Exclusive semileptonic and nonleptonic decays of the Bc meson

被引：206

作者：

Ivanov, MA ^{[1
]}

Körner, JG

Santorelli, P

机构：

[1] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia

[2] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[3] Univ Naples Federico II, Ist Nazl Fis Nucl, Dipartimento Sci Fis, Sez Napoli, Naples, Italy

来源：

PHYSICAL REVIEW D | 2006年 / 73卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.73.054024

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study exclusive nonleptonic and semileptonic decays of the B-c-meson within a relativistic constituent quark model previously developed by us. For the nonleptonic decays we use the factorizing approximation. We update our model parameters by using new experimental data for the mass and the lifetime of the B-c meson and the leptonic decay constants of the D-meson. We calculate the branching ratios for a large set of exclusive nonleptonic and semileptonic decays of the B-c meson and compare our results with the results of other studies. As a guide for further experimental exploration we provide explicit formulas for the full angular decay distributions in the cascade decays B-c(-)-> J/psi(-> l(+)l(-))+rho(-)(->pi(-)pi(0)) and B-c(-)-> J/psi(-> l(+)l(-))+W-off-shell(-)(-> l(-)+nu(l)).

引用

页数：15

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