| THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
|
|
|
|
Bs→ φπ0Decay in the Extra Down-Type Quark Model |
| WANG Shuai-Wei, HUANG Jin-Shu, LÜ Lin-Xia
|
| Department of Physics, Nanyang Normal University, Nanyang 473061 |
|
| Cite this article: |
|
WANG Shuai-Wei, HUANG Jin-Shu, LÜ et al 2010 Chin. Phys. Lett. 27 121301 |
|
|
|
|
Abstract Using the QCD factorization approach, we investigate the electro-weak penguin dominated process Bs→φπ0 in the extra down-type quark (EDQS) model. We calculate the effects of new physics (NP) on the branching fraction and direct CP asymmetry of the decay mode. It is found that the branching fraction can be increased by 15% points or dropped by 13% points than the standard model (SM) value, and its direct CP asymmetry can be increased by 35% points or dropped by 37% points than the SM one. The effects of NP on the direct CP asymmetry are more obvious than on the branching fraction. If this decay mode could be measured in the upcoming LHCb experiment, these results we obtain will be useful for further studies of the EDQS model.
|
| Keywords:
13.25.Hw
12.38.Bx
12.15.Mm
|
|
|
Received: 17 August 2010
Published: 23 November 2010
|
|
|
|
|
|
|
|
[1] Hua J, Kim C S and Li Y 2010 Phys. Lett. B 690 508
[2] Beneke M and Neubert M 2003 Nucl. Phys. B 675 333
[3] Bando M and Kugo T 1999 Prog. Theor. Phys. 101 1313
Bando M, Kugo T and Yoshioka K 2000 Prog. Theor. Phys. 104 211
[4] Grossman Y and London D 1998 In Heavy Flavours II (Singapore: World Scientific)
[5] Gronau M and London D 2000 Phys. Rev. D 55 2845
Giri A K and Mohanta R 2003 Phys. Rev. D 68 014020
Mohanta R 2005 Phys. Rev. D 71 114013
[6] Atwood D and Hiller G hep-ph/0307251
[7] Buchalla G, Buras A J and Lautenbacher M E 1996 Rev. Mod. Phys. 68 1125
[8] Mawlong B, Mohanta R and Giri A K 2008 Phys. Lett. B 668 116
[9] Giri A K and Mohanta R 2003 Phys. Rev. D 68 014020
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
