Measurement of B→Ds(*)+D*(*) branching fractions

S. Ahmed; M. S. Alam; S. B. Athar; L. Jian; L. Ling; M. Saleem; S. Timm; F. Wappler; A. Anastassov; J. E. Duboscq; E. Eckhart; K. K. Gan; C. Gwon; T. Hart; K. Honscheid; D. Hufnagel; H. Kagan; R. Kass; T. K. Pedlar; H. Schwarthoff; J. B. Thayer; E. Von Toerne; M. M. Zoeller; S. J. Richichi; H. Severini; P. Skubic; A. Undrus; S. Chen; J. Fast; J. W. Hinson; J. Lee; D. H. Miller; E. I. Shibata; I. P J Shipsey; V. Pavlunin; D. Cronin-Hennessy; A. L. Lyon; E. H. Thorndike; C. P. Jessop; H. Marsiske; M. L. Perl; V. Savinov; X. Zhou; T. E. Coan; V. Fadeyev; Y. Maravin; I. Narsky; R. Stroynowski; J. Ye; T. Wlodek; M. Artuso; R. Ayad; C. Boulahouache; K. Bukin; E. Dambasuren; S. Karamov; G. Majumder; G. C. Moneti; R. Mountain; S. Schuh; T. Skwarnicki; S. Stone; G. Viehhauser; J. C. Wang; A. Wolf; J. Wu; S. Kopp; A. H. Mahmood; S. E. Csorna; I. Danko; K. W. McLean; Sz Márka; Z. Xu; R. Godang; K. Kinoshita; I. C. Lai; S. Schrenk; G. Bonvicini; D. Cinabro; S. McGee; L. P. Perera; G. J. Zhou; E. Lipeles; S. P. Pappas; M. Schmidtler; A. Shapiro; W. M. Sun; A. J. Weinstein; F. Würthwein; D. E. Jaffe; G. Masek; H. P. Paar; E. M. Potter; S. Prell; V. Sharma; D. M. Asner; A. Eppich; T. S. Hill; R. J. Morrison; H. N. Nelson; J. D. Richman; M. S. Witherell; R. A. Briere; G. P. Chen; B. H. Behrens; W. T. Ford; A. Gritsan; J. Roy; J. G. Smith; J. P. Alexander; R. Baker; C. Bebek; B. E. Berger; K. Berkelman; F. Blanc; V. Boisvert; D. G. Cassel; M. Dickson; P. S. Drell; K. M. Ecklund; R. Ehrlich; A. D. Foland; P. Gaidarev; L. Gibbons; B. Gittelman; S. W. Gray; D. L. Hartill; B. K. Heltsley; P. I. Hopman; C. D. Jones; D. L. Kreinick; M. Lohner; A. Magerkurth; T. O. Meyer; N. B. Mistry; E. Nordberg; J. R. Patterson; D. Peterson; D. Riley; J. G. Thayer; D. Urner; B. Valant-Spaight; A. Warburton; P. Avery; C. Prescott; A. I. Rubiera; J. Yelton; J. Zheng; G. Brandenburg; A. Ershov; Y. S. Gao; D. Y J Kim; R. Wilson; T. E. Browder; Y. Li; J. L. Rodriguez; H. Yamamoto; 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; C. Plager; C. Sedlack; M. Selen; J. J. Thaler; J. Williams; K. W. Edwards; R. Janicek; P. M. Patel; A. J. Sadoff; R. Ammar; A. Bean; D. Besson; R. Davis; N. Kwak; X. Zhao; S. Anderson; V. V. Frolov; Y. Kubota; S. J. Lee; R. Mahapatra; J. J. O'Neill; R. Poling; T. Riehle; A. Smith; C. J. Stepaniak; J. Urheim

doi:10.1103/PhysRevD.62.112003

Measurement of B→D_s()⁺D(*) branching fractions

S. Ahmed, M. S. Alam, S. B. Athar, L. Jian, L. Ling, M. Saleem, S. Timm, F. Wappler, A. Anastassov, J. E. Duboscq, E. Eckhart, K. K. Gan, C. Gwon, T. Hart, K. Honscheid, D. Hufnagel, H. Kagan, R. Kass, T. K. Pedlar, H. SchwarthoffJ. B. Thayer, E. Von Toerne, M. M. Zoeller, S. J. Richichi, H. Severini, P. Skubic, A. Undrus, S. Chen, J. Fast, J. W. Hinson, J. Lee, D. H. Miller, E. I. Shibata, I. P J Shipsey, V. Pavlunin, D. Cronin-Hennessy, A. L. Lyon, E. H. Thorndike, C. P. Jessop, H. Marsiske, M. L. Perl, V. Savinov, X. Zhou, T. E. Coan, V. Fadeyev, Y. Maravin, I. Narsky, R. Stroynowski, J. Ye, T. Wlodek, M. Artuso, R. Ayad, C. Boulahouache, K. Bukin, E. Dambasuren, S. Karamov, G. Majumder, G. C. Moneti, R. Mountain, S. Schuh, T. Skwarnicki, S. Stone, G. Viehhauser, J. C. Wang, A. Wolf, J. Wu, S. Kopp, A. H. Mahmood, S. E. Csorna, I. Danko, K. W. McLean, Sz Márka, Z. Xu, R. Godang, K. Kinoshita, I. C. Lai, S. Schrenk, G. Bonvicini, D. Cinabro, S. McGee, L. P. Perera, G. J. Zhou, E. Lipeles, S. P. Pappas, M. Schmidtler, A. Shapiro, W. M. Sun, A. J. Weinstein, F. Würthwein, D. E. Jaffe, G. Masek, H. P. Paar, E. M. Potter, S. Prell, V. Sharma, D. M. Asner, A. Eppich, T. S. Hill, R. J. Morrison, H. N. Nelson, J. D. Richman, M. S. Witherell, R. A. Briere, G. P. Chen, B. H. Behrens, W. T. Ford, A. Gritsan, J. Roy, J. G. Smith, J. P. Alexander, R. Baker, C. Bebek, B. E. Berger, K. Berkelman, F. Blanc, V. Boisvert, D. G. Cassel, M. Dickson, P. S. Drell, K. M. Ecklund, R. Ehrlich, A. D. Foland, P. Gaidarev, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, P. I. Hopman, C. D. Jones, D. L. Kreinick, M. Lohner, A. Magerkurth, T. O. Meyer, N. B. Mistry, E. Nordberg, J. R. Patterson, D. Peterson, D. Riley, J. G. Thayer, D. Urner, B. Valant-Spaight, A. Warburton, P. Avery, C. Prescott, A. I. Rubiera, J. Yelton, J. Zheng, G. Brandenburg, A. Ershov, Y. S. Gao, D. Y J Kim, R. Wilson, T. E. Browder, Y. Li, J. L. Rodriguez, H. Yamamoto, 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, C. Plager, C. Sedlack, M. Selen, J. J. Thaler, J. Williams, K. W. Edwards, R. Janicek, P. M. Patel, A. J. Sadoff, R. Ammar, A. Bean, D. Besson, R. Davis, N. Kwak, X. Zhao, S. Anderson, V. V. Frolov, Y. Kubota, S. J. Lee, R. Mahapatra, J. J. O'Neill, R. Poling, T. Riehle, A. Smith, C. J. Stepaniak, J. Urheim

Physics and Astronomy (Twin Cities)

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

22 Scopus citations

Abstract

This article describes improved measurements by CLEO of the B⁰→D_s⁺D*^- and B⁰→D_s*⁺D*^- branching fractions, and first evidence for the decay B⁺→D_s(*)⁺D̄** ⁰, where D̄**⁰ represents the sum of the D̄₁(2420)⁰, D̄₂*(2460)⁰, and D̄₁(j = 1/2)⁰ L = 1 charm meson states. Also reported is the first measurement of the D_s*⁺ polarization in the decay B⁰→D_s*⁺D*^-. A partial reconstruction technique, employing only the fully reconstructed D_s⁺ and slow pion π_s^- from the D*^-→D̄⁰π_s^- decay, enhances sensitivity. The observed branching fractions are B(B⁰→D_s⁺D*^-) = (1.10±0.18±0.10±0.28)%, B(B⁰→D_s*⁺D*^-) = (1.82±0.37±0.24 ±0.46)% , and B(B⁺→D_s(*) ⁺D̄**⁰) = (2.73±0.78±0.48±0.68)%, where the first error is statistical, the second systematic, and the third is the uncertainty in the D_s⁺→φπ⁺ branching fraction. The measured D_s*⁺ longitudinal polarization, Γ_L/Γ = (50.6±13.9±3.6)%, is consistent with the factorization prediction of 54%.

Original language	English (US)
Article number	112003
Pages (from-to)	1-13
Number of pages	13
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	62
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.62.112003
State	Published - Dec 1 2000

Publisher link

10.1103/PhysRevD.62.112003

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Ahmed, S., Alam, M. S., Athar, S. B., Jian, L., Ling, L., Saleem, M., Timm, S., Wappler, F., Anastassov, A., Duboscq, J. E., Eckhart, E., Gan, K. K., Gwon, C., Hart, T., Honscheid, K., Hufnagel, D., Kagan, H., Kass, R., Pedlar, T. K., ... Urheim, J. (2000). Measurement of B→D_s(*)⁺D*(*) branching fractions. Physical Review D - Particles, Fields, Gravitation and Cosmology, 62(11), 1-13. Article 112003. https://doi.org/10.1103/PhysRevD.62.112003

Ahmed, S, Alam, MS, Athar, SB, Jian, L, Ling, L, Saleem, M, Timm, S, Wappler, F, Anastassov, A, Duboscq, JE, Eckhart, E, Gan, KK, Gwon, C, Hart, T, Honscheid, K, Hufnagel, D, Kagan, H, Kass, R, Pedlar, TK, Schwarthoff, H, Thayer, JB, Von Toerne, E, Zoeller, MM, Richichi, SJ, Severini, H, Skubic, P, Undrus, A, Chen, S, Fast, J, Hinson, JW, Lee, J, Miller, DH, Shibata, EI, Shipsey, IPJ, Pavlunin, V, Cronin-Hennessy, D, Lyon, AL, Thorndike, EH, Jessop, CP, Marsiske, H, Perl, ML, Savinov, V, Zhou, X, Coan, TE, Fadeyev, V, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Ayad, R, Boulahouache, C, Bukin, K, Dambasuren, E, Karamov, S, Majumder, G, Moneti, GC, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Viehhauser, G, Wang, JC, Wolf, A, Wu, J, Kopp, S, Mahmood, AH, Csorna, SE, Danko, I, McLean, KW, Márka, S, Xu, Z, Godang, R, Kinoshita, K, Lai, IC, Schrenk, S, Bonvicini, G, Cinabro, D, McGee, S, Perera, LP, Zhou, GJ, Lipeles, E, Pappas, SP, Schmidtler, M, Shapiro, A, Sun, WM, Weinstein, AJ, Würthwein, F, Jaffe, DE, Masek, G, Paar, HP, Potter, EM, Prell, S, Sharma, V, Asner, DM, Eppich, A, Hill, TS, Morrison, RJ, Nelson, HN, Richman, JD, Witherell, MS, Briere, RA, Chen, GP, Behrens, BH, Ford, WT, Gritsan, A, Roy, J, Smith, JG, Alexander, JP, Baker, R, Bebek, C, Berger, BE, Berkelman, K, Blanc, F, Boisvert, V, Cassel, DG, Dickson, M, Drell, PS, Ecklund, KM, Ehrlich, R, Foland, AD, Gaidarev, P, Gibbons, L, Gittelman, B, Gray, SW, Hartill, DL, Heltsley, BK, Hopman, PI, Jones, CD, Kreinick, DL, Lohner, M, Magerkurth, A, Meyer, TO, Mistry, NB, Nordberg, E, Patterson, JR, Peterson, D, Riley, D, Thayer, JG, Urner, D, Valant-Spaight, B, Warburton, A, Avery, P, Prescott, C, Rubiera, AI, Yelton, J, Zheng, J, Brandenburg, G, Ershov, A, Gao, YS, Kim, DYJ, Wilson, R, Browder, TE, Li, Y, Rodriguez, JL, Yamamoto, H, Bergfeld, T, Eisenstein, BI, Ernst, J, Gladding, GE, Gollin, GD, Hans, RM, Johnson, E, Karliner, I, Marsh, MA, Palmer, M, Plager, C, Sedlack, C, Selen, M, Thaler, JJ, Williams, J, Edwards, KW, Janicek, R, Patel, PM, Sadoff, AJ, Ammar, R, Bean, A, Besson, D, Davis, R, Kwak, N, Zhao, X, Anderson, S, Frolov, VV, Kubota, Y, Lee, SJ, Mahapatra, R, O'Neill, JJ, Poling, R, Riehle, T, Smith, A, Stepaniak, CJ & Urheim, J 2000, 'Measurement of B→D_s(*)⁺D*(*) branching fractions', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 62, no. 11, 112003, pp. 1-13. https://doi.org/10.1103/PhysRevD.62.112003

@article{bfcd7e3c1532431e8649b1fa2ce191ad,

title = "Measurement of B→Ds(*)+D*(*) branching fractions",

abstract = "This article describes improved measurements by CLEO of the B0→Ds+D*- and B0→Ds*+D*- branching fractions, and first evidence for the decay B+→Ds(*)+{\=D}** 0, where {\=D}**0 represents the sum of the {\=D}1(2420)0, {\=D}2*(2460)0, and {\=D}1(j = 1/2)0 L = 1 charm meson states. Also reported is the first measurement of the Ds*+ polarization in the decay B0→Ds*+D*-. A partial reconstruction technique, employing only the fully reconstructed Ds+ and slow pion πs- from the D*-→{\=D}0πs- decay, enhances sensitivity. The observed branching fractions are B(B0→Ds+D*-) = (1.10±0.18±0.10±0.28)%, B(B0→Ds*+D*-) = (1.82±0.37±0.24 ±0.46)% , and B(B+→Ds(*) +{\=D}**0) = (2.73±0.78±0.48±0.68)%, where the first error is statistical, the second systematic, and the third is the uncertainty in the Ds+→φπ+ branching fraction. The measured Ds*+ longitudinal polarization, ΓL/Γ = (50.6±13.9±3.6)%, is consistent with the factorization prediction of 54%.",

author = "S. Ahmed and Alam, {M. S.} and Athar, {S. B.} and L. Jian and L. Ling and M. Saleem and S. Timm and F. Wappler and A. Anastassov and Duboscq, {J. E.} and E. Eckhart and Gan, {K. K.} and C. Gwon and T. Hart and K. Honscheid and D. Hufnagel and H. Kagan and R. Kass and Pedlar, {T. K.} and H. Schwarthoff and Thayer, {J. B.} and {Von Toerne}, E. and Zoeller, {M. M.} and Richichi, {S. J.} and H. Severini and P. Skubic and A. Undrus and S. Chen and J. Fast and Hinson, {J. W.} and J. Lee and Miller, {D. H.} and Shibata, {E. I.} and Shipsey, {I. P J} and V. Pavlunin and D. Cronin-Hennessy and Lyon, {A. L.} and Thorndike, {E. H.} and Jessop, {C. P.} and H. Marsiske and Perl, {M. L.} and V. Savinov and X. Zhou and Coan, {T. E.} and V. Fadeyev and Y. Maravin and I. Narsky and R. Stroynowski and J. Ye and T. Wlodek and M. Artuso and R. Ayad and C. Boulahouache and K. Bukin and E. Dambasuren and S. Karamov and G. Majumder and Moneti, {G. C.} and R. Mountain and S. Schuh and T. Skwarnicki and S. Stone and G. Viehhauser and Wang, {J. C.} and A. Wolf and J. Wu and S. Kopp and Mahmood, {A. H.} and Csorna, {S. E.} and I. Danko and McLean, {K. W.} and Sz M{\'a}rka and Z. Xu and R. Godang and K. Kinoshita and Lai, {I. C.} and S. Schrenk and G. Bonvicini and D. Cinabro and S. McGee and Perera, {L. P.} and Zhou, {G. J.} and E. Lipeles and Pappas, {S. P.} and M. Schmidtler and A. Shapiro and Sun, {W. M.} 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 A. Eppich and Hill, {T. S.} and Morrison, {R. J.} and Nelson, {H. N.} and Richman, {J. D.} and Witherell, {M. S.} and Briere, {R. A.} and Chen, {G. P.} and Behrens, {B. H.} and Ford, {W. T.} and A. Gritsan 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 F. Blanc and V. Boisvert and Cassel, {D. G.} and M. Dickson and Drell, {P. S.} and Ecklund, {K. M.} and R. Ehrlich and Foland, {A. D.} and P. Gaidarev and L. Gibbons and B. Gittelman and Gray, {S. W.} and Hartill, {D. L.} and Heltsley, {B. K.} and Hopman, {P. I.} and Jones, {C. D.} and Kreinick, {D. L.} and M. Lohner and A. Magerkurth and Meyer, {T. O.} and Mistry, {N. B.} and E. Nordberg and Patterson, {J. R.} and D. Peterson and D. Riley and Thayer, {J. G.} and D. Urner and B. Valant-Spaight and A. Warburton and P. Avery and C. Prescott and Rubiera, {A. I.} and J. Yelton and J. Zheng and G. Brandenburg and A. Ershov and Gao, {Y. S.} and Kim, {D. Y J} and R. Wilson and Browder, {T. E.} and Y. Li and Rodriguez, {J. L.} and H. Yamamoto 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 C. Plager and C. Sedlack and M. Selen and Thaler, {J. J.} and J. Williams and Edwards, {K. W.} and R. Janicek and Patel, {P. M.} and Sadoff, {A. J.} and R. Ammar and A. Bean and D. Besson and R. Davis and N. Kwak and X. Zhao and S. Anderson and Frolov, {V. V.} 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 Stepaniak, {C. J.} and J. Urheim",

year = "2000",

month = dec,

day = "1",

doi = "10.1103/PhysRevD.62.112003",

language = "English (US)",

volume = "62",

pages = "1--13",

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

issn = "0556-2821",

publisher = "American Physical Society",

number = "11",

}

TY - JOUR

T1 - Measurement of B→Ds(*)+D*(*) branching fractions

AU - Ahmed, S.

AU - Alam, M. S.

AU - Athar, S. B.

AU - Jian, L.

AU - Ling, L.

AU - Saleem, M.

AU - Timm, S.

AU - Wappler, F.

AU - Anastassov, A.

AU - Duboscq, J. E.

AU - Eckhart, E.

AU - Gan, K. K.

AU - Gwon, C.

AU - Hart, T.

AU - Honscheid, K.

AU - Hufnagel, D.

AU - Kagan, H.

AU - Kass, R.

AU - Pedlar, T. K.

AU - Schwarthoff, H.

AU - Thayer, J. B.

AU - Von Toerne, E.

AU - Zoeller, M. M.

AU - Richichi, S. J.

AU - Severini, H.

AU - Skubic, P.

AU - Undrus, A.

AU - Chen, S.

AU - Fast, J.

AU - Hinson, J. W.

AU - Lee, J.

AU - Miller, D. H.

AU - Shibata, E. I.

AU - Shipsey, I. P J

AU - Pavlunin, V.

AU - Cronin-Hennessy, D.

AU - Lyon, A. L.

AU - Thorndike, E. H.

AU - Jessop, C. P.

AU - Marsiske, H.

AU - Perl, M. L.

AU - Savinov, V.

AU - Zhou, X.

AU - Coan, T. E.

AU - Fadeyev, V.

AU - Maravin, Y.

AU - Narsky, I.

AU - Stroynowski, R.

AU - Ye, J.

AU - Wlodek, T.

AU - Artuso, M.

AU - Ayad, R.

AU - Boulahouache, C.

AU - Bukin, K.

AU - Dambasuren, E.

AU - Karamov, S.

AU - Majumder, G.

AU - Moneti, G. C.

AU - Mountain, R.

AU - Schuh, S.

AU - Skwarnicki, T.

AU - Stone, S.

AU - Viehhauser, G.

AU - Wang, J. C.

AU - Wolf, A.

AU - Wu, J.

AU - Kopp, S.

AU - Mahmood, A. H.

AU - Csorna, S. E.

AU - Danko, I.

AU - McLean, K. W.

AU - Márka, Sz

AU - Xu, Z.

AU - Godang, R.

AU - Kinoshita, K.

AU - Lai, I. C.

AU - Schrenk, S.

AU - Bonvicini, G.

AU - Cinabro, D.

AU - McGee, S.

AU - Perera, L. P.

AU - Zhou, G. J.

AU - Lipeles, E.

AU - Pappas, S. P.

AU - Schmidtler, M.

AU - Shapiro, A.

AU - Sun, W. M.

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 - Eppich, A.

AU - Hill, T. S.

AU - Morrison, R. J.

AU - Nelson, H. N.

AU - Richman, J. D.

AU - Witherell, M. S.

AU - Briere, R. A.

AU - Chen, G. P.

AU - Behrens, B. H.

AU - Ford, W. T.

AU - Gritsan, A.

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 - Blanc, F.

AU - Boisvert, V.

AU - Cassel, D. G.

AU - Dickson, M.

AU - Drell, P. S.

AU - Ecklund, K. M.

AU - Ehrlich, R.

AU - Foland, A. D.

AU - Gaidarev, P.

AU - Gibbons, L.

AU - Gittelman, B.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Hopman, P. I.

AU - Jones, C. D.

AU - Kreinick, D. L.

AU - Lohner, M.

AU - Magerkurth, A.

AU - Meyer, T. O.

AU - Mistry, N. B.

AU - Nordberg, E.

AU - Patterson, J. R.

AU - Peterson, D.

AU - Riley, D.

AU - Thayer, J. G.

AU - Urner, D.

AU - Valant-Spaight, B.

AU - Warburton, A.

AU - Avery, P.

AU - Prescott, C.

AU - Rubiera, A. I.

AU - Yelton, J.

AU - Zheng, J.

AU - Brandenburg, G.

AU - Ershov, A.

AU - Gao, Y. S.

AU - Kim, D. Y J

AU - Wilson, R.

AU - Browder, T. E.

AU - Li, Y.

AU - Rodriguez, J. L.

AU - Yamamoto, H.

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 - Plager, C.

AU - Sedlack, C.

AU - Selen, M.

AU - Thaler, J. J.

AU - Williams, J.

AU - Edwards, K. W.

AU - Janicek, R.

AU - Patel, P. M.

AU - Sadoff, A. J.

AU - Ammar, R.

AU - Bean, A.

AU - Besson, D.

AU - Davis, R.

AU - Kwak, N.

AU - Zhao, X.

AU - Anderson, S.

AU - Frolov, V. V.

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 - Stepaniak, C. J.

AU - Urheim, J.

PY - 2000/12/1

Y1 - 2000/12/1

N2 - This article describes improved measurements by CLEO of the B0→Ds+D*- and B0→Ds*+D*- branching fractions, and first evidence for the decay B+→Ds(*)+D̄** 0, where D̄**0 represents the sum of the D̄1(2420)0, D̄2*(2460)0, and D̄1(j = 1/2)0 L = 1 charm meson states. Also reported is the first measurement of the Ds*+ polarization in the decay B0→Ds*+D*-. A partial reconstruction technique, employing only the fully reconstructed Ds+ and slow pion πs- from the D*-→D̄0πs- decay, enhances sensitivity. The observed branching fractions are B(B0→Ds+D*-) = (1.10±0.18±0.10±0.28)%, B(B0→Ds*+D*-) = (1.82±0.37±0.24 ±0.46)% , and B(B+→Ds(*) +D̄**0) = (2.73±0.78±0.48±0.68)%, where the first error is statistical, the second systematic, and the third is the uncertainty in the Ds+→φπ+ branching fraction. The measured Ds*+ longitudinal polarization, ΓL/Γ = (50.6±13.9±3.6)%, is consistent with the factorization prediction of 54%.

AB - This article describes improved measurements by CLEO of the B0→Ds+D*- and B0→Ds*+D*- branching fractions, and first evidence for the decay B+→Ds(*)+D̄** 0, where D̄**0 represents the sum of the D̄1(2420)0, D̄2*(2460)0, and D̄1(j = 1/2)0 L = 1 charm meson states. Also reported is the first measurement of the Ds*+ polarization in the decay B0→Ds*+D*-. A partial reconstruction technique, employing only the fully reconstructed Ds+ and slow pion πs- from the D*-→D̄0πs- decay, enhances sensitivity. The observed branching fractions are B(B0→Ds+D*-) = (1.10±0.18±0.10±0.28)%, B(B0→Ds*+D*-) = (1.82±0.37±0.24 ±0.46)% , and B(B+→Ds(*) +D̄**0) = (2.73±0.78±0.48±0.68)%, where the first error is statistical, the second systematic, and the third is the uncertainty in the Ds+→φπ+ branching fraction. The measured Ds*+ longitudinal polarization, ΓL/Γ = (50.6±13.9±3.6)%, is consistent with the factorization prediction of 54%.

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U2 - 10.1103/PhysRevD.62.112003

DO - 10.1103/PhysRevD.62.112003

M3 - Article

AN - SCOPUS:16644369190

SN - 0556-2821

VL - 62

SP - 1

EP - 13

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

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

IS - 11

M1 - 112003

ER -

Measurement of B→D_s()⁺D(*) branching fractions

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