Non-Negligible Electroweak Penguin Effects

Guo Libo; Li Xingyi

Chinese Physics C> 1999, Vol. 23> Issue(2) : 204-211

Non-Negligible Electroweak Penguin Effects

Guo Libo ^, ,
Li Xingyi

Institute of Particle Physics, Physics Centual China Normal University, Wuhan 4300792 Department of Physics, Hen an Normal University, Xinxiang 453002

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Abstract：
Starting from the leading logarithmic low energy effective Hamiltonian and the Baner-Stech-Wirbel(BSW) model, we calculate the electroweak penguin effects in the two-body hadronic pure penguin processes of B-meson. In the case of B-PP and PV decays, we find that the processes involving external Penguin diagrams receive large contributim from electroweak penguin effects which can even play dominant role.

References

[1]

l Kramer G, Palmer W, Simma H. Z. Phys., 1995, C66:429; Nucl. Phys., 1994, B428:772 CP violation, edited by Jarlskog C, Advanced Series on Directions in High Energy Physics, Vol.3(WorldScientific, Singapore, 1989) 3 Cilman F, Hagelin J. Phys. Lett., 1983, B126: lll; Buras A, Derard J. Phys. Lett., 1988, B203:2724 Buras A, Jamin M Lautenbacher M. Nucl. Phys., 1993, B408:209; Cichini M, Franco E, Martinelli G et al. Phys. Lett., 1993, B301:263; Flynn J, Randall L. Phys. Lett., 1989, B224:221; erratum ibid., 1990,B235: 4125 Buchalla G, Buras A, Lautebacher M. Rev. Mod. Phys., 1996, 68: 1125 6 Fakirov D, Stech B. Nucl. Phys., 1978, B133:315; Cabibbo N, Maiani L. Phys. Lett., 1978, B73:418 7 Baner M, Stech B, Wirbel M. Z. Phys., 1987, C34:103; ibid., 1985, C29: 6378 Chau L, Cheng H Sze W et al. Phys. Rev., 1991, D43:2176 9 Particle Data Group. Phys. Rev., 1996, D54: 110 Wolfenstein L Phys. Rev. Lett., 1983, 51:1945 11 Ail A, London D. Z. Phys., 1995, C65:431

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Guo Libo and Li Xingyi. Non-Negligible Electroweak Penguin Effects[J]. Chinese Physics C, 1999, 23(2): 204-211.

Guo Libo and Li Xingyi. Non-Negligible Electroweak Penguin Effects[J]. Chinese Physics C, 1999, 23(2): 204-211. shu

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Received: 1998-05-27
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Non-Negligible Electroweak Penguin Effects

Guo Libo ^,
Li Xingyi

Corresponding author: Guo Libo,

Institute of Particle Physics, Physics Centual China Normal University, Wuhan 4300792 Department of Physics, Hen an Normal University, Xinxiang 453002

Received Date: 1998-05-27
Accepted Date: 1900-01-01
Available Online: 1999-02-05

Abstract: Starting from the leading logarithmic low energy effective Hamiltonian and the Baner-Stech-Wirbel(BSW) model, we calculate the electroweak penguin effects in the two-body hadronic pure penguin processes of B-meson. In the case of B-PP and PV decays, we find that the processes involving external Penguin diagrams receive large contributim from electroweak penguin effects which can even play dominant role.