Measurement of Β(B - → D 0π -) and Β(B - → D +π -) and isospin analysis of B̄ → Dπ decays

S. Ahmed; M. S. Alam; L. Jian; M. Saleem; F. Wappler; E. Eckhart; K. K. Gan; C. Gwon; T. Hart; K. Honscheid; D. Hufnagel; H. Kagan; R. Kass; T. K. Pedlar; J. B. Thayer; E. von Toerne; T. Wilksen; M. M. Zoeller; H. Muramatsu; S. J. Richichi; H. Severini; P. Skubic; S. A. Dytman; J. A. Mueller; S. Nam; V. Savinov; S. Chen; J. W. Hinson; J. Lee; D. H. Miller; V. Pavlunin; E. I. Shibata; I. P.J. Shipsey; D. Cronin-Hennessy; A. L. Lyon; C. S. Park; W. Park; E. H. Thorndike; T. E. Coan; Y. S. Gao; F. Liu; Y. Maravin; R. Stroynowski; M. Artuso; C. Boulahouache; K. Bukin; E. Dambasuren; K. Khroustalev; R. Mountain; R. Nandakumar; T. Skwarnicki; S. Stone; J. C. Wang; A. H. Mahmood; S. E. Csorna; I. Danko; G. Bonvicini; D. Cinabro; M. Dubrovin; S. McGee; A. Bornheim; E. Lipeles; S. P. Pappas; A. Shapiro; W. M. Sun; A. J. Weinstein; R. Mahapatra; R. A. Briere; G. P. Chen; T. Ferguson; G. Tatishvili; H. Vogel; N. E. Adam; J. P. Alexander; K. Berkelman; V. Boisvert; D. G. Cassel; P. S. Drell; J. E. Duboscq; K. M. Ecklund; R. Ehrlich; L. Gibbons; B. Gittelman; S. W. Gray; D. L. Hartill; B. K. Heltsley; L. Hsu; C. D. Jones; J. Kandaswamy; D. L. Kreinick; A. Magerkurth; H. Mahlke-Krüger; T. O. Meyer; N. B. Mistry; E. Nordberg; J. R. Patterson; D. Peterson; J. Pivarski; D. Riley; A. J. Sadoff; H. Schwarthoff; M. R. Shepherd; J. G. Thayer; D. Urner; B. Valant-Spaight; G. Viehhauser; A. Warburton; M. Weinberger; S. B. Athar; P. Avery; L. Breva-Newell; V. Potlia; H. Stoeck; J. Yelton; G. Brandenburg; D. Y.J. Kim; R. Wilson; K. Benslama; B. I. Eisenstein; J. Ernst; G. D. Gollin; R. M. Hans; I. Karliner; N. Lowrey; M. A. Marsh; C. Plager; C. Sedlack; M. Selen; J. J. Thaler; J. Williams; K. W. Edwards; R. Ammar; D. Besson; X. Zhao; S. Anderson; V. V. Frolov; Y. Kubota; S. J. Lee; S. Z. Li; R. Poling; A. Smith; C. J. Stepaniak; J. Urheim; Z. Metreveli; K. K. Seth; A. Tomaradze; P. Zweber

doi:10.1103/PhysRevD.66.031101

Measurement of Β(B ^- → D ⁰π ^-) and Β(B ^- → D ⁺π ^-) and isospin analysis of B̄ → Dπ decays

S. Ahmed, M. S. Alam, L. Jian, M. Saleem, F. Wappler, E. Eckhart, K. K. Gan, C. Gwon, T. Hart, K. Honscheid, D. Hufnagel, H. Kagan, R. Kass, T. K. Pedlar, J. B. Thayer, E. von Toerne, T. Wilksen, M. M. Zoeller, H. Muramatsu, S. J. RichichiH. Severini, P. Skubic, S. A. Dytman, J. A. Mueller, S. Nam, V. Savinov, S. Chen, J. W. Hinson, J. Lee, D. H. Miller, V. Pavlunin, E. I. Shibata, I. P.J. Shipsey, D. Cronin-Hennessy, A. L. Lyon, C. S. Park, W. Park, E. H. Thorndike, T. E. Coan, Y. S. Gao, F. Liu, Y. Maravin, R. Stroynowski, M. Artuso, C. Boulahouache, K. Bukin, E. Dambasuren, K. Khroustalev, R. Mountain, R. Nandakumar, T. Skwarnicki, S. Stone, J. C. Wang, A. H. Mahmood, S. E. Csorna, I. Danko, G. Bonvicini, D. Cinabro, M. Dubrovin, S. McGee, A. Bornheim, E. Lipeles, S. P. Pappas, A. Shapiro, W. M. Sun, A. J. Weinstein, R. Mahapatra, R. A. Briere, G. P. Chen, T. Ferguson, G. Tatishvili, H. Vogel, N. E. Adam, J. P. Alexander, K. Berkelman, V. Boisvert, D. G. Cassel, P. S. Drell, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, L. Hsu, C. D. Jones, J. Kandaswamy, D. L. Kreinick, A. Magerkurth, H. Mahlke-Krüger, T. O. Meyer, N. B. Mistry, E. Nordberg, J. R. Patterson, D. Peterson, J. Pivarski, D. Riley, A. J. Sadoff, H. Schwarthoff, M. R. Shepherd, J. G. Thayer, D. Urner, B. Valant-Spaight, G. Viehhauser, A. Warburton, M. Weinberger, S. B. Athar, P. Avery, L. Breva-Newell, V. Potlia, H. Stoeck, J. Yelton, G. Brandenburg, D. Y.J. Kim, R. Wilson, K. Benslama, B. I. Eisenstein, J. Ernst, G. D. Gollin, R. M. Hans, I. Karliner, N. Lowrey, M. A. Marsh, C. Plager, C. Sedlack, M. Selen, J. J. Thaler, J. Williams, K. W. Edwards, R. Ammar, D. Besson, X. Zhao, S. Anderson, V. V. Frolov, Y. Kubota, S. J. Lee, S. Z. Li, R. Poling, A. Smith, C. J. Stepaniak, J. Urheim, Z. Metreveli, K. K. Seth, A. Tomaradze, P. Zweber

Physics and Astronomy (Twin Cities)

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Abstract

We present new measurements of branching fractions for the color-favored decays B ⁺ → D ⁰π ^- and B̄ ⁰ → D ⁺π ^-. Using 9.67×10 ⁶ BB̄ pairs collected with the CLEO detector, we obtain the branching fractions Β(B ^- → D ⁰π ^- = (49.7±1.2±2.9±2.2)×10 ⁴ and Β(B̄ ⁰ → D ⁺π ^-) = (26.8±1.2±2.4±1.2)×10 ^-4. The first error is statistical, the second is systematic, and the third is due to the experimental uncertainty on the production ratio of charged and neutral B mesons in Y(4S) decays. These results, together with the current world average for the color-suppressed branching fraction Β(B̄ ⁺ → D ⁰π ⁰), are used to determine the cosine of the strong phase difference δ _I between the I = 1/2 and I=3/2 isospin amplitudes. We find cos δ _I = 0.863 _{-0.023-0.035-0.030} ^{+0.024+0.036+0.038}, and obtain a 90% confidence interval of 16.5° < δ _I < 38.1°. This nonzero value of δ _I suggests the presence of final state interactions in the D π system.

Original language	English (US)
Article number	031101
Journal	Physical Review D
Volume	66
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.66.031101 https://doi.org/10.1103/PhysRevD.66.031101
State	Published - 2002

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Ahmed, S., Alam, M. S., Jian, L., Saleem, M., Wappler, F., Eckhart, E., Gan, K. K., Gwon, C., Hart, T., Honscheid, K., Hufnagel, D., Kagan, H., Kass, R., Pedlar, T. K., Thayer, J. B., von Toerne, E., Wilksen, T., Zoeller, M. M., Muramatsu, H., ... Zweber, P. (2002). Measurement of Β(B ^- → D ⁰π ^-) and Β(B ^- → D ⁺π ^-) and isospin analysis of B̄ → Dπ decays. Physical Review D, 66(3), Article 031101. https://doi.org/10.1103/PhysRevD.66.031101, https://doi.org/10.1103/PhysRevD.66.031101

Ahmed, S, Alam, MS, Jian, L, Saleem, M, Wappler, F, Eckhart, E, Gan, KK, Gwon, C, Hart, T, Honscheid, K, Hufnagel, D, Kagan, H, Kass, R, Pedlar, TK, Thayer, JB, von Toerne, E, Wilksen, T, Zoeller, MM, Muramatsu, H, Richichi, SJ, Severini, H, Skubic, P, Dytman, SA, Mueller, JA, Nam, S, Savinov, V, Chen, S, Hinson, JW, Lee, J, Miller, DH, Pavlunin, V, Shibata, EI, Shipsey, IPJ, Cronin-Hennessy, D, Lyon, AL, Park, CS, Park, W, Thorndike, EH, Coan, TE, Gao, YS, Liu, F, Maravin, Y, Stroynowski, R, Artuso, M, Boulahouache, C, Bukin, K, Dambasuren, E, Khroustalev, K, Mountain, R, Nandakumar, R, Skwarnicki, T, Stone, S, Wang, JC, Mahmood, AH, Csorna, SE, Danko, I, Bonvicini, G, Cinabro, D, Dubrovin, M, McGee, S, Bornheim, A, Lipeles, E, Pappas, SP, Shapiro, A, Sun, WM, Weinstein, AJ, Mahapatra, R, Briere, RA, Chen, GP, Ferguson, T, Tatishvili, G, Vogel, H, Adam, NE, Alexander, JP, Berkelman, K, Boisvert, V, Cassel, DG, Drell, PS, Duboscq, JE, Ecklund, KM, Ehrlich, R, Gibbons, L, Gittelman, B, Gray, SW, Hartill, DL, Heltsley, BK, Hsu, L, Jones, CD, Kandaswamy, J, Kreinick, DL, Magerkurth, A, Mahlke-Krüger, H, Meyer, TO, Mistry, NB, Nordberg, E, Patterson, JR, Peterson, D, Pivarski, J, Riley, D, Sadoff, AJ, Schwarthoff, H, Shepherd, MR, Thayer, JG, Urner, D, Valant-Spaight, B, Viehhauser, G, Warburton, A, Weinberger, M, Athar, SB, Avery, P, Breva-Newell, L, Potlia, V, Stoeck, H, Yelton, J, Brandenburg, G, Kim, DYJ, Wilson, R, Benslama, K, Eisenstein, BI, Ernst, J, Gollin, GD, Hans, RM, Karliner, I, Lowrey, N, Marsh, MA, Plager, C, Sedlack, C, Selen, M, Thaler, JJ, Williams, J, Edwards, KW, Ammar, R, Besson, D, Zhao, X, Anderson, S, Frolov, VV, Kubota, Y, Lee, SJ, Li, SZ, Poling, R, Smith, A, Stepaniak, CJ, Urheim, J, Metreveli, Z, Seth, KK, Tomaradze, A & Zweber, P 2002, 'Measurement of Β(B ^- → D ⁰π ^-) and Β(B ^- → D ⁺π ^-) and isospin analysis of B̄ → Dπ decays', Physical Review D, vol. 66, no. 3, 031101. https://doi.org/10.1103/PhysRevD.66.031101, https://doi.org/10.1103/PhysRevD.66.031101

@article{3ba28744811442a897b026bc262492e6,

title = "Measurement of Β(B - → D 0π -) and Β(B - → D +π -) and isospin analysis of {\=B} → Dπ decays",

abstract = "We present new measurements of branching fractions for the color-favored decays B + → D 0π - and {\=B} 0 → D +π -. Using 9.67×10 6 B{\=B} pairs collected with the CLEO detector, we obtain the branching fractions Β(B - → D 0π - = (49.7±1.2±2.9±2.2)×10 4 and Β({\=B} 0 → D +π -) = (26.8±1.2±2.4±1.2)×10 -4. The first error is statistical, the second is systematic, and the third is due to the experimental uncertainty on the production ratio of charged and neutral B mesons in Y(4S) decays. These results, together with the current world average for the color-suppressed branching fraction Β({\=B} + → D 0π 0), are used to determine the cosine of the strong phase difference δ I between the I = 1/2 and I=3/2 isospin amplitudes. We find cos δ I = 0.863 -0.023-0.035-0.030 +0.024+0.036+0.038, and obtain a 90% confidence interval of 16.5° < δ I < 38.1°. This nonzero value of δ I suggests the presence of final state interactions in the D π system.",

author = "S. Ahmed and Alam, {M. S.} and L. Jian and M. Saleem and F. Wappler 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 Thayer, {J. B.} and {von Toerne}, E. and T. Wilksen and Zoeller, {M. M.} and H. Muramatsu and Richichi, {S. J.} and H. Severini and P. Skubic and Dytman, {S. A.} and Mueller, {J. A.} and S. Nam and V. Savinov and S. Chen and Hinson, {J. W.} and J. Lee and Miller, {D. H.} and V. Pavlunin and Shibata, {E. I.} and Shipsey, {I. P.J.} and D. Cronin-Hennessy and Lyon, {A. L.} and Park, {C. S.} and W. Park and Thorndike, {E. H.} and Coan, {T. E.} and Gao, {Y. S.} and F. Liu and Y. Maravin and R. Stroynowski and M. Artuso and C. Boulahouache and K. Bukin and E. Dambasuren and K. Khroustalev and R. Mountain and R. Nandakumar and T. Skwarnicki and S. Stone and Wang, {J. C.} and Mahmood, {A. H.} and Csorna, {S. E.} and I. Danko and G. Bonvicini and D. Cinabro and M. Dubrovin and S. McGee and A. Bornheim and E. Lipeles and Pappas, {S. P.} and A. Shapiro and Sun, {W. M.} and Weinstein, {A. J.} and R. Mahapatra and Briere, {R. A.} and Chen, {G. P.} and T. Ferguson and G. Tatishvili and H. Vogel and Adam, {N. E.} and Alexander, {J. P.} and K. Berkelman and V. Boisvert and Cassel, {D. G.} and Drell, {P. S.} and Duboscq, {J. E.} and Ecklund, {K. M.} and R. Ehrlich and L. Gibbons and B. Gittelman and Gray, {S. W.} and Hartill, {D. L.} and Heltsley, {B. K.} and L. Hsu and Jones, {C. D.} and J. Kandaswamy and Kreinick, {D. L.} and A. Magerkurth and H. Mahlke-Kr{\"u}ger and Meyer, {T. O.} and Mistry, {N. B.} and E. Nordberg and Patterson, {J. R.} and D. Peterson and J. Pivarski and D. Riley and Sadoff, {A. J.} and H. Schwarthoff and Shepherd, {M. R.} and Thayer, {J. G.} and D. Urner and B. Valant-Spaight and G. Viehhauser and A. Warburton and M. Weinberger and Athar, {S. B.} and P. Avery and L. Breva-Newell and V. Potlia and H. Stoeck and J. Yelton and G. Brandenburg and Kim, {D. Y.J.} and R. Wilson and K. Benslama and Eisenstein, {B. I.} and J. Ernst and Gollin, {G. D.} and Hans, {R. M.} and I. Karliner and N. Lowrey and Marsh, {M. A.} and C. Plager and C. Sedlack and M. Selen and Thaler, {J. J.} and J. Williams and Edwards, {K. W.} and R. Ammar and D. Besson and X. Zhao and S. Anderson and Frolov, {V. V.} and Y. Kubota and Lee, {S. J.} and Li, {S. Z.} and R. Poling and A. Smith and Stepaniak, {C. J.} and J. Urheim and Z. Metreveli and Seth, {K. K.} and A. Tomaradze and P. Zweber",

year = "2002",

doi = "10.1103/PhysRevD.66.031101",

language = "English (US)",

volume = "66",

journal = "Physical Review D",

issn = "0556-2821",

publisher = "American Institute of Physics Publising LLC",

number = "3",

}

TY - JOUR

T1 - Measurement of Β(B - → D 0π -) and Β(B - → D +π -) and isospin analysis of B̄ → Dπ decays

AU - Ahmed, S.

AU - Alam, M. S.

AU - Jian, L.

AU - Saleem, M.

AU - Wappler, F.

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 - Thayer, J. B.

AU - von Toerne, E.

AU - Wilksen, T.

AU - Zoeller, M. M.

AU - Muramatsu, H.

AU - Richichi, S. J.

AU - Severini, H.

AU - Skubic, P.

AU - Dytman, S. A.

AU - Mueller, J. A.

AU - Nam, S.

AU - Savinov, V.

AU - Chen, S.

AU - Hinson, J. W.

AU - Lee, J.

AU - Miller, D. H.

AU - Pavlunin, V.

AU - Shibata, E. I.

AU - Shipsey, I. P.J.

AU - Cronin-Hennessy, D.

AU - Lyon, A. L.

AU - Park, C. S.

AU - Park, W.

AU - Thorndike, E. H.

AU - Coan, T. E.

AU - Gao, Y. S.

AU - Liu, F.

AU - Maravin, Y.

AU - Stroynowski, R.

AU - Artuso, M.

AU - Boulahouache, C.

AU - Bukin, K.

AU - Dambasuren, E.

AU - Khroustalev, K.

AU - Mountain, R.

AU - Nandakumar, R.

AU - Skwarnicki, T.

AU - Stone, S.

AU - Wang, J. C.

AU - Mahmood, A. H.

AU - Csorna, S. E.

AU - Danko, I.

AU - Bonvicini, G.

AU - Cinabro, D.

AU - Dubrovin, M.

AU - McGee, S.

AU - Bornheim, A.

AU - Lipeles, E.

AU - Pappas, S. P.

AU - Shapiro, A.

AU - Sun, W. M.

AU - Weinstein, A. J.

AU - Mahapatra, R.

AU - Briere, R. A.

AU - Chen, G. P.

AU - Ferguson, T.

AU - Tatishvili, G.

AU - Vogel, H.

AU - Adam, N. E.

AU - Alexander, J. P.

AU - Berkelman, K.

AU - Boisvert, V.

AU - Cassel, D. G.

AU - Drell, P. S.

AU - Duboscq, J. E.

AU - Ecklund, K. M.

AU - Ehrlich, R.

AU - Gibbons, L.

AU - Gittelman, B.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Hsu, L.

AU - Jones, C. D.

AU - Kandaswamy, J.

AU - Kreinick, D. L.

AU - Magerkurth, A.

AU - Mahlke-Krüger, H.

AU - Meyer, T. O.

AU - Mistry, N. B.

AU - Nordberg, E.

AU - Patterson, J. R.

AU - Peterson, D.

AU - Pivarski, J.

AU - Riley, D.

AU - Sadoff, A. J.

AU - Schwarthoff, H.

AU - Shepherd, M. R.

AU - Thayer, J. G.

AU - Urner, D.

AU - Valant-Spaight, B.

AU - Viehhauser, G.

AU - Warburton, A.

AU - Weinberger, M.

AU - Athar, S. B.

AU - Avery, P.

AU - Breva-Newell, L.

AU - Potlia, V.

AU - Stoeck, H.

AU - Yelton, J.

AU - Brandenburg, G.

AU - Kim, D. Y.J.

AU - Wilson, R.

AU - Benslama, K.

AU - Eisenstein, B. I.

AU - Ernst, J.

AU - Gollin, G. D.

AU - Hans, R. M.

AU - Karliner, I.

AU - Lowrey, N.

AU - Marsh, M. A.

AU - Plager, C.

AU - Sedlack, C.

AU - Selen, M.

AU - Thaler, J. J.

AU - Williams, J.

AU - Edwards, K. W.

AU - Ammar, R.

AU - Besson, D.

AU - Zhao, X.

AU - Anderson, S.

AU - Frolov, V. V.

AU - Kubota, Y.

AU - Lee, S. J.

AU - Li, S. Z.

AU - Poling, R.

AU - Smith, A.

AU - Stepaniak, C. J.

AU - Urheim, J.

AU - Metreveli, Z.

AU - Seth, K. K.

AU - Tomaradze, A.

AU - Zweber, P.

PY - 2002

Y1 - 2002

N2 - We present new measurements of branching fractions for the color-favored decays B + → D 0π - and B̄ 0 → D +π -. Using 9.67×10 6 BB̄ pairs collected with the CLEO detector, we obtain the branching fractions Β(B - → D 0π - = (49.7±1.2±2.9±2.2)×10 4 and Β(B̄ 0 → D +π -) = (26.8±1.2±2.4±1.2)×10 -4. The first error is statistical, the second is systematic, and the third is due to the experimental uncertainty on the production ratio of charged and neutral B mesons in Y(4S) decays. These results, together with the current world average for the color-suppressed branching fraction Β(B̄ + → D 0π 0), are used to determine the cosine of the strong phase difference δ I between the I = 1/2 and I=3/2 isospin amplitudes. We find cos δ I = 0.863 -0.023-0.035-0.030 +0.024+0.036+0.038, and obtain a 90% confidence interval of 16.5° < δ I < 38.1°. This nonzero value of δ I suggests the presence of final state interactions in the D π system.

AB - We present new measurements of branching fractions for the color-favored decays B + → D 0π - and B̄ 0 → D +π -. Using 9.67×10 6 BB̄ pairs collected with the CLEO detector, we obtain the branching fractions Β(B - → D 0π - = (49.7±1.2±2.9±2.2)×10 4 and Β(B̄ 0 → D +π -) = (26.8±1.2±2.4±1.2)×10 -4. The first error is statistical, the second is systematic, and the third is due to the experimental uncertainty on the production ratio of charged and neutral B mesons in Y(4S) decays. These results, together with the current world average for the color-suppressed branching fraction Β(B̄ + → D 0π 0), are used to determine the cosine of the strong phase difference δ I between the I = 1/2 and I=3/2 isospin amplitudes. We find cos δ I = 0.863 -0.023-0.035-0.030 +0.024+0.036+0.038, and obtain a 90% confidence interval of 16.5° < δ I < 38.1°. This nonzero value of δ I suggests the presence of final state interactions in the D π system.

UR - http://www.scopus.com/inward/record.url?scp=85038317187&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85038317187&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.66.031101

DO - 10.1103/PhysRevD.66.031101

M3 - Article

AN - SCOPUS:33845659945

SN - 0556-2821

VL - 66

JO - Physical Review D

JF - Physical Review D

IS - 3

M1 - 031101

ER -

Measurement of Β(B ^- → D ⁰π ^-) and Β(B ^- → D ⁺π ^-) and isospin analysis of B̄ → Dπ decays

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