Measurement of the muonic branching fractions of the narrow upsilon resonances

G. S. Adams; M. Chasse; M. Cravey; J. P. Cummings; I. Danko; J. Napolitano; D. Cronin-Hennessy; C. S. Park; W. Park; J. B. Thayer; E. H. Thorndike; T. E. Coan; Y. S. Gao; F. Liu; R. Stroynowski; M. Artuso; C. Boulahouache; S. Blusk; J. Butt; E. Dambasuren; O. Dorjkhaidav; N. Menaa; R. Mountain; H. Muramatsu; R. Nandakumar; R. Redjimi; R. Sia; T. Skwarnicki; S. Stone; J. C. Wang; K. Zhang; S. E. Csorna; G. Bonvicini; D. Cinabro; M. Dubrovin; A. Bornheim; S. P. Pappas; A. J. Weinstein; R. A. Briere; G. P. Chen; T. Ferguson; G. Tatishvili; H. Vogel; M. E. Watkins; N. E. Adam; J. P. Alexander; K. Berkelman; D. G. Cassel; J. E. Duboscq; K. M. Ecklund; R. Ehrlich; L. Fields; R. S. Galik; L. Gibbons; B. Gittelman; R. Gray; S. W. Gray; D. L. Hartill; B. K. Heltsley; D. Hertz; L. Hsu; C. D. Jones; J. Kandaswamy; D. L. Kreinick; V. E. Kuznetsov; H. Mahlke-Krüger; T. O. Meyer; P. U.E. Onyisi; J. R. Patterson; D. Peterson; J. Pivarski; D. Riley; J. L. Rosner; A. Ryd; A. J. Sadoff; H. Schwarthoff; M. R. Shepherd; W. M. Sun; J. G. Thayer; D. Urner; T. Wilksen; M. Weinberger; S. B. Athar; P. Avery; L. Breva-Newell; R. Patel; V. Potlia; H. Stoeck; J. Yelton; P. Rubin; C. Cawlfield; B. I. Eisenstein; G. D. Gollin; I. Karliner; D. Kim; N. Lowrey; P. Naik; C. Sedlack; M. Selen; Jon J Thaler; J. Williams; J. Wiss; K. W. Edwards; D. Besson; K. Y. Gao; D. T. Gong; Y. Kubota; B. W. Lang; S. Z. Li; R. Poling; A. W. Scott; A. Smith; C. J. Stepaniak; J. Urheim; Z. Metreveli; K. K. Seth; A. Tomaradze; P. Zweber; J. Ernst; A. H. Mahmood; K. Arms; K. K. Gan; D. M. Asner; S. A. Dytman; S. Mehrabyan; J. A. Mueller; V. Savinov; Z. Li; A. Lopez; H. Mendez; J. Ramirez; G. S. Huang; D. H. Miller; V. Pavlunin; B. Sanghi; E. I. Shibata; I. P.J. Shipsey

doi:10.1103/PhysRevLett.94.012001

Measurement of the muonic branching fractions of the narrow upsilon resonances

G. S. Adams, M. Chasse, M. Cravey, J. P. Cummings, I. Danko, J. Napolitano, D. Cronin-Hennessy, C. S. Park, W. Park, J. B. Thayer, E. H. Thorndike, T. E. Coan, Y. S. Gao, F. Liu, R. Stroynowski, M. Artuso, C. Boulahouache, S. Blusk, J. Butt, E. DambasurenO. Dorjkhaidav, N. Menaa, R. Mountain, H. Muramatsu, R. Nandakumar, R. Redjimi, R. Sia, T. Skwarnicki, S. Stone, J. C. Wang, K. Zhang, S. E. Csorna, G. Bonvicini, D. Cinabro, M. Dubrovin, A. Bornheim, S. P. Pappas, A. J. Weinstein, R. A. Briere, G. P. Chen, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, N. E. Adam, J. P. Alexander, K. Berkelman, D. G. Cassel, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, L. Fields, R. S. Galik, L. Gibbons, B. Gittelman, R. Gray, S. W. Gray, D. L. Hartill, B. K. Heltsley, D. Hertz, L. Hsu, C. D. Jones, J. Kandaswamy, D. L. Kreinick, V. E. Kuznetsov, H. Mahlke-Krüger, T. O. Meyer, P. U.E. Onyisi, J. R. Patterson, D. Peterson, J. Pivarski, D. Riley, J. L. Rosner, A. Ryd, A. J. Sadoff, H. Schwarthoff, M. R. Shepherd, W. M. Sun, J. G. Thayer, D. Urner, T. Wilksen, M. Weinberger, S. B. Athar, P. Avery, L. Breva-Newell, R. Patel, V. Potlia, H. Stoeck, J. Yelton, P. Rubin, C. Cawlfield, B. I. Eisenstein, G. D. Gollin, I. Karliner, D. Kim, N. Lowrey, P. Naik, C. Sedlack, M. Selen, Jon J Thaler, J. Williams, J. Wiss, K. W. Edwards, D. Besson, K. Y. Gao, D. T. Gong, Y. Kubota, B. W. Lang, S. Z. Li, R. Poling, A. W. Scott, A. Smith, C. J. Stepaniak, J. Urheim, Z. Metreveli, K. K. Seth, A. Tomaradze, P. Zweber, J. Ernst, A. H. Mahmood, K. Arms, K. K. Gan, D. M. Asner, S. A. Dytman, S. Mehrabyan, J. A. Mueller, V. Savinov, Z. Li, A. Lopez, H. Mendez, J. Ramirez, G. S. Huang, D. H. Miller, V. Pavlunin, B. Sanghi, E. I. Shibata, I. P.J. Shipsey

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

Abstract

The decay branching fractions of the three narrow υ resonances to μ⁺ μ^- have been measured by analyzing about 4.3 fb^-1 e⁺ e^- data collected with the CLEO III detector. The branching fraction 25(υ(1S) → μ⁺ μ^-) = (2.49 ± 0.02 ± 0.07)% is consistent with the current world average, but ℬ(υ(2S) → μ⁺ μ^-) = (2.03 ± 0.03 ± 0.08)% and ℬ(υ(3S) → μ⁺ μ^-) = (2.39 ± 0.07 ± 0.10)% are significantly larger than prior results. These new muonic branching fractions imply a narrower total decay width for the υ(2S) and υ(3S) resonances and lower other branching fractions that rely on these decays in their determination.

Original language	English (US)
Article number	012001
Journal	Physical review letters
Volume	94
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.94.012001
State	Published - Jan 14 2005

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.94.012001

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Adams, G. S., Chasse, M., Cravey, M., Cummings, J. P., Danko, I., Napolitano, J., Cronin-Hennessy, D., Park, C. S., Park, W., Thayer, J. B., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Stroynowski, R., Artuso, M., Boulahouache, C., Blusk, S., Butt, J., ... Shipsey, I. P. J. (2005). Measurement of the muonic branching fractions of the narrow upsilon resonances. Physical review letters, 94(1), [012001]. https://doi.org/10.1103/PhysRevLett.94.012001

Measurement of the muonic branching fractions of the narrow upsilon resonances. / Adams, G. S.; Chasse, M.; Cravey, M.; Cummings, J. P.; Danko, I.; Napolitano, J.; Cronin-Hennessy, D.; Park, C. S.; Park, W.; Thayer, J. B.; Thorndike, E. H.; Coan, T. E.; Gao, Y. S.; Liu, F.; Stroynowski, R.; Artuso, M.; Boulahouache, C.; Blusk, S.; Butt, J.; Dambasuren, E.; Dorjkhaidav, O.; Menaa, N.; Mountain, R.; Muramatsu, H.; Nandakumar, R.; Redjimi, R.; Sia, R.; Skwarnicki, T.; Stone, S.; Wang, J. C.; Zhang, K.; Csorna, S. E.; Bonvicini, G.; Cinabro, D.; Dubrovin, M.; Bornheim, A.; Pappas, S. P.; Weinstein, A. J.; Briere, R. A.; Chen, G. P.; Ferguson, T.; Tatishvili, G.; Vogel, H.; Watkins, M. E.; Adam, N. E.; Alexander, J. P.; Berkelman, K.; Cassel, D. G.; Duboscq, J. E.; Ecklund, K. M.; Ehrlich, R.; Fields, L.; Galik, R. S.; Gibbons, L.; Gittelman, B.; Gray, R.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Hertz, D.; Hsu, L.; Jones, C. D.; Kandaswamy, J.; Kreinick, D. L.; Kuznetsov, V. E.; Mahlke-Krüger, H.; Meyer, T. O.; Onyisi, P. U.E.; Patterson, J. R.; Peterson, D.; Pivarski, J.; Riley, D.; Rosner, J. L.; Ryd, A.; Sadoff, A. J.; Schwarthoff, H.; Shepherd, M. R.; Sun, W. M.; Thayer, J. G.; Urner, D.; Wilksen, T.; Weinberger, M.; Athar, S. B.; Avery, P.; Breva-Newell, L.; Patel, R.; Potlia, V.; Stoeck, H.; Yelton, J.; Rubin, P.; Cawlfield, C.; Eisenstein, B. I.; Gollin, G. D.; Karliner, I.; Kim, D.; Lowrey, N.; Naik, P.; Sedlack, C.; Selen, M.; Thaler, Jon J; Williams, J.; Wiss, J.; Edwards, K. W.; Besson, D.; Gao, K. Y.; Gong, D. T.; Kubota, Y.; Lang, B. W.; Li, S. Z.; Poling, R.; Scott, A. W.; Smith, A.; Stepaniak, C. J.; Urheim, J.; Metreveli, Z.; Seth, K. K.; Tomaradze, A.; Zweber, P.; Ernst, J.; Mahmood, A. H.; Arms, K.; Gan, K. K.; Asner, D. M.; Dytman, S. A.; Mehrabyan, S.; Mueller, J. A.; Savinov, V.; Li, Z.; Lopez, A.; Mendez, H.; Ramirez, J.; Huang, G. S.; Miller, D. H.; Pavlunin, V.; Sanghi, B.; Shibata, E. I.; Shipsey, I. P.J.

In: Physical review letters, Vol. 94, No. 1, 012001, 14.01.2005.

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

Adams, GS, Chasse, M, Cravey, M, Cummings, JP, Danko, I, Napolitano, J, Cronin-Hennessy, D, Park, CS, Park, W, Thayer, JB, Thorndike, EH, Coan, TE, Gao, YS, Liu, F, Stroynowski, R, Artuso, M, Boulahouache, C, Blusk, S, Butt, J, Dambasuren, E, Dorjkhaidav, O, Menaa, N, Mountain, R, Muramatsu, H, Nandakumar, R, Redjimi, R, Sia, R, Skwarnicki, T, Stone, S, Wang, JC, Zhang, K, Csorna, SE, Bonvicini, G, Cinabro, D, Dubrovin, M, Bornheim, A, Pappas, SP, Weinstein, AJ, Briere, RA, Chen, GP, Ferguson, T, Tatishvili, G, Vogel, H, Watkins, ME, Adam, NE, Alexander, JP, Berkelman, K, Cassel, DG, Duboscq, JE, Ecklund, KM, Ehrlich, R, Fields, L, Galik, RS, Gibbons, L, Gittelman, B, Gray, R, Gray, SW, Hartill, DL, Heltsley, BK, Hertz, D, Hsu, L, Jones, CD, Kandaswamy, J, Kreinick, DL, Kuznetsov, VE, Mahlke-Krüger, H, Meyer, TO, Onyisi, PUE, Patterson, JR, Peterson, D, Pivarski, J, Riley, D, Rosner, JL, Ryd, A, Sadoff, AJ, Schwarthoff, H, Shepherd, MR, Sun, WM, Thayer, JG, Urner, D, Wilksen, T, Weinberger, M, Athar, SB, Avery, P, Breva-Newell, L, Patel, R, Potlia, V, Stoeck, H, Yelton, J, Rubin, P, Cawlfield, C, Eisenstein, BI, Gollin, GD, Karliner, I, Kim, D, Lowrey, N, Naik, P, Sedlack, C, Selen, M, Thaler, JJ, Williams, J, Wiss, J, Edwards, KW, Besson, D, Gao, KY, Gong, DT, Kubota, Y, Lang, BW, Li, SZ, Poling, R, Scott, AW, Smith, A, Stepaniak, CJ, Urheim, J, Metreveli, Z, Seth, KK, Tomaradze, A, Zweber, P, Ernst, J, Mahmood, AH, Arms, K, Gan, KK, Asner, DM, Dytman, SA, Mehrabyan, S, Mueller, JA, Savinov, V, Li, Z, Lopez, A, Mendez, H, Ramirez, J, Huang, GS, Miller, DH, Pavlunin, V, Sanghi, B, Shibata, EI & Shipsey, IPJ 2005, 'Measurement of the muonic branching fractions of the narrow upsilon resonances', Physical review letters, vol. 94, no. 1, 012001. https://doi.org/10.1103/PhysRevLett.94.012001

Adams, G. S. ; Chasse, M. ; Cravey, M. ; Cummings, J. P. ; Danko, I. ; Napolitano, J. ; Cronin-Hennessy, D. ; Park, C. S. ; Park, W. ; Thayer, J. B. ; Thorndike, E. H. ; Coan, T. E. ; Gao, Y. S. ; Liu, F. ; Stroynowski, R. ; Artuso, M. ; Boulahouache, C. ; Blusk, S. ; Butt, J. ; Dambasuren, E. ; Dorjkhaidav, O. ; Menaa, N. ; Mountain, R. ; Muramatsu, H. ; Nandakumar, R. ; Redjimi, R. ; Sia, R. ; Skwarnicki, T. ; Stone, S. ; Wang, J. C. ; Zhang, K. ; Csorna, S. E. ; Bonvicini, G. ; Cinabro, D. ; Dubrovin, M. ; Bornheim, A. ; Pappas, S. P. ; Weinstein, A. J. ; Briere, R. A. ; Chen, G. P. ; Ferguson, T. ; Tatishvili, G. ; Vogel, H. ; Watkins, M. E. ; Adam, N. E. ; Alexander, J. P. ; Berkelman, K. ; Cassel, D. G. ; Duboscq, J. E. ; Ecklund, K. M. ; Ehrlich, R. ; Fields, L. ; Galik, R. S. ; Gibbons, L. ; Gittelman, B. ; Gray, R. ; Gray, S. W. ; Hartill, D. L. ; Heltsley, B. K. ; Hertz, D. ; Hsu, L. ; Jones, C. D. ; Kandaswamy, J. ; Kreinick, D. L. ; Kuznetsov, V. E. ; Mahlke-Krüger, H. ; Meyer, T. O. ; Onyisi, P. U.E. ; Patterson, J. R. ; Peterson, D. ; Pivarski, J. ; Riley, D. ; Rosner, J. L. ; Ryd, A. ; Sadoff, A. J. ; Schwarthoff, H. ; Shepherd, M. R. ; Sun, W. M. ; Thayer, J. G. ; Urner, D. ; Wilksen, T. ; Weinberger, M. ; Athar, S. B. ; Avery, P. ; Breva-Newell, L. ; Patel, R. ; Potlia, V. ; Stoeck, H. ; Yelton, J. ; Rubin, P. ; Cawlfield, C. ; Eisenstein, B. I. ; Gollin, G. D. ; Karliner, I. ; Kim, D. ; Lowrey, N. ; Naik, P. ; Sedlack, C. ; Selen, M. ; Thaler, Jon J ; Williams, J. ; Wiss, J. ; Edwards, K. W. ; Besson, D. ; Gao, K. Y. ; Gong, D. T. ; Kubota, Y. ; Lang, B. W. ; Li, S. Z. ; Poling, R. ; Scott, A. W. ; Smith, A. ; Stepaniak, C. J. ; Urheim, J. ; Metreveli, Z. ; Seth, K. K. ; Tomaradze, A. ; Zweber, P. ; Ernst, J. ; Mahmood, A. H. ; Arms, K. ; Gan, K. K. ; Asner, D. M. ; Dytman, S. A. ; Mehrabyan, S. ; Mueller, J. A. ; Savinov, V. ; Li, Z. ; Lopez, A. ; Mendez, H. ; Ramirez, J. ; Huang, G. S. ; Miller, D. H. ; Pavlunin, V. ; Sanghi, B. ; Shibata, E. I. ; Shipsey, I. P.J. / Measurement of the muonic branching fractions of the narrow upsilon resonances. In: Physical review letters. 2005 ; Vol. 94, No. 1.

@article{b20fad5b363c47a381ef04854d3c90e5,

title = "Measurement of the muonic branching fractions of the narrow upsilon resonances",

abstract = "The decay branching fractions of the three narrow υ resonances to μ+ μ- have been measured by analyzing about 4.3 fb-1 e+ e- data collected with the CLEO III detector. The branching fraction 25(υ(1S) → μ+ μ-) = (2.49 ± 0.02 ± 0.07)% is consistent with the current world average, but ℬ(υ(2S) → μ+ μ-) = (2.03 ± 0.03 ± 0.08)% and ℬ(υ(3S) → μ+ μ-) = (2.39 ± 0.07 ± 0.10)% are significantly larger than prior results. These new muonic branching fractions imply a narrower total decay width for the υ(2S) and υ(3S) resonances and lower other branching fractions that rely on these decays in their determination.",

author = "Adams, {G. S.} and M. Chasse and M. Cravey and Cummings, {J. P.} and I. Danko and J. Napolitano and D. Cronin-Hennessy and Park, {C. S.} and W. Park and Thayer, {J. B.} and Thorndike, {E. H.} and Coan, {T. E.} and Gao, {Y. S.} and F. Liu and R. Stroynowski and M. Artuso and C. Boulahouache and S. Blusk and J. Butt and E. Dambasuren and O. Dorjkhaidav and N. Menaa and R. Mountain and H. Muramatsu and R. Nandakumar and R. Redjimi and R. Sia and T. Skwarnicki and S. Stone and Wang, {J. C.} and K. Zhang and Csorna, {S. E.} and G. Bonvicini and D. Cinabro and M. Dubrovin and A. Bornheim and Pappas, {S. P.} and Weinstein, {A. J.} and Briere, {R. A.} and Chen, {G. P.} and T. Ferguson and G. Tatishvili and H. Vogel and Watkins, {M. E.} and Adam, {N. E.} and Alexander, {J. P.} and K. Berkelman and Cassel, {D. G.} and Duboscq, {J. E.} and Ecklund, {K. M.} and R. Ehrlich and L. Fields and Galik, {R. S.} and L. Gibbons and B. Gittelman and R. Gray and Gray, {S. W.} and Hartill, {D. L.} and Heltsley, {B. K.} and D. Hertz and L. Hsu and Jones, {C. D.} and J. Kandaswamy and Kreinick, {D. L.} and Kuznetsov, {V. E.} and H. Mahlke-Kr{\"u}ger and Meyer, {T. O.} and Onyisi, {P. U.E.} and Patterson, {J. R.} and D. Peterson and J. Pivarski and D. Riley and Rosner, {J. L.} and A. Ryd and Sadoff, {A. J.} and H. Schwarthoff and Shepherd, {M. R.} and Sun, {W. M.} and Thayer, {J. G.} and D. Urner and T. Wilksen and M. Weinberger and Athar, {S. B.} and P. Avery and L. Breva-Newell and R. Patel and V. Potlia and H. Stoeck and J. Yelton and P. Rubin and C. Cawlfield and Eisenstein, {B. I.} and Gollin, {G. D.} and I. Karliner and D. Kim and N. Lowrey and P. Naik and C. Sedlack and M. Selen and Thaler, {Jon J} and J. Williams and J. Wiss and Edwards, {K. W.} and D. Besson and Gao, {K. Y.} and Gong, {D. T.} and Y. Kubota and Lang, {B. W.} and Li, {S. Z.} and R. Poling and Scott, {A. W.} and A. Smith and Stepaniak, {C. J.} and J. Urheim and Z. Metreveli and Seth, {K. K.} and A. Tomaradze and P. Zweber and J. Ernst and Mahmood, {A. H.} and K. Arms and Gan, {K. K.} and Asner, {D. M.} and Dytman, {S. A.} and S. Mehrabyan and Mueller, {J. A.} and V. Savinov and Z. Li and A. Lopez and H. Mendez and J. Ramirez and Huang, {G. S.} and Miller, {D. H.} and V. Pavlunin and B. Sanghi and Shibata, {E. I.} and Shipsey, {I. P.J.}",

year = "2005",

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doi = "10.1103/PhysRevLett.94.012001",

language = "English (US)",

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TY - JOUR

T1 - Measurement of the muonic branching fractions of the narrow upsilon resonances

AU - Adams, G. S.

AU - Chasse, M.

AU - Cravey, M.

AU - Cummings, J. P.

AU - Danko, I.

AU - Napolitano, J.

AU - Cronin-Hennessy, D.

AU - Park, C. S.

AU - Park, W.

AU - Thayer, J. B.

AU - Thorndike, E. H.

AU - Coan, T. E.

AU - Gao, Y. S.

AU - Liu, F.

AU - Stroynowski, R.

AU - Artuso, M.

AU - Boulahouache, C.

AU - Blusk, S.

AU - Butt, J.

AU - Dambasuren, E.

AU - Dorjkhaidav, O.

AU - Menaa, N.

AU - Mountain, R.

AU - Muramatsu, H.

AU - Nandakumar, R.

AU - Redjimi, R.

AU - Sia, R.

AU - Skwarnicki, T.

AU - Stone, S.

AU - Wang, J. C.

AU - Zhang, K.

AU - Csorna, S. E.

AU - Bonvicini, G.

AU - Cinabro, D.

AU - Dubrovin, M.

AU - Bornheim, A.

AU - Pappas, S. P.

AU - Weinstein, A. J.

AU - Briere, R. A.

AU - Chen, G. P.

AU - Ferguson, T.

AU - Tatishvili, G.

AU - Vogel, H.

AU - Watkins, M. E.

AU - Adam, N. E.

AU - Alexander, J. P.

AU - Berkelman, K.

AU - Cassel, D. G.

AU - Duboscq, J. E.

AU - Ecklund, K. M.

AU - Ehrlich, R.

AU - Fields, L.

AU - Galik, R. S.

AU - Gibbons, L.

AU - Gittelman, B.

AU - Gray, R.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Hertz, D.

AU - Hsu, L.

AU - Jones, C. D.

AU - Kandaswamy, J.

AU - Kreinick, D. L.

AU - Kuznetsov, V. E.

AU - Mahlke-Krüger, H.

AU - Meyer, T. O.

AU - Onyisi, P. U.E.

AU - Patterson, J. R.

AU - Peterson, D.

AU - Pivarski, J.

AU - Riley, D.

AU - Rosner, J. L.

AU - Ryd, A.

AU - Sadoff, A. J.

AU - Schwarthoff, H.

AU - Shepherd, M. R.

AU - Sun, W. M.

AU - Thayer, J. G.

AU - Urner, D.

AU - Wilksen, T.

AU - Weinberger, M.

AU - Athar, S. B.

AU - Avery, P.

AU - Breva-Newell, L.

AU - Patel, R.

AU - Potlia, V.

AU - Stoeck, H.

AU - Yelton, J.

AU - Rubin, P.

AU - Cawlfield, C.

AU - Eisenstein, B. I.

AU - Gollin, G. D.

AU - Karliner, I.

AU - Kim, D.

AU - Lowrey, N.

AU - Naik, P.

AU - Sedlack, C.

AU - Selen, M.

AU - Thaler, Jon J

AU - Williams, J.

AU - Wiss, J.

AU - Edwards, K. W.

AU - Besson, D.

AU - Gao, K. Y.

AU - Gong, D. T.

AU - Kubota, Y.

AU - Lang, B. W.

AU - Li, S. Z.

AU - Poling, R.

AU - Scott, A. W.

AU - Smith, A.

AU - Stepaniak, C. J.

AU - Urheim, J.

AU - Metreveli, Z.

AU - Seth, K. K.

AU - Tomaradze, A.

AU - Zweber, P.

AU - Ernst, J.

AU - Mahmood, A. H.

AU - Arms, K.

AU - Gan, K. K.

AU - Asner, D. M.

AU - Dytman, S. A.

AU - Mehrabyan, S.

AU - Mueller, J. A.

AU - Savinov, V.

AU - Li, Z.

AU - Lopez, A.

AU - Mendez, H.

AU - Ramirez, J.

AU - Huang, G. S.

AU - Miller, D. H.

AU - Pavlunin, V.

AU - Sanghi, B.

AU - Shibata, E. I.

AU - Shipsey, I. P.J.

PY - 2005/1/14

Y1 - 2005/1/14

N2 - The decay branching fractions of the three narrow υ resonances to μ+ μ- have been measured by analyzing about 4.3 fb-1 e+ e- data collected with the CLEO III detector. The branching fraction 25(υ(1S) → μ+ μ-) = (2.49 ± 0.02 ± 0.07)% is consistent with the current world average, but ℬ(υ(2S) → μ+ μ-) = (2.03 ± 0.03 ± 0.08)% and ℬ(υ(3S) → μ+ μ-) = (2.39 ± 0.07 ± 0.10)% are significantly larger than prior results. These new muonic branching fractions imply a narrower total decay width for the υ(2S) and υ(3S) resonances and lower other branching fractions that rely on these decays in their determination.

AB - The decay branching fractions of the three narrow υ resonances to μ+ μ- have been measured by analyzing about 4.3 fb-1 e+ e- data collected with the CLEO III detector. The branching fraction 25(υ(1S) → μ+ μ-) = (2.49 ± 0.02 ± 0.07)% is consistent with the current world average, but ℬ(υ(2S) → μ+ μ-) = (2.03 ± 0.03 ± 0.08)% and ℬ(υ(3S) → μ+ μ-) = (2.39 ± 0.07 ± 0.10)% are significantly larger than prior results. These new muonic branching fractions imply a narrower total decay width for the υ(2S) and υ(3S) resonances and lower other branching fractions that rely on these decays in their determination.

UR - http://www.scopus.com/inward/record.url?scp=18144382664&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=18144382664&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.94.012001

DO - 10.1103/PhysRevLett.94.012001

M3 - Article

AN - SCOPUS:18144382664

VL - 94

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 1

M1 - 012001

ER -

Measurement of the muonic branching fractions of the narrow upsilon resonances

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