Tootfinder

Renormalon effect of quasi-PDF in gradient flow formalism
Jia-lu Zhang
https://arxiv.org/abs/2507.18233 https://arxiv.org/pdf/2507.18233

Renormalon effect of quasi-PDF in gradient flow formalism
We investigate the behavior of renormalon ambiguities in the context of quasi-parton distribution functions (quasi-PDFs) defined using gradient-flowed fields. We examine how this impacts the UV and IR renomalons. Using the large $β_0$ approximation, we find that UV renormalons for zero external momentum quasi-PDF are eliminated by the flow, while IR renormalons persist but are modified at finite flow time. Moreover, we observe that large numerical coefficients associated with flowed operators …

🏳️‍🌈 Orbšn banned Budapest pride. People of Budapest:F*ck you, I won't do what you tell me. The mass flowed for 1 and a half hours after I made this picture. A day I will never forget. : r/europe
https://www.reddit.com/r/europe/comments/1lmtsld/orbán_banned_budapest_pride_people_of_budapestfck/

A new approach to quark mass determination using the gradient flow
Hiromasa Takaura, Robert V. Harlander, Fabian Lange
https://arxiv.org/abs/2506.09537 htt…

A new approach to quark mass determination using the gradient flow
We propose a new method to determine quark masses using ratios of the vacuum-expectation values (VEVs) of flowed quark bilinear operators. They can be expressed as functions of the flow time $t$ and the ${\overline {\rm MS}}$ quark mass $\overline{m}$, which can then be determined by matching with the corresponding lattice results. Motivated by this, we evaluate these VEVs perturbatively through next-to-leading order in the strong coupling. We provide the results as expansions in the limits of …