Bariogénese

Em Cosmologia, a bariogénese é o termo genérico usado para designar os processos físicos hipotéticos que produziram uma assimetria entre bariões e antibariões no início do Universo, resultando na produção de quantidades substanciais de matéria residual do qual é composto o universo do tempo actual.

As teorias de bariogénese — das quais se destacam a bariogénese electrofraca e a bariogénese GUT — empregam sub-disciplinas da Física, tais como a teoria quântica de campo e física estatística, para descrever os possíveis mecanismos de bariogénese. A diferença fundamental entre as teorias de bariogénse é a descrição das interacções entre partículas fundamentais.

O passo a seguir à bariogénese é uma melhor compreensão da nucleossíntese do Big Bang, durante a qual se formaram os primeiros núcleos atómicos leves.

Bibliografia

  • Kolb, E. W.; Turner, M. S. (1994). The Early Universe (em inglês). [S.l.]: Perseus Publishing. ISBN 978-0-201-62674-2 
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