Open AccessResearch on D→Klv～l decay
Author(s) -
Xiaofeng Wu,
Gong Pi-Feng,
Su Xi-Yu,
Xiaojing Liu,
Xi-Hui Fan,
Wang Li,
Shi Zong-Hua,
Guo Yi-qing
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.3375
Subject(s) - physics , branching fraction , twist , correlative , form factor (electronics) , quantum chromodynamics , function (biology) , particle physics , light cone , nuclear physics , mathematics , quantum mechanics , geometry , evolutionary biology , biology , linguistics , philosophy
In this paper, the D→Klvl decay is researched using by QCD light cone sum rules. Firstly, the form factor of D→K is calculated by choosing a new correlative function to eliminate the effect caused by the uncertainty of twist-3 function, so the calculation result of form factor is more precise, and the branching ratio is consistent with the experimental data.