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T1  - Dimensional reduction of the Standard Model coupled to a new singlet scalar field 
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UR  - http://hdl.handle.net/10138/181074 
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A1  - Brauner, Tomas; Tenkanen, Tuomas V. I.; Tranberg, Anders; Vuorinen, Aleksi; Weir, David J. 
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Y1  - 2017 
LA  - eng 
AB  - We derive an effective dimensionally reduced theory for the Standard Model augmented by a real singlet scalar. We treat the singlet as a superheavy field and integrate it out, leaving an effective theory involving only the Higgs and SU(2)(L) x U(1)(y) gauge fields, identical to the one studied previously for the Standard Model. This opens up the possibility of efficiently computing the order and strength of the electroweak phase transition, numerically and nonperturbatively, in this extension of... 
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KW  - Beyond Standard Model; Effective field theories; Thermal Field Theory; ELECTROWEAK PHASE-TRANSITION; HIGGS-BOSON COUPLINGS; BARYON ASYMMETRY; CP-VIOLATION; NONPERTURBATIVE ANALYSIS; EARLY UNIVERSE; BARYOGENESIS; TEMPERATURE; LEPTOGENESIS; 114 Physical sciences 
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