Observation of anomalous Υ(1S)π+π- and Υ(2S)π+π- Production near the Υ(5S) resonance

K. F. Chen, W. S. Hou, M. Shapkin, A. Sokolov, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, A. Bay, K. Belous, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder & 131 others P. Chang, Y. Chao, A. Chen, W. T. Chen, R. Chistov, Y. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. O. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, R. Kumar, C. C. Kuo, Y. J. Kwon, J. S. Lange, J. S. Lee, M. J. Lee, T. Lesiak, A. Limosani, S. W. Lin, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, C. P. Shen, H. Shibuya, J. G. Shiu, B. Shwartz, A. Somov, S. Stanič, M. Starič, T. Sumiyoshi, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, K. Trabelsi, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. Vervink, S. Villa, C. C. Wang, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, J. Wicht, Eunil Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, C. Z. Yuan, Y. Yusa, C. C. Zhang, Z. P. Zhang, A. Zupanc

Research output: Contribution to journalArticle

173 Citations (Scopus)

Abstract

We report the first observation of e+e-→Υ(1S)π+π-, Υ(2S)π+π-, and first evidence for e+e-→Υ(3S)π+π-, Υ(1S)K+K-, near the peak of the Υ(5S) resonance at s∼10.87GeV. The results are based on a data sample of 21.7fb-1 collected with the Belle detector at the KEKB e+e- collider. Attributing the signals to the Υ(5S) resonance, the partial widths Γ(Υ(5S)→Υ(1S)π+π-)=0. 59±0.04(stat)±0.09(syst)MeV and Γ(Υ(5S)→Υ(2S) π+π-)=0.85±0.07(stat)±0.16(syst)MeV are obtained from the observed cross sections. These values exceed by more than 2 orders of magnitude the previously measured partial widths for dipion transitions between lower Υ resonances.

Original languageEnglish
Article number112001
JournalPhysical Review Letters
Volume100
Issue number11
DOIs
Publication statusPublished - 2008 Mar 17

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Chen, K. F., Hou, W. S., Shapkin, M., Sokolov, A., Adachi, I., Aihara, H., ... Zupanc, A. (2008). Observation of anomalous Υ(1S)π+π- and Υ(2S)π+π- Production near the Υ(5S) resonance. Physical Review Letters, 100(11), [112001]. https://doi.org/10.1103/PhysRevLett.100.112001

Observation of anomalous Υ(1S)π+π- and Υ(2S)π+π- Production near the Υ(5S) resonance. / Chen, K. F.; Hou, W. S.; Shapkin, M.; Sokolov, A.; Adachi, I.; Aihara, H.; Arinstein, K.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Balagura, V.; Bay, A.; Belous, K.; Bhardwaj, V.; Bitenc, U.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Browder, T. E.; Chang, P.; Chao, Y.; Chen, A.; Chen, W. T.; Chistov, R.; Choi, Y.; Dalseno, J.; Danilov, M.; Dash, M.; Drutskoy, A.; Eidelman, S.; Gabyshev, N.; Golob, B.; Ha, H.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Heffernan, D.; Hoshi, Y.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kah, D. H.; Kang, J. H.; Kapusta, P.; Katayama, N.; Kawai, H.; Kawasaki, T.; Kichimi, H.; Kim, H. O.; Kim, S. K.; Kim, Y. J.; Kinoshita, K.; Korpar, S.; Križan, P.; Krokovny, P.; Kumar, R.; Kuo, C. C.; Kwon, Y. J.; Lange, J. S.; Lee, J. S.; Lee, M. J.; Lesiak, T.; Limosani, A.; Lin, S. W.; Liu, Y.; Liventsev, D.; Mandl, F.; McOnie, S.; Medvedeva, T.; Mitaroff, W.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Moloney, G. R.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Ostrowicz, W.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Palka, H.; Park, C. W.; Park, H.; Park, K. S.; Pestotnik, R.; Piilonen, L. E.; Sakai, Y.; Schneider, O.; Schümann, J.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Sevior, M. E.; Shen, C. P.; Shibuya, H.; Shiu, J. G.; Shwartz, B.; Somov, A.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Takasaki, F.; Tamai, K.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Trabelsi, K.; Uehara, S.; Ueno, K.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Ushiroda, Y.; Usov, Y.; Varner, G.; Vervink, K.; Villa, S.; Wang, C. C.; Wang, C. H.; Wang, M. Z.; Wang, P.; Wang, X. L.; Watanabe, Y.; Wedd, R.; Wicht, J.; Won, Eunil; Yabsley, B. D.; Yamashita, Y.; Yamauchi, M.; Yuan, C. Z.; Yusa, Y.; Zhang, C. C.; Zhang, Z. P.; Zupanc, A.

In: Physical Review Letters, Vol. 100, No. 11, 112001, 17.03.2008.

Research output: Contribution to journalArticle

Chen, KF, Hou, WS, Shapkin, M, Sokolov, A, Adachi, I, Aihara, H, Arinstein, K, Aulchenko, V, Aushev, T, Bakich, AM, Balagura, V, Bay, A, Belous, K, Bhardwaj, V, Bitenc, U, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Browder, TE, Chang, P, Chao, Y, Chen, A, Chen, WT, Chistov, R, Choi, Y, Dalseno, J, Danilov, M, Dash, M, Drutskoy, A, Eidelman, S, Gabyshev, N, Golob, B, Ha, H, Haba, J, Hayasaka, K, Hayashii, H, Hazumi, M, Heffernan, D, Hoshi, Y, Hsiung, YB, Hyun, HJ, Iijima, T, Inami, K, Ishikawa, A, Ishino, H, Itoh, R, Iwasaki, M, Iwasaki, Y, Kah, DH, Kang, JH, Kapusta, P, Katayama, N, Kawai, H, Kawasaki, T, Kichimi, H, Kim, HO, Kim, SK, Kim, YJ, Kinoshita, K, Korpar, S, Križan, P, Krokovny, P, Kumar, R, Kuo, CC, Kwon, YJ, Lange, JS, Lee, JS, Lee, MJ, Lesiak, T, Limosani, A, Lin, SW, Liu, Y, Liventsev, D, Mandl, F, McOnie, S, Medvedeva, T, Mitaroff, W, Miyabayashi, K, Miyake, H, Miyata, H, Miyazaki, Y, Mizuk, R, Moloney, GR, Nakao, M, Natkaniec, Z, Nishida, S, Nitoh, O, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Ostrowicz, W, Ozaki, H, Pakhlov, P, Pakhlova, G, Palka, H, Park, CW, Park, H, Park, KS, Pestotnik, R, Piilonen, LE, Sakai, Y, Schneider, O, Schümann, J, Schwanda, C, Schwartz, AJ, Senyo, K, Sevior, ME, Shen, CP, Shibuya, H, Shiu, JG, Shwartz, B, Somov, A, Stanič, S, Starič, M, Sumiyoshi, T, Takasaki, F, Tamai, K, Tanaka, M, Taylor, GN, Teramoto, Y, Trabelsi, K, Uehara, S, Ueno, K, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Ushiroda, Y, Usov, Y, Varner, G, Vervink, K, Villa, S, Wang, CC, Wang, CH, Wang, MZ, Wang, P, Wang, XL, Watanabe, Y, Wedd, R, Wicht, J, Won, E, Yabsley, BD, Yamashita, Y, Yamauchi, M, Yuan, CZ, Yusa, Y, Zhang, CC, Zhang, ZP & Zupanc, A 2008, 'Observation of anomalous Υ(1S)π+π- and Υ(2S)π+π- Production near the Υ(5S) resonance', Physical Review Letters, vol. 100, no. 11, 112001. https://doi.org/10.1103/PhysRevLett.100.112001
Chen, K. F. ; Hou, W. S. ; Shapkin, M. ; Sokolov, A. ; Adachi, I. ; Aihara, H. ; Arinstein, K. ; Aulchenko, V. ; Aushev, T. ; Bakich, A. M. ; Balagura, V. ; Bay, A. ; Belous, K. ; Bhardwaj, V. ; Bitenc, U. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Brodzicka, J. ; Browder, T. E. ; Chang, P. ; Chao, Y. ; Chen, A. ; Chen, W. T. ; Chistov, R. ; Choi, Y. ; Dalseno, J. ; Danilov, M. ; Dash, M. ; Drutskoy, A. ; Eidelman, S. ; Gabyshev, N. ; Golob, B. ; Ha, H. ; Haba, J. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Heffernan, D. ; Hoshi, Y. ; Hsiung, Y. B. ; Hyun, H. J. ; Iijima, T. ; Inami, K. ; Ishikawa, A. ; Ishino, H. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Kah, D. H. ; Kang, J. H. ; Kapusta, P. ; Katayama, N. ; Kawai, H. ; Kawasaki, T. ; Kichimi, H. ; Kim, H. O. ; Kim, S. K. ; Kim, Y. J. ; Kinoshita, K. ; Korpar, S. ; Križan, P. ; Krokovny, P. ; Kumar, R. ; Kuo, C. C. ; Kwon, Y. J. ; Lange, J. S. ; Lee, J. S. ; Lee, M. J. ; Lesiak, T. ; Limosani, A. ; Lin, S. W. ; Liu, Y. ; Liventsev, D. ; Mandl, F. ; McOnie, S. ; Medvedeva, T. ; Mitaroff, W. ; Miyabayashi, K. ; Miyake, H. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R. ; Moloney, G. R. ; Nakao, M. ; Natkaniec, Z. ; Nishida, S. ; Nitoh, O. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Olsen, S. L. ; Ostrowicz, W. ; Ozaki, H. ; Pakhlov, P. ; Pakhlova, G. ; Palka, H. ; Park, C. W. ; Park, H. ; Park, K. S. ; Pestotnik, R. ; Piilonen, L. E. ; Sakai, Y. ; Schneider, O. ; Schümann, J. ; Schwanda, C. ; Schwartz, A. J. ; Senyo, K. ; Sevior, M. E. ; Shen, C. P. ; Shibuya, H. ; Shiu, J. G. ; Shwartz, B. ; Somov, A. ; Stanič, S. ; Starič, M. ; Sumiyoshi, T. ; Takasaki, F. ; Tamai, K. ; Tanaka, M. ; Taylor, G. N. ; Teramoto, Y. ; Trabelsi, K. ; Uehara, S. ; Ueno, K. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Urquijo, P. ; Ushiroda, Y. ; Usov, Y. ; Varner, G. ; Vervink, K. ; Villa, S. ; Wang, C. C. ; Wang, C. H. ; Wang, M. Z. ; Wang, P. ; Wang, X. L. ; Watanabe, Y. ; Wedd, R. ; Wicht, J. ; Won, Eunil ; Yabsley, B. D. ; Yamashita, Y. ; Yamauchi, M. ; Yuan, C. Z. ; Yusa, Y. ; Zhang, C. C. ; Zhang, Z. P. ; Zupanc, A. / Observation of anomalous Υ(1S)π+π- and Υ(2S)π+π- Production near the Υ(5S) resonance. In: Physical Review Letters. 2008 ; Vol. 100, No. 11.
@article{52f73c1a319546d883bbd0ac9b081538,
title = "Observation of anomalous Υ(1S)π+π- and Υ(2S)π+π- Production near the Υ(5S) resonance",
abstract = "We report the first observation of e+e-→Υ(1S)π+π-, Υ(2S)π+π-, and first evidence for e+e-→Υ(3S)π+π-, Υ(1S)K+K-, near the peak of the Υ(5S) resonance at s∼10.87GeV. The results are based on a data sample of 21.7fb-1 collected with the Belle detector at the KEKB e+e- collider. Attributing the signals to the Υ(5S) resonance, the partial widths Γ(Υ(5S)→Υ(1S)π+π-)=0. 59±0.04(stat)±0.09(syst)MeV and Γ(Υ(5S)→Υ(2S) π+π-)=0.85±0.07(stat)±0.16(syst)MeV are obtained from the observed cross sections. These values exceed by more than 2 orders of magnitude the previously measured partial widths for dipion transitions between lower Υ resonances.",
author = "Chen, {K. F.} and Hou, {W. S.} and M. Shapkin and A. Sokolov and I. Adachi and H. Aihara and K. Arinstein and V. Aulchenko and T. Aushev and Bakich, {A. M.} and V. Balagura and A. Bay and K. Belous and V. Bhardwaj and U. Bitenc and A. Bondar and A. Bozek and M. Bračko and J. Brodzicka and Browder, {T. E.} and P. Chang and Y. Chao and A. Chen and Chen, {W. T.} and R. Chistov and Y. Choi and J. Dalseno and M. Danilov and M. Dash and A. Drutskoy and S. Eidelman and N. Gabyshev and B. Golob and H. Ha and J. Haba and K. Hayasaka and H. Hayashii and M. Hazumi and D. Heffernan and Y. Hoshi 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 Kang, {J. H.} and P. Kapusta and N. Katayama and H. Kawai and T. Kawasaki and H. Kichimi and Kim, {H. O.} and Kim, {S. K.} and Kim, {Y. J.} and K. Kinoshita and S. Korpar and P. Križan and P. Krokovny and R. Kumar and Kuo, {C. C.} and Kwon, {Y. J.} and Lange, {J. S.} and Lee, {J. S.} and Lee, {M. J.} and T. Lesiak and A. Limosani and Lin, {S. W.} and Y. Liu and D. Liventsev and F. Mandl and S. McOnie and T. Medvedeva and W. Mitaroff and K. Miyabayashi and H. Miyake and H. Miyata and Y. Miyazaki and R. Mizuk and Moloney, {G. R.} and M. Nakao and Z. Natkaniec and S. Nishida and O. Nitoh and S. Ogawa and T. Ohshima and S. Okuno and Olsen, {S. L.} and W. Ostrowicz and H. Ozaki and P. Pakhlov and G. Pakhlova and H. Palka and Park, {C. W.} and H. Park and Park, {K. S.} and R. Pestotnik and Piilonen, {L. E.} and Y. Sakai and O. Schneider and J. Sch{\"u}mann and C. Schwanda and Schwartz, {A. J.} and K. Senyo and Sevior, {M. E.} and Shen, {C. P.} and H. Shibuya and Shiu, {J. G.} and B. Shwartz and A. Somov and S. Stanič and M. Starič and T. Sumiyoshi and F. Takasaki and K. Tamai and M. Tanaka and Taylor, {G. N.} and Y. Teramoto and K. Trabelsi and S. Uehara and K. Ueno and T. Uglov and Y. Unno and S. Uno and P. Urquijo and Y. Ushiroda and Y. Usov and G. Varner and K. Vervink and S. Villa and Wang, {C. C.} and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and Wang, {X. L.} and Y. Watanabe and R. Wedd and J. Wicht and Eunil Won and Yabsley, {B. D.} and Y. Yamashita and M. Yamauchi and Yuan, {C. Z.} and Y. Yusa and Zhang, {C. C.} and Zhang, {Z. P.} and A. Zupanc",
year = "2008",
month = "3",
day = "17",
doi = "10.1103/PhysRevLett.100.112001",
language = "English",
volume = "100",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "11",

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TY - JOUR

T1 - Observation of anomalous Υ(1S)π+π- and Υ(2S)π+π- Production near the Υ(5S) resonance

AU - Chen, K. F.

AU - Hou, W. S.

AU - Shapkin, M.

AU - Sokolov, A.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Bay, A.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bitenc, U.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Brodzicka, J.

AU - Browder, T. E.

AU - Chang, P.

AU - Chao, Y.

AU - Chen, A.

AU - Chen, W. T.

AU - Chistov, R.

AU - Choi, Y.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, M.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Gabyshev, N.

AU - Golob, B.

AU - Ha, H.

AU - Haba, J.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Heffernan, D.

AU - Hoshi, Y.

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 - Kang, J. H.

AU - Kapusta, P.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kim, H. O.

AU - Kim, S. K.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kumar, R.

AU - Kuo, C. C.

AU - Kwon, Y. J.

AU - Lange, J. S.

AU - Lee, J. S.

AU - Lee, M. J.

AU - Lesiak, T.

AU - Limosani, A.

AU - Lin, S. W.

AU - Liu, Y.

AU - Liventsev, D.

AU - Mandl, F.

AU - McOnie, S.

AU - Medvedeva, T.

AU - Mitaroff, W.

AU - Miyabayashi, K.

AU - Miyake, H.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mizuk, R.

AU - Moloney, G. R.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Nishida, S.

AU - Nitoh, O.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Ostrowicz, W.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Palka, H.

AU - Park, C. W.

AU - Park, H.

AU - Park, K. S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Sakai, Y.

AU - Schneider, O.

AU - Schümann, J.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shen, C. P.

AU - Shibuya, H.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Somov, A.

AU - Stanič, S.

AU - Starič, M.

AU - Sumiyoshi, T.

AU - Takasaki, F.

AU - Tamai, K.

AU - Tanaka, M.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Trabelsi, K.

AU - Uehara, S.

AU - Ueno, K.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Ushiroda, Y.

AU - Usov, Y.

AU - Varner, G.

AU - Vervink, K.

AU - Villa, S.

AU - Wang, C. C.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, Y.

AU - Wedd, R.

AU - Wicht, J.

AU - Won, Eunil

AU - Yabsley, B. D.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yuan, C. Z.

AU - Yusa, Y.

AU - Zhang, C. C.

AU - Zhang, Z. P.

AU - Zupanc, A.

PY - 2008/3/17

Y1 - 2008/3/17

N2 - We report the first observation of e+e-→Υ(1S)π+π-, Υ(2S)π+π-, and first evidence for e+e-→Υ(3S)π+π-, Υ(1S)K+K-, near the peak of the Υ(5S) resonance at s∼10.87GeV. The results are based on a data sample of 21.7fb-1 collected with the Belle detector at the KEKB e+e- collider. Attributing the signals to the Υ(5S) resonance, the partial widths Γ(Υ(5S)→Υ(1S)π+π-)=0. 59±0.04(stat)±0.09(syst)MeV and Γ(Υ(5S)→Υ(2S) π+π-)=0.85±0.07(stat)±0.16(syst)MeV are obtained from the observed cross sections. These values exceed by more than 2 orders of magnitude the previously measured partial widths for dipion transitions between lower Υ resonances.

AB - We report the first observation of e+e-→Υ(1S)π+π-, Υ(2S)π+π-, and first evidence for e+e-→Υ(3S)π+π-, Υ(1S)K+K-, near the peak of the Υ(5S) resonance at s∼10.87GeV. The results are based on a data sample of 21.7fb-1 collected with the Belle detector at the KEKB e+e- collider. Attributing the signals to the Υ(5S) resonance, the partial widths Γ(Υ(5S)→Υ(1S)π+π-)=0. 59±0.04(stat)±0.09(syst)MeV and Γ(Υ(5S)→Υ(2S) π+π-)=0.85±0.07(stat)±0.16(syst)MeV are obtained from the observed cross sections. These values exceed by more than 2 orders of magnitude the previously measured partial widths for dipion transitions between lower Υ resonances.

UR - http://www.scopus.com/inward/record.url?scp=40949128192&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=40949128192&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.100.112001

DO - 10.1103/PhysRevLett.100.112001

M3 - Article

VL - 100

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 11

M1 - 112001

ER -