Observation of Xi(1620)(0) and Evidence for Xi(1690)(0) in Xi(+)(c) -> Xi(-) pi(+) pi(+) Decays

Observation of Ξ (1620)0 and Evidence for Ξ (1690)0 in Ξc+ → Ξ-π+π+ Decays
  • Sumihama, M.
  • Adachi, I.
  • Ahn, J. K.
  • Aihara, H.
  • Al Said, S.
  • ... Cheon, B. G.
  • 외 180명
Citations

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46

초록

We report the first observation of the double strange baryon Xi(1620)(0) in its decay to Xi(-) pi(+) via Xi(+)(c) -> Xi(-)pi(+)pi(+) decays based on a 980 fb(-1) data sample collected with the Belle detector at the KEKB asymmetricenergy e(+)e(-) collider. The mass and width are measured to be 1610.4 +/- 6.0(stat)(-4.2)(+6.1) (syst) MeV/c(2) and 59.9 +/- 4.8(stat)(-7.1)(+2.8)(syst) MeV, respectively. We obtain 4.0 sigma evidence of the Xi(1690)(0) with the same data sample. These results shed light on the structure of hyperon resonances with strangeness S = -2.

키워드

QUARK-MODELBARYONSAtomic physicsAsymmetric energyBelle detectorsData sampleE+e- colliderHyperon resonancePhysics
제목
Observation of Xi(1620)(0) and Evidence for Xi(1690)(0) in Xi(+)(c) -> Xi(-) pi(+) pi(+) Decays
제목 (타언어)
Observation of Ξ (1620)0 and Evidence for Ξ (1690)0 in Ξc+ → Ξ-π+π+ Decays
저자
Sumihama, M.Adachi, I.Ahn, J. K.Aihara, H.Al Said, S.Asner, D. M.Atmacan, H.Aushev, T.Ayad, R.Babu, V.Badhrees, I.Bahinipati, S.Bakich, A. M.Bansal, V.Beleno, C.Berger, M.Bhardwaj, V.Bhuyan, B.Bilka, T.Biswal, J.Bonvicini, G.Bozek, A.Bracko, M.Browder, T. E.Cervenkov, D.Chekelian, V.Chen, A.Cheon, B. G.Chilikin, K.Cho, K.Choi, S. -K.Choi, Y.Choudhury, S.Cinabro, D.Cunliffe, S.Czank, T.Dash, N.Di Carlo, S.Dolezal, Z.Dong, T. V.Drasal, Z.Eidelman, S.Epifanov, D.Fast, J. E.Fulsom, B. G.Garg, R.Gaur, V.Gabyshev, N.Garmash, A.Gelb, M.Giri, A.Goldenzweig, P.Guido, E.Haba, J.Hayasaka, K.Hayashii, H.Hirose, S.Hou, W. -S.Inami, K.Inguglia, G.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Jacobs, W. W.Jeon, H. B.Jia, S.Jin, Y.Joo, K. K.Julius, T.Kaliyar, A. B.Kang, K. H.Karyan, G.Kato, Y.Kiesling, C.Kim, D. Y.Kim, J. B.Kim, K. T.Kim, S. H.Kinoshita, K.Kodys, P.Korpar, S.Kotchetkov, D.Krizan, P.Kroeger, R.Krokovny, P.Kumar, R.Kuzmin, A.Kwon, Y. -J.Lange, J. S.Lee, I. S.Lee, S. C.Li, L. K.Li, Y. B.Gioi, L. LiLibby, J.Liventsev, D.Lubej, M.Luo, T.Masuda, M.Matsuda, T.Matvienko, D.Merola, M.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Moon, H. K.Mori, T.Mussa, R.Nakano, E.Nakano, T.Nakao, M.Nanut, T.Nath, K. J.Natkaniec, Z.Niiyama, M.Nisar, N. K.Nishida, S.Ono, H.Pakhlov, P.Pakhlova, G.Pal, B.Pardi, S.Park, H.Paul, S.Pedlar, T. K.Pestotnik, R.Piilonen, L. E.Popov, V.Ritter, M.Russo, G.Sahoo, D.Sandilya, S.Santelj, L.Sanuki, T.Savinov, V.Schneider, O.Schnell, G.Schwanda, C.Seino, Y.Senyo, K.Sevior, M. E.Shebalin, V.Shen, C. P.Shibata, T. -A.Shiu, J. -G.Shwartz, B.Simon, F.Sokolov, A.Solovieva, E.Staric, M.Strube, J. F.Sumiyoshi, T.Takizawa, M.Tamponi, U.Tanida, K.Taniguchi, N.Tenchini, F.Uchida, M.Uglov, T.Uno, S.Urquijo, P.Vahsen, S. E.Van Hulse, C.Varner, G.Vorobyev, V.Vossen, A.Wang, B.Wang, C. H.Wang, M. -Z.Wang, P.Wang, X. L.Watanabe, M.Watanuki, S.Widmann, E.Won, E.Ye, H.Yelton, J.Yuan, C. Z.Yusa, Y.Zakharov, S.Zhang, Z. P.Zhilich, V.Zhukova, V.Zhulanov, V.
DOI
10.1103/PhysRevLett.122.072501
발행일
2019-02
유형
Article
저널명
Physical Review Letters
122
7
페이지
1 ~ 7

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