Observation of two charged bottomoniumlike resonances in Y(5S) decays

A. Bondar, A. Garmash, R. Mizuk, D. Santel, K. Kinoshita, I. Adachi, H. Aihara, K. Arinstein, D. M. Asner, T. Aushev, T. Aziz, A. M. Bakich, E. Barberio, K. Belous, V. Bhardwaj, M. Bischofberger, A. Bozek, M. Bračko, T. E. Browder, M. C. ChangP. Chang, A. Chen, B. G. Cheon, K. Chilikin, R. Chistov, I. S. Cho, K. Cho, S. K. Choi, Y. Choi, J. Dalseno, M. Danilov, Z. Doleal, A. Drutskoy, S. Eidelman, D. Epifanov, J. E. Fast, V. Gaur, N. Gabyshev, Y. M. Goh, B. Golob, J. Haba, T. Hara, K. Hayasaka, Y. Hoshi, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, M. Iwabuchi, Y. Iwasaki, T. Iwashita, T. Julius, J. H. Kang, T. Kawasaki, H. Kichimi, C. Kiesling, J. B. Kim, J. H. Kim, K. T. Kim, M. J. Kim, Y. J. Kim, B. R. Ko, N. Kobayashi, S. Koblitz, P. Kody, S. Korpar, P. Krian, T. Kuhr, R. Kumar, T. Kumita, A. Kuzmin, J. S. Lange, S. H. Lee, J. Li, Y. Li, J. Libby, C. Liu, Z. Q. Liu, D. Liventsev, R. Louvot, D. Matvienko, S. McOnie, H. Miyata, Y. Miyazaki, G. B. Mohanty, A. Moll, N. Muramatsu, R. Mussa, M. Nakao, Z. Natkaniec, S. Neubauer, M. Niiyama, S. Nishida, K. Nishimura, O. Nitoh, T. Nozaki, S. L. Olsen, Y. Onuki, P. Pakhlov, G. Pakhlova, H. Park, H. K. Park, T. K. Pedlar, M. Petrič, L. E. Piilonen, A. Poluektov, M. Prim, M. Ritter, M. Röhrken, S. Ryu, H. Sahoo, Y. Sakai, D. Santel, T. Sanuki, O. Schneider, C. Schwanda, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, T. A. Shibata, J. G. Shiu, B. Shwartz, F. Simon, P. Smerkol, Y. S. Sohn, A. Sokolov, E. Solovieva, M. Starič, M. Sumihama, T. Sumiyoshi, S. Tanaka, G. Tatishvili, Y. Teramoto, I. Tikhomirov, M. Uchida, S. Uehara, T. Uglov, Y. Ushiroda, S. E. Vahsen, G. Varner, A. Vinokurova, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, K. M. Williams, Eunil Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, C. Z. Yuan, Y. Yusa, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, O. Zyukova

Research output: Contribution to journalArticle

386 Citations (Scopus)

Abstract

We report the observation of two narrow structures in the mass spectra of the π ±Υ(nS) (n=1, 2, 3) and π ±h b(mP) (m=1, 2) pairs that are produced in association with a single charged pion in Υ(5S) decays. The measured masses and widths of the two structures averaged over the five final states are M 1=(10607.2±2.0)MeV/c2, Γ 1=(18.4±2.4) MeV, and M 2=(10652.2±1.5)MeV/c2, Γ 2=(11. 5±2.2)MeV. The results are obtained with a 121.4fb -1 data sample collected with the Belle detector in the vicinity of the Υ(5S) resonance at the KEKB asymmetric-energy e +e - collider.

Original languageEnglish
Article number122001
JournalPhysical Review Letters
Volume108
Issue number12
DOIs
Publication statusPublished - 2012 Mar 20

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mass spectra
pions
detectors
decay
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Bondar, A., Garmash, A., Mizuk, R., Santel, D., Kinoshita, K., Adachi, I., ... Zyukova, O. (2012). Observation of two charged bottomoniumlike resonances in Y(5S) decays. Physical Review Letters, 108(12), [122001]. https://doi.org/10.1103/PhysRevLett.108.122001

Observation of two charged bottomoniumlike resonances in Y(5S) decays. / Bondar, A.; Garmash, A.; Mizuk, R.; Santel, D.; Kinoshita, K.; Adachi, I.; Aihara, H.; Arinstein, K.; Asner, D. M.; Aushev, T.; Aziz, T.; Bakich, A. M.; Barberio, E.; Belous, K.; Bhardwaj, V.; Bischofberger, M.; Bozek, A.; Bračko, M.; Browder, T. E.; Chang, M. C.; Chang, P.; Chen, A.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, I. S.; Cho, K.; Choi, S. K.; Choi, Y.; Dalseno, J.; Danilov, M.; Doleal, Z.; Drutskoy, A.; Eidelman, S.; Epifanov, D.; Fast, J. E.; Gaur, V.; Gabyshev, N.; Goh, Y. M.; Golob, B.; Haba, J.; Hara, T.; Hayasaka, K.; Hoshi, Y.; Hyun, H. J.; Iijima, T.; Inami, K.; Ishikawa, A.; Iwabuchi, M.; Iwasaki, Y.; Iwashita, T.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kichimi, H.; Kiesling, C.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, M. J.; Kim, Y. J.; Ko, B. R.; Kobayashi, N.; Koblitz, S.; Kody, P.; Korpar, S.; Krian, P.; Kuhr, T.; Kumar, R.; Kumita, T.; Kuzmin, A.; Lange, J. S.; Lee, S. H.; Li, J.; Li, Y.; Libby, J.; Liu, C.; Liu, Z. Q.; Liventsev, D.; Louvot, R.; Matvienko, D.; McOnie, S.; Miyata, H.; Miyazaki, Y.; Mohanty, G. B.; Moll, A.; Muramatsu, N.; Mussa, R.; Nakao, M.; Natkaniec, Z.; Neubauer, S.; Niiyama, M.; Nishida, S.; Nishimura, K.; Nitoh, O.; Nozaki, T.; Olsen, S. L.; Onuki, Y.; Pakhlov, P.; Pakhlova, G.; Park, H.; Park, H. K.; Pedlar, T. K.; Petrič, M.; Piilonen, L. E.; Poluektov, A.; Prim, M.; Ritter, M.; Röhrken, M.; Ryu, S.; Sahoo, H.; Sakai, Y.; Santel, D.; Sanuki, T.; Schneider, O.; Schwanda, C.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shebalin, V.; Shibata, T. A.; Shiu, J. G.; Shwartz, B.; Simon, F.; Smerkol, P.; Sohn, Y. S.; Sokolov, A.; Solovieva, E.; Starič, M.; Sumihama, M.; Sumiyoshi, T.; Tanaka, S.; Tatishvili, G.; Teramoto, Y.; Tikhomirov, I.; Uchida, M.; Uehara, S.; Uglov, T.; Ushiroda, Y.; Vahsen, S. E.; Varner, G.; Vinokurova, A.; Wang, C. H.; Wang, M. Z.; Wang, P.; Wang, X. L.; Watanabe, Y.; Williams, K. M.; Won, Eunil; Yabsley, B. D.; Yamashita, Y.; Yamauchi, M.; Yuan, C. Z.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.; Zyukova, O.

In: Physical Review Letters, Vol. 108, No. 12, 122001, 20.03.2012.

Research output: Contribution to journalArticle

Bondar, A, Garmash, A, Mizuk, R, Santel, D, Kinoshita, K, Adachi, I, Aihara, H, Arinstein, K, Asner, DM, Aushev, T, Aziz, T, Bakich, AM, Barberio, E, Belous, K, Bhardwaj, V, Bischofberger, M, Bozek, A, Bračko, M, Browder, TE, Chang, MC, Chang, P, Chen, A, Cheon, BG, Chilikin, K, Chistov, R, Cho, IS, Cho, K, Choi, SK, Choi, Y, Dalseno, J, Danilov, M, Doleal, Z, Drutskoy, A, Eidelman, S, Epifanov, D, Fast, JE, Gaur, V, Gabyshev, N, Goh, YM, Golob, B, Haba, J, Hara, T, Hayasaka, K, Hoshi, Y, Hyun, HJ, Iijima, T, Inami, K, Ishikawa, A, Iwabuchi, M, Iwasaki, Y, Iwashita, T, Julius, T, Kang, JH, Kawasaki, T, Kichimi, H, Kiesling, C, Kim, JB, Kim, JH, Kim, KT, Kim, MJ, Kim, YJ, Ko, BR, Kobayashi, N, Koblitz, S, Kody, P, Korpar, S, Krian, P, Kuhr, T, Kumar, R, Kumita, T, Kuzmin, A, Lange, JS, Lee, SH, Li, J, Li, Y, Libby, J, Liu, C, Liu, ZQ, Liventsev, D, Louvot, R, Matvienko, D, McOnie, S, Miyata, H, Miyazaki, Y, Mohanty, GB, Moll, A, Muramatsu, N, Mussa, R, Nakao, M, Natkaniec, Z, Neubauer, S, Niiyama, M, Nishida, S, Nishimura, K, Nitoh, O, Nozaki, T, Olsen, SL, Onuki, Y, Pakhlov, P, Pakhlova, G, Park, H, Park, HK, Pedlar, TK, Petrič, M, Piilonen, LE, Poluektov, A, Prim, M, Ritter, M, Röhrken, M, Ryu, S, Sahoo, H, Sakai, Y, Santel, D, Sanuki, T, Schneider, O, Schwanda, C, Senyo, K, Sevior, ME, Shapkin, M, Shebalin, V, Shibata, TA, Shiu, JG, Shwartz, B, Simon, F, Smerkol, P, Sohn, YS, Sokolov, A, Solovieva, E, Starič, M, Sumihama, M, Sumiyoshi, T, Tanaka, S, Tatishvili, G, Teramoto, Y, Tikhomirov, I, Uchida, M, Uehara, S, Uglov, T, Ushiroda, Y, Vahsen, SE, Varner, G, Vinokurova, A, Wang, CH, Wang, MZ, Wang, P, Wang, XL, Watanabe, Y, Williams, KM, Won, E, Yabsley, BD, Yamashita, Y, Yamauchi, M, Yuan, CZ, Yusa, Y, Zhang, ZP, Zhilich, V, Zhulanov, V, Zupanc, A & Zyukova, O 2012, 'Observation of two charged bottomoniumlike resonances in Y(5S) decays', Physical Review Letters, vol. 108, no. 12, 122001. https://doi.org/10.1103/PhysRevLett.108.122001
Bondar A, Garmash A, Mizuk R, Santel D, Kinoshita K, Adachi I et al. Observation of two charged bottomoniumlike resonances in Y(5S) decays. Physical Review Letters. 2012 Mar 20;108(12). 122001. https://doi.org/10.1103/PhysRevLett.108.122001
Bondar, A. ; Garmash, A. ; Mizuk, R. ; Santel, D. ; Kinoshita, K. ; Adachi, I. ; Aihara, H. ; Arinstein, K. ; Asner, D. M. ; Aushev, T. ; Aziz, T. ; Bakich, A. M. ; Barberio, E. ; Belous, K. ; Bhardwaj, V. ; Bischofberger, M. ; Bozek, A. ; Bračko, M. ; Browder, T. E. ; Chang, M. C. ; Chang, P. ; Chen, A. ; Cheon, B. G. ; Chilikin, K. ; Chistov, R. ; Cho, I. S. ; Cho, K. ; Choi, S. K. ; Choi, Y. ; Dalseno, J. ; Danilov, M. ; Doleal, Z. ; Drutskoy, A. ; Eidelman, S. ; Epifanov, D. ; Fast, J. E. ; Gaur, V. ; Gabyshev, N. ; Goh, Y. M. ; Golob, B. ; Haba, J. ; Hara, T. ; Hayasaka, K. ; Hoshi, Y. ; Hyun, H. J. ; Iijima, T. ; Inami, K. ; Ishikawa, A. ; Iwabuchi, M. ; Iwasaki, Y. ; Iwashita, T. ; Julius, T. ; Kang, J. H. ; Kawasaki, T. ; Kichimi, H. ; Kiesling, C. ; Kim, J. B. ; Kim, J. H. ; Kim, K. T. ; Kim, M. J. ; Kim, Y. J. ; Ko, B. R. ; Kobayashi, N. ; Koblitz, S. ; Kody, P. ; Korpar, S. ; Krian, P. ; Kuhr, T. ; Kumar, R. ; Kumita, T. ; Kuzmin, A. ; Lange, J. S. ; Lee, S. H. ; Li, J. ; Li, Y. ; Libby, J. ; Liu, C. ; Liu, Z. Q. ; Liventsev, D. ; Louvot, R. ; Matvienko, D. ; McOnie, S. ; Miyata, H. ; Miyazaki, Y. ; Mohanty, G. B. ; Moll, A. ; Muramatsu, N. ; Mussa, R. ; Nakao, M. ; Natkaniec, Z. ; Neubauer, S. ; Niiyama, M. ; Nishida, S. ; Nishimura, K. ; Nitoh, O. ; Nozaki, T. ; Olsen, S. L. ; Onuki, Y. ; Pakhlov, P. ; Pakhlova, G. ; Park, H. ; Park, H. K. ; Pedlar, T. K. ; Petrič, M. ; Piilonen, L. E. ; Poluektov, A. ; Prim, M. ; Ritter, M. ; Röhrken, M. ; Ryu, S. ; Sahoo, H. ; Sakai, Y. ; Santel, D. ; Sanuki, T. ; Schneider, O. ; Schwanda, C. ; Senyo, K. ; Sevior, M. E. ; Shapkin, M. ; Shebalin, V. ; Shibata, T. A. ; Shiu, J. G. ; Shwartz, B. ; Simon, F. ; Smerkol, P. ; Sohn, Y. S. ; Sokolov, A. ; Solovieva, E. ; Starič, M. ; Sumihama, M. ; Sumiyoshi, T. ; Tanaka, S. ; Tatishvili, G. ; Teramoto, Y. ; Tikhomirov, I. ; Uchida, M. ; Uehara, S. ; Uglov, T. ; Ushiroda, Y. ; Vahsen, S. E. ; Varner, G. ; Vinokurova, A. ; Wang, C. H. ; Wang, M. Z. ; Wang, P. ; Wang, X. L. ; Watanabe, Y. ; Williams, K. M. ; Won, Eunil ; Yabsley, B. D. ; Yamashita, Y. ; Yamauchi, M. ; Yuan, C. Z. ; Yusa, Y. ; Zhang, Z. P. ; Zhilich, V. ; Zhulanov, V. ; Zupanc, A. ; Zyukova, O. / Observation of two charged bottomoniumlike resonances in Y(5S) decays. In: Physical Review Letters. 2012 ; Vol. 108, No. 12.
@article{9b773ee615bb4c78924192e3c8134813,
title = "Observation of two charged bottomoniumlike resonances in Y(5S) decays",
abstract = "We report the observation of two narrow structures in the mass spectra of the π ±Υ(nS) (n=1, 2, 3) and π ±h b(mP) (m=1, 2) pairs that are produced in association with a single charged pion in Υ(5S) decays. The measured masses and widths of the two structures averaged over the five final states are M 1=(10607.2±2.0)MeV/c2, Γ 1=(18.4±2.4) MeV, and M 2=(10652.2±1.5)MeV/c2, Γ 2=(11. 5±2.2)MeV. The results are obtained with a 121.4fb -1 data sample collected with the Belle detector in the vicinity of the Υ(5S) resonance at the KEKB asymmetric-energy e +e - collider.",
author = "A. Bondar and A. Garmash and R. Mizuk and D. Santel and K. Kinoshita and I. Adachi and H. Aihara and K. Arinstein and Asner, {D. M.} and T. Aushev and T. Aziz and Bakich, {A. M.} and E. Barberio and K. Belous and V. Bhardwaj and M. Bischofberger and A. Bozek and M. Bračko and Browder, {T. E.} and Chang, {M. C.} and P. Chang and A. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and Cho, {I. S.} and K. Cho and Choi, {S. K.} and Y. Choi and J. Dalseno and M. Danilov and Z. Doleal and A. Drutskoy and S. Eidelman and D. Epifanov and Fast, {J. E.} and V. Gaur and N. Gabyshev and Goh, {Y. M.} and B. Golob and J. Haba and T. Hara and K. Hayasaka and Y. Hoshi and Hyun, {H. J.} and T. Iijima and K. Inami and A. Ishikawa and M. Iwabuchi and Y. Iwasaki and T. Iwashita and T. Julius and Kang, {J. H.} and T. Kawasaki and H. Kichimi and C. Kiesling and Kim, {J. B.} and Kim, {J. H.} and Kim, {K. T.} and Kim, {M. J.} and Kim, {Y. J.} and Ko, {B. R.} and N. Kobayashi and S. Koblitz and P. Kody and S. Korpar and P. Krian and T. Kuhr and R. Kumar and T. Kumita and A. Kuzmin and Lange, {J. S.} and Lee, {S. H.} and J. Li and Y. Li and J. Libby and C. Liu and Liu, {Z. Q.} and D. Liventsev and R. Louvot and D. Matvienko and S. McOnie and H. Miyata and Y. Miyazaki and Mohanty, {G. B.} and A. Moll and N. Muramatsu and R. Mussa and M. Nakao and Z. Natkaniec and S. Neubauer and M. Niiyama and S. Nishida and K. Nishimura and O. Nitoh and T. Nozaki and Olsen, {S. L.} and Y. Onuki and P. Pakhlov and G. Pakhlova and H. Park and Park, {H. K.} and Pedlar, {T. K.} and M. Petrič and Piilonen, {L. E.} and A. Poluektov and M. Prim and M. Ritter and M. R{\"o}hrken and S. Ryu and H. Sahoo and Y. Sakai and D. Santel and T. Sanuki and O. Schneider and C. Schwanda and K. Senyo and Sevior, {M. E.} and M. Shapkin and V. Shebalin and Shibata, {T. A.} and Shiu, {J. G.} and B. Shwartz and F. Simon and P. Smerkol and Sohn, {Y. S.} and A. Sokolov and E. Solovieva and M. Starič and M. Sumihama and T. Sumiyoshi and S. Tanaka and G. Tatishvili and Y. Teramoto and I. Tikhomirov and M. Uchida and S. Uehara and T. Uglov and Y. Ushiroda and Vahsen, {S. E.} and G. Varner and A. Vinokurova and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and Wang, {X. L.} and Y. Watanabe and Williams, {K. M.} and Eunil Won and Yabsley, {B. D.} and Y. Yamashita and M. Yamauchi and Yuan, {C. Z.} and Y. Yusa and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov and A. Zupanc and O. Zyukova",
year = "2012",
month = "3",
day = "20",
doi = "10.1103/PhysRevLett.108.122001",
language = "English",
volume = "108",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "12",

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TY - JOUR

T1 - Observation of two charged bottomoniumlike resonances in Y(5S) decays

AU - Bondar, A.

AU - Garmash, A.

AU - Mizuk, R.

AU - Santel, D.

AU - Kinoshita, K.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Asner, D. M.

AU - Aushev, T.

AU - Aziz, T.

AU - Bakich, A. M.

AU - Barberio, E.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bischofberger, M.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chang, P.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, I. S.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Dalseno, J.

AU - Danilov, M.

AU - Doleal, Z.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fast, J. E.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Goh, Y. M.

AU - Golob, B.

AU - Haba, J.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hoshi, Y.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Iwashita, T.

AU - Julius, T.

AU - Kang, J. H.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kiesling, C.

AU - Kim, J. B.

AU - Kim, J. H.

AU - Kim, K. T.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Ko, B. R.

AU - Kobayashi, N.

AU - Koblitz, S.

AU - Kody, P.

AU - Korpar, S.

AU - Krian, P.

AU - Kuhr, T.

AU - Kumar, R.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Lange, J. S.

AU - Lee, S. H.

AU - Li, J.

AU - Li, Y.

AU - Libby, J.

AU - Liu, C.

AU - Liu, Z. Q.

AU - Liventsev, D.

AU - Louvot, R.

AU - Matvienko, D.

AU - McOnie, S.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mohanty, G. B.

AU - Moll, A.

AU - Muramatsu, N.

AU - Mussa, R.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Neubauer, S.

AU - Niiyama, M.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Olsen, S. L.

AU - Onuki, Y.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Park, H.

AU - Park, H. K.

AU - Pedlar, T. K.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Poluektov, A.

AU - Prim, M.

AU - Ritter, M.

AU - Röhrken, M.

AU - Ryu, S.

AU - Sahoo, H.

AU - Sakai, Y.

AU - Santel, D.

AU - Sanuki, T.

AU - Schneider, O.

AU - Schwanda, C.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shebalin, V.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Simon, F.

AU - Smerkol, P.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Starič, M.

AU - Sumihama, M.

AU - Sumiyoshi, T.

AU - Tanaka, S.

AU - Tatishvili, G.

AU - Teramoto, Y.

AU - Tikhomirov, I.

AU - Uchida, M.

AU - Uehara, S.

AU - Uglov, T.

AU - Ushiroda, Y.

AU - Vahsen, S. E.

AU - Varner, G.

AU - Vinokurova, A.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, Y.

AU - Williams, K. M.

AU - Won, Eunil

AU - Yabsley, B. D.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yuan, C. Z.

AU - Yusa, Y.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zupanc, A.

AU - Zyukova, O.

PY - 2012/3/20

Y1 - 2012/3/20

N2 - We report the observation of two narrow structures in the mass spectra of the π ±Υ(nS) (n=1, 2, 3) and π ±h b(mP) (m=1, 2) pairs that are produced in association with a single charged pion in Υ(5S) decays. The measured masses and widths of the two structures averaged over the five final states are M 1=(10607.2±2.0)MeV/c2, Γ 1=(18.4±2.4) MeV, and M 2=(10652.2±1.5)MeV/c2, Γ 2=(11. 5±2.2)MeV. The results are obtained with a 121.4fb -1 data sample collected with the Belle detector in the vicinity of the Υ(5S) resonance at the KEKB asymmetric-energy e +e - collider.

AB - We report the observation of two narrow structures in the mass spectra of the π ±Υ(nS) (n=1, 2, 3) and π ±h b(mP) (m=1, 2) pairs that are produced in association with a single charged pion in Υ(5S) decays. The measured masses and widths of the two structures averaged over the five final states are M 1=(10607.2±2.0)MeV/c2, Γ 1=(18.4±2.4) MeV, and M 2=(10652.2±1.5)MeV/c2, Γ 2=(11. 5±2.2)MeV. The results are obtained with a 121.4fb -1 data sample collected with the Belle detector in the vicinity of the Υ(5S) resonance at the KEKB asymmetric-energy e +e - collider.

UR - http://www.scopus.com/inward/record.url?scp=84859031820&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859031820&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.108.122001

DO - 10.1103/PhysRevLett.108.122001

M3 - Article

AN - SCOPUS:84859031820

VL - 108

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 12

M1 - 122001

ER -