STI Publications - View Publication Form #16837
| Back to Search Results |
Publication Information
| Title | One-loop matching for quark dipole operators in a gradient-flow scheme | ||||
| Abstract | The quark chromo-electric dipole (qCEDM) operator is a CP-violating operator describing, at hadronic energies, beyond the standard model contributions to the electric dipole moment of particles with non-zero spin. In this paper we define renormalized dipole operators in a regularization-independent scheme using the gradient flow and we perform the matching at one loop in perturbation theory to renormalized operators of the same and lower dimension in the more familiar MS scheme. We also determine the matching coefficients for the quark chromo-magnetic dipole operator (qCMDM), which contributes for example to matrix elements relevant to CP-violating and CP-conserving kaon decays. The calculation provides a basis for future lattice-QCD computations of hadronic matrix elements of the qCEDM and qCMDM operators. | ||||
| Author(s) | Emanuele Mereghetti, Christopher Monahan, Matthew Rizik, Andrea Shindler, Peter Stoffer | ||||
| Publication Date | April 2022 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | The College of William and Mary, Williamsburg, VA | ||||
| Affiliation | Theory & Comp Physics / THEORY CENTER / THEORY CENTER | ||||
| Funding Source | Nuclear Physics (NP) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
|
||||
| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Journal of High Energy Physics |
| Refereed | Yes |
| Volume | 2022 |
| Issue | |
| Page(s) | 50 |
Attachments/Datasets/DOI Link
| Document(s) |
qcedm_pt.pdf
(STI Document)
Mereghetti2022_Article_One-loopMatchingForQuarkDipole.pdf
(Accepted Manuscript)
|
| DOI Link | |
| Dataset(s) | (none) |
| Back to Search Results |