Perturbative Quantum Chromodynamics Effects in B<suB>c</suB> →PP Decays

Chin. Phys. Lett.

2001, Vol. 18

Issue (4): 498-500 DOI:

Original Articles

Perturbative Quantum Chromodynamics Effects in B_c →PP Decays

GUO Li-Bo;DU Dong-Sheng

Department of Physics, Wuhan University, Wuhan 430072 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039

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GUO Li-Bo, DU Dong-Sheng 2001 Chin. Phys. Lett. 18 498-500

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Abstract Using the leading order low energy effective Hamiltonian, we calculate B_c →PP (where P stands for pseudoscalar meson) decays induced by pure W-emission mechanisms. In order to estimate the hadronic matrix elements, we apply the perturbative quantum chromodynamics (PQCD) method proposed by Szczepaniak et al. [Phys. Lett. B 243 (1990) 287] and developed by Simma et al. [Phys. Lett. B 272 (1991) 395]. Comparing with predictions of other models, we find that the PQCD method is suitable for these decays and therefore the spectator ansatz seems questionable.

Keywords: 12.15.Ji 12.38.Bx 13.25.Hw

Published: 01 April 2001

PACS:	12.15.Ji	(Applications of electroweak models to specific processes)
	12.38.Bx	(Perturbative calculations)
	13.25.Hw	(Decays of bottom mesons)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2001/V18/I4/0498

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