Publications
Publication Information
Title | Heavy quark expansion for heavy-light light-cone operators |
Authors | Shuai Zhao |
JLAB number | JLAB-THY-19-3065 |
LANL number | (None) |
Other number | DOE/OR/23177-4791 |
Document Type(s) | (Journal Article) |
Associated with EIC: | No |
Supported by Jefferson Lab LDRD Funding: | No |
Funding Source: | Nuclear Physics (NP) |
Journal Compiled for Physical Review D Volume 101 Page(s) 071503(R) Refereed | |
Publication Abstract: | We generalize the celebrated heavy quark expansion to nonlocal QCD operators. By taking nonlocal heavy-light current on the light-cone as an example, we confirm that the collinear singularities are common between QCD operator and the corresponding operator in heavy quark effective theory (HQET), at the leading power of $1/M$ expansion. Based on a perturbative calculation in operator form at one-loop level, a factorization formula linking QCD and HQET operators is investigated and the matching coefficient is determined. The matching between QCD and HQET light-cone distribution amplitudes (LCDAs) as well as other momentum distributions of hadron can be derived as a consequence. |
Experiment Numbers: | other |
Group: | THEORY CENTER |
Document: | |
DOI: | https://doi.org/10.1103/PhysRevD.101.071503 |
Accepted Manuscript: | PhysRevD.101.071503.pdf |
Supporting Documents: | |
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