Abstract
We compute the valence-quark leading twist parton distribution amplitudes (PDAs) of heavy pseudoscalar mesons ηc and ηb and find that they are both broader than the δ-like function while narrower than the asymptotic one. The evolution of distribution amplitude with momentum scale is then considered and PDAs will turn to a asymptotic form when the momentum goes to infinity.
Original language | English |
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Article number | 05020 |
Journal | EPJ Web of Conferences |
Volume | 113 |
DOIs | |
Publication status | Published - 25 Mar 2016 |
Externally published | Yes |
Event | 21st International Conference on Few-Body Problems in Physics, FB 2015 - Chicago, United States Duration: 18 May 2015 → 22 May 2015 |