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Reflections on Parity Breaking

<!--HTML--><p>One approach to the Strong CP Problem (known as Nelson-Barr models) is to assume that parity is a gauge symmetry, which is spontaneously broken in the world around us. In this talk, I will argue that the domain walls formed from spontaneous parity breaking are exactly stabl...

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Autor principal: McNamara, Jacob
Lenguaje:eng
Publicado: 2023
Materias:
Acceso en línea:http://cds.cern.ch/record/2858421
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author McNamara, Jacob
author_facet McNamara, Jacob
author_sort McNamara, Jacob
collection CERN
description <!--HTML--><p>One approach to the Strong CP Problem (known as Nelson-Barr models) is to assume that parity is a gauge symmetry, which is spontaneously broken in the world around us. In this talk, I will argue that the domain walls formed from spontaneous parity breaking are exactly stable. This stability can be understood as the result of an unusual sort of conserved charge, which has features in common with both gauge charges and global charges. We will explain how these charges are compatible with the expected absence of global symmetries in quantum gravity, as well as their relationship with the Swampland Cobordism Conjecture.</p>
id cern-2858421
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2023
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spelling cern-28584212023-05-09T20:18:07Zhttp://cds.cern.ch/record/2858421engMcNamara, JacobReflections on Parity BreakingReflections on Parity BreakingTH String Theory Seminar<!--HTML--><p>One approach to the Strong CP Problem (known as Nelson-Barr models) is to assume that parity is a gauge symmetry, which is spontaneously broken in the world around us. In this talk, I will argue that the domain walls formed from spontaneous parity breaking are exactly stable. This stability can be understood as the result of an unusual sort of conserved charge, which has features in common with both gauge charges and global charges. We will explain how these charges are compatible with the expected absence of global symmetries in quantum gravity, as well as their relationship with the Swampland Cobordism Conjecture.</p>oai:cds.cern.ch:28584212023
spellingShingle TH String Theory Seminar
McNamara, Jacob
Reflections on Parity Breaking
title Reflections on Parity Breaking
title_full Reflections on Parity Breaking
title_fullStr Reflections on Parity Breaking
title_full_unstemmed Reflections on Parity Breaking
title_short Reflections on Parity Breaking
title_sort reflections on parity breaking
topic TH String Theory Seminar
url http://cds.cern.ch/record/2858421
work_keys_str_mv AT mcnamarajacob reflectionsonparitybreaking