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Liventsev, D. M. Asner, D. Matvienko, D. Narwal, D. Sahoo, D. Wang, D. Y. Kim, E. Graziani, E.-J. Jang, E. Kovalenko, E. Solovieva, E. Waheed, E. Wang, E. Won, F. Di Capua, F. Meier, F. Simon, F. Tenchini, G. Bonvicini, G. De Nardo, G. De Pietro, G. Pakhlova, G. Russo, G. Schnell, G. Varner, H. Aihara, H. Atmacan, H. E. Cho, H. Hayashii, H. Kichimi, H. Ono, H. Ye, I. Adachi, J. Borah, J.-G. Shiu, J. H. Yin, J. Kahn, J. Li, J. Libby, J. Schueler, J. X. Cui, K. Belous, K. Chilikin, K. Cho, K. Hayasaka, K. H. Kang, K. Inami, K. Kinoshita, K. K. Joo, K. Kumara, K. Miyabayashi, K. Nishimura, K. Ogawa, K. Senyo, K. Sumisawa, K. Tanida, K. Trabelsi, K. Uno, L. E. Piilonen, L. K. Li, L. Li Gioi, L. Nayak, M. Bessner, M. Bracko, M. Campajola, M.-C. Chang, M. E. Sevior, M. Iwasaki, M. Kumar, M. Laurenza, M. Masuda, M. Merola, M. Nakao, M. Rohrken, M. Shapkin, M. Staric, M. Sumihama, M. Takizawa, M. T. Prim, M. Uchida, M.-Z. Wang, N. Dash, N. Gabyshev, N. K. Nisar, N. Rout, P. Behera, P. Branchini, P. Chang, P. Goldenzweig, P. Kodys, P. Krizan, P. Krokovny, P. Oskin, P. Pakhlov, P. Urquijo, R. Ayad, R. Dhamija, R. Garg, R. Kroeger, R. Kumar, R. Mizuk, R. Mussa, R. Pestotnik, R. van Tonder, S. Al Said, S. Choudhury, S. C. Lee, S. Cunliffe, S. Das, S. E. Vahsen, S.-H. Park, S.-J. Cho, S. Jia, S.-K. Choi, S. K. Maurya, S. Korpar, S. Nishida, S. Ogawa, S. Pardi, S. Patra, S. Sandilya, S. Stanic, S. Uno, S. Watanuki, T. Aushev, T. Bilka, T. E. Browder, T. Ferber, T. Gu, T. Hara, T. Kawasaki, T. Konno, T. K. Pedlar, T. Lam, T. Matsuda, T. Pang, T. Podobnik, T. Sanuki, T. Sumiyoshi, T. V. Dong, U. Tamponi, V. Babu, V. Bhardwaj, V. Chekelian, V. Gaur, V. Popov, V. Savinov, V. Shebalin, V. Zhilich, V. Zhukova, W.-S. Hou, W. Sutcliffe, W. W. Jacobs, W. Yan, X. Xu, Y. Choi, Y. Iwasaki, Y. Jin, Y.-J. Kwon, Y. Kato, Y.-K. Kim, Y. Li, Y. Seino, Y. Unno, Y. Yusa, Y. Zhai, Z. Dolezal, Z. Natkaniec, Z. S. Stottler","submitted_at":"2021-12-28T19:25:54Z","abstract_excerpt":"We present the first measurement of the branching fraction of the singly Cabibbo-suppressed (SCS) decay $\\Lambda_c^+ \\to p \\eta'$ with $\\eta' \\to \\eta\\pi^+\\pi^-$, using a data sample corresponding to an integrated luminosity of 981 $\\rm fb^{-1}$, collected by the Belle detector at the KEKB $e^{+}$$e^{-}$ asymmetric-energy collider. A significant $\\Lambda_c^+$ signal is observed for the first time with a signal significance of 5.4$\\sigma$. The relative branching fraction with respect to the normalization mode $\\Lambda_c^+ \\to pK^-\\pi^+$ is measured to be\n  \\begin{equation*}\n  \\frac{{\\cal B}(\\La"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2112.14276","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2021-12-28T19:25:54Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"5d42dc07e6f67d5138ba7da2a10ffbdee294b9e7554348c0e42ba4445796837f","abstract_canon_sha256":"cacf3a09513efee8d8c4020d211bd81c1bceea5082c69f68ae1f28d3cb4e483c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:05:37.919725Z","signature_b64":"xz2SJobEX5rGp7xEedTzQcwZ0Jfk8AyY4MHukg3G6sbPrtReJU+KmJxEz1mE3UwuiWCjMe5WbZvxW9f7PuDRAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9becd8e46286fcfa644f969a9c68c27cb731eaf00fb93eaa84a373ca38dbeb27","last_reissued_at":"2026-07-05T04:05:37.919297Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:05:37.919297Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"First Measurement of the $\\Lambda_c^+ \\to p \\eta'$ decay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-ex","authors_text":"A. B. Kaliyar, A. Bozek, A. Budano, A. Chen, A. Giri, A. Ishikawa, A. J. Schwartz, A. Korobov, A. Martini, A. Natochii, A. Rostomyan, A. Sangal, A. Vinokurova, B. Bhuyan, B. D. Yabsley, Belle Collaboration: S. X. Li, B. G. Cheon, B. G. Fulsom, B. Golob, B. Shwartz, C. H. Kim, C. Kiesling, C. P. Shen, C. Schwanda, C. Sharma, D. Bodrov, D. Cervenkov, D. Cinabro, D. Epifanov, D. Ferlewicz, D. Liventsev, D. M. Asner, D. Matvienko, D. Narwal, D. Sahoo, D. Wang, D. Y. Kim, E. Graziani, E.-J. Jang, E. Kovalenko, E. Solovieva, E. Waheed, E. Wang, E. Won, F. Di Capua, F. Meier, F. Simon, F. Tenchini, G. Bonvicini, G. De Nardo, G. De Pietro, G. Pakhlova, G. Russo, G. Schnell, G. Varner, H. Aihara, H. Atmacan, H. E. Cho, H. Hayashii, H. Kichimi, H. Ono, H. Ye, I. Adachi, J. Borah, J.-G. Shiu, J. H. Yin, J. Kahn, J. Li, J. Libby, J. Schueler, J. X. Cui, K. Belous, K. Chilikin, K. Cho, K. Hayasaka, K. H. Kang, K. Inami, K. Kinoshita, K. K. Joo, K. Kumara, K. Miyabayashi, K. Nishimura, K. Ogawa, K. 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