Study of electromagnetic decays of orbitally excited Ξ c baryons

Yelton, J.; Adachi, I.; Ahn, J. K.; Aihara, H.; Al Said, S.; Asner, D. M.; Aushev, T.; Ayad, R.; Babu, V.; Bahinipati, S.; Behera, P.; Beleño, C.; Bennett, J.; Bhardwaj, V.; Bhuyan, B.; Bilka, T.; Biswal, J.; Bonvicini, G.; Bozek, A.; Bračko, M.; Browder, T. E.; Campajola, M.; Červenkov, D.; Chang, M. -C.; Chang, P.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, K.; Cho, S. -J.; Choi, S. -K.; Choi, Y.; Choudhury, S.; Cinabro, D.; Cunliffe, S.; De Nardo, G.; Di Capua, F.; Doležal, Z.; Dong, T. V.; Eidelman, S.; Epifanov, D.; Ferber, T.; Fulsom, B. G.; Garg, R.; Gaur, V.; Gabyshev, N.; Garmash, A.; Giri, A.; Goldenzweig, P.; Hadjivasiliou, C.; Hartbrich, O.; Hayasaka, K.; Hayashii, H.; Hedges, M. T.; Hernandez Villanueva, M.; Hou, W. -S.; Hsu, C. -L.; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W. W.; Jia, S.; Jin, Y.; Joo, C. W.; Joo, K. K.; Kaliyar, A. B.; Kang, K. H.; Karyan, G.; Kato, Y.; Kawasaki, T.; Kichimi, H.; Kiesling, C.; Kim, B. H.; Kim, D. Y.; Kim, S. H.; Kim, Y. -K.; Kinoshita, K.; Kodyš, P.; Korpar, S.; Kotchetkov, D.; Križan, P.; Kroeger, R.; Krokovny, P.; Kulasiri, R.; Kumar, R.; Kumara, K.; Kuzmin, A.; Kwon, Y. -J.; Lalwani, K.; Lange, J. S.; Lee, S. C.; Lewis, P.; Li, L. K.; Li, Y. B.; Li Gioi, L.; Libby, J.; Lieret, K.; Liptak, Z.; Liventsev, D.; Luo, T.; MacQueen, C.; Masuda, M.; Matsuda, T.; Matvienko, D.; McNeil, J. T.; Merola, M.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Mohanty, S.; Moon, T. J.; Mori, T.; Mrvar, M.; Mussa, R.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Natochii, A.; Nayak, M.; Nisar, N. K.; Nishida, S.; Ogawa, K.; Ogawa, S.; Ono, H.; Onuki, Y.; Oskin, P.; Pakhlov, P.; Pakhlova, G.; Pardi, S.; Park, H.; Park, S. -H.; Patra, S.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Podobnik, T.; Popov, V.; Prencipe, E.; Prim, M. T.; Ritter, M.; Rostomyan, A.; Rout, N.; Russo, G.; Sahoo, D.; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Savinov, V.; Schnell, G.; Schueler, J.; Schwanda, C.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shebalin, V.; Shen, C. P.; Shiu, J. -G.; Shwartz, B.; Singh, J. B.; Sokolov, A.; Solovieva, E.; Starič, M.; Stottler, Z. S.; Strube, J. F.; Sumihama, M.; Sumisawa, K.; Sumiyoshi, T.; Sutcliffe, W.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Vahsen, S. E.; Van Tonder, R.; Varner, G.; Vinokurova, A.; Vorobyev, V.; Waheed, E.; Wang, C. H.; Wang, E.; Wang, M. -Z.; Wang, P.; Wang, X. L.; Watanabe, M.; Won, E.; Xu, X.; Yabsley, B. D.; Yan, W.; Yang, S. B.; Ye, H.; Yin, J. H.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.

doi:10.1103/PhysRevD.102.071103

Title: Study of electromagnetic decays of orbitally excited $Ξ_{c}$ baryons

Journal Article · Mon Oct 26 00:00:00 EDT 2020 · Physical Review. D.

DOI:https://doi.org/10.1103/PhysRevD.102.071103· OSTI ID:1686253

; Adachi, I.; Ahn, J. K.; Aihara, H.; Al Said, S.; Asner, D. M.; Aushev, T.; Ayad, R.; Babu, V.; Bahinipati, S.; Behera, P.; Beleño, C.; Bennett, J.; Bhardwaj, V.; Bhuyan, B.; Bilka, T.; Biswal, J.; Bonvicini, G.; Bozek, A.; Bračko, M. more »

Using 980 fb-1 of data collected with the Belle detector operating at the KEKB asymmetric-energy eþe- collider, we report a study of the electromagnetic decays of excited charmed baryons ?cð2790Þ and ?cð2815Þ. A clear signal (8.6 standard deviations) is observed for ?cð2815Þ0 ? ?0 c?, and we measure: B½?cð2815Þ0 ? ?0 c? B½?cð2815Þ0 ? ?cð2645Þþp- ? ?0 cpþp- ¼ 0.41 0.05 0.03. We also present evidence (3.8 standard deviations) for the similar decay of the ?cð2790Þ0 and measure: B½?cð2790Þ0 ? ?0 c? B½?cð2790Þ0 ? ?0þ c p- ? ?þ c ?p- ¼ 0.13 0.03 0.02. The first quoted uncertainties are statistical and the second systematic. We find no hint of the analogous decays of the ?cð2815Þþ and ?cð2790Þþ baryons and set upper limits at the 90% confidence level of: B½?cð2815Þþ ? ?þ c ? B½?cð2815Þþ ? ?cð2645Þ0pþ ? ?þ c p-pþ < 0.09, and B½?cð2790Þþ ? ?þ c ? B½?cð2790Þþ ? ?00 c pþ ? ?0 c?pþ < 0.06. Approximate values of the partial widths of the decays are extracted, which can be used to discriminate between models of the underlying quark structure of these excited states.

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Research Organization:: Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Univ. of Hawaii, Honolulu, HI (United States). High Energy Physics Group

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); Ministry of Education, Culture, Sports, Science, and Technology of Japan (MEXT)

Contributing Organization:: Belle Collaboration

Grant/Contract Number:: SC0009973; SC0012704; AC05-76RL01830; SC0010504

OSTI ID:: 1686253

Alternate ID(s):: OSTI ID: 1735702; OSTI ID: 1756659; OSTI ID: 1773411; OSTI ID: 1779746

Report Number(s):: BNL-220682-2020-JAAM; PNNL-SA-160780; PRVDAQ; 071103

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Vol. 102 Journal Issue: 7; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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