Correlator with tensor currents and two masses at two loops.
Saved in:
| Title: | Correlator with tensor currents and two masses at two loops. |
|---|---|
| Authors: | Generet, Terry1 (AUTHOR) tg513@cam.ac.uk, Gubernari, Nico2 (AUTHOR) nicogubernari@gmail.com, Loisa, Eetu2 (AUTHOR) eal47@cam.ac.uk |
| Source: | European Physical Journal C -- Particles & Fields. Feb2026, Vol. 86 Issue 2, p1-8. 8p. |
| Subjects: | Quarks, Perturbation theory, Tensor algebra, Quantum chromodynamics, Dispersion relations |
| Abstract: | We calculate the vacuum-to-vacuum correlator of two flavour-non-diagonal tensor currents of massive quarks, retaining the full dependence on the two quark masses and the external momentum. For the first time, we include perturbative corrections up to next-to-leading order. Our fully analytical expressions are provided in machine-readable form. Furthermore, we present numerical results for various input parameters, including an estimate of the scale uncertainties. Our results are essential input for applications of dispersive methods, including unitarity bounds and QCD sum rules. [ABSTRACT FROM AUTHOR] |
| Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | We calculate the vacuum-to-vacuum correlator of two flavour-non-diagonal tensor currents of massive quarks, retaining the full dependence on the two quark masses and the external momentum. For the first time, we include perturbative corrections up to next-to-leading order. Our fully analytical expressions are provided in machine-readable form. Furthermore, we present numerical results for various input parameters, including an estimate of the scale uncertainties. Our results are essential input for applications of dispersive methods, including unitarity bounds and QCD sum rules. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 14346044 |
| DOI: | 10.1140/epjc/s10052-026-15305-y |
