Υ dipion transitions at energies near the Υ(4S)

S. Glenn; Y. Kwon; A. L. Lyon; S. Roberts; E. H. Thorndike; C. P. Jessop; K. Lingel; H. Marsiske; M. L. Perl; V. Savinov; D. Ugolini; X. Zhou; T. E. Coan; V. Fadeyev; I. Korolkov; Y. Maravin; I. Narsky; R. Stroynowski; J. Ye; T. Wlodek; M. Artuso; E. Dambasuren; S. Kopp; G. C. Moneti; R. Mountain; S. Schuh; T. Skwarnicki; S. Stone; A. Titov; G. Viehhauser; J. C. Wang; J. Bartelt; S. E. Csorna; K. W. McLean; S. Marka; Z. Xu; R. Godang; K. Kinoshita; I. C. Lai; P. Pomianowski; S. Schrenk; G. Bonvicini; D. Cinabro; R. Greene; L. P. Perera; G. J. Zhou; S. Chan; G. Eigen; E. Lipeles; J. S. Miller; M. Schmidtler; A. Shapiro; W. M. Sun; J. Urheim; A. J. Weinstein; F. Würthwein; D. E. Jaffe; G. Masek; H. P. Paar; E. M. Potter; S. Prell; V. Sharma; D. M. Asner; J. Gronberg; T. S. Hill; D. J. Lange; R. J. Morrison; H. N. Nelson; T. K. Nelson; D. Roberts; B. H. Behrens; W. T. Ford; A. Gritsan; H. Krieg; J. Roy; J. G. Smith; J. P. Alexander; R. Baker; C. Bebek; B. E. Berger; K. Berkelman; V. Boisvert; D. G. Cassel; D. S. Crowcroft; M. Dickson; S. Von Dombrowski; P. S. Drell; K. M. Ecklund; R. Ehrlich; A. D. Foland; P. Gaidarev; R. S. Galik; L. Gibbons; B. Gittelman; S. W. Gray; D. L. Hartill; B. K. Heltsley; P. I. Hopman; J. Kandaswamy; D. L. Kreinick; T. Lee; Y. Liu; N. B. Mistry; C. R. Ng; E. Nordberg; M. Ogg; J. R. Patterson; D. Peterson; D. Riley; A. Soffer; B. Valant-Spaight; A. Warburton; C. Ward; M. Athanas; P. Avery; C. D. Jones; M. Lohner; C. Prescott; A. I. Rubiera; J. Yelton; J. Zheng; G. Brandenburg; R. A. Briere; A. Ershov; Y. S. Gao; D. Y.J. Kim; R. Wilson; H. Yamamoto; T. E. Browder; Y. Li; J. L. Rodriguez; S. K. Sahu; T. Bergfeld; B. I. Eisenstein; J. Ernst; G. E. Gladding; G. D. Gollin; R. M. Hans; E. Johnson; I. Karliner; M. A. Marsh; M. Palmer; M. Selen; J. J. Thaler; K. W. Edwards; A. Bellerive; R. Janicek; P. M. Patel; A. J. Sadoff; R. Ammar; P. Baringer; A. Bean; D. Besson; D. Coppage; C. Darling; R. Davis; S. Kotov; I. Kravchenko; N. Kwak; L. Zhou; S. Anderson; Y. Kubota; S. J. Lee; R. Mahapatra; J. J. O'Neill; R. Poling; T. Riehle; A. Smith; M. S. Alam; S. B. Athar; Z. Ling; A. H. Mahmood; S. Timm; F. Wappler; A. Anastassov; J. E. Duboscq; K. K. Gan; T. Hart; K. Honscheid; H. Kagan; R. Kass; J. Lee; H. Schwarthoff; A. Wolf; M. M. Zoeller; S. J. Richichi; H. Severini; P. Skubic; A. Undrus; M. Bishai; S. Chen; J. Fast; J. W. Hinson; N. Menon; D. H. Miller; E. I. Shibata; I. P.J. Shipsey

doi:10.1103/PhysRevD.59.052003

Υ dipion transitions at energies near the Υ(4S)

S. Glenn, Y. Kwon, A. L. Lyon, S. Roberts, E. H. Thorndike, C. P. Jessop, K. Lingel, H. Marsiske, M. L. Perl, V. Savinov, D. Ugolini, X. Zhou, T. E. Coan, V. Fadeyev, I. Korolkov, Y. Maravin, I. Narsky, R. Stroynowski, J. Ye, T. WlodekM. Artuso, E. Dambasuren, S. Kopp, G. C. Moneti, R. Mountain, S. Schuh, T. Skwarnicki, S. Stone, A. Titov, G. Viehhauser, J. C. Wang, J. Bartelt, S. E. Csorna, K. W. McLean, S. Marka, Z. Xu, R. Godang, K. Kinoshita, I. C. Lai, P. Pomianowski, S. Schrenk, G. Bonvicini, D. Cinabro, R. Greene, L. P. Perera, G. J. Zhou, S. Chan, G. Eigen, E. Lipeles, J. S. Miller, M. Schmidtler, A. Shapiro, W. M. Sun, J. Urheim, A. J. Weinstein, F. Würthwein, D. E. Jaffe, G. Masek, H. P. Paar, E. M. Potter, S. Prell, V. Sharma, D. M. Asner, J. Gronberg, T. S. Hill, D. J. Lange, R. J. Morrison, H. N. Nelson, T. K. Nelson, D. Roberts, B. H. Behrens, W. T. Ford, A. Gritsan, H. Krieg, J. Roy, J. G. Smith, J. P. Alexander, R. Baker, C. Bebek, B. E. Berger, K. Berkelman, V. Boisvert, D. G. Cassel, D. S. Crowcroft, M. Dickson, S. Von Dombrowski, P. S. Drell, K. M. Ecklund, R. Ehrlich, A. D. Foland, P. Gaidarev, R. S. Galik, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, P. I. Hopman, J. Kandaswamy, D. L. Kreinick, T. Lee, Y. Liu, N. B. Mistry, C. R. Ng, E. Nordberg, M. Ogg, J. R. Patterson, D. Peterson, D. Riley, A. Soffer, B. Valant-Spaight, A. Warburton, C. Ward, M. Athanas, P. Avery, C. D. Jones, M. Lohner, C. Prescott, A. I. Rubiera, J. Yelton, J. Zheng, G. Brandenburg, R. A. Briere, A. Ershov, Y. S. Gao, D. Y.J. Kim, R. Wilson, H. Yamamoto, T. E. Browder, Y. Li, J. L. Rodriguez, S. K. Sahu, T. Bergfeld, B. I. Eisenstein, J. Ernst, G. E. Gladding, G. D. Gollin, R. M. Hans, E. Johnson, I. Karliner, M. A. Marsh, M. Palmer, M. Selen, J. J. Thaler, K. W. Edwards, A. Bellerive, R. Janicek, P. M. Patel, A. J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, C. Darling, R. Davis, S. Kotov, I. Kravchenko, N. Kwak, L. Zhou, S. Anderson, Y. Kubota, S. J. Lee, R. Mahapatra, J. J. O'Neill, R. Poling, T. Riehle, A. Smith, M. S. Alam, S. B. Athar, Z. Ling, A. H. Mahmood, S. Timm, F. Wappler, A. Anastassov, J. E. Duboscq, K. K. Gan, T. Hart, K. Honscheid, H. Kagan, R. Kass, J. Lee, H. Schwarthoff, A. Wolf, M. M. Zoeller, S. J. Richichi, H. Severini, P. Skubic, A. Undrus, M. Bishai, S. Chen, J. Fast, J. W. Hinson, N. Menon, D. H. Miller, E. I. Shibata, I. P.J. Shipsey

Department of Physics

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

10 Citations (Scopus)

Abstract

Using a 4.19 fb^-1 data sample collected with the CLEO II detector at the Cornell Electron Storage Ring, we have searched for dipion transitions between pairs of Y resonances at center of mass energies E_c.m. = 10.58 GeV and E_c.m. = 10.52GeV. We obtain the 90% confidence level upper limits B(Υ(4S) →Υ (2S) π⁺π^-)<3.9×10^-4 and B(Υ(4S)→Υ(1S)π⁺π ^-)<1.2×10^-4. We also observe the transitions Υ(2S)→Υ(1S)π⁺π^-, Υ(3S)→Υ(2S)π⁺π^-, and Υ(2S)→Υ(1S)π⁺π^-, from which we measure the cross sections for the radiative processes e⁺e^-→Υ(2S)γ and e⁺e^-→Υ(2S)γ. We obtain σ_{ee→Υ(3S)γ} = (17.8±3.0±1.7)pb and _{ee→Υ(2S)γ} = (15.5±1.3±1.4) pb at E_c.m. = 10.58 GeV, and _{ee→Υ(3S)γ} = (27.3 ±5.0±2.6) pb and _{ee→Υ(2S)γ} = (16.3±1.8±1.5) pb at E_c.m. = 10.52 GeV, which we compare with theoretical predictions.

Original language	English
Article number	052003
Pages (from-to)	1-8
Number of pages	8
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	59
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.59.052003
Publication status	Published - 1999 Mar 1

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1103/PhysRevD.59.052003

Cite this

Glenn, S., Kwon, Y., Lyon, A. L., Roberts, S., Thorndike, E. H., Jessop, C. P., Lingel, K., Marsiske, H., Perl, M. L., Savinov, V., Ugolini, D., Zhou, X., Coan, T. E., Fadeyev, V., Korolkov, I., Maravin, Y., Narsky, I., Stroynowski, R., Ye, J., ... Shipsey, I. P. J. (1999). Υ dipion transitions at energies near the Υ(4S). Physical Review D - Particles, Fields, Gravitation and Cosmology, 59(5), 1-8. Article 052003. https://doi.org/10.1103/PhysRevD.59.052003

@article{008383c237cc447483c097e65b2fae2d,

title = "Υ dipion transitions at energies near the Υ(4S)",

abstract = "Using a 4.19 fb-1 data sample collected with the CLEO II detector at the Cornell Electron Storage Ring, we have searched for dipion transitions between pairs of Y resonances at center of mass energies Ec.m. = 10.58 GeV and Ec.m. = 10.52GeV. We obtain the 90% confidence level upper limits B(Υ(4S) →Υ (2S) π+π-)<3.9×10-4 and B(Υ(4S)→Υ(1S)π+π -)<1.2×10-4. We also observe the transitions Υ(2S)→Υ(1S)π+π-, Υ(3S)→Υ(2S)π+π-, and Υ(2S)→Υ(1S)π+π-, from which we measure the cross sections for the radiative processes e+e-→Υ(2S)γ and e+e-→Υ(2S)γ. We obtain σee→Υ(3S)γ = (17.8±3.0±1.7)pb and ee→Υ(2S)γ = (15.5±1.3±1.4) pb at Ec.m. = 10.58 GeV, and ee→Υ(3S)γ = (27.3 ±5.0±2.6) pb and ee→Υ(2S)γ = (16.3±1.8±1.5) pb at Ec.m. = 10.52 GeV, which we compare with theoretical predictions.",

author = "S. Glenn and Y. Kwon and Lyon, {A. L.} and S. Roberts and Thorndike, {E. H.} and Jessop, {C. P.} and K. Lingel and H. Marsiske and Perl, {M. L.} and V. Savinov and D. Ugolini and X. Zhou and Coan, {T. E.} and V. Fadeyev and I. Korolkov and Y. Maravin and I. Narsky and R. Stroynowski and J. Ye and T. Wlodek and M. Artuso and E. Dambasuren and S. Kopp and Moneti, {G. C.} and R. Mountain and S. Schuh and T. Skwarnicki and S. Stone and A. Titov and G. Viehhauser and Wang, {J. C.} and J. Bartelt and Csorna, {S. E.} and McLean, {K. W.} and S. Marka and Z. Xu and R. Godang and K. Kinoshita and Lai, {I. C.} and P. Pomianowski and S. Schrenk and G. Bonvicini and D. Cinabro and R. Greene and Perera, {L. P.} and Zhou, {G. J.} and S. Chan and G. Eigen and E. Lipeles and Miller, {J. S.} and M. Schmidtler and A. Shapiro and Sun, {W. M.} and J. Urheim and Weinstein, {A. J.} and F. W{\"u}rthwein and Jaffe, {D. E.} and G. Masek and Paar, {H. P.} and Potter, {E. M.} and S. Prell and V. Sharma and Asner, {D. M.} and J. Gronberg and Hill, {T. S.} and Lange, {D. J.} and Morrison, {R. J.} and Nelson, {H. N.} and Nelson, {T. K.} and D. Roberts and Behrens, {B. H.} and Ford, {W. T.} and A. Gritsan and H. Krieg and J. Roy and Smith, {J. G.} and Alexander, {J. P.} and R. Baker and C. Bebek and Berger, {B. E.} and K. Berkelman and V. Boisvert and Cassel, {D. G.} and Crowcroft, {D. S.} and M. Dickson and {Von Dombrowski}, S. and Drell, {P. S.} and Ecklund, {K. M.} and R. Ehrlich and Foland, {A. D.} and P. Gaidarev and Galik, {R. S.} and L. Gibbons and B. Gittelman and Gray, {S. W.} and Hartill, {D. L.} and Heltsley, {B. K.} and Hopman, {P. I.} and J. Kandaswamy and Kreinick, {D. L.} and T. Lee and Y. Liu and Mistry, {N. B.} and Ng, {C. R.} and E. Nordberg and M. Ogg and Patterson, {J. R.} and D. Peterson and D. Riley and A. Soffer and B. Valant-Spaight and A. Warburton and C. Ward and M. Athanas and P. Avery and Jones, {C. D.} and M. Lohner and C. Prescott and Rubiera, {A. I.} and J. Yelton and J. Zheng and G. Brandenburg and Briere, {R. A.} and A. Ershov and Gao, {Y. S.} and Kim, {D. Y.J.} and R. Wilson and H. Yamamoto and Browder, {T. E.} and Y. Li and Rodriguez, {J. L.} and Sahu, {S. K.} and T. Bergfeld and Eisenstein, {B. I.} and J. Ernst and Gladding, {G. E.} and Gollin, {G. D.} and Hans, {R. M.} and E. Johnson and I. Karliner and Marsh, {M. A.} and M. Palmer and M. Selen and Thaler, {J. J.} and Edwards, {K. W.} and A. Bellerive and R. Janicek and Patel, {P. M.} and Sadoff, {A. J.} and R. Ammar and P. Baringer and A. Bean and D. Besson and D. Coppage and C. Darling and R. Davis and S. Kotov and I. Kravchenko and N. Kwak and L. Zhou and S. Anderson and Y. Kubota and Lee, {S. J.} and R. Mahapatra and O'Neill, {J. J.} and R. Poling and T. Riehle and A. Smith and Alam, {M. S.} and Athar, {S. B.} and Z. Ling and Mahmood, {A. H.} and S. Timm and F. Wappler and A. Anastassov and Duboscq, {J. E.} and Gan, {K. K.} and T. Hart and K. Honscheid and H. Kagan and R. Kass and J. Lee and H. Schwarthoff and A. Wolf and Zoeller, {M. M.} and Richichi, {S. J.} and H. Severini and P. Skubic and A. Undrus and M. Bishai and S. Chen and J. Fast and Hinson, {J. W.} and N. Menon and Miller, {D. H.} and Shibata, {E. I.} and Shipsey, {I. P.J.}",

year = "1999",

month = mar,

day = "1",

doi = "10.1103/PhysRevD.59.052003",

language = "English",

volume = "59",

pages = "1--8",

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

issn = "0556-2821",

publisher = "American Physical Society",

number = "5",

}

Glenn, S, Kwon, Y, Lyon, AL, Roberts, S, Thorndike, EH, Jessop, CP, Lingel, K, Marsiske, H, Perl, ML, Savinov, V, Ugolini, D, Zhou, X, Coan, TE, Fadeyev, V, Korolkov, I, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Dambasuren, E, Kopp, S, Moneti, GC, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Titov, A, Viehhauser, G, Wang, JC, Bartelt, J, Csorna, SE, McLean, KW, Marka, S, Xu, Z, Godang, R, Kinoshita, K, Lai, IC, Pomianowski, P, Schrenk, S, Bonvicini, G, Cinabro, D, Greene, R, Perera, LP, Zhou, GJ, Chan, S, Eigen, G, Lipeles, E, Miller, JS, Schmidtler, M, Shapiro, A, Sun, WM, Urheim, J, Weinstein, AJ, Würthwein, F, Jaffe, DE, Masek, G, Paar, HP, Potter, EM, Prell, S, Sharma, V, Asner, DM, Gronberg, J, Hill, TS, Lange, DJ, Morrison, RJ, Nelson, HN, Nelson, TK, Roberts, D, Behrens, BH, Ford, WT, Gritsan, A, Krieg, H, Roy, J, Smith, JG, Alexander, JP, Baker, R, Bebek, C, Berger, BE, Berkelman, K, Boisvert, V, Cassel, DG, Crowcroft, DS, Dickson, M, Von Dombrowski, S, Drell, PS, Ecklund, KM, Ehrlich, R, Foland, AD, Gaidarev, P, Galik, RS, Gibbons, L, Gittelman, B, Gray, SW, Hartill, DL, Heltsley, BK, Hopman, PI, Kandaswamy, J, Kreinick, DL, Lee, T, Liu, Y, Mistry, NB, Ng, CR, Nordberg, E, Ogg, M, Patterson, JR, Peterson, D, Riley, D, Soffer, A, Valant-Spaight, B, Warburton, A, Ward, C, Athanas, M, Avery, P, Jones, CD, Lohner, M, Prescott, C, Rubiera, AI, Yelton, J, Zheng, J, Brandenburg, G, Briere, RA, Ershov, A, Gao, YS, Kim, DYJ, Wilson, R, Yamamoto, H, Browder, TE, Li, Y, Rodriguez, JL, Sahu, SK, Bergfeld, T, Eisenstein, BI, Ernst, J, Gladding, GE, Gollin, GD, Hans, RM, Johnson, E, Karliner, I, Marsh, MA, Palmer, M, Selen, M, Thaler, JJ, Edwards, KW, Bellerive, A, Janicek, R, Patel, PM, Sadoff, AJ, Ammar, R, Baringer, P, Bean, A, Besson, D, Coppage, D, Darling, C, Davis, R, Kotov, S, Kravchenko, I, Kwak, N, Zhou, L, Anderson, S, Kubota, Y, Lee, SJ, Mahapatra, R, O'Neill, JJ, Poling, R, Riehle, T, Smith, A, Alam, MS, Athar, SB, Ling, Z, Mahmood, AH, Timm, S, Wappler, F, Anastassov, A, Duboscq, JE, Gan, KK, Hart, T, Honscheid, K, Kagan, H, Kass, R, Lee, J, Schwarthoff, H, Wolf, A, Zoeller, MM, Richichi, SJ, Severini, H, Skubic, P, Undrus, A, Bishai, M, Chen, S, Fast, J, Hinson, JW, Menon, N, Miller, DH, Shibata, EI & Shipsey, IPJ 1999, 'Υ dipion transitions at energies near the Υ(4S)', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 59, no. 5, 052003, pp. 1-8. https://doi.org/10.1103/PhysRevD.59.052003

TY - JOUR

T1 - Υ dipion transitions at energies near the Υ(4S)

AU - Glenn, S.

AU - Kwon, Y.

AU - Lyon, A. L.

AU - Roberts, S.

AU - Thorndike, E. H.

AU - Jessop, C. P.

AU - Lingel, K.

AU - Marsiske, H.

AU - Perl, M. L.

AU - Savinov, V.

AU - Ugolini, D.

AU - Zhou, X.

AU - Coan, T. E.

AU - Fadeyev, V.

AU - Korolkov, I.

AU - Maravin, Y.

AU - Narsky, I.

AU - Stroynowski, R.

AU - Ye, J.

AU - Wlodek, T.

AU - Artuso, M.

AU - Dambasuren, E.

AU - Kopp, S.

AU - Moneti, G. C.

AU - Mountain, R.

AU - Schuh, S.

AU - Skwarnicki, T.

AU - Stone, S.

AU - Titov, A.

AU - Viehhauser, G.

AU - Wang, J. C.

AU - Bartelt, J.

AU - Csorna, S. E.

AU - McLean, K. W.

AU - Marka, S.

AU - Xu, Z.

AU - Godang, R.

AU - Kinoshita, K.

AU - Lai, I. C.

AU - Pomianowski, P.

AU - Schrenk, S.

AU - Bonvicini, G.

AU - Cinabro, D.

AU - Greene, R.

AU - Perera, L. P.

AU - Zhou, G. J.

AU - Chan, S.

AU - Eigen, G.

AU - Lipeles, E.

AU - Miller, J. S.

AU - Schmidtler, M.

AU - Shapiro, A.

AU - Sun, W. M.

AU - Urheim, J.

AU - Weinstein, A. J.

AU - Würthwein, F.

AU - Jaffe, D. E.

AU - Masek, G.

AU - Paar, H. P.

AU - Potter, E. M.

AU - Prell, S.

AU - Sharma, V.

AU - Asner, D. M.

AU - Gronberg, J.

AU - Hill, T. S.

AU - Lange, D. J.

AU - Morrison, R. J.

AU - Nelson, H. N.

AU - Nelson, T. K.

AU - Roberts, D.

AU - Behrens, B. H.

AU - Ford, W. T.

AU - Gritsan, A.

AU - Krieg, H.

AU - Roy, J.

AU - Smith, J. G.

AU - Alexander, J. P.

AU - Baker, R.

AU - Bebek, C.

AU - Berger, B. E.

AU - Berkelman, K.

AU - Boisvert, V.

AU - Cassel, D. G.

AU - Crowcroft, D. S.

AU - Dickson, M.

AU - Von Dombrowski, S.

AU - Drell, P. S.

AU - Ecklund, K. M.

AU - Ehrlich, R.

AU - Foland, A. D.

AU - Gaidarev, P.

AU - Galik, R. S.

AU - Gibbons, L.

AU - Gittelman, B.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Hopman, P. I.

AU - Kandaswamy, J.

AU - Kreinick, D. L.

AU - Lee, T.

AU - Liu, Y.

AU - Mistry, N. B.

AU - Ng, C. R.

AU - Nordberg, E.

AU - Ogg, M.

AU - Patterson, J. R.

AU - Peterson, D.

AU - Riley, D.

AU - Soffer, A.

AU - Valant-Spaight, B.

AU - Warburton, A.

AU - Ward, C.

AU - Athanas, M.

AU - Avery, P.

AU - Jones, C. D.

AU - Lohner, M.

AU - Prescott, C.

AU - Rubiera, A. I.

AU - Yelton, J.

AU - Zheng, J.

AU - Brandenburg, G.

AU - Briere, R. A.

AU - Ershov, A.

AU - Gao, Y. S.

AU - Kim, D. Y.J.

AU - Wilson, R.

AU - Yamamoto, H.

AU - Browder, T. E.

AU - Li, Y.

AU - Rodriguez, J. L.

AU - Sahu, S. K.

AU - Bergfeld, T.

AU - Eisenstein, B. I.

AU - Ernst, J.

AU - Gladding, G. E.

AU - Gollin, G. D.

AU - Hans, R. M.

AU - Johnson, E.

AU - Karliner, I.

AU - Marsh, M. A.

AU - Palmer, M.

AU - Selen, M.

AU - Thaler, J. J.

AU - Edwards, K. W.

AU - Bellerive, A.

AU - Janicek, R.

AU - Patel, P. M.

AU - Sadoff, A. J.

AU - Ammar, R.

AU - Baringer, P.

AU - Bean, A.

AU - Besson, D.

AU - Coppage, D.

AU - Darling, C.

AU - Davis, R.

AU - Kotov, S.

AU - Kravchenko, I.

AU - Kwak, N.

AU - Zhou, L.

AU - Anderson, S.

AU - Kubota, Y.

AU - Lee, S. J.

AU - Mahapatra, R.

AU - O'Neill, J. J.

AU - Poling, R.

AU - Riehle, T.

AU - Smith, A.

AU - Alam, M. S.

AU - Athar, S. B.

AU - Ling, Z.

AU - Mahmood, A. H.

AU - Timm, S.

AU - Wappler, F.

AU - Anastassov, A.

AU - Duboscq, J. E.

AU - Gan, K. K.

AU - Hart, T.

AU - Honscheid, K.

AU - Kagan, H.

AU - Kass, R.

AU - Lee, J.

AU - Schwarthoff, H.

AU - Wolf, A.

AU - Zoeller, M. M.

AU - Richichi, S. J.

AU - Severini, H.

AU - Skubic, P.

AU - Undrus, A.

AU - Bishai, M.

AU - Chen, S.

AU - Fast, J.

AU - Hinson, J. W.

AU - Menon, N.

AU - Miller, D. H.

AU - Shibata, E. I.

AU - Shipsey, I. P.J.

PY - 1999/3/1

Y1 - 1999/3/1

N2 - Using a 4.19 fb-1 data sample collected with the CLEO II detector at the Cornell Electron Storage Ring, we have searched for dipion transitions between pairs of Y resonances at center of mass energies Ec.m. = 10.58 GeV and Ec.m. = 10.52GeV. We obtain the 90% confidence level upper limits B(Υ(4S) →Υ (2S) π+π-)<3.9×10-4 and B(Υ(4S)→Υ(1S)π+π -)<1.2×10-4. We also observe the transitions Υ(2S)→Υ(1S)π+π-, Υ(3S)→Υ(2S)π+π-, and Υ(2S)→Υ(1S)π+π-, from which we measure the cross sections for the radiative processes e+e-→Υ(2S)γ and e+e-→Υ(2S)γ. We obtain σee→Υ(3S)γ = (17.8±3.0±1.7)pb and ee→Υ(2S)γ = (15.5±1.3±1.4) pb at Ec.m. = 10.58 GeV, and ee→Υ(3S)γ = (27.3 ±5.0±2.6) pb and ee→Υ(2S)γ = (16.3±1.8±1.5) pb at Ec.m. = 10.52 GeV, which we compare with theoretical predictions.

AB - Using a 4.19 fb-1 data sample collected with the CLEO II detector at the Cornell Electron Storage Ring, we have searched for dipion transitions between pairs of Y resonances at center of mass energies Ec.m. = 10.58 GeV and Ec.m. = 10.52GeV. We obtain the 90% confidence level upper limits B(Υ(4S) →Υ (2S) π+π-)<3.9×10-4 and B(Υ(4S)→Υ(1S)π+π -)<1.2×10-4. We also observe the transitions Υ(2S)→Υ(1S)π+π-, Υ(3S)→Υ(2S)π+π-, and Υ(2S)→Υ(1S)π+π-, from which we measure the cross sections for the radiative processes e+e-→Υ(2S)γ and e+e-→Υ(2S)γ. We obtain σee→Υ(3S)γ = (17.8±3.0±1.7)pb and ee→Υ(2S)γ = (15.5±1.3±1.4) pb at Ec.m. = 10.58 GeV, and ee→Υ(3S)γ = (27.3 ±5.0±2.6) pb and ee→Υ(2S)γ = (16.3±1.8±1.5) pb at Ec.m. = 10.52 GeV, which we compare with theoretical predictions.

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U2 - 10.1103/PhysRevD.59.052003

DO - 10.1103/PhysRevD.59.052003

M3 - Article

AN - SCOPUS:16644394533

SN - 0556-2821

VL - 59

SP - 1

EP - 8

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

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

IS - 5

M1 - 052003

ER -

Υ dipion transitions at energies near the Υ(4S)

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