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Study of electromagnetic decays of orbitally excited Xi(c) baryons
- Authors
- Yelton, J[Yelton, J.]; Adachi, I[Adachi, I]; Ahn, JK[Ahn, J. K.]; Aihara, H[Aihara, H.]; Al Said, S[Al Said, S.]; Asner, DM[Asner, D. M.]; Aushev, T[Aushev, T.]; Ayad, R[Ayad, R.]; Babu, V[Babu, V]; Bahinipati, S[Bahinipati, S.]; Behera, P[Behera, P.]; Beleno, C[Beleno, C.]; Bennett, J[Bennett, J.]; Bhardwaj, V[Bhardwaj, V]; Bhuyan, B[Bhuyan, B.]; Bilka, T[Bilka, T.]; Biswal, J[Biswal, J.]; Bonvicini, G[Bonvicini, G.]; Bozek, A[Bozek, A.]; Bracko, M[Bracko, M.]; Browder, TE[Browder, T. E.]; Campajola, M[Campajola, M.]; Cervenkov, D[Cervenkov, D.]; Chang, MC[Chang, M-C]; Chang, P[Chang, P.]; Chekelian, V[Chekelian, V]; Chen, A[Chen, A.]; Cheon, BG[Cheon, B. G.]; Chilikin, K[Chilikin, K.]; Cho, K[Cho, K.]; Cho, SJ[Cho, S-J]; Choi, SK[Choi, S-K]; Choi, Y[Choi, Y.]; Choudhury, S[Choudhury, S.]; Cinabro, D[Cinabro, D.]; Cunliffe, S[Cunliffe, S.]; De Nardo, G[De Nardo, G.]; Di Capua, F[Di Capua, F.]; Dolezal, Z[Dolezal, Z.]; Dong, TV[Dong, T., V]; Eidelman, S[Eidelman, S.]; Epifanov, D[Epifanov, D.]; Ferber, T[Ferber, T.]; Fulsom, BG[Fulsom, B. G.]; Garg, R[Garg, R.]; Gaur, V[Gaur, V]; Gabyshev, N[Gabyshev, N.]; Garmash, A[Garmash, A.]; Giri, A[Giri, A.]; Goldenzweig, P[Goldenzweig, P.]; Hadjivasiliou, C[Hadjivasiliou, C.]; Hartbrich, O[Hartbrich, O.]; Hayasaka, K[Hayasaka, K.]; Hayashii, H[Hayashii, H.]; Hedges, MT[Hedges, M. T.]; Villanueva, MH[Villanueva, M. Hernandez]; Hou, WS[Hou, W-S]; Hsu, CL[Hsu, C-L]; Iijima, T[Iijima, T.]; Inami, K[Inami, K.]; Inguglia, G[Inguglia, G.]; Ishikawa, A[Ishikawa, A.]; Itoh, R[Itoh, R.]; Iwasaki, M[Iwasaki, M.]; Iwasaki, Y[Iwasaki, Y.]; Jacobs, WW[Jacobs, W. W.]; Jia, S[Jia, S.]; Jin, Y[Jin, Y.]; Joo, CW[Joo, C. W.]; Joo, KK[Joo, K. K.]; Kaliyar, AB[Kaliyar, A. B.]; Kang, KH[Kang, K. H.]; Karyan, G[Karyan, G.]; Kato, Y[Kato, Y.]; Kawasaki, T[Kawasaki, T.]; Kichimi, H[Kichimi, H.]; Kiesling, C[Kiesling, C.]; Kim, BH[Kim, B. H.]; Kim, DY[Kim, D. Y.]; Kim, SH[Kim, S. H.]; Kim, YK[Kim, Y-K]; Kinoshita, K[Kinoshita, K.]; Kodys, P[Kodys, P.]; Korpar, S[Korpar, S.]; Kotchetkov, D[Kotchetkov, D.]; Krizan, P[Krizan, P.]; Kroeger, R[Kroeger, R.]; Krokovny, P[Krokovny, P.]; Kulasiri, R[Kulasiri, R.]; Kumar, R[Kumar, R.]; Kumara, K[Kumara, K.]; Kuzmin, A[Kuzmin, A.]; Kwon, YJ[Kwon, Y-J]; Lalwani, K[Lalwani, K.]; Lange, JS[Lange, J. S.]; Lee, SC[Lee, S. C.]; Lewis, P[Lewis, P.]; Li, LK[Li, L. K.]; Li, YB[Li, Y. B.]; Li Gioi, L[Li Gioi, L.]; Libby, J[Libby, J.]; Lieret, K[Lieret, K.]; Liptak, Z[Liptak, Z.]; Liventsev, D[Liventsev, D.]; Luo, T[Luo, T.]; MacQueen, C[MacQueen, C.]; Masuda, M[Masuda, M.]; Matsuda, T[Matsuda, T.]; Matvienko, D[Matvienko, D.]; McNeil, JT[McNeil, J. T.]; Merola, M[Merola, M.]; Miyabayashi, K[Miyabayashi, K.]; Miyata, H[Miyata, H.]; Mizuk, R[Mizuk, R.]; Mohanty, GB[Mohanty, G. B.]; Mohanty, S[Mohanty, S.]; Moon, TJ[Moon, T. J.]; Mori, T[Mori, T.]; Mrvar, M[Mrvar, M.]; Mussa, R[Mussa, R.]; Nakano, E[Nakano, E.]; Nakao, M[Nakao, M.]; Natkaniec, Z[Natkaniec, Z.]; Natochii, A[Natochii, A.]; Nayak, M[Nayak, M.]; Nisar, NK[Nisar, N. K.]; Nishida, S[Nishida, S.]; Ogawa, K[Ogawa, K.]; Ogawa, S[Ogawa, S.]; Ono, H[Ono, H.]; Onuki, Y[Onuki, Y.]; Oskin, P[Oskin, P.]; Pakhlov, P[Pakhlov, P.]; Pakhlova, G[Pakhlova, G.]; Pardi, S[Pardi, S.]; Park, H[Park, H.]; Park, SH[Park, S-H]; Patra, S[Patra, S.]; Paul, S[Paul, S.]; Pedlar, TK[Pedlar, T. K.]; Pestotnik, R[Pestotnik, R.]; Piilonen, LE[Piilonen, L. E.]; Podobnik, T[Podobnik, T.]; Popov, V[Popov, V]; Prencipe, E[Prencipe, E.]; Prim, MT[Prim, M. T.]; Ritter, M[Ritter, M.]; Rostomyan, A[Rostomyan, A.]; Rout, N[Rout, N.]; Russo, G[Russo, G.]; Sahoo, D[Sahoo, D.]; Sakai, Y[Sakai, Y.]; Sandilya, S[Sandilya, S.]; Santelj, L[Santelj, L.]; Sanuki, T[Sanuki, T.]; Savinov, V[Savinov, V]; Schnell, G[Schnell, G.]; Schueler, J[Schueler, J.]; Schwanda, C[Schwanda, C.]; Seino, Y[Seino, Y.]; Senyo, K[Senyo, K.]; Sevior, ME[Sevior, M. E.]; Shapkin, M[Shapkin, M.]; Shebalin, V[Shebalin, V]; Shen, CP[Shen, C. P.]; Shiu, JG[Shiu, J-G]; Shwartz, B[Shwartz, B.]; Singh, JB[Singh, J. B.]; Sokolov, A[Sokolov, A.]; Solovieva, E[Solovieva, E.]; Staric, M[Staric, M.]; Stottler, ZS[Stottler, Z. S.]; Strube, JF[Strube, J. F.]; Sumihama, M[Sumihama, M.]; Sumisawa, K[Sumisawa, K.]; Sumiyoshi, T[Sumiyoshi, T.]; Sutcliffe, W[Sutcliffe, W.]; Takizawa, M[Takizawa, M.]; Tamponi, U[Tamponi, U.]; Tanida, K[Tanida, K.]; Tenchini, F[Tenchini, F.]; Uchida, M[Uchida, M.]; Uglov, T[Uglov, T.]; Unno, Y[Unno, Y.]; Uno, S[Uno, S.]; Urquijo, P[Urquijo, P.]; Usov, Y[Usov, Y.]; Vahsen, SE[Vahsen, S. E.]; Van Tonder, R[Van Tonder, R.]; Varner, G[Varner, G.]; Vinokurova, A[Vinokurova, A.]; Vorobyev, V[Vorobyev, V.]; Waheed, E[Waheed, E.]; Wang, CH[Wang, C. H.]; Wang, E[Wang, E.]; Wang, MZ[Wang, M-Z]; Wang, P[Wang, P.]; Wang, XL[Wang, X. L.]; Watanabe, M[Watanabe, M.]; Won, E[Won, E.]; Xu, X[Xu, X.]; Yabsley, BD[Yabsley, B. D.]; Yan, W[Yan, W.]; Yang, SB[Yang, S. B.]; Ye, H[Ye, H.]; Yin, JH[Yin, J. H.]; Zhang, ZP[Zhang, Z. P.]; Zhilich, V[Zhilich, V]; Zhukova, V[Zhukova, V]; Zhulanov, V[Zhulanov, V]
- Issue Date
- 26-Oct-2020
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.102, no.7
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 102
- Number
- 7
- ISSN
- 2470-0010
- 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 Xi(c)(2790) and Xi(c)(2815). A clear signal (8.6 standard deviations) is observed for Xi(c)(2815)(0) -> Xi(0)(c)gamma, and we measure: B[Xi(c)(2815)(0) -> Xi(0)(c)gamma]/B[Xi(c)(2815)(0) -> Xi(c)(2645)(+)pi(-) -> Xi(0)(c)pi(+)pi(-)] = - 0.41 +/- 0.05 +/- 0.03. We also present evidence (3.8 standard deviations) for the similar decay of the Xi(c)(2790)(0) and measure:B[Xi(c)(2790)(0) -> Xi(0)(c)gamma]/B[Xi(c)(2790)(0) -> Xi(c)'(+)pi(-) -> Xi(+)(c)gamma pi(-)] = 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 Xi(c)(2815)(+) and Xi(c)(2790)(+) baryons and set upper limits at the 90% confidence level of: B[Xi(c)(2815)(0) -> Xi(0)(c)gamma]/B[Xi(c)(2815)(0) -> Xi(c)(2645)(0)pi(+) -> Xi(+)(c)pi(-)pi(+)] < 0.09, and B[Xi(c)(2790)(+) -> Xi(0)(c)gamma]/B[Xi(c)(2815)(+) -> Xi(c)'(0)pi(+) -> Xi(0)(c)gamma pi(+)] < 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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