Search for the decays B0 → D(*)+ D(*)-

D. M. Asner, Daniel Bliss, W. S. Brower, G. Masek, H. P. Paar, V. Sharma, J. Gronberg, R. Kutschke, D. J. Lange, S. Menary, R. J. Morrison, H. N. Nelson, T. K. Nelson, C. Qiao, J. D. Richman, D. Roberts, A. Ryd, M. S. Witherell, R. Balest, B. H. Behrens & 203 others K. Cho, W. T. Ford, H. Park, P. Rankin, J. Roy, J. G. Smith, J. P. Alexander, C. Bebek, B. E. Berger, K. Berkelman, K. Bloom, D. G. Cassel, H. A. Cho, D. M. Coffman, D. S. Crowcroft, M. Dickson, P. S. Drell, K. M. Ecklund, R. Ehrlich, R. Elia, A. D. Foland, P. Gaidarev, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, P. I. Hopman, J. Kandaswamy, N. Katayama, P. C. Kim, D. L. Kreinick, T. Lee, Y. Liu, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, C. R. Ng, E. Nordberg, M. Ogg, J. R. Patterson, D. Peterson, D. Riley, A. Soffer, C. Ward, M. Athanas, P. Avery, C. D. Jones, M. Lohner, C. Prescott, S. Yang, J. Yelton, J. Zheng, G. Brandenburg, R. A. Briere, Y. S. Gao, D. Y J Kim, R. Wilson, H. Yamamoto, T. E. Browder, F. Li, Y. Li, J. L. Rodriguez, 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, D. B. MacFarlane, K. W. McLean, P. M. Patel, A. J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, C. Darling, R. Davis, N. Hancock, S. Kotov, I. Kravchenko, N. Kwak, S. Anderson, Y. Kubota, M. Lattery, J. J. O'Neill, S. Patton, R. Poling, T. Riehle, V. Savinov, A. Smith, M. S. Alam, S. B. Athar, Z. Ling, A. H. Mahmood, H. Severini, S. Timm, F. Wappler, A. Anastassov, S. Blinov, J. E. Duboscq, K. D. Fisher, D. Fujino, R. Fulton, K. K. Gan, T. Hart, K. Honscheid, H. Kagan, R. Kass, J. Lee, M. B. Spencer, M. Sung, A. Undrus, R. Wanke, A. Wolf, M. M. Zoeller, B. Nemati, S. J. Richichi, W. R. Ross, P. Skubic, M. Wood, M. Bishai, J. Fast, E. Gerndt, J. W. Hinson, N. Menon, D. H. Miller, E. I. Shibata, I. P J Shipsey, M. Yurko, L. Gibbons, S. D. Johnson, Y. Kwon, S. Roberts, E. H. Thorndike, C. P. Jessop, K. Lingel, H. Marsiske, M. L. Perl, S. F. Schaffner, D. Ugolini, R. Wang, X. Zhou, T. E. Coan, V. Fadeyev, I. Korolkov, Y. Maravin, I. Narsky, V. Shelkov, J. Staeck, R. Stroynowski, I. Volobouev, J. Ye, M. Artuso, A. Efimov, F. Frasconi, M. Gao, M. Goldberg, D. He, S. Kopp, G. C. Moneti, R. Mountain, Y. Mukhin, S. Schuh, T. Skwarnicki, S. Stone, G. Viehhauser, X. Xing, J. Bartelt, S. E. Csorna, V. Jain, S. Marka, A. Freyberger, R. Godang, K. Kinoshita, I. C. Lai, P. Pomianowski, S. Schrenk, G. Bonvicini, D. Cinabro, R. Greene, L. P. Perera, B. Barish, M. Chadha, S. Chan, G. Eigen, J. S. Miller, C. O'Grady, M. Schmidtler, J. Urheim, A. J. Weinstein, F. Würthwein

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Using the CLEO-II data set we have searched for the decays B0 → D(*)+D(*)-. We observe one candidate signal event for the decay B0 → D*+D*- with an expected background of 0.022 ±0.011 events. This yield corresponds to a branching fraction of B(B0 → D*+D*-) = [5.3-3.7 +7.1(stat) ± 1.0(syst)] × 10-4 and an upper limit of B(B0 → D*+D*-) < 2.2 × 10-3 at the 90% C.L. We see no significant excess of signal above the expected background level in the other modes, and we calculate the 90% C.L. upper limits on the branching fractions to be B(B0 → D*±D*) < 1.8 × 10-3 and B(B0 → D+ D-) < 1.2 × 10-3.

Original languageEnglish (US)
Pages (from-to)799-803
Number of pages5
JournalPhysical Review Letters
Volume79
Issue number5
StatePublished - 1997
Externally publishedYes

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  • Physics and Astronomy(all)

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Asner, D. M., Bliss, D., Brower, W. S., Masek, G., Paar, H. P., Sharma, V., ... Würthwein, F. (1997). Search for the decays B0 → D(*)+ D(*)- Physical Review Letters, 79(5), 799-803.

Search for the decays B0 → D(*)+ D(*)- . / Asner, D. M.; Bliss, Daniel; Brower, W. S.; Masek, G.; Paar, H. P.; Sharma, V.; Gronberg, J.; Kutschke, R.; Lange, D. J.; Menary, S.; Morrison, R. J.; Nelson, H. N.; Nelson, T. K.; Qiao, C.; Richman, J. D.; Roberts, D.; Ryd, A.; Witherell, M. S.; Balest, R.; Behrens, B. H.; Cho, K.; Ford, W. T.; Park, H.; Rankin, P.; Roy, J.; Smith, J. G.; Alexander, J. P.; Bebek, C.; Berger, B. E.; Berkelman, K.; Bloom, K.; Cassel, D. G.; Cho, H. A.; Coffman, D. M.; Crowcroft, D. S.; Dickson, M.; Drell, P. S.; Ecklund, K. M.; Ehrlich, R.; Elia, R.; Foland, A. D.; Gaidarev, P.; Gittelman, B.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Hopman, P. I.; Kandaswamy, J.; Katayama, N.; Kim, P. C.; Kreinick, D. L.; Lee, T.; Liu, Y.; Ludwig, G. S.; Masui, J.; Mevissen, J.; Mistry, N. B.; Ng, C. R.; Nordberg, E.; Ogg, M.; Patterson, J. R.; Peterson, D.; Riley, D.; Soffer, A.; Ward, C.; Athanas, M.; Avery, P.; Jones, C. D.; Lohner, M.; Prescott, C.; Yang, S.; Yelton, J.; Zheng, J.; Brandenburg, G.; Briere, R. A.; Gao, Y. S.; Kim, D. Y J; Wilson, R.; Yamamoto, H.; Browder, T. E.; Li, F.; Li, Y.; Rodriguez, J. L.; Bergfeld, T.; Eisenstein, B. I.; Ernst, J.; Gladding, G. E.; Gollin, G. D.; Hans, R. M.; Johnson, E.; Karliner, I.; Marsh, M. A.; Palmer, M.; Selen, M.; Thaler, J. J.; Edwards, K. W.; Bellerive, A.; Janicek, R.; MacFarlane, D. B.; McLean, K. W.; Patel, P. M.; Sadoff, A. J.; Ammar, R.; Baringer, P.; Bean, A.; Besson, D.; Coppage, D.; Darling, C.; Davis, R.; Hancock, N.; Kotov, S.; Kravchenko, I.; Kwak, N.; Anderson, S.; Kubota, Y.; Lattery, M.; O'Neill, J. J.; Patton, S.; Poling, R.; Riehle, T.; Savinov, V.; Smith, A.; Alam, M. S.; Athar, S. B.; Ling, Z.; Mahmood, A. H.; Severini, H.; Timm, S.; Wappler, F.; Anastassov, A.; Blinov, S.; Duboscq, J. E.; Fisher, K. D.; Fujino, D.; Fulton, R.; Gan, K. K.; Hart, T.; Honscheid, K.; Kagan, H.; Kass, R.; Lee, J.; Spencer, M. B.; Sung, M.; Undrus, A.; Wanke, R.; Wolf, A.; Zoeller, M. M.; Nemati, B.; Richichi, S. J.; Ross, W. R.; Skubic, P.; Wood, M.; Bishai, M.; Fast, J.; Gerndt, E.; Hinson, J. W.; Menon, N.; Miller, D. H.; Shibata, E. I.; Shipsey, I. P J; Yurko, M.; Gibbons, L.; Johnson, S. D.; Kwon, Y.; Roberts, S.; Thorndike, E. H.; Jessop, C. P.; Lingel, K.; Marsiske, H.; Perl, M. L.; Schaffner, S. F.; Ugolini, D.; Wang, R.; Zhou, X.; Coan, T. E.; Fadeyev, V.; Korolkov, I.; Maravin, Y.; Narsky, I.; Shelkov, V.; Staeck, J.; Stroynowski, R.; Volobouev, I.; Ye, J.; Artuso, M.; Efimov, A.; Frasconi, F.; Gao, M.; Goldberg, M.; He, D.; Kopp, S.; Moneti, G. C.; Mountain, R.; Mukhin, Y.; Schuh, S.; Skwarnicki, T.; Stone, S.; Viehhauser, G.; Xing, X.; Bartelt, J.; Csorna, S. E.; Jain, V.; Marka, S.; Freyberger, A.; Godang, R.; Kinoshita, K.; Lai, I. C.; Pomianowski, P.; Schrenk, S.; Bonvicini, G.; Cinabro, D.; Greene, R.; Perera, L. P.; Barish, B.; Chadha, M.; Chan, S.; Eigen, G.; Miller, J. S.; O'Grady, C.; Schmidtler, M.; Urheim, J.; Weinstein, A. J.; Würthwein, F.

In: Physical Review Letters, Vol. 79, No. 5, 1997, p. 799-803.

Research output: Contribution to journalArticle

Asner, DM, Bliss, D, Brower, WS, Masek, G, Paar, HP, Sharma, V, Gronberg, J, Kutschke, R, Lange, DJ, Menary, S, Morrison, RJ, Nelson, HN, Nelson, TK, Qiao, C, Richman, JD, Roberts, D, Ryd, A, Witherell, MS, Balest, R, Behrens, BH, Cho, K, Ford, WT, Park, H, Rankin, P, Roy, J, Smith, JG, Alexander, JP, Bebek, C, Berger, BE, Berkelman, K, Bloom, K, Cassel, DG, Cho, HA, Coffman, DM, Crowcroft, DS, Dickson, M, Drell, PS, Ecklund, KM, Ehrlich, R, Elia, R, Foland, AD, Gaidarev, P, Gittelman, B, Gray, SW, Hartill, DL, Heltsley, BK, Hopman, PI, Kandaswamy, J, Katayama, N, Kim, PC, Kreinick, DL, Lee, T, Liu, Y, Ludwig, GS, Masui, J, Mevissen, J, Mistry, NB, Ng, CR, Nordberg, E, Ogg, M, Patterson, JR, Peterson, D, Riley, D, Soffer, A, Ward, C, Athanas, M, Avery, P, Jones, CD, Lohner, M, Prescott, C, Yang, S, Yelton, J, Zheng, J, Brandenburg, G, Briere, RA, Gao, YS, Kim, DYJ, Wilson, R, Yamamoto, H, Browder, TE, Li, F, Li, Y, Rodriguez, JL, 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, MacFarlane, DB, McLean, KW, Patel, PM, Sadoff, AJ, Ammar, R, Baringer, P, Bean, A, Besson, D, Coppage, D, Darling, C, Davis, R, Hancock, N, Kotov, S, Kravchenko, I, Kwak, N, Anderson, S, Kubota, Y, Lattery, M, O'Neill, JJ, Patton, S, Poling, R, Riehle, T, Savinov, V, Smith, A, Alam, MS, Athar, SB, Ling, Z, Mahmood, AH, Severini, H, Timm, S, Wappler, F, Anastassov, A, Blinov, S, Duboscq, JE, Fisher, KD, Fujino, D, Fulton, R, Gan, KK, Hart, T, Honscheid, K, Kagan, H, Kass, R, Lee, J, Spencer, MB, Sung, M, Undrus, A, Wanke, R, Wolf, A, Zoeller, MM, Nemati, B, Richichi, SJ, Ross, WR, Skubic, P, Wood, M, Bishai, M, Fast, J, Gerndt, E, Hinson, JW, Menon, N, Miller, DH, Shibata, EI, Shipsey, IPJ, Yurko, M, Gibbons, L, Johnson, SD, Kwon, Y, Roberts, S, Thorndike, EH, Jessop, CP, Lingel, K, Marsiske, H, Perl, ML, Schaffner, SF, Ugolini, D, Wang, R, Zhou, X, Coan, TE, Fadeyev, V, Korolkov, I, Maravin, Y, Narsky, I, Shelkov, V, Staeck, J, Stroynowski, R, Volobouev, I, Ye, J, Artuso, M, Efimov, A, Frasconi, F, Gao, M, Goldberg, M, He, D, Kopp, S, Moneti, GC, Mountain, R, Mukhin, Y, Schuh, S, Skwarnicki, T, Stone, S, Viehhauser, G, Xing, X, Bartelt, J, Csorna, SE, Jain, V, Marka, S, Freyberger, A, Godang, R, Kinoshita, K, Lai, IC, Pomianowski, P, Schrenk, S, Bonvicini, G, Cinabro, D, Greene, R, Perera, LP, Barish, B, Chadha, M, Chan, S, Eigen, G, Miller, JS, O'Grady, C, Schmidtler, M, Urheim, J, Weinstein, AJ & Würthwein, F 1997, 'Search for the decays B0 → D(*)+ D(*)- ', Physical Review Letters, vol. 79, no. 5, pp. 799-803.
Asner DM, Bliss D, Brower WS, Masek G, Paar HP, Sharma V et al. Search for the decays B0 → D(*)+ D(*)- Physical Review Letters. 1997;79(5):799-803.
Asner, D. M. ; Bliss, Daniel ; Brower, W. S. ; Masek, G. ; Paar, H. P. ; Sharma, V. ; Gronberg, J. ; Kutschke, R. ; Lange, D. J. ; Menary, S. ; Morrison, R. J. ; Nelson, H. N. ; Nelson, T. K. ; Qiao, C. ; Richman, J. D. ; Roberts, D. ; Ryd, A. ; Witherell, M. S. ; Balest, R. ; Behrens, B. H. ; Cho, K. ; Ford, W. T. ; Park, H. ; Rankin, P. ; Roy, J. ; Smith, J. G. ; Alexander, J. P. ; Bebek, C. ; Berger, B. E. ; Berkelman, K. ; Bloom, K. ; Cassel, D. G. ; Cho, H. A. ; Coffman, D. M. ; Crowcroft, D. S. ; Dickson, M. ; Drell, P. S. ; Ecklund, K. M. ; Ehrlich, R. ; Elia, R. ; Foland, A. D. ; Gaidarev, P. ; Gittelman, B. ; Gray, S. W. ; Hartill, D. L. ; Heltsley, B. K. ; Hopman, P. I. ; Kandaswamy, J. ; Katayama, N. ; Kim, P. C. ; Kreinick, D. L. ; Lee, T. ; Liu, Y. ; Ludwig, G. S. ; Masui, J. ; Mevissen, J. ; Mistry, N. B. ; Ng, C. R. ; Nordberg, E. ; Ogg, M. ; Patterson, J. R. ; Peterson, D. ; Riley, D. ; Soffer, A. ; Ward, C. ; Athanas, M. ; Avery, P. ; Jones, C. D. ; Lohner, M. ; Prescott, C. ; Yang, S. ; Yelton, J. ; Zheng, J. ; Brandenburg, G. ; Briere, R. A. ; Gao, Y. S. ; Kim, D. Y J ; Wilson, R. ; Yamamoto, H. ; Browder, T. E. ; Li, F. ; Li, Y. ; Rodriguez, J. L. ; Bergfeld, T. ; Eisenstein, B. I. ; Ernst, J. ; Gladding, G. E. ; Gollin, G. D. ; Hans, R. M. ; Johnson, E. ; Karliner, I. ; Marsh, M. A. ; Palmer, M. ; Selen, M. ; Thaler, J. J. ; Edwards, K. W. ; Bellerive, A. ; Janicek, R. ; MacFarlane, D. B. ; McLean, K. W. ; Patel, P. M. ; Sadoff, A. J. ; Ammar, R. ; Baringer, P. ; Bean, A. ; Besson, D. ; Coppage, D. ; Darling, C. ; Davis, R. ; Hancock, N. ; Kotov, S. ; Kravchenko, I. ; Kwak, N. ; Anderson, S. ; Kubota, Y. ; Lattery, M. ; O'Neill, J. J. ; Patton, S. ; Poling, R. ; Riehle, T. ; Savinov, V. ; Smith, A. ; Alam, M. S. ; Athar, S. B. ; Ling, Z. ; Mahmood, A. H. ; Severini, H. ; Timm, S. ; Wappler, F. ; Anastassov, A. ; Blinov, S. ; Duboscq, J. E. ; Fisher, K. D. ; Fujino, D. ; Fulton, R. ; Gan, K. K. ; Hart, T. ; Honscheid, K. ; Kagan, H. ; Kass, R. ; Lee, J. ; Spencer, M. B. ; Sung, M. ; Undrus, A. ; Wanke, R. ; Wolf, A. ; Zoeller, M. M. ; Nemati, B. ; Richichi, S. J. ; Ross, W. R. ; Skubic, P. ; Wood, M. ; Bishai, M. ; Fast, J. ; Gerndt, E. ; Hinson, J. W. ; Menon, N. ; Miller, D. H. ; Shibata, E. I. ; Shipsey, I. P J ; Yurko, M. ; Gibbons, L. ; Johnson, S. D. ; Kwon, Y. ; Roberts, S. ; Thorndike, E. H. ; Jessop, C. P. ; Lingel, K. ; Marsiske, H. ; Perl, M. L. ; Schaffner, S. F. ; Ugolini, D. ; Wang, R. ; Zhou, X. ; Coan, T. E. ; Fadeyev, V. ; Korolkov, I. ; Maravin, Y. ; Narsky, I. ; Shelkov, V. ; Staeck, J. ; Stroynowski, R. ; Volobouev, I. ; Ye, J. ; Artuso, M. ; Efimov, A. ; Frasconi, F. ; Gao, M. ; Goldberg, M. ; He, D. ; Kopp, S. ; Moneti, G. C. ; Mountain, R. ; Mukhin, Y. ; Schuh, S. ; Skwarnicki, T. ; Stone, S. ; Viehhauser, G. ; Xing, X. ; Bartelt, J. ; Csorna, S. E. ; Jain, V. ; Marka, S. ; Freyberger, A. ; Godang, R. ; Kinoshita, K. ; Lai, I. C. ; Pomianowski, P. ; Schrenk, S. ; Bonvicini, G. ; Cinabro, D. ; Greene, R. ; Perera, L. P. ; Barish, B. ; Chadha, M. ; Chan, S. ; Eigen, G. ; Miller, J. S. ; O'Grady, C. ; Schmidtler, M. ; Urheim, J. ; Weinstein, A. J. ; Würthwein, F. / Search for the decays B0 → D(*)+ D(*)- In: Physical Review Letters. 1997 ; Vol. 79, No. 5. pp. 799-803.
@article{2e1a99dcbb684cd6ae7679c8171e7ce7,
title = "Search for the decays B0 → D(*)+ D(*)-",
abstract = "Using the CLEO-II data set we have searched for the decays B0 → D(*)+D(*)-. We observe one candidate signal event for the decay B0 → D*+D*- with an expected background of 0.022 ±0.011 events. This yield corresponds to a branching fraction of B(B0 → D*+D*-) = [5.3-3.7 +7.1(stat) ± 1.0(syst)] × 10-4 and an upper limit of B(B0 → D*+D*-) < 2.2 × 10-3 at the 90{\%} C.L. We see no significant excess of signal above the expected background level in the other modes, and we calculate the 90{\%} C.L. upper limits on the branching fractions to be B(B0 → D*±D*∓) < 1.8 × 10-3 and B(B0 → D+ D-) < 1.2 × 10-3.",
author = "Asner, {D. M.} and Daniel Bliss and Brower, {W. S.} and G. Masek and Paar, {H. P.} and V. Sharma and J. Gronberg and R. Kutschke and Lange, {D. J.} and S. Menary and Morrison, {R. J.} and Nelson, {H. N.} and Nelson, {T. K.} and C. Qiao and Richman, {J. D.} and D. Roberts and A. Ryd and Witherell, {M. S.} and R. Balest and Behrens, {B. H.} and K. Cho and Ford, {W. T.} and H. Park and P. Rankin and J. Roy and Smith, {J. G.} and Alexander, {J. P.} and C. Bebek and Berger, {B. E.} and K. Berkelman and K. Bloom and Cassel, {D. G.} and Cho, {H. A.} and Coffman, {D. M.} and Crowcroft, {D. S.} and M. Dickson and Drell, {P. S.} and Ecklund, {K. M.} and R. Ehrlich and R. Elia and Foland, {A. D.} and P. Gaidarev and B. Gittelman and Gray, {S. W.} and Hartill, {D. L.} and Heltsley, {B. K.} and Hopman, {P. I.} and J. Kandaswamy and N. Katayama and Kim, {P. C.} and Kreinick, {D. L.} and T. Lee and Y. Liu and Ludwig, {G. S.} and J. Masui and J. Mevissen 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 C. Ward and M. Athanas and P. Avery and Jones, {C. D.} and M. Lohner and C. Prescott and S. Yang and J. Yelton and J. Zheng and G. Brandenburg and Briere, {R. A.} and Gao, {Y. S.} and Kim, {D. Y J} and R. Wilson and H. Yamamoto and Browder, {T. E.} and F. Li and Y. Li and Rodriguez, {J. L.} 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 MacFarlane, {D. B.} and McLean, {K. W.} 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 N. Hancock and S. Kotov and I. Kravchenko and N. Kwak and S. Anderson and Y. Kubota and M. Lattery and O'Neill, {J. J.} and S. Patton and R. Poling and T. Riehle and V. Savinov and A. Smith and Alam, {M. S.} and Athar, {S. B.} and Z. Ling and Mahmood, {A. H.} and H. Severini and S. Timm and F. Wappler and A. Anastassov and S. Blinov and Duboscq, {J. E.} and Fisher, {K. D.} and D. Fujino and R. Fulton and Gan, {K. K.} and T. Hart and K. Honscheid and H. Kagan and R. Kass and J. Lee and Spencer, {M. B.} and M. Sung and A. Undrus and R. Wanke and A. Wolf and Zoeller, {M. M.} and B. Nemati and Richichi, {S. J.} and Ross, {W. R.} and P. Skubic and M. Wood and M. Bishai and J. Fast and E. Gerndt and Hinson, {J. W.} and N. Menon and Miller, {D. H.} and Shibata, {E. I.} and Shipsey, {I. P J} and M. Yurko and L. Gibbons and Johnson, {S. D.} and Y. Kwon and S. Roberts and Thorndike, {E. H.} and Jessop, {C. P.} and K. Lingel and H. Marsiske and Perl, {M. L.} and Schaffner, {S. F.} and D. Ugolini and R. Wang and X. Zhou and Coan, {T. E.} and V. Fadeyev and I. Korolkov and Y. Maravin and I. Narsky and V. Shelkov and J. Staeck and R. Stroynowski and I. Volobouev and J. Ye and M. Artuso and A. Efimov and F. Frasconi and M. Gao and M. Goldberg and D. He and S. Kopp and Moneti, {G. C.} and R. Mountain and Y. Mukhin and S. Schuh and T. Skwarnicki and S. Stone and G. Viehhauser and X. Xing and J. Bartelt and Csorna, {S. E.} and V. Jain and S. Marka and A. Freyberger 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 B. Barish and M. Chadha and S. Chan and G. Eigen and Miller, {J. S.} and C. O'Grady and M. Schmidtler and J. Urheim and Weinstein, {A. J.} and F. W{\"u}rthwein",
year = "1997",
language = "English (US)",
volume = "79",
pages = "799--803",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
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TY - JOUR

T1 - Search for the decays B0 → D(*)+ D(*)-

AU - Asner, D. M.

AU - Bliss, Daniel

AU - Brower, W. S.

AU - Masek, G.

AU - Paar, H. P.

AU - Sharma, V.

AU - Gronberg, J.

AU - Kutschke, R.

AU - Lange, D. J.

AU - Menary, S.

AU - Morrison, R. J.

AU - Nelson, H. N.

AU - Nelson, T. K.

AU - Qiao, C.

AU - Richman, J. D.

AU - Roberts, D.

AU - Ryd, A.

AU - Witherell, M. S.

AU - Balest, R.

AU - Behrens, B. H.

AU - Cho, K.

AU - Ford, W. T.

AU - Park, H.

AU - Rankin, P.

AU - Roy, J.

AU - Smith, J. G.

AU - Alexander, J. P.

AU - Bebek, C.

AU - Berger, B. E.

AU - Berkelman, K.

AU - Bloom, K.

AU - Cassel, D. G.

AU - Cho, H. A.

AU - Coffman, D. M.

AU - Crowcroft, D. S.

AU - Dickson, M.

AU - Drell, P. S.

AU - Ecklund, K. M.

AU - Ehrlich, R.

AU - Elia, R.

AU - Foland, A. D.

AU - Gaidarev, P.

AU - Gittelman, B.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Hopman, P. I.

AU - Kandaswamy, J.

AU - Katayama, N.

AU - Kim, P. C.

AU - Kreinick, D. L.

AU - Lee, T.

AU - Liu, Y.

AU - Ludwig, G. S.

AU - Masui, J.

AU - Mevissen, J.

AU - Mistry, N. B.

AU - Ng, C. R.

AU - Nordberg, E.

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PY - 1997

Y1 - 1997

N2 - Using the CLEO-II data set we have searched for the decays B0 → D(*)+D(*)-. We observe one candidate signal event for the decay B0 → D*+D*- with an expected background of 0.022 ±0.011 events. This yield corresponds to a branching fraction of B(B0 → D*+D*-) = [5.3-3.7 +7.1(stat) ± 1.0(syst)] × 10-4 and an upper limit of B(B0 → D*+D*-) < 2.2 × 10-3 at the 90% C.L. We see no significant excess of signal above the expected background level in the other modes, and we calculate the 90% C.L. upper limits on the branching fractions to be B(B0 → D*±D*∓) < 1.8 × 10-3 and B(B0 → D+ D-) < 1.2 × 10-3.

AB - Using the CLEO-II data set we have searched for the decays B0 → D(*)+D(*)-. We observe one candidate signal event for the decay B0 → D*+D*- with an expected background of 0.022 ±0.011 events. This yield corresponds to a branching fraction of B(B0 → D*+D*-) = [5.3-3.7 +7.1(stat) ± 1.0(syst)] × 10-4 and an upper limit of B(B0 → D*+D*-) < 2.2 × 10-3 at the 90% C.L. We see no significant excess of signal above the expected background level in the other modes, and we calculate the 90% C.L. upper limits on the branching fractions to be B(B0 → D*±D*∓) < 1.8 × 10-3 and B(B0 → D+ D-) < 1.2 × 10-3.

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M3 - Article

VL - 79

SP - 799

EP - 803

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 5

ER -