Observation of two resonancelike structures: Observation of two resonancelike structures in the Ic1 mass distribution in exclusive BA0K-I+Ic1

R. Mizuk; R. Chistov; I. Adachi; H. Aihara; K. Arinstein; V. Aulchenko; T. Aushev; A. M. Bakich; V. Balagura; E. Barberio; A. Bay; V. Bhardwaj; U. Bitenc; A. Bondar; A. Bozek; M. Bračko; J. Brodzicka; T. E. Browder; M. C. Chang; P. Chang; A. Chen; K. F. Chen; B. G. Cheon; C. C. Chiang; I. S. Cho; S. K. Choi; Y. Choi; J. Dalseno; M. Danilov; A. Drutskoy; S. Eidelman; D. Epifanov; P. Goldenzweig; B. Golob; H. Ha; J. Haba; K. Hayasaka; H. Hayashii; M. Hazumi; Y. Hoshi; W. S. Hou; Y. B. Hsiung; H. J. Hyun; T. Iijima; K. Inami; A. Ishikawa; H. Ishino; R. Itoh; M. Iwasaki; Y. Iwasaki; D. H. Kah; H. Kaji; J. H. Kang; T. Kawasaki; H. Kichimi; H. J. Kim; H. O. Kim; Y. I. Kim; Y. J. Kim; K. Kinoshita; S. Korpar; P. KriŽan; P. Krokovny; R. Kumar; A. Kuzmin; Y. J. Kwon; S. H. Kyeong; J. S. Lange; J. S. Lee; M. J. Lee; S. W. Lin; C. Liu; Y. Liu; D. Liventsev; F. Mandl; S. McOnie; K. Miyabayashi; H. Miyata; Y. Miyazaki; E. Nakano; M. Nakao; H. Nakazawa; S. Nishida; O. Nitoh; S. Ogawa; T. Ohshima; S. Okuno; S. L. Olsen; H. Ozaki; P. Pakhlov; G. Pakhlova; H. Palka; C. W. Park; H. Park; H. K. Park; L. S. Peak; R. Pestotnik; L. E. Piilonen; A. Poluektov; H. Sahoo; Y. Sakai; O. Schneider; A. J. Schwartz; K. Senyo; J. G. Shiu; B. Shwartz; J. B. Singh; A. Sokolov; A. Somov; S. Stanič; M. Starič; T. Sumiyoshi; M. Tanaka; G. N. Taylor; Y. Teramoto; I. Tikhomirov; K. Trabelsi; S. Uehara; T. Uglov; Y. Unno; S. Uno; P. Urquijo; Y. Usov; G. Varner; K. E. Varvell; K. Vervink; C. H. Wang; M. Z. Wang; P. Wang; X. L. Wang; Y. Watanabe; J. Wicht; E. Won; B. D. Yabsley; Y. Yamashita; C. C. Zhang; Z. P. Zhang; V. Zhilich; V. Zhulanov; T. Zivko; A. Zupanc; O. Zyukova

doi:10.1103/PhysRevD.78.072004

Observation of two resonancelike structures: Observation of two resonancelike structures in the Ic1 mass distribution in exclusive BA0K-I+Ic1

R. Mizuk, R. Chistov, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, M. C. Chang, P. ChangA. Chen, K. F. Chen, B. G. Cheon, C. C. Chiang, I. S. Cho, S. K. Choi, Y. Choi, J. Dalseno, M. Danilov, A. Drutskoy, S. Eidelman, D. Epifanov, P. Goldenzweig, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, H. Kaji, J. H. Kang, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. KriŽan, P. Krokovny, R. Kumar, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, J. S. Lange, J. S. Lee, M. J. Lee, S. W. Lin, C. Liu, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, E. Nakano, M. Nakao, H. Nakazawa, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, A. J. Schwartz, K. Senyo, J. G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanič, M. Starič, T. Sumiyoshi, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, J. Wicht, E. Won, B. D. Yabsley, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

Department of Physics

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

261 Citations (Scopus)

Abstract

We report the first observation of two resonancelike structures in the π⁺χ_c1 invariant mass distribution near 4.1GeV/c2 in exclusive B^¯0→K^-π⁺χ_c1 decays. From a Dalitz plot analysis in which the π⁺χ_c1 mass structures are represented by Breit-Wigner resonance amplitudes, we determine masses and widths of: M₁=(4051±14-41+20)MeV/c2, Γ₁=(82-17-22+21+47)MeV, M₂=(4248-29-35+44+180)MeV/c2, and Γ₂=(177-39-61+54+316)MeV; and product branching fractions of B(B^¯0→K^-Z1,2+)×B(Z1,2+→π⁺χ_c1)=(3.0-0.8-1.6+1.5+3.7)×10^-5 and (4.0-0.9-0.5+2.3+19.7)×10^-5, respectively. Here the first uncertainty is statistical, the second is systematic. The significance of each of the π⁺χ_c1 structures exceeds 5σ, including the systematic uncertainty from various fit models. This analysis is based on 657×106 BB¯ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e⁺e^- collider.

Original language	English
Article number	072004
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	78
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.78.072004
Publication status	Published - 2008 Oct 10

Bibliographical note

Publisher Copyright:
© 2008 The American Physical Society.

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.78.072004

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Mizuk, R., Chistov, R., Adachi, I., Aihara, H., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A. M., Balagura, V., Barberio, E., Bay, A., Bhardwaj, V., Bitenc, U., Bondar, A., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chang, M. C., ... Zyukova, O. (2008). Observation of two resonancelike structures: Observation of two resonancelike structures in the Ic1 mass distribution in exclusive BA0K-I+Ic1. Physical Review D - Particles, Fields, Gravitation and Cosmology, 78(7), Article 072004. https://doi.org/10.1103/PhysRevD.78.072004

Mizuk, R, Chistov, R, Adachi, I, Aihara, H, Arinstein, K, Aulchenko, V, Aushev, T, Bakich, AM, Balagura, V, Barberio, E, Bay, A, Bhardwaj, V, Bitenc, U, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Browder, TE, Chang, MC, Chang, P, Chen, A, Chen, KF, Cheon, BG, Chiang, CC, Cho, IS, Choi, SK, Choi, Y, Dalseno, J, Danilov, M, Drutskoy, A, Eidelman, S, Epifanov, D, Goldenzweig, P, Golob, B, Ha, H, Haba, J, Hayasaka, K, Hayashii, H, Hazumi, M, Hoshi, Y, Hou, WS, Hsiung, YB, Hyun, HJ, Iijima, T, Inami, K, Ishikawa, A, Ishino, H, Itoh, R, Iwasaki, M, Iwasaki, Y, Kah, DH, Kaji, H, Kang, JH, Kawasaki, T, Kichimi, H, Kim, HJ, Kim, HO, Kim, YI, Kim, YJ, Kinoshita, K, Korpar, S, KriŽan, P, Krokovny, P, Kumar, R, Kuzmin, A, Kwon, YJ, Kyeong, SH, Lange, JS, Lee, JS, Lee, MJ, Lin, SW, Liu, C, Liu, Y, Liventsev, D, Mandl, F, McOnie, S, Miyabayashi, K, Miyata, H, Miyazaki, Y, Nakano, E, Nakao, M, Nakazawa, H, Nishida, S, Nitoh, O, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Ozaki, H, Pakhlov, P, Pakhlova, G, Palka, H, Park, CW, Park, H, Park, HK, Peak, LS, Pestotnik, R, Piilonen, LE, Poluektov, A, Sahoo, H, Sakai, Y, Schneider, O, Schwartz, AJ, Senyo, K, Shiu, JG, Shwartz, B, Singh, JB, Sokolov, A, Somov, A, Stanič, S, Starič, M, Sumiyoshi, T, Tanaka, M, Taylor, GN, Teramoto, Y, Tikhomirov, I, Trabelsi, K, Uehara, S, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Usov, Y, Varner, G, Varvell, KE, Vervink, K, Wang, CH, Wang, MZ, Wang, P, Wang, XL, Watanabe, Y, Wicht, J, Won, E, Yabsley, BD, Yamashita, Y, Zhang, CC, Zhang, ZP, Zhilich, V, Zhulanov, V, Zivko, T, Zupanc, A & Zyukova, O 2008, 'Observation of two resonancelike structures: Observation of two resonancelike structures in the Ic1 mass distribution in exclusive BA0K-I+Ic1', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 78, no. 7, 072004. https://doi.org/10.1103/PhysRevD.78.072004

@article{e2e209163e1e4c1bba4de4bc211a0fca,

title = "Observation of two resonancelike structures: Observation of two resonancelike structures in the Ic1 mass distribution in exclusive BA0K-I+Ic1",

abstract = "We report the first observation of two resonancelike structures in the π+χc1 invariant mass distribution near 4.1GeV/c2 in exclusive B¯0→K-π+χc1 decays. From a Dalitz plot analysis in which the π+χc1 mass structures are represented by Breit-Wigner resonance amplitudes, we determine masses and widths of: M1=(4051±14-41+20)MeV/c2, Γ1=(82-17-22+21+47)MeV, M2=(4248-29-35+44+180)MeV/c2, and Γ2=(177-39-61+54+316)MeV; and product branching fractions of B(B¯0→K-Z1,2+)×B(Z1,2+→π+χc1)=(3.0-0.8-1.6+1.5+3.7)×10-5 and (4.0-0.9-0.5+2.3+19.7)×10-5, respectively. Here the first uncertainty is statistical, the second is systematic. The significance of each of the π+χc1 structures exceeds 5σ, including the systematic uncertainty from various fit models. This analysis is based on 657×106 BB¯ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.",

author = "R. Mizuk and R. Chistov and I. Adachi and H. Aihara and K. Arinstein and V. Aulchenko and T. Aushev and Bakich, {A. M.} and V. Balagura and E. Barberio and A. Bay and V. Bhardwaj and U. Bitenc and A. Bondar and A. Bozek and M. Bra{\v c}ko and J. Brodzicka and Browder, {T. E.} and Chang, {M. C.} and P. Chang and A. Chen and Chen, {K. F.} and Cheon, {B. G.} and Chiang, {C. C.} and Cho, {I. S.} and Choi, {S. K.} and Y. Choi and J. Dalseno and M. Danilov and A. Drutskoy and S. Eidelman and D. Epifanov and P. Goldenzweig and B. Golob and H. Ha and J. Haba and K. Hayasaka and H. Hayashii and M. Hazumi and Y. Hoshi and Hou, {W. S.} and Hsiung, {Y. B.} and Hyun, {H. J.} and T. Iijima and K. Inami and A. Ishikawa and H. Ishino and R. Itoh and M. Iwasaki and Y. Iwasaki and Kah, {D. H.} and H. Kaji and Kang, {J. H.} and T. Kawasaki and H. Kichimi and Kim, {H. J.} and Kim, {H. O.} and Kim, {Y. I.} and Kim, {Y. J.} and K. Kinoshita and S. Korpar and P. Kri{\v Z}an and P. Krokovny and R. Kumar and A. Kuzmin and Kwon, {Y. J.} and Kyeong, {S. H.} and Lange, {J. S.} and Lee, {J. S.} and Lee, {M. J.} and Lin, {S. W.} and C. Liu and Y. Liu and D. Liventsev and F. Mandl and S. McOnie and K. Miyabayashi and H. Miyata and Y. Miyazaki and E. Nakano and M. Nakao and H. Nakazawa and S. Nishida and O. Nitoh and S. Ogawa and T. Ohshima and S. Okuno and Olsen, {S. L.} and H. Ozaki and P. Pakhlov and G. Pakhlova and H. Palka and Park, {C. W.} and H. Park and Park, {H. K.} and Peak, {L. S.} and R. Pestotnik and Piilonen, {L. E.} and A. Poluektov and H. Sahoo and Y. Sakai and O. Schneider and Schwartz, {A. J.} and K. Senyo and Shiu, {J. G.} and B. Shwartz and Singh, {J. B.} and A. Sokolov and A. Somov and S. Stani{\v c} and M. Stari{\v c} and T. Sumiyoshi and M. Tanaka and Taylor, {G. N.} and Y. Teramoto and I. Tikhomirov and K. Trabelsi and S. Uehara and T. Uglov and Y. Unno and S. Uno and P. Urquijo and Y. Usov and G. Varner and Varvell, {K. E.} and K. Vervink and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and Wang, {X. L.} and Y. Watanabe and J. Wicht and E. Won and Yabsley, {B. D.} and Y. Yamashita and Zhang, {C. C.} and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov and T. Zivko and A. Zupanc and O. Zyukova",

note = "Publisher Copyright: {\textcopyright} 2008 The American Physical Society.",

year = "2008",

month = oct,

day = "10",

doi = "10.1103/PhysRevD.78.072004",

language = "English",

volume = "78",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Institute of Physics Publising LLC",

number = "7",

}

TY - JOUR

T1 - Observation of two resonancelike structures

T2 - Observation of two resonancelike structures in the Ic1 mass distribution in exclusive BA0K-I+Ic1

AU - Mizuk, R.

AU - Chistov, R.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Barberio, E.

AU - Bay, A.

AU - Bhardwaj, V.

AU - Bitenc, U.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Brodzicka, J.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chang, P.

AU - Chen, A.

AU - Chen, K. F.

AU - Cheon, B. G.

AU - Chiang, C. C.

AU - Cho, I. S.

AU - Choi, S. K.

AU - Choi, Y.

AU - Dalseno, J.

AU - Danilov, M.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Ha, H.

AU - Haba, J.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Ishino, H.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Kah, D. H.

AU - Kaji, H.

AU - Kang, J. H.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, Y. I.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Korpar, S.

AU - KriŽan, P.

AU - Krokovny, P.

AU - Kumar, R.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Kyeong, S. H.

AU - Lange, J. S.

AU - Lee, J. S.

AU - Lee, M. J.

AU - Lin, S. W.

AU - Liu, C.

AU - Liu, Y.

AU - Liventsev, D.

AU - Mandl, F.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Nishida, S.

AU - Nitoh, O.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Palka, H.

AU - Park, C. W.

AU - Park, H.

AU - Park, H. K.

AU - Peak, L. S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Poluektov, A.

AU - Sahoo, H.

AU - Sakai, Y.

AU - Schneider, O.

AU - Schwartz, A. J.

AU - Senyo, K.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Singh, J. B.

AU - Sokolov, A.

AU - Somov, A.

AU - Stanič, S.

AU - Starič, M.

AU - Sumiyoshi, T.

AU - Tanaka, M.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tikhomirov, I.

AU - Trabelsi, K.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Usov, Y.

AU - Varner, G.

AU - Varvell, K. E.

AU - Vervink, K.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, Y.

AU - Wicht, J.

AU - Won, E.

AU - Yabsley, B. D.

AU - Yamashita, Y.

AU - Zhang, C. C.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zivko, T.

AU - Zupanc, A.

AU - Zyukova, O.

PY - 2008/10/10

Y1 - 2008/10/10

N2 - We report the first observation of two resonancelike structures in the π+χc1 invariant mass distribution near 4.1GeV/c2 in exclusive B¯0→K-π+χc1 decays. From a Dalitz plot analysis in which the π+χc1 mass structures are represented by Breit-Wigner resonance amplitudes, we determine masses and widths of: M1=(4051±14-41+20)MeV/c2, Γ1=(82-17-22+21+47)MeV, M2=(4248-29-35+44+180)MeV/c2, and Γ2=(177-39-61+54+316)MeV; and product branching fractions of B(B¯0→K-Z1,2+)×B(Z1,2+→π+χc1)=(3.0-0.8-1.6+1.5+3.7)×10-5 and (4.0-0.9-0.5+2.3+19.7)×10-5, respectively. Here the first uncertainty is statistical, the second is systematic. The significance of each of the π+χc1 structures exceeds 5σ, including the systematic uncertainty from various fit models. This analysis is based on 657×106 BB¯ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

AB - We report the first observation of two resonancelike structures in the π+χc1 invariant mass distribution near 4.1GeV/c2 in exclusive B¯0→K-π+χc1 decays. From a Dalitz plot analysis in which the π+χc1 mass structures are represented by Breit-Wigner resonance amplitudes, we determine masses and widths of: M1=(4051±14-41+20)MeV/c2, Γ1=(82-17-22+21+47)MeV, M2=(4248-29-35+44+180)MeV/c2, and Γ2=(177-39-61+54+316)MeV; and product branching fractions of B(B¯0→K-Z1,2+)×B(Z1,2+→π+χc1)=(3.0-0.8-1.6+1.5+3.7)×10-5 and (4.0-0.9-0.5+2.3+19.7)×10-5, respectively. Here the first uncertainty is statistical, the second is systematic. The significance of each of the π+χc1 structures exceeds 5σ, including the systematic uncertainty from various fit models. This analysis is based on 657×106 BB¯ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

UR - http://www.scopus.com/inward/record.url?scp=84897664337&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.78.072004

DO - 10.1103/PhysRevD.78.072004

M3 - Article

AN - SCOPUS:84897664337

SN - 1550-7998

VL - 78

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 7

M1 - 072004

ER -

Observation of two resonancelike structures: Observation of two resonancelike structures in the Ic1 mass distribution in exclusive BA0K-I+Ic1

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