{"paper":{"title":"First Determination of the Spin and Parity of a Charmed-Strange Baryon, $\\Xi_{c}(2970)^+$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Bozek, A. Chen, A. Garmash, A. Giri, A. Ishikawa, A. Kuzmin, A. Natochii, A. Sangal, A. Vinokurova, A. Vossen, B. Bhuyan, B. D. Yabsley, Belle Collaboration: T. J. Moon, B. G. Cheon, B. G. Fulsom, B. Golob, B. H. Kim, B. Shwartz, C. Bele\\~no, C. Hadjivasiliou, C. H. Wang, C. Kiesling, C.-L. Hsu, C. MacQueen, C. P. Shen, C. Schwanda, C. Z. Yuan, D. Cinabro, D. Dossett, D. Epifanov, D. Kotchetkov, D. Liventsev, D. M. Asner, D. Matvienko, D. Sahoo, D. \\v{C}ervenkov, D. Y. Kim, E. Prencipe, E. Solovieva, E. Wang, F. Di Capua, F. Tenchini, G. B. Mohanty, G. Bonvicini, G. De Nardo, G. Inguglia, G. Karyan, G. Pakhlova, G. Russo, G. Schnell, G. Varner, H. Aihara, H. Hayashii, H. Kichimi, H. Miyata, H. Ono, H. Park, H. Ye, I. Adachi, I. S. Lee, J. Bennett, J. Biswal, J.-G. Shiu, J. H. Yin, J. K. Ahn, J. Libby, J. Schueler, J. Wiechczynski, J. Yelton, J. Y. Lee, K. Chilikin, K. Cho, K. Hayasaka, K. H. Kang, K. Inami, K. Kinoshita, K. K. Joo, K. Kumara, K. Miyabayashi, K. Ogawa, K. Senyo, K. Sumisawa, K. Tanida, K. T. Kim, K. Trabelsi, L. Cao, L. E. Piilonen, L. K. Li, L. Li Gioi, L. Santelj, M. Bessner, M. Bra\\v{c}ko, M. Campajola, M.-C. Chang, M. E. Sevior, M. Iwasaki, M. Masuda, M. Merola, M. Nakao, M. Nayak, M. Niiyama, M. Ritter, M. Shapkin, M. Stari\\v{c}, M. Sumihama, M. Takizawa, M. T. Hedges, M. T. Prim, M. Uchida, M.-Z. Wang, N. Dash, N. Gabyshev, N. K. Nisar, N. Rout, O. Hartbrich, P. Behera, P. Chang, P. Goldenzweig, P. Kody\\v{s}, P. Kri\\v{z}an, P. Krokovny, P. Pakhlov, P. Urquijo, P. Wang, R. Ayad, R. Garg, R. Itoh, R. Kroeger, R. Kumar, R. Mizuk, R. Mussa, R. Pestotnik, R. Seidl, R. van Tonder, S. Al Said, S. Bahinipati, S. B. Yang, S. Choudhury, S. C. Lee, S. Cunliffe, S. Dubey, S. Eidelman, S. E. Vahsen, S. H. Kim, S.-H. Park, S. Jia, S.-K. Choi, S. K. Kim, S. Korpar, S. Mohanty, S. Nishida, S. Ogawa, S. Pardi, S. Patra, S. Paul, S. Sandilya, S. Uehara, S. Uno, S. Wehle, T. Aushev, T. Bilka, T. D. Kimmel, T. E. Browder, T. Ferber, T. Kawasaki, T. K. Pedlar, T. Kuhr, T. Luo, T. Matsuda, T. Mori, T. Nakano, T. Podobnik, T. Sumiyoshi, T. Uglov, T. V. Dong, U. Tamponi, V. Aulchenko, V. Babu, V. Gaur, V. Popov, V. Savinov, V. Vorobyev, V. Zhilich, V. Zhukova, V. Zhulanov, W.-S. Hou, W. Sutcliffe, W. W. Jacobs, X. Xu, Y. B. Li, Y. Choi, Y. Iwasaki, Y. Jin, Y. J. Kim, Y. Kato, Y.-K. Kim, Y. Sakai, Y. Seino, Y. Unno, Z. Dole\\v{z}al, Z. Liptak, Z. Natkaniec, Z. P. Zhang, Z. S. Stottler","submitted_at":"2020-07-29T09:28:27Z","abstract_excerpt":"We report results from a study of the spin and parity of $\\Xi_{c}(2970)^+$ using a $980~\\mathrm{fb^{-1}}$ data sample collected by the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. The decay angle distributions in the chain $\\Xi_{c}(2970)^+ \\to \\Xi_c(2645)^{0}\\pi^{+} \\to \\Xi_c^{+}\\pi^{-}\\pi^{+}$ are analyzed to determine the spin of this charmed-strange baryon. The angular distributions strongly favor the $\\Xi_{c}(2970)^+$ spin $J =1/2$ over $3/2$ or $5/2$, under an assumption that the lowest partial wave dominates in the decay. We also measure the ratio of $\\Xi_{c}(2970)"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.14700","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2007.14700/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}