Impacts of the Soft-Gluon Exchanges on B →ππ Decays

Chin. Phys. Lett.

2002, Vol. 19

Issue (11): 1596-1598 DOI:

Original Articles

Impacts of the Soft-Gluon Exchanges on B →ππ Decays

WU Xiang-Yao^1,2;LI Zuo-Hong³;CUI Jian-Ying³;HUANG Tao¹

¹Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918(4), Beijing 100039 ²Department of Physics, Huaibei Coal Industry Teachers College, Huangshan 235000 ³Department of Physics, Yantai University, Yantai 264005

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WU Xiang-Yao, LI Zuo-Hong, CUI Jian-Ying et al 2002 Chin. Phys. Lett. 19 1596-1598

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Abstract We have investigated the role of soft-gluon exchanges in B →ππ, using the light-cone sum rules in quantum chromodynamics. The calculations are carried out not only for the tree operators but also for the penguin operators. We conclude that soft-gluon exchanges contribute to the decay amplitudes, noticeably on some decay channels, and thus cannot be neglected.

Keywords: 13.25.Hw 11.55.Hx 12.38.Lg

Published: 01 November 2002

PACS:	13.25.Hw	(Decays of bottom mesons)
	11.55.Hx	(Sum rules)
	12.38.Lg	(Other nonperturbative calculations)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I11/01596

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	LI Zuo-Hong
	CUI Jian-Ying
	HUANG Tao

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