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JHEP01(2014)165.pdf | 2.07 MB | Adobe PDF | 見る/開く |
タイトル: | Instability of colliding metastable strings |
著者: | Hiramatsu, Takashi Eto, Minoru Kamada, Kohei Kobayashi, Tatsuo Ookouchi, Yutaka |
著者名の別形: | 平松, 尚志 |
キーワード: | Solitons Monopoles and Instantons String theory and cosmic strings Global Symmetries |
発行日: | Jan-2014 |
出版者: | Springer Berlin Heidelberg |
誌名: | Journal of High Energy Physics |
巻: | 2014 |
号: | 1 |
論文番号: | 165 |
抄録: | The breaking of U(1) R symmetry plays a crucial role in modeling the breaking of supersymmetry (SUSY). In the models that possess both SUSY preserving and SUSY breaking vacua, tube-like cosmic strings called R-tubes, whose surfaces are constituted by domain walls interpolating a false and a true vacuum with some winding numbers, can exist. Their (in)stability can strongly constrain SUSY breaking models theirselves. In the present study, we investigate the dynamical (in)stability of two colliding metastable tube-like strings by field-theoretic simulations. From them, we find that the strings become unstable, depending on the relative collision angle and speed of two strings, and the false vacuum is eventually filled out by the true vacuum owing to rapid expansion of the strings or unstable bubbles created as remnants of the collision. |
著作権等: | Open Access, © The Authors. The final publication is available at link.springer.com |
URI: | http://hdl.handle.net/2433/184738 |
DOI(出版社版): | 10.1007/JHEP01(2014)165 |
出現コレクション: | 学術雑誌掲載論文等 |
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