Author:
Zhang Qi-An,Hua Jun,Huang Fei,Li Renbo,Li Yuanyuan,Lü Caidian,Sun Peng,Sun Wei,Wang Wei,Yang Yibo
Abstract
Abstract
While the standard model is the most successful theory to describe all the interactions and constituents of elementary particle physics, it has been constantly scrutinized for over four decades. Weak decays of charm quarks can be used to measure the coupling strength between quarks in different families and serve as an ideal probe for CP violation. As the lowest charm-strange baryons with three different flavors,
baryons (composed of
or
) have been extensively studied in experiments. In this study, we use state-of-the-art lattice QCD techniques to generate 2+1 clover fermion ensembles with two lattice spacings,
. Then, we present the first ab-initio lattice QCD calculation of the
form factors. Our theoretical results for the
decay widths are consistent with and approximately two times more precise than the latest measurements by the ALICE and Belle collaborations. Based on the latest experimental measurements, we independently obtain the quark-mixing matrix element
, which is in good agreement with results from other theoretical approaches.
Funder
National Natural Science Foundation of China
Subject
Astronomy and Astrophysics,Instrumentation,Nuclear and High Energy Physics
Cited by
24 articles.
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