 12005311; Guangzhou Basic and Applied Basic Research Foundation under Grant No. 202102020213; the Fundamental Research Funds for the Central Universities, Sun Yat-sen University, University of Science and Technology of China; 100 Talents Program of Sun Yat-sen University; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contract No. U1832207; the CAS Center for Excellence in Particle Physics (CCEPP); 100 Talents Program of CAS; The Institute of Nuclear and Particle Physics (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; European Union{\textquoteright}s Horizon 2020 research and innovation program under Marie Sklodowska-Curie grant agreement under Contract No. 894790; German Research Foundation DFG under Contract No. 443159800, Collaborative Research Center CRC 1044, GRK 2149; Istituto Nazionale diFisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources and Institutional Development, Research and Innovation under Contract No. B16F640076; Olle Engkvist Foundation under Contract No. 200-0605; STFC (United Kingdom); Suranaree University of Technology (SUT), Thailand Science Research and Innovation (TSRI), and National Science Research and Innovation Fund (NSRF) under Contract No. 160355; The Royal Society, United Kingdom under Contracts No. DH140054 and No. DH160214; The Swedish Research Council; and U.S. Department of Energy under Contract No. DE-FG02-05ER41374. Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society.",
year = "2023",
month = mar,
day = "8",
doi = "10.1103/PhysRevD.107.052002",
language = "English",
volume = "107",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "AMER PHYSICAL SOC",
number = "5",
}