%0 Journal Article %1 Giacosa2010Deviation %A Giacosa, Francesco %A Pagliara, Giuseppe %D 2010 %K resonance %T Deviation from the exponential decay law in relativistic quantum field theory: the example of strongly decaying particles %U http://arxiv.org/abs/1005.4817 %X We show that a short-time regime, in which a deviation from the exponential decay law occurs, exists also in the framework of a superrenormalizable relativistic quantum field theory. This, in turn, implies the possibility of a quantum Zeno effect also for elementary decays. The attention is then focused on the typical order of magnitude of strong decay rates of mesons: for these particles, strong deviations from the exponential decay law are present during a period of time comparable with their mean life time. As a concrete example, the case of the \$\$ meson is studied.

@article{Giacosa2010Deviation, abstract = {{We show that a short-time regime, in which a deviation from the exponential decay law occurs, exists also in the framework of a superrenormalizable relativistic quantum field theory. This, in turn, implies the possibility of a quantum Zeno effect also for elementary decays. The attention is then focused on the typical order of magnitude of strong decay rates of mesons: for these particles, strong deviations from the exponential decay law are present during a period of time comparable with their mean life time. As a concrete example, the case of the \$\rho \$ meson is studied.}}, added-at = {2019-02-23T22:09:48.000+0100}, archiveprefix = {arXiv}, author = {Giacosa, Francesco and Pagliara, Giuseppe}, biburl = {https://www.bibsonomy.org/bibtex/236d099607ea5030f66720dc203d74d6e/cmcneile}, citeulike-article-id = {7220581}, citeulike-linkout-0 = {http://arxiv.org/abs/1005.4817}, citeulike-linkout-1 = {http://arxiv.org/pdf/1005.4817}, day = 26, eprint = {1005.4817}, interhash = {7d7a314db07886add70e1f1d9b2f8ea6}, intrahash = {36d099607ea5030f66720dc203d74d6e}, keywords = {resonance}, month = may, posted-at = {2010-05-27 09:57:41}, priority = {2}, timestamp = {2019-02-23T22:15:27.000+0100}, title = {{Deviation from the exponential decay law in relativistic quantum field theory: the example of strongly decaying particles}}, url = {http://arxiv.org/abs/1005.4817}, year = 2010 }