We apply the lattice QCD method to the calculation of the Deuteron-like dibaryon system parton distribution function. We perform our calculation on three types of ensembles with two pion masses and two space-time volumes. The quasi-matrix elements are computed with proton momenta up to 2.46 GeV and we improve the signal of high momentum modes by applying the momentum smearing method. The results are then renormalized in the hybrid scheme and matched to light-cone parton distribution using large-momentum effective theory (LaMET). Our final results open a window for the study of the nuclear effect.
Bio:
孙鹏,2010年毕业于中国科学院研究生院,此后分别在北京大学,美国劳伦斯伯克利国家实验室,美国密西根州立大学从事博士后工作,2018年入职南京师范大学,2022年入职中国科学院近代物理研究所。 多年来一直从事量子色动力学的相关研究,在重夸克偶素物理,QCD因子化,QCD重求和,格点QCD等领域都有代表性的工作,目前发表论文49篇,其中有6篇被收录在Physics Review Letter 上,总引用2800多次。
Tencent Meeting: 332-285-847
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Prof. Zhaofeng Liu