Hairs of discrete symmetries and gravity

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Title
Hairs of discrete symmetries and gravity
Author(s)
Kang Sin Choi; Jihn E. Kim; Bumseok Kyae; Soonkeon Nam
Publication Date
2017-06
Journal
PHYSICS LETTERS B, v.769, no., pp.430 - 435
Publisher
ELSEVIER SCIENCE BV
Abstract
Gauge symmetries are known to be respected by gravity because gauge charges carry flux lines, but global charges do not carry flux lines and are not conserved by gravitational interaction. For discrete symmetries, they are spontaneously broken in the Universe, forming domain walls. Since the realization of discrete symmetries in the Universe must involve the vacuum expectation values of Higgs fields, a string-like configuration (hair) at the intersection of domain walls in the Higgs vacua can be realized. Therefore, we argue that discrete charges are also respected by gravity. (C) 2017 The Author(s). Published by Elsevier B.V
URI
https://pr.ibs.re.kr/handle/8788114/4257
ISSN
0370-2693
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
Center for Axion and Precision Physics Research(액시온 및 극한상호작용 연구단) > Journal Papers (저널논문)
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