Identification of perturbative ambiguity canceled against bion
It was conjectured that bions, semi-classical objects found in a compactified spacetime, are responsible for the cancellation of the so-called renormalon ambiguities. Contrary to the conjecture, we argue that the ambiguity due to the bion corresponds to the proliferation of Feynman diagrams. We poin...
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2020-08-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269320303749 |
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doaj-b8bd8cd565984ad4b88bdca083207b372020-11-25T03:38:39ZengElsevierPhysics Letters B0370-26932020-08-01807135570Identification of perturbative ambiguity canceled against bionOkuto Morikawa0Hiromasa Takaura1Department of Physics, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, JapanCorresponding author.; Department of Physics, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, JapanIt was conjectured that bions, semi-classical objects found in a compactified spacetime, are responsible for the cancellation of the so-called renormalon ambiguities. Contrary to the conjecture, we argue that the ambiguity due to the bion corresponds to the proliferation of Feynman diagrams. We point out that the amplitudes of almost all Feynman diagrams are enhanced due to modifications of the infrared structure of perturbation theory upon an S1 compactification and twisted boundary conditions. Our findings clarify the role of the semi-classical object in resurgence structure, which has been a controversial issue in recent years.http://www.sciencedirect.com/science/article/pii/S0370269320303749 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Okuto Morikawa Hiromasa Takaura |
| spellingShingle |
Okuto Morikawa Hiromasa Takaura Identification of perturbative ambiguity canceled against bion Physics Letters B |
| author_facet |
Okuto Morikawa Hiromasa Takaura |
| author_sort |
Okuto Morikawa |
| title |
Identification of perturbative ambiguity canceled against bion |
| title_short |
Identification of perturbative ambiguity canceled against bion |
| title_full |
Identification of perturbative ambiguity canceled against bion |
| title_fullStr |
Identification of perturbative ambiguity canceled against bion |
| title_full_unstemmed |
Identification of perturbative ambiguity canceled against bion |
| title_sort |
identification of perturbative ambiguity canceled against bion |
| publisher |
Elsevier |
| series |
Physics Letters B |
| issn |
0370-2693 |
| publishDate |
2020-08-01 |
| description |
It was conjectured that bions, semi-classical objects found in a compactified spacetime, are responsible for the cancellation of the so-called renormalon ambiguities. Contrary to the conjecture, we argue that the ambiguity due to the bion corresponds to the proliferation of Feynman diagrams. We point out that the amplitudes of almost all Feynman diagrams are enhanced due to modifications of the infrared structure of perturbation theory upon an S1 compactification and twisted boundary conditions. Our findings clarify the role of the semi-classical object in resurgence structure, which has been a controversial issue in recent years. |
| url |
http://www.sciencedirect.com/science/article/pii/S0370269320303749 |
| work_keys_str_mv |
AT okutomorikawa identificationofperturbativeambiguitycanceledagainstbion AT hiromasatakaura identificationofperturbativeambiguitycanceledagainstbion |
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