| Full text | |
| Author(s): |
Boito, Diogo
;
Masjuan, Pere
;
Oliani, Fabio
Total Authors: 3
|
| Document type: | Journal article |
| Source: | NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS; v. 309, p. 6-pg., 2020-01-01. |
| Abstract | |
The mathematical method of Pade approximants is put forward to reconstruct the Borel transformed series of the Adler function and extract higher-order corrections in a model-independent way. The use of the D-log Pade approximants provides valuable information to its analytic structure and yields, together with the standard Pade approximants, reliable model-independent predictions of the higher-order coefficients, as for example, c(5)(,1) = 277 +/- 51. Such reconstruction strongly favours the use of fixed-order perturbation theory (FOPT) for the renormalization-scale setting. (AU) | |
| FAPESP's process: | 15/20689-9 - Precise determination of fundamental QCD parameters |
| Grantee: | Diogo Rodrigues Boito |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 16/01341-4 - Padé approximants and the QCD perturbative series for tau decays into hadrons |
| Grantee: | Fabio Henrique Oliani |
| Support Opportunities: | Scholarships in Brazil - Master |