Observation of an Excited Ω^{-} Baryon

J Yelton; I Adachi; J K Ahn; H Aihara; S Al Said; D M Asner; H Atmacan; T Aushev; R Ayad; V Babu; I Badhrees; S Bahinipati; A M Bakich; V Bansal; C Beleño; M Berger; V Bhardwaj; B Bhuyan; T Bilka; J Biswal; A Bondar; G Bonvicini; A Bozek; M Bračko; T E Browder; D Červenkov; V Chekelian; A Chen; B G Cheon; K Chilikin; K Cho; S-K Choi; Y Choi; S Choudhury; D Cinabro; S Cunliffe; T Czank; N Dash; S Di Carlo; Z Doležal; T V Dong; Z Drásal; S Eidelman; D Epifanov; J E Fast; B G Fulsom; R Garg; V Gaur; N Gabyshev; A Garmash; M Gelb; A Giri; P Goldenzweig; D Greenwald; E Guido; J Haba; K Hayasaka; H Hayashii; S Hirose; W-S Hou; K Inami; G Inguglia; A Ishikawa; R Itoh; M Iwasaki; Y Iwasaki; W W Jacobs; H B Jeon; S Jia; Y Jin; K K Joo; T Julius; A B Kaliyar; K H Kang; G Karyan; Y Kato; C Kiesling; D Y Kim; J B Kim; K T Kim; S H Kim; K Kinoshita; P Kodyš; S Korpar; D Kotchetkov; P Križan; R Kroeger; P Krokovny; T Kuhr; R Kumar; A Kuzmin; Y-J Kwon; J S Lange; I S Lee; S C Lee; L K Li; Y B Li; L Li Gioi; J Libby; D Liventsev; M Lubej; T Luo; M Masuda; T Matsuda; D Matvienko; J T McNeil; M Merola; K Miyabayashi; H Miyata; R Mizuk; G B Mohanty; H K Moon; T Mori; R Mussa; E Nakano; M Nakao; T Nanut; K J Nath; Z Natkaniec; M Niiyama; N K Nisar; S Nishida; H Ono; P Pakhlov; G Pakhlova; B Pal; S Pardi; H Park; S Paul; T K Pedlar; R Pestotnik; L E Piilonen; V Popov; M Ritter; G Russo; D Sahoo; Y Sakai; S Sandilya; L Santelj; T Sanuki; V Savinov; O Schneider; G Schnell; C Schwanda; Y Seino; K Senyo; M E Sevior; V Shebalin; C P Shen; T-A Shibata; J-G Shiu; B Shwartz; F Simon; A Sokolov; E Solovieva; M Starič; J F Strube; M Sumihama; T Sumiyoshi; K Suzuki; M Takizawa; U Tamponi; K Tanida; Y Tao; F Tenchini; M Uchida; T Uglov; S Uno; P Urquijo; Y Usov; S E Vahsen; C Van Hulse; G Varner; V Vorobyev; A Vossen; B Wang; C H Wang; M-Z Wang; P Wang; X L Wang; M Watanabe; S Watanuki; E Widmann; E Won; H Ye; C Z Yuan; Y Yusa; S Zakharov; Z P Zhang; V Zhilich; V Zhukova; V Zhulanov; Belle Collaboration

doi:10.1103/PhysRevLett.121.052003

Observation of an Excited Ω^{-} Baryon

Phys Rev Lett. 2018 Aug 3;121(5):052003. doi: 10.1103/PhysRevLett.121.052003.

Authors

J Yelton¹, I Adachi^{2

3}, J K Ahn⁴, H Aihara⁵, S Al Said^{6

7}, D M Asner⁸, H Atmacan⁹, T Aushev¹⁰, R Ayad⁷, V Babu¹¹, I Badhrees^{12

7}, S Bahinipati¹³, A M Bakich¹⁴, V Bansal¹⁵, C Beleño¹⁶, M Berger¹⁷, V Bhardwaj¹⁸, B Bhuyan¹⁹, T Bilka²⁰, J Biswal²¹, A Bondar^{22

23}, G Bonvicini²⁴, A Bozek²⁵, M Bračko^{21

26}, T E Browder²⁷, D Červenkov²⁰, V Chekelian²⁸, A Chen²⁹, B G Cheon³⁰, K Chilikin³¹, K Cho³², S-K Choi³³, Y Choi³⁴, S Choudhury³⁵, D Cinabro²⁴, S Cunliffe³⁶, T Czank³⁷, N Dash¹³, S Di Carlo³⁸, Z Doležal²⁰, T V Dong^{2

3}, Z Drásal²⁰, S Eidelman^{22

31

23}, D Epifanov^{22

23}, J E Fast¹⁵, B G Fulsom¹⁵, R Garg³⁹, V Gaur⁴⁰, N Gabyshev^{22

23}, A Garmash^{22

23}, M Gelb⁴¹, A Giri³⁵, P Goldenzweig⁴¹, D Greenwald⁴², E Guido⁴³, J Haba^{2

3}, K Hayasaka⁴⁴, H Hayashii⁴⁵, S Hirose⁴⁶, W-S Hou⁴⁷, K Inami⁴⁶, G Inguglia³⁶, A Ishikawa³⁷, R Itoh^{2

3}, M Iwasaki⁴⁸, Y Iwasaki³, W W Jacobs⁴⁹, H B Jeon⁵⁰, S Jia⁵¹, Y Jin⁵, K K Joo⁵², T Julius⁵³, A B Kaliyar⁵⁴, K H Kang⁵⁰, G Karyan³⁶, Y Kato⁴⁶, C Kiesling²⁸, D Y Kim⁵⁵, J B Kim⁴, K T Kim⁴, S H Kim³⁰, K Kinoshita⁵⁶, P Kodyš²⁰, S Korpar^{21

26}, D Kotchetkov²⁷, P Križan^{21

57}, R Kroeger⁵⁸, P Krokovny^{22

23}, T Kuhr⁵⁹, R Kumar⁶⁰, A Kuzmin^{22

23}, Y-J Kwon⁶¹, J S Lange⁶², I S Lee³⁰, S C Lee⁵⁰, L K Li⁶³, Y B Li⁶⁴, L Li Gioi²⁸, J Libby⁵⁴, D Liventsev^{3

40}, M Lubej²¹, T Luo⁶⁵, M Masuda⁶⁶, T Matsuda⁶⁷, D Matvienko^{22

31

23}, J T McNeil¹, M Merola^{68

69}, K Miyabayashi⁴⁵, H Miyata⁴⁴, R Mizuk^{31

70

10}, G B Mohanty¹¹, H K Moon⁴, T Mori⁴⁶, R Mussa⁴³, E Nakano⁴⁸, M Nakao^{2

3}, T Nanut²¹, K J Nath¹⁹, Z Natkaniec²⁵, M Niiyama⁷¹, N K Nisar⁷², S Nishida^{2

3}, H Ono^{73

44}, P Pakhlov^{31

70}, G Pakhlova^{31

10}, B Pal⁸, S Pardi⁶⁸, H Park⁵⁰, S Paul⁴², T K Pedlar⁷⁴, R Pestotnik²¹, L E Piilonen⁴⁰, V Popov^{31

10}, M Ritter⁵⁹, G Russo⁶⁸, D Sahoo¹¹, Y Sakai^{2

3}, S Sandilya⁵⁶, L Santelj³, T Sanuki³⁷, V Savinov⁷², O Schneider⁷⁵, G Schnell^{76

77}, C Schwanda⁷⁸, Y Seino⁴⁴, K Senyo⁷⁹, M E Sevior⁵³, V Shebalin^{22

23}, C P Shen⁵¹, T-A Shibata⁸⁰, J-G Shiu⁴⁷, B Shwartz^{22

23}, F Simon^{28

81}, A Sokolov⁸², E Solovieva^{31

10}, M Starič²¹, J F Strube¹⁵, M Sumihama⁸³, T Sumiyoshi⁸⁴, K Suzuki¹⁷, M Takizawa^{85

86

87}, U Tamponi⁴³, K Tanida⁸⁸, Y Tao¹, F Tenchini⁵³, M Uchida⁸⁰, T Uglov^{31

10}, S Uno^{2

3}, P Urquijo⁵³, Y Usov^{22

23}, S E Vahsen²⁷, C Van Hulse⁷⁶, G Varner²⁷, V Vorobyev^{22

31

23}, A Vossen⁸⁹, B Wang⁵⁶, C H Wang⁹⁰, M-Z Wang⁴⁷, P Wang⁶³, X L Wang⁶⁵, M Watanabe⁴⁴, S Watanuki³⁷, E Widmann¹⁷, E Won⁴, H Ye³⁶, C Z Yuan⁶³, Y Yusa⁴⁴, S Zakharov^{31

10}, Z P Zhang⁹¹, V Zhilich^{22

23}, V Zhukova^{31

70}, V Zhulanov^{22

23}; Belle Collaboration

Affiliations

¹ University of Florida, Gainesville, Florida 32611.
² SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193.
³ High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801.
⁴ Korea University, Seoul 136-713.
⁵ Department of Physics, University of Tokyo, Tokyo 113-0033.
⁶ Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589.
⁷ Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451.
⁸ Brookhaven National Laboratory, Upton, New York 11973.
⁹ University of South Carolina, Columbia, South Carolina 29208.
¹⁰ Moscow Institute of Physics and Technology, Moscow Region 141700.
¹¹ Tata Institute of Fundamental Research, Mumbai 400005.
¹² King Abdulaziz City for Science and Technology, Riyadh 11442.
¹³ Indian Institute of Technology Bhubaneswar, Satya Nagar 751007.
¹⁴ School of Physics, University of Sydney, New South Wales 2006.
¹⁵ Pacific Northwest National Laboratory, Richland, Washington 99352.
¹⁶ II. Physikalisches Institut, Georg-August-Universität Göttingen, 37073 Göttingen.
¹⁷ Stefan Meyer Institute for Subatomic Physics, Vienna 1090.
¹⁸ Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306.
¹⁹ Indian Institute of Technology Guwahati, Assam 781039.
²⁰ Faculty of Mathematics and Physics, Charles University, 121 16 Prague.
²¹ J. Stefan Institute, 1000 Ljubljana.
²² Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090.
²³ Novosibirsk State University, Novosibirsk 630090.
²⁴ Wayne State University, Detroit, Michigan 48202.
²⁵ H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342.
²⁶ University of Maribor, 2000 Maribor.
²⁷ University of Hawaii, Honolulu, Hawaii 96822.
²⁸ Max-Planck-Institut für Physik, 80805 München.
²⁹ National Central University, Chung-li 32054.
³⁰ Hanyang University, Seoul 133-791.
³¹ P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991.
³² Korea Institute of Science and Technology Information, Daejeon 305-806.
³³ Gyeongsang National University, Chinju 660-701.
³⁴ Sungkyunkwan University, Suwon 440-746.
³⁵ Indian Institute of Technology Hyderabad, Telangana 502285.
³⁶ Deutsches Elektronen-Synchrotron, 22607 Hamburg.
³⁷ Department of Physics, Tohoku University, Sendai 980-8578.
³⁸ LAL, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay.
³⁹ Panjab University, Chandigarh 160014.
⁴⁰ Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061.
⁴¹ Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe.
⁴² Department of Physics, Technische Universität München, 85748 Garching.
⁴³ INFN-Sezione di Torino, 10125 Torino.
⁴⁴ Niigata University, Niigata 950-2181.
⁴⁵ Nara Women's University, Nara 630-8506.
⁴⁶ Graduate School of Science, Nagoya University, Nagoya 464-8602.
⁴⁷ Department of Physics, National Taiwan University, Taipei 10617.
⁴⁸ Osaka City University, Osaka 558-8585.
⁴⁹ Indiana University, Bloomington, Indiana 47408.
⁵⁰ Kyungpook National University, Daegu 702-701.
⁵¹ Beihang University, Beijing 100191.
⁵² Chonnam National University, Kwangju 660-701.
⁵³ School of Physics, University of Melbourne, Victoria 3010.
⁵⁴ Indian Institute of Technology Madras, Chennai 600036.
⁵⁵ Soongsil University, Seoul 156-743.
⁵⁶ University of Cincinnati, Cincinnati, Ohio 45221.
⁵⁷ Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana.
⁵⁸ University of Mississippi, University, Mississippi 38677.
⁵⁹ Ludwig Maximilians University, 80539 Munich.
⁶⁰ Punjab Agricultural University, Ludhiana 141004.
⁶¹ Yonsei University, Seoul 120-749.
⁶² Justus-Liebig-Universität Gießen, 35392 Gießen.
⁶³ Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049.
⁶⁴ Peking University, Beijing 100871.
⁶⁵ Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443.
⁶⁶ Earthquake Research Institute, University of Tokyo, Tokyo 113-0032.
⁶⁷ University of Miyazaki, Miyazaki 889-2192.
⁶⁸ INFN-Sezione di Napoli, 80126 Napoli.
⁶⁹ Università di Napoli Federico II, 80055 Napoli.
⁷⁰ Moscow Physical Engineering Institute, Moscow 115409.
⁷¹ Kyoto University, Kyoto 606-8502.
⁷² University of Pittsburgh, Pittsburgh, Pennsylvania 15260.
⁷³ Nippon Dental University, Niigata 951-8580.
⁷⁴ Luther College, Decorah, Iowa 52101.
⁷⁵ École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015.
⁷⁶ University of the Basque Country UPV/EHU, 48080 Bilbao.
⁷⁷ IKERBASQUE, Basque Foundation for Science, 48013 Bilbao.
⁷⁸ Institute of High Energy Physics, Vienna 1050.
⁷⁹ Yamagata University, Yamagata 990-8560.
⁸⁰ Tokyo Institute of Technology, Tokyo 152-8550.
⁸¹ Excellence Cluster Universe, Technische Universität München, 85748 Garching.
⁸² Institute for High Energy Physics, Protvino 142281.
⁸³ Gifu University, Gifu 501-1193.
⁸⁴ Tokyo Metropolitan University, Tokyo 192-0397.
⁸⁵ J-PARC Branch, KEK Theory Center, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801.
⁸⁶ Theoretical Research Division, Nishina Center, RIKEN, Saitama 351-0198.
⁸⁷ Showa Pharmaceutical University, Tokyo 194-8543.
⁸⁸ Advanced Science Research Center, Japan Atomic Energy Agency, Naka 319-1195.
⁸⁹ Duke University, Durham, North Carolina 27708.
⁹⁰ National United University, Miao Li 36003.
⁹¹ University of Science and Technology of China, Hefei 230026.

PMID: 30118260
DOI: 10.1103/PhysRevLett.121.052003

Abstract

Using data recorded with the Belle detector, we observe a new excited hyperon, an Ω^{*-} candidate decaying into Ξ^{0}K^{-} and Ξ^{-}K_{S}^{0} with a mass of 2012.4±0.7(stat)±0.6(syst) MeV/c^{2} and a width of Γ=6.4_{-2.0}^{+2.5}(stat)±1.6(syst) MeV. The Ω^{*-} is seen primarily in ϒ(1S),ϒ(2S), and ϒ(3S) decays.