Journal article 651 views 49 downloads
Toward minimal composite Higgs models from regular geometries in bottom-up holography
Physical Review D, Volume: 107, Issue: 11
Swansea University Authors: Ali Fatemiabhari, Maurizio Piai
-
PDF | Version of Record
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Download (2.62MB)
DOI (Published version): 10.1103/physrevd.107.115021
Abstract
We study a bottom-up, holographic description of a field theory yielding the spontaneous break- ing of an approximate SO(5) global symmetry to its SO(4) subgroup. The weakly-coupled, six- dimensional gravity dual has regular geometry. One of the dimensions is compactified on a circle that shrinks sm...
Published in: | Physical Review D |
---|---|
ISSN: | 2470-0010 2470-0029 |
Published: |
American Physical Society (APS)
|
Online Access: |
Check full text
|
URI: | https://cronfa.swan.ac.uk/Record/cronfa63349 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
first_indexed |
2023-05-05T07:38:19Z |
---|---|
last_indexed |
2023-05-05T07:38:19Z |
id |
cronfa63349 |
recordtype |
SURis |
fullrecord |
<?xml version="1.0" encoding="utf-8"?><rfc1807 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><bib-version>v2</bib-version><id>63349</id><entry>2023-05-05</entry><title>Toward minimal composite Higgs models from regular geometries in bottom-up holography</title><swanseaauthors><author><sid>1fff8a27c5649675cda6e190dc0c74c3</sid><firstname>Ali</firstname><surname>Fatemiabhari</surname><name>Ali Fatemiabhari</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>3ce295f2c7cc318bac7da18f9989d8c3</sid><ORCID>0000-0002-2251-0111</ORCID><firstname>Maurizio</firstname><surname>Piai</surname><name>Maurizio Piai</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2023-05-05</date><deptcode>FGSEN</deptcode><abstract>We study a bottom-up, holographic description of a field theory yielding the spontaneous break- ing of an approximate SO(5) global symmetry to its SO(4) subgroup. The weakly-coupled, six- dimensional gravity dual has regular geometry. One of the dimensions is compactified on a circle that shrinks smoothly to zero size at a finite value of the holographic direction, hence introducing a physical scale in a way that mimics the effect of confinement in the dual four-dimensional field theory. We study the spectrum of small fluctuations of the bulk fields carrying SO(5) quantum numbers, which can be interpreted as spin-0 and spin-1 bound states in the dual field theory. This work supplements an earlier publication, focused only on the SO(5) singlet states. We explore the parameter space of the theory, paying particular attention to composite states that have the right quantum numbers to be identified as pseudo-Nambu-Goldstone Bosons (PNGBs).We find that in this model the PNGBs are generally heavy, with masses of the same order as other bound states, indicating the presence of a sizeable amount of explicit symmetry breaking in the field theory side. But we also find a qualitatively new, unexpected result. When the dimension of the field-theory operator inducing SO(5) breaking is close to half of the space-time dimensionality, there exists a region of parameter space in which the PNGBs and the lightest scalar are both parametrically light in comparison to all other bound states of the field theory. Although this region is known to yield metastable classical backgrounds, this finding might be relevant to model building in the composite Higgs context.</abstract><type>Journal Article</type><journal>Physical Review D</journal><volume>107</volume><journalNumber>11</journalNumber><paginationStart/><paginationEnd/><publisher>American Physical Society (APS)</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>2470-0010</issnPrint><issnElectronic>2470-0029</issnElectronic><keywords/><publishedDay>0</publishedDay><publishedMonth>0</publishedMonth><publishedYear>0</publishedYear><publishedDate>0001-01-01</publishedDate><doi>10.1103/physrevd.107.115021</doi><url>http://dx.doi.org/10.1103/physrevd.107.115021</url><notes/><college>COLLEGE NANME</college><department>Science and Engineering - Faculty</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>FGSEN</DepartmentCode><institution>Swansea University</institution><apcterm>Other</apcterm><funders>The work of AF has been supported by the STFC Consolidated Grant No. ST/V507143/1. The work of MP has been supported in part by the STFC Consolidated Grants No. ST/P00055X/1 and No. ST/T000813/1. MP received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program under Grant Agreement No. 813942.</funders><projectreference/><lastEdited>2023-07-11T13:55:14.5031206</lastEdited><Created>2023-05-05T08:31:42.1130041</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Biosciences, Geography and Physics - Physics</level></path><authors><author><firstname>Daniel</firstname><surname>Elander</surname><orcid>0000-0001-6348-8021</orcid><order>1</order></author><author><firstname>Ali</firstname><surname>Fatemiabhari</surname><order>2</order></author><author><firstname>Maurizio</firstname><surname>Piai</surname><orcid>0000-0002-2251-0111</orcid><order>3</order></author></authors><documents><document><filename>63349__27904__b3b76cdb9c2145fea8ce44fa0400e905.pdf</filename><originalFilename>63349.pdf</originalFilename><uploaded>2023-06-21T10:22:14.0000072</uploaded><type>Output</type><contentLength>2743324</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><documentNotes>Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>https://creativecommons.org/licenses/by/4.0/</licence></document></documents><OutputDurs><OutputDur><Id>194</Id><DataControllerName>Ali Fatemiabhari</DataControllerName><DataControllerOrcid>0000-0003-1369-6505</DataControllerOrcid><DataControllerEmail>2127756@swansea.ac.uk</DataControllerEmail><IsDataAvailableOnline>true</IsDataAvailableOnline><DataNotAvailableOnlineReasonId xsi:nil="true"/><DurUrl>https://zenodo.org/record/7705408</DurUrl><IsDurRestrictions>false</IsDurRestrictions><DurRestrictionReasonId xsi:nil="true"/><DurEmbargoDate xsi:nil="true"/></OutputDur></OutputDurs></rfc1807> |
spelling |
v2 63349 2023-05-05 Toward minimal composite Higgs models from regular geometries in bottom-up holography 1fff8a27c5649675cda6e190dc0c74c3 Ali Fatemiabhari Ali Fatemiabhari true false 3ce295f2c7cc318bac7da18f9989d8c3 0000-0002-2251-0111 Maurizio Piai Maurizio Piai true false 2023-05-05 FGSEN We study a bottom-up, holographic description of a field theory yielding the spontaneous break- ing of an approximate SO(5) global symmetry to its SO(4) subgroup. The weakly-coupled, six- dimensional gravity dual has regular geometry. One of the dimensions is compactified on a circle that shrinks smoothly to zero size at a finite value of the holographic direction, hence introducing a physical scale in a way that mimics the effect of confinement in the dual four-dimensional field theory. We study the spectrum of small fluctuations of the bulk fields carrying SO(5) quantum numbers, which can be interpreted as spin-0 and spin-1 bound states in the dual field theory. This work supplements an earlier publication, focused only on the SO(5) singlet states. We explore the parameter space of the theory, paying particular attention to composite states that have the right quantum numbers to be identified as pseudo-Nambu-Goldstone Bosons (PNGBs).We find that in this model the PNGBs are generally heavy, with masses of the same order as other bound states, indicating the presence of a sizeable amount of explicit symmetry breaking in the field theory side. But we also find a qualitatively new, unexpected result. When the dimension of the field-theory operator inducing SO(5) breaking is close to half of the space-time dimensionality, there exists a region of parameter space in which the PNGBs and the lightest scalar are both parametrically light in comparison to all other bound states of the field theory. Although this region is known to yield metastable classical backgrounds, this finding might be relevant to model building in the composite Higgs context. Journal Article Physical Review D 107 11 American Physical Society (APS) 2470-0010 2470-0029 0 0 0 0001-01-01 10.1103/physrevd.107.115021 http://dx.doi.org/10.1103/physrevd.107.115021 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University Other The work of AF has been supported by the STFC Consolidated Grant No. ST/V507143/1. The work of MP has been supported in part by the STFC Consolidated Grants No. ST/P00055X/1 and No. ST/T000813/1. MP received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program under Grant Agreement No. 813942. 2023-07-11T13:55:14.5031206 2023-05-05T08:31:42.1130041 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Daniel Elander 0000-0001-6348-8021 1 Ali Fatemiabhari 2 Maurizio Piai 0000-0002-2251-0111 3 63349__27904__b3b76cdb9c2145fea8ce44fa0400e905.pdf 63349.pdf 2023-06-21T10:22:14.0000072 Output 2743324 application/pdf Version of Record true Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. true eng https://creativecommons.org/licenses/by/4.0/ 194 Ali Fatemiabhari 0000-0003-1369-6505 2127756@swansea.ac.uk true https://zenodo.org/record/7705408 false |
title |
Toward minimal composite Higgs models from regular geometries in bottom-up holography |
spellingShingle |
Toward minimal composite Higgs models from regular geometries in bottom-up holography Ali Fatemiabhari Maurizio Piai |
title_short |
Toward minimal composite Higgs models from regular geometries in bottom-up holography |
title_full |
Toward minimal composite Higgs models from regular geometries in bottom-up holography |
title_fullStr |
Toward minimal composite Higgs models from regular geometries in bottom-up holography |
title_full_unstemmed |
Toward minimal composite Higgs models from regular geometries in bottom-up holography |
title_sort |
Toward minimal composite Higgs models from regular geometries in bottom-up holography |
author_id_str_mv |
1fff8a27c5649675cda6e190dc0c74c3 3ce295f2c7cc318bac7da18f9989d8c3 |
author_id_fullname_str_mv |
1fff8a27c5649675cda6e190dc0c74c3_***_Ali Fatemiabhari 3ce295f2c7cc318bac7da18f9989d8c3_***_Maurizio Piai |
author |
Ali Fatemiabhari Maurizio Piai |
author2 |
Daniel Elander Ali Fatemiabhari Maurizio Piai |
format |
Journal article |
container_title |
Physical Review D |
container_volume |
107 |
container_issue |
11 |
institution |
Swansea University |
issn |
2470-0010 2470-0029 |
doi_str_mv |
10.1103/physrevd.107.115021 |
publisher |
American Physical Society (APS) |
college_str |
Faculty of Science and Engineering |
hierarchytype |
|
hierarchy_top_id |
facultyofscienceandengineering |
hierarchy_top_title |
Faculty of Science and Engineering |
hierarchy_parent_id |
facultyofscienceandengineering |
hierarchy_parent_title |
Faculty of Science and Engineering |
department_str |
School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics |
url |
http://dx.doi.org/10.1103/physrevd.107.115021 |
document_store_str |
1 |
active_str |
0 |
description |
We study a bottom-up, holographic description of a field theory yielding the spontaneous break- ing of an approximate SO(5) global symmetry to its SO(4) subgroup. The weakly-coupled, six- dimensional gravity dual has regular geometry. One of the dimensions is compactified on a circle that shrinks smoothly to zero size at a finite value of the holographic direction, hence introducing a physical scale in a way that mimics the effect of confinement in the dual four-dimensional field theory. We study the spectrum of small fluctuations of the bulk fields carrying SO(5) quantum numbers, which can be interpreted as spin-0 and spin-1 bound states in the dual field theory. This work supplements an earlier publication, focused only on the SO(5) singlet states. We explore the parameter space of the theory, paying particular attention to composite states that have the right quantum numbers to be identified as pseudo-Nambu-Goldstone Bosons (PNGBs).We find that in this model the PNGBs are generally heavy, with masses of the same order as other bound states, indicating the presence of a sizeable amount of explicit symmetry breaking in the field theory side. But we also find a qualitatively new, unexpected result. When the dimension of the field-theory operator inducing SO(5) breaking is close to half of the space-time dimensionality, there exists a region of parameter space in which the PNGBs and the lightest scalar are both parametrically light in comparison to all other bound states of the field theory. Although this region is known to yield metastable classical backgrounds, this finding might be relevant to model building in the composite Higgs context. |
published_date |
0001-01-01T13:55:10Z |
_version_ |
1771128866404827136 |
score |
11.029921 |