Study of electromagnetic decays of orbitally excited Ξc baryons

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

doi:10.1103/PhysRevD.102.071103

Study of electromagnetic decays of orbitally excited Ξc baryons

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

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

Chair of Physics I

University of Florida
KEK and Graduate University for Advanced Studies (Sokendai)
High Energy Accelerator Research Organization (KEK)
Korea University
University of Tokyo
Faculty of Sciences, King Abdulaziz University
University of Tabuk
Brookhaven National Laboratory
National Research University Higher School of Economics
Deutsches Elektronen-Synchrotron (DESY)
Indian Institute of Technology Bhubaneswar
Indian Institute of Technology Madras
Georg August Universität Göttingen
University of Mississippi
Indian Institute of Science Education and Research Mohali
Indian Institute of Technology Guwahati
Charles University
Jožef Stefan Institute
Wayne State University
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
University of Maribor
University of Hawaii
INFN Sezione di Napoli
Università di Napoli Federico II
Fu Jen Catholic University
National Taiwan University
Max-Planck-Institut für Physik
National Central University
Hanyang University
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Korea Institute of Science and Technology Information
Yonsei University
Gyeongsang National University
Sungkyunkwan University
Indian Institute of Technology Hyderabad
Fudan University
Budker Institute of Nuclear Physics (SB RAS)
Novosibirsk State University
Pacific Northwest National Laboratory
Panjab University
Virginia Polytechnic Institute and State University
Humanoid Technologies Lab (H2T)
Niigata University
Nara Women's University
University of Sydney
Nagoya University
Österreichische Akademie der Wissenschaften
Osaka Prefecture University
Indiana University Bloomington
Chonnam National University
Tata Institute of Fundamental Research, Mumbai
Kyungpook National University
Kitasato University
Seoul National University
Soongsil University
Univ. of Cincinnati
Univ. of Ljubljana
Kennesaw State University
Punjab Agricultural University
Malaviya National Institute of Technology Jaipur
Justus-Liebig-Universität Gießen
University of Bonn
Beijing University
University of Munich
University of Melbourne
Osaka University
University of Miyazaki
Utkal University
INFN Sez. di Torino
Tel Aviv University
Toho University
Nippon Dental University
National Research Nuclear University MEPhI
Luther College, Decorah
Forschungszentrum Jülich (FZJ)
Tohoku University
University of Pittsburgh
Biodonostia Health Research Institute-CIBERNED-UPV-EHU
Basque Foundation for Science
Yamagata University
Institute for High Energy Physics (IHEP)
Gifu University
Tokyo Metropolitan University
Showa Pharmaceutical University
Japan Atomic Energy Agency
Tokyo Institute of Technology
National United University
Institute of High Energy Physics Chinese Academy of Science
Soochow University
University of Science and Technology of China

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Using 980 fb-1 of data collected with the Belle detector operating at the KEKB asymmetric-energy e+e- collider, we report a study of the electromagnetic decays of excited charmed baryons Ξc(2790) and Ξc(2815). A clear signal (8.6 standard deviations) is observed for Ξc(2815)0→Ξc0γ, and we measure: B[Ξc(2815)0 → Ξc0γ]B[Ξc(2815)0 → Ξc(2645)+π- → Ξc0π+π-]=0.41±0.05±0.03. We also present evidence (3.8 standard deviations) for the similar decay of the Ξc(2790)0 and measure: B[Ξc(2790)0 → Ξc0γ]B[Ξc(2790)0 → Ξc′+π- → Ξc+γπ-]=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 Ξc(2815)+ and Ξc(2790)+ baryons and set upper limits at the 90% confidence level of: B[Ξc(2815)+ → Ξc+γ]B[Ξc(2815)+ → Ξc(2645)0π+ → Ξc+π-π+]<0.09, and B[Ξc(2790)+ → Ξc+γ]B[Ξc(2790)+ → Ξc′0π+ → Ξc0γπ+]<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.

Original language	English
Article number	071103
Journal	Physical Review D
Volume	102
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.102.071103
State	Published - 26 Oct 2020

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10.1103/PhysRevD.102.071103

Cite this

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., ... Zhulanov, V. (2020). Study of electromagnetic decays of orbitally excited Ξc baryons. Physical Review D, 102(7), Article 071103. https://doi.org/10.1103/PhysRevD.102.071103

@article{8d48ccf744384a0183ea49c095f688ab,

title = "Study of electromagnetic decays of orbitally excited Ξc baryons",

abstract = "Using 980 fb-1 of data collected with the Belle detector operating at the KEKB asymmetric-energy e+e- collider, we report a study of the electromagnetic decays of excited charmed baryons Ξc(2790) and Ξc(2815). A clear signal (8.6 standard deviations) is observed for Ξc(2815)0→Ξc0γ, and we measure: B[Ξc(2815)0 → Ξc0γ]B[Ξc(2815)0 → Ξc(2645)+π- → Ξc0π+π-]=0.41±0.05±0.03. We also present evidence (3.8 standard deviations) for the similar decay of the Ξc(2790)0 and measure: B[Ξc(2790)0 → Ξc0γ]B[Ξc(2790)0 → Ξc′+π- → Ξc+γπ-]=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 Ξc(2815)+ and Ξc(2790)+ baryons and set upper limits at the 90\% confidence level of: B[Ξc(2815)+ → Ξc+γ]B[Ξc(2815)+ → Ξc(2645)0π+ → Ξc+π-π+]<0.09, and B[Ξc(2790)+ → Ξc+γ]B[Ξc(2790)+ → Ξc′0π+ → Ξc0γπ+]<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.",

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

note = "Publisher Copyright: {\textcopyright} 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",

year = "2020",

month = oct,

day = "26",

doi = "10.1103/PhysRevD.102.071103",

language = "English",

volume = "102",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "7",

}

Yelton, J, Adachi, I, Ahn, JK, Aihara, H, Al Said, S, Asner, DM, 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, TE, Campajola, M, Červenkov, D, Chang, MC, Chang, P, Chekelian, V, Chen, A, Cheon, BG, Chilikin, K, Cho, K, Cho, SJ, Choi, SK, Choi, Y, Choudhury, S, Cinabro, D, Cunliffe, S, De Nardo, G, Di Capua, F, DoleŽal, Z, Dong, TV, Eidelman, S, Epifanov, D, Ferber, T, Fulsom, BG, Garg, R, Gaur, V, Gabyshev, N, Garmash, A, Giri, A, Goldenzweig, P, Hadjivasiliou, C, Hartbrich, O, Hayasaka, K, Hayashii, H, Hedges, MT, Hernandez Villanueva, M, Hou, WS, Hsu, CL, Iijima, T, Inami, K, Inguglia, G, Ishikawa, A, Itoh, R, Iwasaki, M, Iwasaki, Y, Jacobs, WW, Jia, S, Jin, Y, Joo, CW, Joo, KK, Kaliyar, AB, Kang, KH, Karyan, G, Kato, Y, Kawasaki, T, Kichimi, H, Kiesling, C, Kim, BH, Kim, DY, Kim, SH, Kim, YK, Kinoshita, K, Kodyš, P, Korpar, S, Kotchetkov, D, KriŽan, P, Kroeger, R, Krokovny, P, Kulasiri, R, Kumar, R, Kumara, K, Kuzmin, A, Kwon, YJ, Lalwani, K, Lange, JS, Lee, SC, Lewis, P, Li, LK, Li, YB, Li Gioi, L, Libby, J, Lieret, K, Liptak, Z, Liventsev, D, Luo, T, MacQueen, C, Masuda, M, Matsuda, T, Matvienko, D, McNeil, JT, Merola, M, Miyabayashi, K, Miyata, H, Mizuk, R, Mohanty, GB, Mohanty, S, Moon, TJ, Mori, T, Mrvar, M, Mussa, R, Nakano, E, Nakao, M, Natkaniec, Z, Natochii, A, Nayak, M, Nisar, NK, Nishida, S, Ogawa, K, Ogawa, S, Ono, H, Onuki, Y, Oskin, P, Pakhlov, P, Pakhlova, G, Pardi, S, Park, H, Park, SH, Patra, S, Paul, S, Pedlar, TK, Pestotnik, R, Piilonen, LE, Podobnik, T, Popov, V, Prencipe, E, Prim, MT, 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, ME, Shapkin, M, Shebalin, V, Shen, CP, Shiu, JG, Shwartz, B, Singh, JB, Sokolov, A, Solovieva, E, Starič, M, Stottler, ZS, Strube, JF, 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, SE, Van Tonder, R, Varner, G, Vinokurova, A, Vorobyev, V, Waheed, E, Wang, CH, Wang, E, Wang, MZ, Wang, P, Wang, XL, Watanabe, M, Won, E, Xu, X, Yabsley, BD, Yan, W, Yang, SB, Ye, H, Yin, JH, Zhang, ZP, Zhilich, V, Zhukova, V & Zhulanov, V 2020, 'Study of electromagnetic decays of orbitally excited Ξc baryons', Physical Review D, vol. 102, no. 7, 071103. https://doi.org/10.1103/PhysRevD.102.071103

TY - JOUR

T1 - Study of electromagnetic decays of orbitally excited Ξc baryons

AU - Yelton, J.

AU - Adachi, I.

AU - Ahn, J. K.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Bahinipati, S.

AU - Behera, P.

AU - Beleño, C.

AU - Bennett, J.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bilka, T.

AU - Biswal, J.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Campajola, M.

AU - Červenkov, D.

AU - Chang, M. C.

AU - Chang, P.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, K.

AU - Cho, S. J.

AU - Choi, S. K.

AU - Choi, Y.

AU - Choudhury, S.

AU - Cinabro, D.

AU - Cunliffe, S.

AU - De Nardo, G.

AU - Di Capua, F.

AU - DoleŽal, Z.

AU - Dong, T. V.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Garg, R.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Giri, A.

AU - Goldenzweig, P.

AU - Hadjivasiliou, C.

AU - Hartbrich, O.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hedges, M. T.

AU - Hernandez Villanueva, M.

AU - Hou, W. S.

AU - Hsu, C. L.

AU - Iijima, T.

AU - Inami, K.

AU - Inguglia, G.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Jacobs, W. W.

AU - Jia, S.

AU - Jin, Y.

AU - Joo, C. W.

AU - Joo, K. K.

AU - Kaliyar, A. B.

AU - Kang, K. H.

AU - Karyan, G.

AU - Kato, Y.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kiesling, C.

AU - Kim, B. H.

AU - Kim, D. Y.

AU - Kim, S. H.

AU - Kim, Y. K.

AU - Kinoshita, K.

AU - Kodyš, P.

AU - Korpar, S.

AU - Kotchetkov, D.

AU - KriŽan, P.

AU - Kroeger, R.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kumar, R.

AU - Kumara, K.

AU - Kuzmin, A.

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N1 - Publisher Copyright: © 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

PY - 2020/10/26

Y1 - 2020/10/26

N2 - Using 980 fb-1 of data collected with the Belle detector operating at the KEKB asymmetric-energy e+e- collider, we report a study of the electromagnetic decays of excited charmed baryons Ξc(2790) and Ξc(2815). A clear signal (8.6 standard deviations) is observed for Ξc(2815)0→Ξc0γ, and we measure: B[Ξc(2815)0 → Ξc0γ]B[Ξc(2815)0 → Ξc(2645)+π- → Ξc0π+π-]=0.41±0.05±0.03. We also present evidence (3.8 standard deviations) for the similar decay of the Ξc(2790)0 and measure: B[Ξc(2790)0 → Ξc0γ]B[Ξc(2790)0 → Ξc′+π- → Ξc+γπ-]=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 Ξc(2815)+ and Ξc(2790)+ baryons and set upper limits at the 90% confidence level of: B[Ξc(2815)+ → Ξc+γ]B[Ξc(2815)+ → Ξc(2645)0π+ → Ξc+π-π+]<0.09, and B[Ξc(2790)+ → Ξc+γ]B[Ξc(2790)+ → Ξc′0π+ → Ξc0γπ+]<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.

AB - Using 980 fb-1 of data collected with the Belle detector operating at the KEKB asymmetric-energy e+e- collider, we report a study of the electromagnetic decays of excited charmed baryons Ξc(2790) and Ξc(2815). A clear signal (8.6 standard deviations) is observed for Ξc(2815)0→Ξc0γ, and we measure: B[Ξc(2815)0 → Ξc0γ]B[Ξc(2815)0 → Ξc(2645)+π- → Ξc0π+π-]=0.41±0.05±0.03. We also present evidence (3.8 standard deviations) for the similar decay of the Ξc(2790)0 and measure: B[Ξc(2790)0 → Ξc0γ]B[Ξc(2790)0 → Ξc′+π- → Ξc+γπ-]=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 Ξc(2815)+ and Ξc(2790)+ baryons and set upper limits at the 90% confidence level of: B[Ξc(2815)+ → Ξc+γ]B[Ξc(2815)+ → Ξc(2645)0π+ → Ξc+π-π+]<0.09, and B[Ξc(2790)+ → Ξc+γ]B[Ξc(2790)+ → Ξc′0π+ → Ξc0γπ+]<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.

UR - https://www.scopus.com/pages/publications/85096585844

U2 - 10.1103/PhysRevD.102.071103

DO - 10.1103/PhysRevD.102.071103

M3 - Article

AN - SCOPUS:85096585844

SN - 2470-0010

VL - 102

JO - Physical Review D

JF - Physical Review D

IS - 7

M1 - 071103

ER -

Study of electromagnetic decays of orbitally excited Ξc baryons

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