Large mass hierarchies from strongly-coupled dynamics

Athenodorou, Andreas; Bennett, Ed; Bergner, Georg; Elander, Daniel; Lin, C.-J. David; Lucini, Biagio; Piai, Maurizio

doi:10.1007/JHEP06(2016)114

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Large mass hierarchies from strongly-coupled dynamics

Andreas Athenodorou, Ed Bennett

, Georg Bergner, Daniel Elander, C.-J. David Lin, Biagio Lucini

, Maurizio Piai

Journal of High Energy Physics, Volume: 2016, Issue: 6

Swansea University Authors: Ed Bennett , Biagio Lucini , Maurizio Piai

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DOI (Published version): 10.1007/JHEP06(2016)114

Abstract

Besides the Higgs particle discovered in 2012, with mass 125 GeV, recent LHC data show tentative signals for new resonances in diboson as well as diphoton searches at high center-of-mass energies (2 TeV and 750 GeV, respectively). If these signals are confirmed (or other new resonances are discovere...

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Published in:	Journal of High Energy Physics
ISSN:	1029-8479
Published:	2016
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URI:	https://cronfa.swan.ac.uk/Record/cronfa28315
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first_indexed	2016-05-26T12:30:13Z
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If these signals are confirmed (or other new resonances are discovered at the TeV scale), the large hierarchies between masses of new bosons require a dynamical explanation. Motivated by these tentative signals of new physics, we investigate the theoretical possibility that large hierarchies in the masses of glueballs could arise dynamically in new strongly-coupled gauge theories extending the standard model of particle physics. We study lattice data on non-Abelian gauge theories in the (near-)conformal regime as well as a simple toy model in the context of gauge/gravity dualities. We focus our attention on the ratio $R$ between the mass of the lightest spin-2 and spin-0 resonances, that for technical reasons is a particularly convenient and clean observable to study. For models in which (non-perturbative) large anomalous dimensions arise dynamically, we show indications that this mass ratio can be large, with $R>5$. Moreover, our results suggest that $R$ might be related to universal properties of the IR fixed point. Our findings provide an interesting step towards understanding large mass ratios in the non-perturbative regime of quantum field theories with (near) IR conformal</abstract><type>Journal Article</type><journal>Journal of High Energy Physics</journal><volume>2016</volume><journalNumber>6</journalNumber><publisher/><issnElectronic>1029-8479</issnElectronic><keywords/><publishedDay>31</publishedDay><publishedMonth>5</publishedMonth><publishedYear>2016</publishedYear><publishedDate>2016-05-31</publishedDate><doi>10.1007/JHEP06(2016)114</doi><url>http://inspirehep.net/record/1458959</url><notes>The Author has given a substantial contribution to the design of the project, has written most of Sect. II and provided input for the other Sections, has designed the lattice calculations of Sect. II and has performed the analysis of the data for one of the two cases discussed therein. 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spelling	2020-07-27T12:38:28.6772515 v2 28315 2016-05-25 Large mass hierarchies from strongly-coupled dynamics e1a8e7927d2b093acdc54e74eac95e38 0000-0002-1678-6701 Ed Bennett Ed Bennett true false 7e6fcfe060e07a351090e2a8aba363cf 0000-0001-8974-8266 Biagio Lucini Biagio Lucini true false 3ce295f2c7cc318bac7da18f9989d8c3 0000-0002-2251-0111 Maurizio Piai Maurizio Piai true false 2016-05-25 SMA Besides the Higgs particle discovered in 2012, with mass 125 GeV, recent LHC data show tentative signals for new resonances in diboson as well as diphoton searches at high center-of-mass energies (2 TeV and 750 GeV, respectively). If these signals are confirmed (or other new resonances are discovered at the TeV scale), the large hierarchies between masses of new bosons require a dynamical explanation. Motivated by these tentative signals of new physics, we investigate the theoretical possibility that large hierarchies in the masses of glueballs could arise dynamically in new strongly-coupled gauge theories extending the standard model of particle physics. We study lattice data on non-Abelian gauge theories in the (near-)conformal regime as well as a simple toy model in the context of gauge/gravity dualities. We focus our attention on the ratio $R$ between the mass of the lightest spin-2 and spin-0 resonances, that for technical reasons is a particularly convenient and clean observable to study. For models in which (non-perturbative) large anomalous dimensions arise dynamically, we show indications that this mass ratio can be large, with $R>5$. Moreover, our results suggest that $R$ might be related to universal properties of the IR fixed point. Our findings provide an interesting step towards understanding large mass ratios in the non-perturbative regime of quantum field theories with (near) IR conformal Journal Article Journal of High Energy Physics 2016 6 1029-8479 31 5 2016 2016-05-31 10.1007/JHEP06(2016)114 http://inspirehep.net/record/1458959 The Author has given a substantial contribution to the design of the project, has written most of Sect. II and provided input for the other Sections, has designed the lattice calculations of Sect. II and has performed the analysis of the data for one of the two cases discussed therein. DOI: 10.1007/JHEP06(2016)114. COLLEGE NANME Mathematics COLLEGE CODE SMA Swansea University 2020-07-27T12:38:28.6772515 2016-05-25T18:41:10.0074606 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Andreas Athenodorou 1 Ed Bennett 0000-0002-1678-6701 2 Georg Bergner 3 Daniel Elander 4 C.-J. David Lin 5 Biagio Lucini 0000-0001-8974-8266 6 Maurizio Piai 0000-0002-2251-0111 7 0028315-727201641454PM.pdf LuciniJHEP.pdf 2016-07-27T16:14:54.1770000 Output 1571289 application/pdf Version of Record true 2016-07-27T00:00:00.0000000 This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. true
title	Large mass hierarchies from strongly-coupled dynamics
spellingShingle	Large mass hierarchies from strongly-coupled dynamics Ed Bennett Biagio Lucini Maurizio Piai
title_short	Large mass hierarchies from strongly-coupled dynamics
title_full	Large mass hierarchies from strongly-coupled dynamics
title_fullStr	Large mass hierarchies from strongly-coupled dynamics
title_full_unstemmed	Large mass hierarchies from strongly-coupled dynamics
title_sort	Large mass hierarchies from strongly-coupled dynamics
author_id_str_mv	e1a8e7927d2b093acdc54e74eac95e38 7e6fcfe060e07a351090e2a8aba363cf 3ce295f2c7cc318bac7da18f9989d8c3
author_id_fullname_str_mv	e1a8e7927d2b093acdc54e74eac95e38_*_Ed Bennett 7e6fcfe060e07a351090e2a8aba363cf__Biagio Lucini 3ce295f2c7cc318bac7da18f9989d8c3_**_Maurizio Piai
author	Ed Bennett Biagio Lucini Maurizio Piai
author2	Andreas Athenodorou Ed Bennett Georg Bergner Daniel Elander C.-J. David Lin Biagio Lucini Maurizio Piai
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container_title	Journal of High Energy Physics
container_volume	2016
container_issue	6
publishDate	2016
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doi_str_mv	10.1007/JHEP06(2016)114
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description	Besides the Higgs particle discovered in 2012, with mass 125 GeV, recent LHC data show tentative signals for new resonances in diboson as well as diphoton searches at high center-of-mass energies (2 TeV and 750 GeV, respectively). If these signals are confirmed (or other new resonances are discovered at the TeV scale), the large hierarchies between masses of new bosons require a dynamical explanation. Motivated by these tentative signals of new physics, we investigate the theoretical possibility that large hierarchies in the masses of glueballs could arise dynamically in new strongly-coupled gauge theories extending the standard model of particle physics. We study lattice data on non-Abelian gauge theories in the (near-)conformal regime as well as a simple toy model in the context of gauge/gravity dualities. We focus our attention on the ratio $R$ between the mass of the lightest spin-2 and spin-0 resonances, that for technical reasons is a particularly convenient and clean observable to study. For models in which (non-perturbative) large anomalous dimensions arise dynamically, we show indications that this mass ratio can be large, with $R>5$. Moreover, our results suggest that $R$ might be related to universal properties of the IR fixed point. Our findings provide an interesting step towards understanding large mass ratios in the non-perturbative regime of quantum field theories with (near) IR conformal
published_date	2016-05-31T03:34:27Z
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score	11.013148

Large mass hierarchies from strongly-coupled dynamics

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