Measurement of the resonant and nonresonant branching ratios in Ξc0 → Ξ0K+K-

J. T. McNeil; J. Yelton; J. Bennett; I. Adachi; K. Adamczyk; J. K. Ahn; H. Aihara; S. Al Said; D. M. Asner; H. Atmacan; V. Aulchenko; T. Aushev; R. Ayad; V. Babu; S. Bahinipati; P. Behera; M. Bessner; T. Bilka; J. Biswal; A. Bobrov; G. Bonvicini; A. Bozek; M. Bračko; T. E. Browder; M. Campajola; L. Cao; D. Červenkov; 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; S. Das; N. Dash; G. De Nardo; R. Dhamija; F. Di Capua; Z. DoleŽal; T. V. Dong; S. Eidelman; T. Ferber; B. G. Fulsom; V. Gaur; N. Gabyshev; A. Garmash; A. Giri; P. Goldenzweig; B. Golob; O. Grzymkowska; Y. Guan; K. Gudkova; C. Hadjivasiliou; K. Hayasaka; H. Hayashii; W. S. Hou; C. L. Hsu; K. Huang; K. Inami; A. Ishikawa; R. Itoh; M. Iwasaki; W. W. Jacobs; H. B. Jeon; S. Jia; Y. Jin; K. K. Joo; A. B. Kaliyar; K. H. Kang; G. Karyan; H. Kichimi; B. H. Kim; C. H. Kim; D. Y. Kim; S. H. Kim; Y. K. Kim; K. Kinoshita; P. Kodyš; T. Konno; S. Korpar; P. KriŽan; R. Kroeger; P. Krokovny; T. Kuhr; R. Kulasiri; M. Kumar; K. Kumara; Y. J. Kwon; K. Lalwani; S. C. Lee; J. Li; L. K. Li; Y. B. Li; L. Li Gioi; J. Libby; K. Lieret; Z. Liptak; D. Liventsev; C. Macqueen; M. Masuda; T. Matsuda; D. Matvienko; M. Merola; F. Metzner; K. Miyabayashi; R. Mizuk; G. B. Mohanty; S. Mohanty; T. J. Moon; R. Mussa; M. Nakao; A. Natochii; L. Nayak; M. Nayak; M. Niiyama; N. K. Nisar; S. Nishida; K. Ogawa; S. Ogawa; H. Ono; Y. Onuki; P. Oskin; G. Pakhlova; S. Pardi; H. Park; S. H. Park; S. Paul; T. K. Pedlar; R. Pestotnik; L. E. Piilonen; T. Podobnik; V. Popov; E. Prencipe; M. T. Prim; M. Röhrken; A. Rostomyan; N. Rout; G. Russo; D. Sahoo; Y. Sakai; S. Sandilya; A. Sangal; L. Santelj; V. Savinov; G. Schnell; J. Schueler; C. Schwanda; Y. Seino; K. Senyo; M. E. Sevior; M. Shapkin; C. Sharma; V. Shebalin; J. G. Shiu; F. Simon; E. Solovieva; M. Starič; Z. S. Stottler; J. F. Strube; M. Sumihama; T. Sumiyoshi; M. Takizawa; U. Tamponi; K. Tanida; Y. Tao; F. Tenchini; M. Uchida; S. Uehara; Y. Unno; S. Uno; R. Van Tonder; G. Varner; A. Vinokurova; V. Vorobyev; C. H. Wang; E. Wang; M. Z. Wang; P. Wang; M. Watanabe; S. Watanuki; E. Won; X. Xu; B. D. Yabsley; W. Yan; H. Ye; J. H. Yin; Z. P. Zhang; V. Zhilich; V. Zhukova

doi:10.1103/PhysRevD.103.112002

Measurement of the resonant and nonresonant branching ratios in Ξc0 → Ξ0K+K-

J. T. McNeil, J. Yelton, J. Bennett, I. Adachi, K. Adamczyk, J. K. Ahn, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, R. Ayad, V. Babu, S. Bahinipati, P. Behera, M. Bessner, T. Bilka, J. Biswal, A. BobrovG. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, M. Campajola, L. Cao, D. Červenkov, 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, S. Das, N. Dash, G. De Nardo, R. Dhamija, F. Di Capua, Z. DoleŽal, T. V. Dong, S. Eidelman, T. Ferber, B. G. Fulsom, V. Gaur, N. Gabyshev, A. Garmash, A. Giri, P. Goldenzweig, B. Golob, O. Grzymkowska, Y. Guan, K. Gudkova, C. Hadjivasiliou, K. Hayasaka, H. Hayashii, W. S. Hou, C. L. Hsu, K. Huang, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, W. W. Jacobs, H. B. Jeon, S. Jia, Y. Jin, K. K. Joo, A. B. Kaliyar, K. H. Kang, G. Karyan, H. Kichimi, B. H. Kim, C. H. Kim, D. Y. Kim, S. H. Kim, Y. K. Kim, K. Kinoshita, P. Kodyš, T. Konno, S. Korpar, P. KriŽan, R. Kroeger, P. Krokovny, T. Kuhr, R. Kulasiri, M. Kumar, K. Kumara, Y. J. Kwon, K. Lalwani, S. C. Lee, J. Li, L. K. Li, Y. B. Li, L. Li Gioi, J. Libby, K. Lieret, Z. Liptak, D. Liventsev, C. Macqueen, M. Masuda, T. Matsuda, D. Matvienko, M. Merola, F. Metzner, K. Miyabayashi, R. Mizuk, G. B. Mohanty, S. Mohanty, T. J. Moon, R. Mussa, M. Nakao, A. Natochii, L. Nayak, M. Nayak, M. Niiyama, N. K. Nisar, S. Nishida, K. Ogawa, S. Ogawa, H. Ono, Y. Onuki, P. Oskin, G. Pakhlova, S. Pardi, H. Park, S. H. Park, S. Paul, T. K. Pedlar, R. Pestotnik, L. E. Piilonen, T. Podobnik, V. Popov, E. Prencipe, M. T. Prim, M. Röhrken, A. Rostomyan, N. Rout, G. Russo, D. Sahoo, Y. Sakai, S. Sandilya, A. Sangal, L. Santelj, V. Savinov, G. Schnell, J. Schueler, C. Schwanda, Y. Seino, K. Senyo, M. E. Sevior, M. Shapkin, C. Sharma, V. Shebalin, J. G. Shiu, F. Simon, E. Solovieva, M. Starič, Z. S. Stottler, J. F. Strube, M. Sumihama, T. Sumiyoshi, M. Takizawa, U. Tamponi, K. Tanida, Y. Tao, F. Tenchini, M. Uchida, S. Uehara, Y. Unno, S. Uno, R. Van Tonder, G. Varner, A. Vinokurova, V. Vorobyev, C. H. Wang, E. Wang, M. Z. Wang, P. Wang, M. Watanabe, S. Watanuki, E. Won, X. Xu, B. D. Yabsley, W. Yan, H. Ye, J. H. Yin, Z. P. Zhang, V. Zhilich, V. Zhukova

Department of Physics

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

4 Citations (Scopus)

Abstract

Using the entire data sample of 980 fb-1 integrated luminosity collected with the Belle detector at the KEKB asymmetric-energy e+e- collider, we present an amplitude analysis measuring the branching fractions of the Cabibbo-allowed, W-exchange resonant decay Ξc0→Ξ0φ(→K+K-) with a polarized φ and the nonresonant decay via a direct process Ξc0→Ξ0K+K-. We present these measurements, relative to the normalization mode Ξ-π+, and find branching ratios B(Ξc0→Ξ0φ(→K+K-))(BΞc0→Ξ-π+)=0.036±0.004(stat.)±0.002(syst.) and B(Ξc0→Ξ0K+K-)B(Ξc0→Ξ-π+)=0.039±0.004(stat.)±0.002(syst.), which suggest that only minor cusping peaks occur in the combinatorial background of ω∗-→Ξ0K- due to these Ξc0 decays.

Original language	English
Article number	112002
Journal	Physical Review D
Volume	103
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.103.112002
Publication status	Published - 2021 Jun 1

Bibliographical note

Publisher Copyright:
© 2021 authors. Published by the American Physical Society.

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1103/PhysRevD.103.112002

Cite this

McNeil, J. T., Yelton, J., Bennett, J., Adachi, I., Adamczyk, K., Ahn, J. K., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Bessner, M., Bilka, T., Biswal, J., ... Zhukova, V. (2021). Measurement of the resonant and nonresonant branching ratios in Ξc0 → Ξ0K+K-. Physical Review D, 103(11), Article 112002. https://doi.org/10.1103/PhysRevD.103.112002

McNeil, JT, Yelton, J, Bennett, J, Adachi, I, Adamczyk, K, Ahn, JK, Aihara, H, Al Said, S, Asner, DM, Atmacan, H, Aulchenko, V, Aushev, T, Ayad, R, Babu, V, Bahinipati, S, Behera, P, Bessner, M, Bilka, T, Biswal, J, Bobrov, A, Bonvicini, G, Bozek, A, Bračko, M, Browder, TE, Campajola, M, Cao, L, Červenkov, D, Chang, P, Chekelian, V, Chen, A, Cheon, BG, Chilikin, K, Cho, K, Cho, SJ, Choi, SK, Choi, Y, Choudhury, S, Cinabro, D, Cunliffe, S, Das, S, Dash, N, De Nardo, G, Dhamija, R, Di Capua, F, DoleŽal, Z, Dong, TV, Eidelman, S, Ferber, T, Fulsom, BG, Gaur, V, Gabyshev, N, Garmash, A, Giri, A, Goldenzweig, P, Golob, B, Grzymkowska, O, Guan, Y, Gudkova, K, Hadjivasiliou, C, Hayasaka, K, Hayashii, H, Hou, WS, Hsu, CL, Huang, K, Inami, K, Ishikawa, A, Itoh, R, Iwasaki, M, Jacobs, WW, Jeon, HB, Jia, S, Jin, Y, Joo, KK, Kaliyar, AB, Kang, KH, Karyan, G, Kichimi, H, Kim, BH, Kim, CH, Kim, DY, Kim, SH, Kim, YK, Kinoshita, K, Kodyš, P, Konno, T, Korpar, S, KriŽan, P, Kroeger, R, Krokovny, P, Kuhr, T, Kulasiri, R, Kumar, M, Kumara, K, Kwon, YJ, Lalwani, K, Lee, SC, Li, J, Li, LK, Li, YB, Li Gioi, L, Libby, J, Lieret, K, Liptak, Z, Liventsev, D, Macqueen, C, Masuda, M, Matsuda, T, Matvienko, D, Merola, M, Metzner, F, Miyabayashi, K, Mizuk, R, Mohanty, GB, Mohanty, S, Moon, TJ, Mussa, R, Nakao, M, Natochii, A, Nayak, L, Nayak, M, Niiyama, M, Nisar, NK, Nishida, S, Ogawa, K, Ogawa, S, Ono, H, Onuki, Y, Oskin, P, Pakhlova, G, Pardi, S, Park, H, Park, SH, Paul, S, Pedlar, TK, Pestotnik, R, Piilonen, LE, Podobnik, T, Popov, V, Prencipe, E, Prim, MT, Röhrken, M, Rostomyan, A, Rout, N, Russo, G, Sahoo, D, Sakai, Y, Sandilya, S, Sangal, A, Santelj, L, Savinov, V, Schnell, G, Schueler, J, Schwanda, C, Seino, Y, Senyo, K, Sevior, ME, Shapkin, M, Sharma, C, Shebalin, V, Shiu, JG, Simon, F, Solovieva, E, Starič, M, Stottler, ZS, Strube, JF, Sumihama, M, Sumiyoshi, T, Takizawa, M, Tamponi, U, Tanida, K, Tao, Y, Tenchini, F, Uchida, M, Uehara, S, Unno, Y, Uno, S, Van Tonder, R, Varner, G, Vinokurova, A, Vorobyev, V, Wang, CH, Wang, E, Wang, MZ, Wang, P, Watanabe, M, Watanuki, S, Won, E, Xu, X, Yabsley, BD, Yan, W, Ye, H, Yin, JH, Zhang, ZP, Zhilich, V & Zhukova, V 2021, 'Measurement of the resonant and nonresonant branching ratios in Ξc0 → Ξ0K+K-', Physical Review D, vol. 103, no. 11, 112002. https://doi.org/10.1103/PhysRevD.103.112002

@article{59a4b7a2d61d4f1a919e6171650975ca,

title = "Measurement of the resonant and nonresonant branching ratios in Ξc0 → Ξ0K+K-",

abstract = "Using the entire data sample of 980 fb-1 integrated luminosity collected with the Belle detector at the KEKB asymmetric-energy e+e- collider, we present an amplitude analysis measuring the branching fractions of the Cabibbo-allowed, W-exchange resonant decay Ξc0→Ξ0φ(→K+K-) with a polarized φ and the nonresonant decay via a direct process Ξc0→Ξ0K+K-. We present these measurements, relative to the normalization mode Ξ-π+, and find branching ratios B(Ξc0→Ξ0φ(→K+K-))(BΞc0→Ξ-π+)=0.036±0.004(stat.)±0.002(syst.) and B(Ξc0→Ξ0K+K-)B(Ξc0→Ξ-π+)=0.039±0.004(stat.)±0.002(syst.), which suggest that only minor cusping peaks occur in the combinatorial background of ω∗-→Ξ0K- due to these Ξc0 decays.",

author = "McNeil, {J. T.} and J. Yelton and J. Bennett and I. Adachi and K. Adamczyk and Ahn, {J. K.} and H. Aihara and {Al Said}, S. and Asner, {D. M.} and H. Atmacan and V. Aulchenko and T. Aushev and R. Ayad and V. Babu and S. Bahinipati and P. Behera and M. Bessner and T. Bilka and J. Biswal and A. Bobrov and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and M. Campajola and L. Cao and D. {\v C}ervenkov 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 S. Das and N. Dash and {De Nardo}, G. and R. Dhamija and {Di Capua}, F. and Z. Dole{\v Z}al and Dong, {T. V.} and S. Eidelman and T. Ferber and Fulsom, {B. G.} and V. Gaur and N. Gabyshev and A. Garmash and A. Giri and P. Goldenzweig and B. Golob and O. Grzymkowska and Y. Guan and K. Gudkova and C. Hadjivasiliou and K. Hayasaka and H. Hayashii and Hou, {W. S.} and Hsu, {C. L.} and K. Huang and K. Inami and A. Ishikawa and R. Itoh and M. Iwasaki and Jacobs, {W. W.} and Jeon, {H. B.} and S. Jia and Y. Jin and Joo, {K. K.} and Kaliyar, {A. B.} and Kang, {K. H.} and G. Karyan and H. Kichimi and Kim, {B. H.} and Kim, {C. H.} and Kim, {D. Y.} and Kim, {S. H.} and Kim, {Y. K.} and K. Kinoshita and P. Kody{\v s} and T. Konno and S. Korpar and P. Kri{\v Z}an and R. Kroeger and P. Krokovny and T. Kuhr and R. Kulasiri and M. Kumar and K. Kumara and Kwon, {Y. J.} and K. Lalwani and Lee, {S. C.} and J. Li 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 C. Macqueen and M. Masuda and T. Matsuda and D. Matvienko and M. Merola and F. Metzner and K. Miyabayashi and R. Mizuk and Mohanty, {G. B.} and S. Mohanty and Moon, {T. J.} and R. Mussa and M. Nakao and A. Natochii and L. Nayak and M. Nayak and M. Niiyama and Nisar, {N. K.} and S. Nishida and K. Ogawa and S. Ogawa and H. Ono and Y. Onuki and P. Oskin and G. Pakhlova and S. Pardi and H. Park and Park, {S. H.} 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. R{\"o}hrken and A. Rostomyan and N. Rout and G. Russo and D. Sahoo and Y. Sakai and S. Sandilya and A. Sangal and L. Santelj 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 C. Sharma and V. Shebalin and Shiu, {J. G.} and F. Simon and E. Solovieva and M. Stari{\v c} and Stottler, {Z. S.} and Strube, {J. F.} and M. Sumihama and T. Sumiyoshi and M. Takizawa and U. Tamponi and K. Tanida and Y. Tao and F. Tenchini and M. Uchida and S. Uehara and Y. Unno and S. Uno and {Van Tonder}, R. and G. Varner and A. Vinokurova and V. Vorobyev and Wang, {C. H.} and E. Wang and Wang, {M. Z.} and P. Wang and M. Watanabe and S. Watanuki and E. Won and X. Xu and Yabsley, {B. D.} and W. Yan and H. Ye and Yin, {J. H.} and Zhang, {Z. P.} and V. Zhilich and V. Zhukova",

note = "Publisher Copyright: {\textcopyright} 2021 authors. Published by the American Physical Society.",

year = "2021",

month = jun,

day = "1",

doi = "10.1103/PhysRevD.103.112002",

language = "English",

volume = "103",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "11",

}

TY - JOUR

T1 - Measurement of the resonant and nonresonant branching ratios in Ξc0 → Ξ0K+K-

AU - McNeil, J. T.

AU - Yelton, J.

AU - Bennett, J.

AU - Adachi, I.

AU - Adamczyk, K.

AU - Ahn, J. K.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Bahinipati, S.

AU - Behera, P.

AU - Bessner, M.

AU - Bilka, T.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Campajola, M.

AU - Cao, L.

AU - Červenkov, D.

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 - Das, S.

AU - Dash, N.

AU - De Nardo, G.

AU - Dhamija, R.

AU - Di Capua, F.

AU - DoleŽal, Z.

AU - Dong, T. V.

AU - Eidelman, S.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Giri, A.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Grzymkowska, O.

AU - Guan, Y.

AU - Gudkova, K.

AU - Hadjivasiliou, C.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hou, W. S.

AU - Hsu, C. L.

AU - Huang, K.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Jacobs, W. W.

AU - Jeon, H. B.

AU - Jia, S.

AU - Jin, Y.

AU - Joo, K. K.

AU - Kaliyar, A. B.

AU - Kang, K. H.

AU - Karyan, G.

AU - Kichimi, H.

AU - Kim, B. H.

AU - Kim, C. H.

AU - Kim, D. Y.

AU - Kim, S. H.

AU - Kim, Y. K.

AU - Kinoshita, K.

AU - Kodyš, P.

AU - Konno, T.

AU - Korpar, S.

AU - KriŽan, P.

AU - Kroeger, R.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kulasiri, R.

AU - Kumar, M.

AU - Kumara, K.

AU - Kwon, Y. J.

AU - Lalwani, K.

AU - Lee, S. C.

AU - Li, J.

AU - Li, L. K.

AU - Li, Y. B.

AU - Li Gioi, L.

AU - Libby, J.

AU - Lieret, K.

AU - Liptak, Z.

AU - Liventsev, D.

AU - Macqueen, C.

AU - Masuda, M.

AU - Matsuda, T.

AU - Matvienko, D.

AU - Merola, M.

AU - Metzner, F.

AU - Miyabayashi, K.

AU - Mizuk, R.

AU - Mohanty, G. B.

AU - Mohanty, S.

AU - Moon, T. J.

AU - Mussa, R.

AU - Nakao, M.

AU - Natochii, A.

AU - Nayak, L.

AU - Nayak, M.

AU - Niiyama, M.

AU - Nisar, N. K.

AU - Nishida, S.

AU - Ogawa, K.

AU - Ogawa, S.

AU - Ono, H.

AU - Onuki, Y.

AU - Oskin, P.

AU - Pakhlova, G.

AU - Pardi, S.

AU - Park, H.

AU - Park, S. H.

AU - Paul, S.

AU - Pedlar, T. K.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Podobnik, T.

AU - Popov, V.

AU - Prencipe, E.

AU - Prim, M. T.

AU - Röhrken, M.

AU - Rostomyan, A.

AU - Rout, N.

AU - Russo, G.

AU - Sahoo, D.

AU - Sakai, Y.

AU - Sandilya, S.

AU - Sangal, A.

AU - Santelj, L.

AU - Savinov, V.

AU - Schnell, G.

AU - Schueler, J.

AU - Schwanda, C.

AU - Seino, Y.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Sharma, C.

AU - Shebalin, V.

AU - Shiu, J. G.

AU - Simon, F.

AU - Solovieva, E.

AU - Starič, M.

AU - Stottler, Z. S.

AU - Strube, J. F.

AU - Sumihama, M.

AU - Sumiyoshi, T.

AU - Takizawa, M.

AU - Tamponi, U.

AU - Tanida, K.

AU - Tao, Y.

AU - Tenchini, F.

AU - Uchida, M.

AU - Uehara, S.

AU - Unno, Y.

AU - Uno, S.

AU - Van Tonder, R.

AU - Varner, G.

AU - Vinokurova, A.

AU - Vorobyev, V.

AU - Wang, C. H.

AU - Wang, E.

AU - Wang, M. Z.

AU - Wang, P.

AU - Watanabe, M.

AU - Watanuki, S.

AU - Won, E.

AU - Xu, X.

AU - Yabsley, B. D.

AU - Yan, W.

AU - Ye, H.

AU - Yin, J. H.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhukova, V.

PY - 2021/6/1

Y1 - 2021/6/1

N2 - Using the entire data sample of 980 fb-1 integrated luminosity collected with the Belle detector at the KEKB asymmetric-energy e+e- collider, we present an amplitude analysis measuring the branching fractions of the Cabibbo-allowed, W-exchange resonant decay Ξc0→Ξ0φ(→K+K-) with a polarized φ and the nonresonant decay via a direct process Ξc0→Ξ0K+K-. We present these measurements, relative to the normalization mode Ξ-π+, and find branching ratios B(Ξc0→Ξ0φ(→K+K-))(BΞc0→Ξ-π+)=0.036±0.004(stat.)±0.002(syst.) and B(Ξc0→Ξ0K+K-)B(Ξc0→Ξ-π+)=0.039±0.004(stat.)±0.002(syst.), which suggest that only minor cusping peaks occur in the combinatorial background of ω∗-→Ξ0K- due to these Ξc0 decays.

AB - Using the entire data sample of 980 fb-1 integrated luminosity collected with the Belle detector at the KEKB asymmetric-energy e+e- collider, we present an amplitude analysis measuring the branching fractions of the Cabibbo-allowed, W-exchange resonant decay Ξc0→Ξ0φ(→K+K-) with a polarized φ and the nonresonant decay via a direct process Ξc0→Ξ0K+K-. We present these measurements, relative to the normalization mode Ξ-π+, and find branching ratios B(Ξc0→Ξ0φ(→K+K-))(BΞc0→Ξ-π+)=0.036±0.004(stat.)±0.002(syst.) and B(Ξc0→Ξ0K+K-)B(Ξc0→Ξ-π+)=0.039±0.004(stat.)±0.002(syst.), which suggest that only minor cusping peaks occur in the combinatorial background of ω∗-→Ξ0K- due to these Ξc0 decays.

UR - http://www.scopus.com/inward/record.url?scp=85108721907&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.103.112002

DO - 10.1103/PhysRevD.103.112002

M3 - Article

AN - SCOPUS:85108721907

SN - 2470-0010

VL - 103

JO - Physical Review D

JF - Physical Review D

IS - 11

M1 - 112002

ER -

Measurement of the resonant and nonresonant branching ratios in Ξc0 → Ξ0K+K-

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