No Cover Image

Journal article 252 views 26 downloads

Chimera baryons and mesons on the lattice: A spectral density analysis

Ed Bennett Orcid Logo, Luigi Del Debbio Orcid Logo, Niccolo Forzano, Ryan C. Hill Orcid Logo, Deog Ki Hong Orcid Logo, Ho Hsiao Orcid Logo, Jong-Wan Lee Orcid Logo, C.-J. David Lin Orcid Logo, Biagio Lucini Orcid Logo, Alessandro Lupo Orcid Logo, Maurizio Piai Orcid Logo, Davide Vadacchino Orcid Logo, Fabian Zierler, (TELOS Collaboration)

Physical Review D, Volume: 112, Issue: 7

Swansea University Authors: Ed Bennett Orcid Logo, Niccolo Forzano, Biagio Lucini Orcid Logo, Maurizio Piai Orcid Logo, Fabian Zierler

  • 70654.VoR.pdf

    PDF | Version of Record

    Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.

    Download (1.37MB)

Check full text

DOI (Published version): 10.1103/qkqx-xxb2

Abstract

We develop and test a spectral-density analysis method, based on the introduction of smeared energy kernels, to extract physical information from two-point correlation functions computed numerically in lattice field theory. We apply it to a Sp(4) gauge theory with fermion matter fields transforming...

Full description

Published in: Physical Review D
ISSN: 2470-0010 2470-0029
Published: American Physical Society (APS) 2025
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa70654
first_indexed 2025-10-14T06:59:05Z
last_indexed 2025-12-13T05:30:08Z
id cronfa70654
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><datestamp>2025-12-12T11:01:29.4142035</datestamp><bib-version>v2</bib-version><id>70654</id><entry>2025-10-14</entry><title>Chimera baryons and mesons on the lattice: A spectral density analysis</title><swanseaauthors><author><sid>e1a8e7927d2b093acdc54e74eac95e38</sid><ORCID>0000-0002-1678-6701</ORCID><firstname>Ed</firstname><surname>Bennett</surname><name>Ed Bennett</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>e70547f67d618e84e6fa9a6765ddd92b</sid><firstname>Niccolo</firstname><surname>Forzano</surname><name>Niccolo Forzano</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>7e6fcfe060e07a351090e2a8aba363cf</sid><ORCID>0000-0001-8974-8266</ORCID><firstname>Biagio</firstname><surname>Lucini</surname><name>Biagio Lucini</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><author><sid>7eb526fdce1693fc0b79f33e74cc182d</sid><firstname>Fabian</firstname><surname>Zierler</surname><name>Fabian Zierler</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2025-10-14</date><deptcode>MACS</deptcode><abstract>We develop and test a spectral-density analysis method, based on the introduction of smeared energy kernels, to extract physical information from two-point correlation functions computed numerically in lattice field theory. We apply it to a Sp(4) gauge theory with fermion matter fields transforming in distinct representations, with Nf = 2 Dirac fermions in the fundamental and Nas = 3 in the 2-index antisymmetric representation. The corresponding continuum theory provides the minimal candidate model for a composite Higgs boson with partial top compositeness. We consider a broad class of composite operators, that source flavored mesons and (chimera) baryons, for sev- eral finite choices of lattice bare parameters. For the chimera baryons, which include candidate top-quark partners, we provide the first measurements, obtained with dynamical fermions, of the ground state and the lowest excited state masses, in all channels of spin, isospin, and parity. We also measure matrix elements and overlap factors, that are important to realize viable models of partial top compositeness, by implementing an innovative way of extracting this information from the spectral densities. For the mesons, among which the pseudoscalars can be reinterpreted to provide an extension of the Higgs sector of the Standard Model of particle physics, our measurements of the renormalized matrix elements and decay constants are new results. We complement them with an update of existing measurements of the meson masses, obtained with higher statistics and improved analysis. The analysis software is made publicly available, and can be used in other lattice studies, including application to quantum chromodynamics (QCD).</abstract><type>Journal Article</type><journal>Physical Review D</journal><volume>112</volume><journalNumber>7</journalNumber><paginationStart/><paginationEnd/><publisher>American Physical Society (APS)</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>2470-0010</issnPrint><issnElectronic>2470-0029</issnElectronic><keywords/><publishedDay>30</publishedDay><publishedMonth>10</publishedMonth><publishedYear>2025</publishedYear><publishedDate>2025-10-30</publishedDate><doi>10.1103/qkqx-xxb2</doi><url/><notes/><college>COLLEGE NANME</college><department>Mathematics and Computer Science School</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>MACS</DepartmentCode><institution>Swansea University</institution><apcterm>Other</apcterm><funders>Funded by SCOAP3.</funders><projectreference/><lastEdited>2025-12-12T11:01:29.4142035</lastEdited><Created>2025-10-14T07:47:01.6782427</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>Ed</firstname><surname>Bennett</surname><orcid>0000-0002-1678-6701</orcid><order>1</order></author><author><firstname>Luigi Del</firstname><surname>Debbio</surname><orcid>0000-0003-4246-3305</orcid><order>2</order></author><author><firstname>Niccolo</firstname><surname>Forzano</surname><order>3</order></author><author><firstname>Ryan C.</firstname><surname>Hill</surname><orcid>0000-0003-2383-940x</orcid><order>4</order></author><author><firstname>Deog Ki</firstname><surname>Hong</surname><orcid>0000-0002-3923-4184</orcid><order>5</order></author><author><firstname>Ho</firstname><surname>Hsiao</surname><orcid>0000-0002-8522-5190</orcid><order>6</order></author><author><firstname>Jong-Wan</firstname><surname>Lee</surname><orcid>0000-0002-4616-2422</orcid><order>7</order></author><author><firstname>C.-J. David</firstname><surname>Lin</surname><orcid>0000-0003-3743-0840</orcid><order>8</order></author><author><firstname>Biagio</firstname><surname>Lucini</surname><orcid>0000-0001-8974-8266</orcid><order>9</order></author><author><firstname>Alessandro</firstname><surname>Lupo</surname><orcid>0000-0001-9661-7811</orcid><order>10</order></author><author><firstname>Maurizio</firstname><surname>Piai</surname><orcid>0000-0002-2251-0111</orcid><order>11</order></author><author><firstname>Davide</firstname><surname>Vadacchino</surname><orcid>0000-0002-5783-5602</orcid><order>12</order></author><author><firstname>Fabian</firstname><surname>Zierler</surname><order>13</order></author><author><firstname>(TELOS</firstname><surname>Collaboration)</surname><order>14</order></author></authors><documents><document><filename>70654__35803__34e04f5e9ff240648bdd7fb6c30feb69.pdf</filename><originalFilename>70654.VoR.pdf</originalFilename><uploaded>2025-12-12T10:58:45.9459827</uploaded><type>Output</type><contentLength>1431859</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.</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>https://creativecommons.org/licenses/by/4.0/</licence></document></documents><OutputDurs><OutputDur><Id>336</Id><DataControllerName>Ed Bennett</DataControllerName><DataControllerOrcid>0000-0002-1678-6701</DataControllerOrcid><DataControllerEmail>E.J.Bennett@Swansea.ac.uk</DataControllerEmail><IsDataAvailableOnline>true</IsDataAvailableOnline><DataNotAvailableOnlineReasonId xsi:nil="true"/><DurUrl>https://zenodo.org/records/15804889</DurUrl><IsDurRestrictions>false</IsDurRestrictions><DurRestrictionReasonId xsi:nil="true"/><DurEmbargoDate xsi:nil="true"/></OutputDur><OutputDur><Id>337</Id><DataControllerName>Ed Bennett</DataControllerName><DataControllerOrcid>0000-0002-1678-6701</DataControllerOrcid><DataControllerEmail>E.J.Bennett@Swansea.ac.uk</DataControllerEmail><IsDataAvailableOnline>true</IsDataAvailableOnline><DataNotAvailableOnlineReasonId xsi:nil="true"/><DurUrl>https://zenodo.org/records/15804848</DurUrl><IsDurRestrictions>false</IsDurRestrictions><DurRestrictionReasonId xsi:nil="true"/><DurEmbargoDate xsi:nil="true"/></OutputDur></OutputDurs></rfc1807>
spelling 2025-12-12T11:01:29.4142035 v2 70654 2025-10-14 Chimera baryons and mesons on the lattice: A spectral density analysis e1a8e7927d2b093acdc54e74eac95e38 0000-0002-1678-6701 Ed Bennett Ed Bennett true false e70547f67d618e84e6fa9a6765ddd92b Niccolo Forzano Niccolo Forzano true false 7e6fcfe060e07a351090e2a8aba363cf 0000-0001-8974-8266 Biagio Lucini Biagio Lucini true false 3ce295f2c7cc318bac7da18f9989d8c3 0000-0002-2251-0111 Maurizio Piai Maurizio Piai true false 7eb526fdce1693fc0b79f33e74cc182d Fabian Zierler Fabian Zierler true false 2025-10-14 MACS We develop and test a spectral-density analysis method, based on the introduction of smeared energy kernels, to extract physical information from two-point correlation functions computed numerically in lattice field theory. We apply it to a Sp(4) gauge theory with fermion matter fields transforming in distinct representations, with Nf = 2 Dirac fermions in the fundamental and Nas = 3 in the 2-index antisymmetric representation. The corresponding continuum theory provides the minimal candidate model for a composite Higgs boson with partial top compositeness. We consider a broad class of composite operators, that source flavored mesons and (chimera) baryons, for sev- eral finite choices of lattice bare parameters. For the chimera baryons, which include candidate top-quark partners, we provide the first measurements, obtained with dynamical fermions, of the ground state and the lowest excited state masses, in all channels of spin, isospin, and parity. We also measure matrix elements and overlap factors, that are important to realize viable models of partial top compositeness, by implementing an innovative way of extracting this information from the spectral densities. For the mesons, among which the pseudoscalars can be reinterpreted to provide an extension of the Higgs sector of the Standard Model of particle physics, our measurements of the renormalized matrix elements and decay constants are new results. We complement them with an update of existing measurements of the meson masses, obtained with higher statistics and improved analysis. The analysis software is made publicly available, and can be used in other lattice studies, including application to quantum chromodynamics (QCD). Journal Article Physical Review D 112 7 American Physical Society (APS) 2470-0010 2470-0029 30 10 2025 2025-10-30 10.1103/qkqx-xxb2 COLLEGE NANME Mathematics and Computer Science School COLLEGE CODE MACS Swansea University Other Funded by SCOAP3. 2025-12-12T11:01:29.4142035 2025-10-14T07:47:01.6782427 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Ed Bennett 0000-0002-1678-6701 1 Luigi Del Debbio 0000-0003-4246-3305 2 Niccolo Forzano 3 Ryan C. Hill 0000-0003-2383-940x 4 Deog Ki Hong 0000-0002-3923-4184 5 Ho Hsiao 0000-0002-8522-5190 6 Jong-Wan Lee 0000-0002-4616-2422 7 C.-J. David Lin 0000-0003-3743-0840 8 Biagio Lucini 0000-0001-8974-8266 9 Alessandro Lupo 0000-0001-9661-7811 10 Maurizio Piai 0000-0002-2251-0111 11 Davide Vadacchino 0000-0002-5783-5602 12 Fabian Zierler 13 (TELOS Collaboration) 14 70654__35803__34e04f5e9ff240648bdd7fb6c30feb69.pdf 70654.VoR.pdf 2025-12-12T10:58:45.9459827 Output 1431859 application/pdf Version of Record true Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. true eng https://creativecommons.org/licenses/by/4.0/ 336 Ed Bennett 0000-0002-1678-6701 E.J.Bennett@Swansea.ac.uk true https://zenodo.org/records/15804889 false 337 Ed Bennett 0000-0002-1678-6701 E.J.Bennett@Swansea.ac.uk true https://zenodo.org/records/15804848 false
title Chimera baryons and mesons on the lattice: A spectral density analysis
spellingShingle Chimera baryons and mesons on the lattice: A spectral density analysis
Ed Bennett
Niccolo Forzano
Biagio Lucini
Maurizio Piai
Fabian Zierler
title_short Chimera baryons and mesons on the lattice: A spectral density analysis
title_full Chimera baryons and mesons on the lattice: A spectral density analysis
title_fullStr Chimera baryons and mesons on the lattice: A spectral density analysis
title_full_unstemmed Chimera baryons and mesons on the lattice: A spectral density analysis
title_sort Chimera baryons and mesons on the lattice: A spectral density analysis
author_id_str_mv e1a8e7927d2b093acdc54e74eac95e38
e70547f67d618e84e6fa9a6765ddd92b
7e6fcfe060e07a351090e2a8aba363cf
3ce295f2c7cc318bac7da18f9989d8c3
7eb526fdce1693fc0b79f33e74cc182d
author_id_fullname_str_mv e1a8e7927d2b093acdc54e74eac95e38_***_Ed Bennett
e70547f67d618e84e6fa9a6765ddd92b_***_Niccolo Forzano
7e6fcfe060e07a351090e2a8aba363cf_***_Biagio Lucini
3ce295f2c7cc318bac7da18f9989d8c3_***_Maurizio Piai
7eb526fdce1693fc0b79f33e74cc182d_***_Fabian Zierler
author Ed Bennett
Niccolo Forzano
Biagio Lucini
Maurizio Piai
Fabian Zierler
author2 Ed Bennett
Luigi Del Debbio
Niccolo Forzano
Ryan C. Hill
Deog Ki Hong
Ho Hsiao
Jong-Wan Lee
C.-J. David Lin
Biagio Lucini
Alessandro Lupo
Maurizio Piai
Davide Vadacchino
Fabian Zierler
(TELOS Collaboration)
format Journal article
container_title Physical Review D
container_volume 112
container_issue 7
publishDate 2025
institution Swansea University
issn 2470-0010
2470-0029
doi_str_mv 10.1103/qkqx-xxb2
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
document_store_str 1
active_str 0
description We develop and test a spectral-density analysis method, based on the introduction of smeared energy kernels, to extract physical information from two-point correlation functions computed numerically in lattice field theory. We apply it to a Sp(4) gauge theory with fermion matter fields transforming in distinct representations, with Nf = 2 Dirac fermions in the fundamental and Nas = 3 in the 2-index antisymmetric representation. The corresponding continuum theory provides the minimal candidate model for a composite Higgs boson with partial top compositeness. We consider a broad class of composite operators, that source flavored mesons and (chimera) baryons, for sev- eral finite choices of lattice bare parameters. For the chimera baryons, which include candidate top-quark partners, we provide the first measurements, obtained with dynamical fermions, of the ground state and the lowest excited state masses, in all channels of spin, isospin, and parity. We also measure matrix elements and overlap factors, that are important to realize viable models of partial top compositeness, by implementing an innovative way of extracting this information from the spectral densities. For the mesons, among which the pseudoscalars can be reinterpreted to provide an extension of the Higgs sector of the Standard Model of particle physics, our measurements of the renormalized matrix elements and decay constants are new results. We complement them with an update of existing measurements of the meson masses, obtained with higher statistics and improved analysis. The analysis software is made publicly available, and can be used in other lattice studies, including application to quantum chromodynamics (QCD).
published_date 2025-10-30T05:33:14Z
_version_ 1856986985931997184
score 11.096027

Similar Items