@article{c0e9ee324a104d72b773429d7d8e12d1,
title = "Search for the semi-leptonic decays Λc+→Λπ+π−e+νe and Λc+→pKS0π−e+νe",
abstract = "We search for the semi-leptonic decays Λc+→Λπ+π−e+νe and Λc+→pKS0π−e+νe in a sample of 4.5 fb−1 of e+e− annihilation data collected in the center-of-mass energy region between 4.600 GeV and 4.699 GeV by the BESIII detector at the BEPCII. No significant signals are observed, and the upper limits on the decay branching fractions are set to be B(Λc+→Λπ+π−e+νe)<3.9×10−4 and B(Λc+→pKS0π−e+νe)<3.3×10−4 at the 90% confidence level, respectively.",
keywords = "BESIII, Branching fractions, Semi-leptonic decays, Λ baryon",
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 Nos. 2020YFA0406400 , 2020YFA0406300 ; National Natural Science Foundation of China (NSFC) under Contracts Nos. 11635010 , 11675275 , 11735014 , 11835012 , 11935015 , 11935016 , 11935018 , 11961141012 , 12022510 , 12025502 , 12035009 , 12035013 , 12061131003 , 12175321 , 12192260 , 12192261 , 12192262 , 12192263 , 12192264 , 12192265 , 12221005 ; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contract No. U1832207 , U1932101 ; State Key Laboratory of Nuclear Physics and Technology , PKU under Grant No. NPT2020KFY04 ; CAS Key Research Program of Frontier Sciences under Contracts Nos. QYZDJ-SSW-SLH003 , QYZDJ-SSW-SLH040 ; 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's Horizon 2020 research and innovation programme under Marie Sklodowska-Curie grant agreement under Contract No. 894790 ; German Research Foundation DFG under Contracts Nos. 443159800 , 455635585 , Collaborative Research Center CRC 1044 , FOR5327 , GRK 2149; Istituto Nazionale di Fisica Nucleare , Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470 ; National Research Foundation of Korea under Contract No. NRF-2022R1A2C1092335 ; National Science and Technology fund ; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation under Contract No. B16F640076 ; Polish National Science Centre under Contract No. 2019/35/O/ST2/02907 ; 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 , UK under Contract No. DH160214 ; The Swedish Research Council ; U.S. Department of Energy under Contract No. DE-FG02-05ER41374 . 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 Nos. 2020YFA0406400, 2020YFA0406300; National Natural Science Foundation of China (NSFC) under Contracts Nos. 11635010, 11675275, 11735014, 11835012, 11935015, 11935016, 11935018, 11961141012, 12022510, 12025502, 12035009, 12035013, 12061131003, 12175321, 12192260, 12192261, 12192262, 12192263, 12192264, 12192265, 12221005; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contract No. U1832207, U1932101; State Key Laboratory of Nuclear Physics and Technology, PKU under Grant No. NPT2020KFY04; CAS Key Research Program of Frontier Sciences under Contracts Nos. QYZDJ-SSW-SLH003, QYZDJ-SSW-SLH040; 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's Horizon 2020 research and innovation programme under Marie Sklodowska-Curie grant agreement under Contract No. 894790; German Research Foundation DFG under Contracts Nos. 443159800, 455635585, Collaborative Research Center CRC 1044, FOR5327, GRK 2149; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Research Foundation of Korea under Contract No. NRF-2022R1A2C1092335; National Science and Technology fund; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation under Contract No. B16F640076; Polish National Science Centre under Contract No. 2019/35/O/ST2/02907; 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, UK under Contract No. DH160214; The Swedish Research Council; U.S. Department of Energy under Contract No. DE-FG02-05ER41374. Publisher Copyright: {\textcopyright} 2023 The Author(s)",
year = "2023",
month = aug,
day = "10",
doi = "10.1016/j.physletb.2023.137993",
language = "English",
volume = "843",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "ELSEVIER SCIENCE BV",
}