Journal article

Search for baryon and lepton number violating decays D →pℓ

S Maity, R Garg, S Bahinipati, V Bhardwaj, H Aihara, S Al Said, DM Asner, H Atmacan, T Aushev, R Ayad, V Babu, S Banerjee, M Bauer, J Bennett, M Bessner, D Biswas, A Bobrov, D Bodrov, G Bonvicini, J Borah Show all

Physical Review D | AMER PHYSICAL SOC | Published : 2024

Abstract

We search for the baryon and lepton number violating charm decays, D→pℓ, where D is either a D0 or a D¯0 and ℓ is a muon or an electron, using a data sample of 921 fb-1 collected by the Belle detector at the KEKB asymmetric energy e+e- collider. In the absence of significant signals, we set upper limits on the branching fractions in the range (5-8)×10-7 at a 90% confidence level, depending on the decay mode.

University of Melbourne Researchers

Grants

Awarded by Ministry of Education


Funding Acknowledgements

This work, based on data collected using the Belle detector, which was operated until June 2010, was supported by the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council including Grants No. DP210101900, No. DP210102831, No. DE220100462, No. LE210100098, and No. LE230100085; Austrian Federal Ministry of Education, Science and Research (FWF) and FWF Austrian Science FundNo. P 31361-N36; NationalKeyR&DProgram of China under Contract No. 2022YFA1601903, National Natural Science Foundation of China and research Grants No. 11575017, No. 11761141009, No. 11705209, No. 11975076, No. 12135005, No. 12150004, No. 12161141008, and No. 12175041, and Shandong Provincial Natural Science Foundation Project No. ZR2022JQ02; the Czech Science Foundation Grant No. 22-18469S; Horizon 2020 ERC Advanced Grant No. 884719 and ERC Starting Grant No. 947006 "InterLeptons" (European Union); the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Atomic Energy (Project Identification No. RTI 4002), the Department of Science and Technology of India, and the UPES (India) SEED finding Programs No. UPES/R&D-SEED-INFRA/17052023/01 and No. UPES/R&D-SOE/20062022/06; the Istituto Nazionale di Fisica Nucleare of Italy; National Research Foundation (NRF) of Korea Grants No. 2016R1D1A1B02012900, No. 2018R1A2B3003643, No. 2018R1A6A1A06024970, No. RS202200197659, No. 2019R1I1A3A01058933, No. 2021R1A6A1A03043957, No. 2021R1F1A1060423, No. 2021R1F1A1064008, and No. 2022R1A2C1003993; Radiation Science Research Institute, Foreign Large-size Research Facility Application Supporting project, the Global Science Experimental Data Hub Center of the Korea Institute of Science and Technology Information and Korea Institute of Science and Technology Information/GLObal RIng network for Advanced Application Development; the Polish Ministry of Science and Higher Education and the National Science Center; the Ministry of Science and Higher Education of the Russian Federation, Agreement No. 14.W03.31.0026, and the HSE University Basic Research Program, Moscow; University of Tabuk research Grants No. S-1440-0321, No. S-0256-1438, and No. S-0280-1439 (Saudi Arabia); the Slovenian Research Agency Grants No. J1-9124 and No. P1-0135; Ikerbasque, Basque Foundation for Science, and the State Agency for Research of the SpanishMinistry of Science and Innovation through Grant No. PID2022-136510NB-C33 (Spain); the Swiss National Science Foundation; the Ministry of Education and the National Science and Technology Council of Taiwan; and the United States Department of Energy and the National Science Foundation. These acknowledgments are not to be interpreted as an endorsement of any statement made by any of our institutes, funding agencies, governments, or their representatives. We thank the KEKB group for the excellent operation of the accelerator; the KEK cryogenics group for the efficient operation of the solenoid; and the KEK computer group and the Pacific Northwest National Laboratory (PNNL) Environmental Molecular Sciences Laboratory (EMSL) computing group for strong computing support, and the National Institute of Informatics, and Science Information NETwork 6 (SINET6) for valuable network support.