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arxiv: 2310.07412 · v2 · pith:3YCJ6N2Hnew · submitted 2023-10-11 · ✦ hep-ex

Search for baryon and lepton number violating decays boldsymbol{D rightarrow pell}

Belle Collaboration: S. Maity , R. Garg , S. Bahinipati , V. Bhardwaj , H. Aihara , S. Al Said , DM Asner , H. Atmacan
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T. Aushev R. Ayad V. Babu Sw. Banerjee M. Bauer J. Bennett M. Bessner D. Biswas A. Bobrov D. Bodrov G. Bonvicini J. Borah M. Bra\v{c}ko P. Branchini A. Budano M. Campajola D. \v{C}ervenkov M.-C. Chang P. Chang K. Chilikin H. E. Cho K. Cho S.-J. Cho S.-K. Choi Y. Choi S. Choudhury S. Das N. Dash G. De Pietro R. Dhamija F. Di Capua J. Dingfelder TV Dong P. Ecker D. Epifanov T. Ferber BG Fulsom V. Gaur A. Giri P. Goldenzweig E. Graziani T. Gu K. Gudkova C. Hadjivasiliou K. Hayasaka H. Hayashii S. Hazra W.-S. Hou C.-L. Hsu K. Inami N. Ipsita A. Ishikawa R. Itoh M. Iwasaki WW Jacobs Y. Jin D. Kalita C. Kiesling CH Kim DY Kim K. Kinoshita P. Kody\v{s } A. Korobov S. Korpar P. Kri\v{z}an P. Krokovny M. Kumar R. Kumar K. Kumara A. Kuzmin Y.-J. Kwon T. Lam SC Lee D. Levit LK Li Y. Li YB Li L. Li Gioi K. Lieret D. Liventsev M. Masuda T. Matsuda D. Matvienko SK Maurya F. Meier M. Merola F. Metzner R. Mizuk G. B. Mohanty R. Mussa M. Nakao D. Narwal A. Natochii L. Nayak S. Nishida S. Ogawa H. Ono P. Oskin G. Pakhlova S. Pardi H. Park J. Park S.-H. Park A. Passeri S. Patra S. Paul TK Pedlar R. Pestotnik LE Piilonen T. Podobnik S. Prell E. Prencipe MT Prim N. Rout G. Russo Y. Sakai S. Sandilya L. Santelj. V. Savinov G. Schnell C. Schwanda Y. Seino K. Senyo W. Shan C. Sharma J.-G. Shiu E. Solovieva M. Stari\v{c} M. Sumihama M. Takizawa K. Tanida F. Tenchini K. Trabelsi M. Uchida T. Uglov Y. Unno S. Uno P. Urquijo Y. Usov K.E. Varvell E. Wang M.-Z. Wang S. Watanuki J. Wiechczynski X. Xu B. D. Yabsley W. Yan S. B. Yang J.H.Yin L.Yuan Z.P.Zhang V. Zhilich V. Zhukova
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classification ✦ hep-ex
keywords baryondecaysleptonnumberrightarrowsearchviolatingabsence
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We search for the baryon and lepton number violating charm decays, $D \rightarrow p\ell$, where $D$ is either a $D^0$ or a $\overline{D}^0$ and $\ell$ is a muon or an electron, using a data sample of $921\,\mathrm{fb}^{-1}$ 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 $(5 - 8) \times 10^{-7}$ at a 90\% confidence level, depending on the decay mode.

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