Study of color suppressed modes <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>B</mi></mrow><mrow><mn>0</mn></mrow></msup></mrow><mo>→</mo><mrow><msup><mrow><mi>D</mi></mrow><mrow><mo>(</mo><mi>*</mi><mo>)</mo><mn>0</mn><mn></mn></mrow></msup></mrow><mrow><msup><mrow><mi>η</mi></mrow><mrow><mo>(</mo><mo>′</mo><mo>)</mo></mrow></msup></mrow></math></span>

Cai-Dian Lü

doi:10.1103/PhysRevD.68.097502

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Study of color suppressed modes $B^{0} \to D^{(*) 0} η^{(')}$

Cai-Dian Lü

CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, China
Institute of High Energy Physics, CAS, P.O. Box 918(4), Beijing 100039, China

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Phys. Rev. D 68, 097502 – Published 13 November, 2003

DOI: https://doi.org/10.1103/PhysRevD.68.097502

Abstract

The color suppressed modes $B^{0} \to D^{(*) 0} η^{(')}$ are analyzed in the perturbative QCD approach. We find that the dominant contribution is from the nonfactorizable diagrams. The branching ratios calculated in our approach for $B^{0} \to D^{(*) 0} η$ agree with current experiments. By neglecting the gluonic contribution, we predict that the branching ratios of $B^{0} \to D^{(*) 0} η^{'}$ are comparable in size to those for $B^{0} \to D^{(*) 0} π^{0},$ but smaller than those for $B^{0} \to D^{(*) 0} η .$

References (20)

M. Bauer, B. Stech, and M. Wirbel, Z. Phys. C 29, 637 (1985); ibid.34, 103 (1987); M. Neubert, in Heavy Flavours, 2nd ed., edited by A. J. Buras and M. Lindner (World Scientific, Singapore, 1998).
A. Deandrea and A. D. Polosa, Eur. Phys. J. C 22, 677 (2002).
Belle Collaboration, K. Abe et al., Phys. Rev. Lett. 88, 052002 (2002).
BABAR Collaboration, B. Aubert et al., hep-ex/0207092.
J. O. Eeg, A. Hiorth, and A. D. Polosa, Phys. Rev. D 65, 054030 (2002).
H. Hayakawa, K. Hosokawa, and T. Kurimoto, Mod. Phys. Lett. A 18, 1557 (2003); Y.-Y. Keum, T. Kurimoto, H. N. Li, C.-D. Lu, and A. I. Sanda, hep-ph/0305335.
G. P. Lepage and S. J. Brodsky, Phys. Lett. 87B, 359 (1979); Phys. Rev. D 22, 2157 (1980).
J. Botts and G. Sterman, Nucl. Phys. B225, 62 (1989); ibid.H.-n. Li and G. Sterman, B381, 129 (1992).
T. Kurimoto, H.-n. Li, and A. I. Sanda, Phys. Rev. D 65, 014007 (2002); ibid.67, 054028 (2003); C. D. Lü and M. Z. Yang, Eur. Phys. J. C 28, 515 (2003).
Y. Y. Keum, H.-n. Li, and A. I. Sanda, Phys. Lett. B 504, 6 (2001); Phys. Rev. D 63, 054008 (2001); ibid.Y. Y. Keum and H.-n. Li, 63, 074006 (2001).
C. D. Lü, K. Ukai, and M. Z. Yang, Phys. Rev. D 63, 074009 (2001).
E. Kou and A. I. Sanda, Phys. Lett. B 525, 240 (2002).
K. Ukai, in Proceedings of the 4th International Conference on B Physics and CP Violation (BCP4), Japan, 2001, p. 287; C.-D. Lü, Eur. Phys. J. C 24, 121 (2002); hep-ph/0305061; C.-D. Lü and K. Ukai, Eur. Phys. J. C 28, 305 (2003); Y. Li and C-D Lü, J. Phys. G 29, 2115 (2003); hep-ph/0305278.
For a review, see G. Buchalla, A. J. Buras, and M. E. Lautenbacher, Rev. Mod. Phys. 68, 1125 (1996).
H.-n. Li and H. L. Yu, Phys. Rev. Lett. 74, 4388 (1995); Phys. Lett. B 353, 301 (1995); Phys. Rev. D 53, 2480 (1996).
H. Leutwyler, Nucl. Phys. B (Proc. Suppl.) 64, 223 (1998); P. Herrera-Sikoldy, J. I. Latorre, P. Pascual, and J. Taron, Phys. Lett. B 419, 326 (1998); T. Feldmann and P. Kroll, Eur. Phys. J. C 5, 327 (1998).
T. Feldmann, P. Kroll, and B. Stech, Phys. Rev. D 58, 114006 (1998); ibid.E. Kou, 63, 054027 (2001).
S. Mantry, D. Pirjol, and I. Stewart, Phys. Rev. D (to be published), hep-ph/0306254.
S. Mishima, A. I. Sanda, hep-ph/0305073.
Partical Data Group, K. Hagiwara et al., Phys. Rev. D 66, 010001 (2002).

[c1] M. Bauer, B. Stech, and M. Wirbel, Z. Phys. C 29, 637 (1985); ibid.34, 103 (1987); M. Neubert, in Heavy Flavours, 2nd ed., edited by A. J. Buras and M. Lindner (World Scientific, Singapore, 1998).

[c2] A. Deandrea and A. D. Polosa, Eur. Phys. J. C 22, 677 (2002).

[c3] Belle Collaboration, K. Abe et al., Phys. Rev. Lett. 88, 052002 (2002).

[c4] BABAR Collaboration, B. Aubert et al., hep-ex/0207092.

[c5] J. O. Eeg, A. Hiorth, and A. D. Polosa, Phys. Rev. D 65, 054030 (2002).

[c6] H. Hayakawa, K. Hosokawa, and T. Kurimoto, Mod. Phys. Lett. A 18, 1557 (2003); Y.-Y. Keum, T. Kurimoto, H. N. Li, C.-D. Lu, and A. I. Sanda, hep-ph/0305335.

[c7] G. P. Lepage and S. J. Brodsky, Phys. Lett. 87B, 359 (1979); Phys. Rev. D 22, 2157 (1980).

[c8] J. Botts and G. Sterman, Nucl. Phys. B225, 62 (1989); ibid.H.-n. Li and G. Sterman, B381, 129 (1992).

[c9] T. Kurimoto, H.-n. Li, and A. I. Sanda, Phys. Rev. D 65, 014007 (2002); ibid.67, 054028 (2003); C. D. Lü and M. Z. Yang, Eur. Phys. J. C 28, 515 (2003).

[c10] Y. Y. Keum, H.-n. Li, and A. I. Sanda, Phys. Lett. B 504, 6 (2001); Phys. Rev. D 63, 054008 (2001); ibid.Y. Y. Keum and H.-n. Li, 63, 074006 (2001).

[c11] C. D. Lü, K. Ukai, and M. Z. Yang, Phys. Rev. D 63, 074009 (2001).

[c12] E. Kou and A. I. Sanda, Phys. Lett. B 525, 240 (2002).

[c13] K. Ukai, in Proceedings of the 4th International Conference on B Physics and CP Violation (BCP4), Japan, 2001, p. 287; C.-D. Lü, Eur. Phys. J. C 24, 121 (2002); hep-ph/0305061; C.-D. Lü and K. Ukai, Eur. Phys. J. C 28, 305 (2003); Y. Li and C-D Lü, J. Phys. G 29, 2115 (2003); hep-ph/0305278.

[c14] For a review, see G. Buchalla, A. J. Buras, and M. E. Lautenbacher, Rev. Mod. Phys. 68, 1125 (1996).

[c15] H.-n. Li and H. L. Yu, Phys. Rev. Lett. 74, 4388 (1995); Phys. Lett. B 353, 301 (1995); Phys. Rev. D 53, 2480 (1996).

[c16] H. Leutwyler, Nucl. Phys. B (Proc. Suppl.) 64, 223 (1998); P. Herrera-Sikoldy, J. I. Latorre, P. Pascual, and J. Taron, Phys. Lett. B 419, 326 (1998); T. Feldmann and P. Kroll, Eur. Phys. J. C 5, 327 (1998).

[c17] T. Feldmann, P. Kroll, and B. Stech, Phys. Rev. D 58, 114006 (1998); ibid.E. Kou, 63, 054027 (2001).

[c18] S. Mantry, D. Pirjol, and I. Stewart, Phys. Rev. D (to be published), hep-ph/0306254.

[c19] S. Mishima, A. I. Sanda, hep-ph/0305073.

[c20] Partical Data Group, K. Hagiwara et al., Phys. Rev. D 66, 010001 (2002).

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Study of color suppressed modes $B^{0} \to D^{(*) 0} η^{(')}$

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Study of color suppressed modes B0→D(*)0η(′)

Abstract

References (20)

Study of color suppressed modes $B^{0} \to D^{(*) 0} η^{(')}$