BROWSE

ITEM VIEW & DOWNLOAD

Topological defects and nano-Hz gravitational waves in aligned axion models

DC Field Value Language
dc.contributor.authorTetsutaro Higaki-
dc.contributor.authorKwang Sik Jeong-
dc.contributor.authorNaoya Kitajima-
dc.contributor.authorToyokazu Sekiguchi-
dc.contributor.authorFuminobu Takahash-
dc.date.available2017-01-20T08:31:56Z-
dc.date.created2017-01-06-
dc.date.issued2016-08-
dc.identifier.issn1029-8479-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/3284-
dc.description.abstractWe study the formation and evolution of topological defects in an aligned axion model with multiple Peccei-Quinn scalars, where the QCD axion is realized by a certain combination of the axions with decay constants much smaller than the conventional Peccei-Quinn breaking scale. When the underlying U(1) symmetries are spontaneously broken,the aligned structure in the axion field space exhibits itself as a complicated string-wall network in the real space. We find that the string-wall network likely survives until the QCD phase transition if the number of the Peccei-Quinn scalars is greater than two. The string-wall system collapses during the QCD phase transition, producing a significant amount of gravitational waves in the nano-Hz range at present. The typical decay constant is constrained to be belowO(100) TeV by the pulsar timing observations, and the constraint will be improved by a factor of 2 in the future SKA observations. (c) The Authors.-
dc.language영어-
dc.publisherSPRINGER-
dc.titleTopological defects and nano-Hz gravitational waves in aligned axion models-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000391754100003-
dc.identifier.scopusid2-s2.0-84981215120-
dc.identifier.rimsid58181ko
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorToyokazu Sekiguchi-
dc.identifier.doi10.1007/JHEP08(2016)044-
dc.identifier.bibliographicCitationJOURNAL OF HIGH ENERGY PHYSICS, v.2016, no.8, pp.044-
dc.relation.isPartOfJOURNAL OF HIGH ENERGY PHYSICS-
dc.citation.titleJOURNAL OF HIGH ENERGY PHYSICS-
dc.citation.volume2016-
dc.citation.number8-
dc.citation.startPage044-
dc.date.scptcdate2018-10-01-
dc.description.wostc9-
dc.description.scptc7-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalWebOfScienceCategoryPhysics, Particles & Fields-
dc.subject.keywordPlusNATURAL INFLATION-
dc.subject.keywordPlusCP CONSERVATION-
dc.subject.keywordPlusINVISIBLE AXION-
dc.subject.keywordPlusINVARIANCE-
dc.subject.keywordPlusCOSMOLOGY-
dc.subject.keywordPlusPSEUDOPARTICLES-
dc.subject.keywordPlusCONSTRAINTS-
dc.subject.keywordPlusSN1987A-
dc.subject.keywordPlusLIMITS-
dc.subject.keywordAuthorBeyond Standard Model-
dc.subject.keywordAuthorCosmology of Theories beyond the SM-
Appears in Collections:
HiddenCommunity > 1. Journal Papers (저널논문)
Files in This Item:
토요카즈박사님 논문 3.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse