期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 10, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP10(2018)192
关键词
Solitons Monopoles and Instantons; Field Theories in Lower Dimensions; Nonperturbative Effects
资金
- FAPEMA - Fundacao de Amparo a Pesquisa e ao Desenvolvimento do Maranhao [PRONEX 01452/14, PRONEM 01852/14, APCINTER-00256/14, COOPI-07838/17, Universal-01061/17, Universal-01191/16]
- CNPq (brazilian agency) [309842/2015-8]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - Brasil (CAPES) [001]
- FEDER - Fundo Europeu de Desenvolvimento Regional funds through the COMPETE 2020 - Operational Programme for Competitiveness and Internationalisation (POCI)
- Portuguese funds through FCT - Fundacao para a Ciencia e a Tecnologia [POCI-01-0145-FEDER-031938]
- FCT [UID/FIS/04434/2013]
In this work we consider kink-antikink and antikink-kink collisions in a modified phi(4) model with a false vacuum characterized by a dimensionless parameter E. The usual phi(4) model is recovered for E = 0. We investigate the E << 1 regime where the kink in the presence of false vacuum can be understood as a small deformation of the standard kink for the phi(4) model. We show that the attractive interaction between the kink-antikink pair leads to a rich scattering pattern, in some cases delaying considerably the false vacuum decay.
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