Cynolter, Gábor and Lendvai, Endre (2014) Corrections to gauge theories in effective quantum gravity with a cutoff. MODERN PHYSICS LETTERS A, 29 (4). ISSN 0217-7323
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Abstract
We calculate the lowest order quantum gravity contributions to QED beta function in an effective field theory picture with a momentum cutoff. We use a recently proposed four-dimensional improved momentum cutoff that preserves gauge and Lorentz symmetries. We find that there is nonvanishing quadratic contribution to the photon two-point function but that does not lead to the running of the original coupling after renormalization. We argue that gravity cannot turn gauge theories asymptotically free. © 2014 World Scientific Publishing Company.
| Item Type: | Article |
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| Uncontrolled Keywords: | gravity; QED; one-loop; cutoff regularization; beta function; |
| Subjects: | Q Science / természettudomány > QC Physics / fizika |
| SWORD Depositor: | MTMT SWORD |
| Depositing User: | MTMT SWORD |
| Date Deposited: | 09 Feb 2024 13:19 |
| Last Modified: | 09 Feb 2024 13:19 |
| URI: | http://real.mtak.hu/id/eprint/187983 |
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