%0 Journal Article %1 eichhorn2024suppression %A Eichhorn, Astrid %A Ray, Shouryya %D 2024 %J Phys. Lett. B %K c %P 138529 %R https://doi.org/10.1016/j.physletb.2024.138529 %T Suppression of proton decay in quantum gravity %U https://www.sciencedirect.com/science/article/pii/S037026932400087X %V 850 %X The bound on the proton lifetime is one of a small handful of observations that constrains physics not far from the Planck scale. This calls for a calculation of the proton lifetime in quantum gravity. Here, we calculate how quantum fluctuations of the metric impact four-fermion interactions which mediate proton decay. We find that quantum gravity lowers the scaling dimension of the four-fermion interaction, suppressing proton decay and raising the proton lifetime significantly. As a special case, we analyze asymptotically safe quantum gravity, in which we discover that proton-decay-mediating four-fermion interactions are strictly zero.

@article{eichhorn2024suppression, abstract = {The bound on the proton lifetime is one of a small handful of observations that constrains physics not far from the Planck scale. This calls for a calculation of the proton lifetime in quantum gravity. Here, we calculate how quantum fluctuations of the metric impact four-fermion interactions which mediate proton decay. We find that quantum gravity lowers the scaling dimension of the four-fermion interaction, suppressing proton decay and raising the proton lifetime significantly. As a special case, we analyze asymptotically safe quantum gravity, in which we discover that proton-decay-mediating four-fermion interactions are strictly zero.}, added-at = {2024-04-26T14:54:17.000+0200}, author = {Eichhorn, Astrid and Ray, Shouryya}, biburl = {https://www.bibsonomy.org/bibtex/21cc79aed30a23e53c0dcf332c47829cb/ctqmat}, day = 01, doi = {https://doi.org/10.1016/j.physletb.2024.138529}, interhash = {e952ec266ca2081f6eecf3dc1aa3fbdc}, intrahash = {1cc79aed30a23e53c0dcf332c47829cb}, issn = {03702693}, journal = {Phys. Lett. B}, keywords = {c}, month = {03}, pages = 138529, timestamp = {2024-04-26T14:54:17.000+0200}, title = {Suppression of proton decay in quantum gravity}, url = {https://www.sciencedirect.com/science/article/pii/S037026932400087X}, volume = 850, year = 2024 }