Abstract
In composite Higgs models, the generation of quark masses requires the standard model-like quarks to be partially or fully composite states which are accompanied by composite quark partners. The composite quark partners decay into a standard model-like quark and an electroweak gauge boson or Higgs boson, which can be searched for at the LHC. In this article, we study the phenomenological implications of composite quarks in the minimal composite Higgs model based on the coset SO(5)/SO(4). We focus on light quark partners which are embedded in the SO(4) singlet representation. In this case, a dominant decay mode of the partner quark is into a Higgs boson and a jet, for which no experimental bounds have been established so far. The presence of SO(4) singlet partners leads to an enhancement of the di-Higgs production cross section at the LHC. This will be an interesting experimental signature in the near future, but, unfortunately, there are no direct bounds available yet from the experimental analyses. However, we find that the currently available standard model-like Higgs searches can be used in order to obtain the first constraints on partially and fully composite quark models with light quark partners in the SO(4) singlet. We obtain a flavor- and composition parameter independent bound on the quark partner mass of \( {M_U}_{{_h}} \) > 310 GeV for partially composite quark models and \( {M_U}_{{_h}} \) > 212 GeV for fully composite quark models.
Article PDF
Similar content being viewed by others
Explore related subjects
Find the latest articles, discoveries, and news in related topics.Avoid common mistakes on your manuscript.
References
ATLAS collaboration, Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC, Phys. Lett. B 716 (2012) 1 [arXiv:1207.7214] [INSPIRE].
CMS collaboration, Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC, Phys. Lett. B 716 (2012) 30 [arXiv:1207.7235] [INSPIRE].
G. ’t Hooft, Naturalness, chiral symmetry, and spontaneous chiral symmetry breaking, in Proc. of 1979 Cargèse institute on Recent developments in gauge theories, Plenum Press, New York U.S.A. (1980), pg. 135 [INSPIRE].
K.G. Wilson, The renormalization group and strong interactions, Phys. Rev. D 3 (1971) 1818 [INSPIRE].
E. Gildener, Gauge symmetry hierarchies, Phys. Rev. D 14 (1976) 1667 [INSPIRE].
S. Weinberg, Gauge hierarchies, Phys. Lett. B 82 (1979) 387 [INSPIRE].
D.B. Kaplan and H. Georgi, SU(2) × U(1) breaking by vacuum misalignment, Phys. Lett. B 136 (1984) 183 [INSPIRE].
D.B. Kaplan, H. Georgi and S. Dimopoulos, Composite Higgs scalars, Phys. Lett. B 136 (1984) 187 [INSPIRE].
H. Georgi, D.B. Kaplan and P. Galison, Calculation of the composite Higgs mass, Phys. Lett. B 143 (1984) 152 [INSPIRE].
T. Banks, Constraints on SU(2) × U(1) breaking by vacuum misalignment, Nucl. Phys. B 243 (1984) 125 [INSPIRE].
H. Georgi and D.B. Kaplan, Composite Higgs and custodial SU(2), Phys. Lett. B 145 (1984) 216 [INSPIRE].
M.J. Dugan, H. Georgi and D.B. Kaplan, Anatomy of a composite Higgs model, Nucl. Phys. B 254 (1985) 299 [INSPIRE].
N. Arkani-Hamed, A.G. Cohen, E. Katz and A.E. Nelson, The littlest Higgs, JHEP 07 (2002) 034 [hep-ph/0206021] [INSPIRE].
R. Contino, Y. Nomura and A. Pomarol, Higgs as a holographic pseudo-Goldstone boson, Nucl. Phys. B 671 (2003) 148 [hep-ph/0306259] [INSPIRE].
K. Agashe, R. Contino and A. Pomarol, The minimal composite Higgs model, Nucl. Phys. B 719 (2005) 165 [hep-ph/0412089] [INSPIRE].
O. Matsedonskyi, G. Panico and A. Wulzer, Light top partners for a light composite Higgs, JHEP 01 (2013) 164 [arXiv:1204.6333] [INSPIRE].
M. Redi and A. Tesi, Implications of a light Higgs in composite models, JHEP 10 (2012) 166 [arXiv:1205.0232] [INSPIRE].
D. Marzocca, M. Serone and J. Shu, General composite Higgs models, JHEP 08 (2012) 013 [arXiv:1205.0770] [INSPIRE].
A. Pomarol and F. Riva, The composite Higgs and light resonance connection, JHEP 08 (2012) 135 [arXiv:1205.6434] [INSPIRE].
G. Panico, M. Redi, A. Tesi and A. Wulzer, On the tuning and the mass of the composite Higgs, JHEP 03 (2013) 051 [arXiv:1210.7114] [INSPIRE].
C. Grojean, O. Matsedonskyi and G. Panico, Light top partners and precision physics, JHEP 10 (2013) 160 [arXiv:1306.4655] [INSPIRE].
M. Gillioz, R. Gröber, A. Kapuvari and M. Mühlleitner, Vector-like bottom quarks in composite Higgs models, JHEP 03 (2014) 037 [arXiv:1311.4453] [INSPIRE].
A. De Simone, O. Matsedonskyi, R. Rattazzi and A. Wulzer, A first top partner hunter’s guide, JHEP 04 (2013) 004 [arXiv:1211.5663] [INSPIRE].
M. Buchkremer, G. Cacciapaglia, A. Deandrea and L. Panizzi, Model independent framework for searches of top partners, Nucl. Phys. B 876 (2013) 376 [arXiv:1305.4172] [INSPIRE].
CMS collaboration, Inclusive search for a vector-like T quark by CMS, CMS-PAS-B2G-12-015, CERN, Geneva Switzerland (2012).
N. Vignaroli, Early discovery of top partners and test of the Higgs nature, Phys. Rev. D 86 (2012) 075017 [arXiv:1207.0830] [INSPIRE].
A. Azatov, M. Salvarezza, M. Son and M. Spannowsky, Boosting top partner searches in composite Higgs models, Phys. Rev. D 89 (2014) 075001 [arXiv:1308.6601] [INSPIRE].
N. Vignaroli, Discovering the composite Higgs through the decay of a heavy fermion, JHEP 07 (2012) 158 [arXiv:1204.0468] [INSPIRE].
C. Delaunay et al., Light non-degenerate composite partners at the LHC, JHEP 02 (2014) 055 [arXiv:1311.2072] [INSPIRE].
M. Redi and A. Weiler, Flavor and CP invariant composite Higgs models, JHEP 11 (2011) 108 [arXiv:1106.6357] [INSPIRE].
O. Gedalia, J.F. Kamenik, Z. Ligeti and G. Perez, On the universality of CP-violation in ΔF = 1 processes, Phys. Lett. B 714 (2012) 55 [arXiv:1202.5038] [INSPIRE].
G. Cacciapaglia et al., A GIM mechanism from extra dimensions, JHEP 04 (2008) 006 [arXiv:0709.1714] [INSPIRE].
A.L. Fitzpatrick, G. Perez and L. Randall, Flavor anarchy in a Randall-Sundrum model with 5D minimal flavor violation and a low Kaluza-Klein scale, Phys. Rev. Lett. 100 (2008) 171604 [arXiv:0710.1869] [INSPIRE].
C. Csáki, G. Perez, Z. Surujon and A. Weiler, Flavor alignment via shining in RS, Phys. Rev. D 81 (2010) 075025 [arXiv:0907.0474] [INSPIRE].
C. Delaunay, O. Gedalia, S.J. Lee, G. Perez and E. Ponton, Ultra visible warped model from flavor triviality and improved naturalness, Phys. Rev. D 83 (2011) 115003 [arXiv:1007.0243] [INSPIRE].
K. Agashe, R. Contino, L. Da Rold and A. Pomarol, A custodial symmetry for \( Zb\overline{b} \), Phys. Lett. B 641 (2006) 62 [hep-ph/0605341] [INSPIRE].
R. Contino, L. Da Rold and A. Pomarol, Light custodians in natural composite Higgs models, Phys. Rev. D 75 (2007) 055014 [hep-ph/0612048] [INSPIRE].
A. Pomarol and J. Serra, Top quark compositeness: feasibility and implications, Phys. Rev. D 78 (2008) 074026 [arXiv:0806.3247] [INSPIRE].
D. Pappadopulo, A. Thamm and R. Torre, A minimally tuned composite Higgs model from an extra dimension, JHEP 07 (2013) 058 [arXiv:1303.3062] [INSPIRE].
M. Montull, F. Riva, E. Salvioni and R. Torre, Higgs couplings in composite models, Phys. Rev. D 88 (2013) 095006 [arXiv:1308.0559] [INSPIRE].
A. Azatov and J. Galloway, Light custodians and Higgs physics in composite models, Phys. Rev. D 85 (2012) 055013 [arXiv:1110.5646] [INSPIRE].
S.R. Coleman, J. Wess and B. Zumino, Structure of phenomenological Lagrangians. 1, Phys. Rev. 177 (1969) 2239 [INSPIRE].
C.G. Callan Jr., S.R. Coleman, J. Wess and B. Zumino, Structure of phenomenological Lagrangians. 2, Phys. Rev. 177 (1969) 2247 [INSPIRE].
M. Redi, V. Sanz, M. de Vries and A. Weiler, Strong signatures of right-handed compositeness, JHEP 08 (2013) 008 [arXiv:1305.3818] [INSPIRE].
A. Atre, M. Chala and J. Santiago, Searches for new vector like quarks: Higgs channels, JHEP 05 (2013) 099 [arXiv:1302.0270] [INSPIRE].
C. Delaunay, T. Golling, G. Perez and Y. Soreq, Charming the Higgs, arXiv:1310.7029 [INSPIRE].
J.M. Butterworth, A.R. Davison, M. Rubin and G.P. Salam, Jet substructure as a new Higgs search channel at the LHC, Phys. Rev. Lett. 100 (2008) 242001 [arXiv:0802.2470] [INSPIRE].
L.G. Almeida et al., Substructure of high-p T jets at the LHC, Phys. Rev. D 79 (2009) 074017 [arXiv:0807.0234] [INSPIRE].
L.G. Almeida, S.J. Lee, G. Perez, G. Sterman and I. Sung, Template overlap method for massive jets, Phys. Rev. D 82 (2010) 054034 [arXiv:1006.2035] [INSPIRE].
T. Plehn, G.P. Salam and M. Spannowsky, Fat jets for a light Higgs, Phys. Rev. Lett. 104 (2010) 111801 [arXiv:0910.5472] [INSPIRE].
D.E. Soper and M. Spannowsky, Combining subjet algorithms to enhance ZH detection at the LHC, JHEP 08 (2010) 029 [arXiv:1005.0417] [INSPIRE].
J.-H. Kim, Rest frame subjet algorithm with SISCone jet for fully hadronic decaying Higgs search, Phys. Rev. D 83 (2011) 011502 [arXiv:1011.1493] [INSPIRE].
L.G. Almeida et al., Three-particle templates for a boosted Higgs boson, Phys. Rev. D 85 (2012) 114046 [arXiv:1112.1957] [INSPIRE].
M. Backovic, J. Juknevich and G. Perez, Boosting the Standard Model Higgs signal with the template overlap method, JHEP 07 (2013) 114 [arXiv:1212.2977] [INSPIRE].
ATLAS collaboration, Search for pair production of heavy top-like quarks decaying to a high-p T W boson and a b quark in the lepton plus jets final state at \( \sqrt{s} \) = 7 TeV with the ATLAS detector, Phys. Lett. B 718 (2013) 1284 [arXiv:1210.5468] [INSPIRE].
CMS collaboration, Search for pair-production of second generation leptoquarks in 8 TeV proton-proton collisions, CMS-PAS-EXO-12-042, CERN, Geneva Switzerland (2012).
CMS collaboration, Searches for light- and heavy-flavour three-jet resonances in pp collisions at \( \sqrt{s} \) = 8 TeV, Phys. Lett. B 730 (2014) 193 [arXiv:1311.1799] [INSPIRE].
ATLAS collaboration, Search for pair production of new heavy quarks that decay to a Z boson and a third generation quark in pp collisions at \( \sqrt{s} \) = 8 TeV with the ATLAS detector, ATLAS-CONF-2013-056, CERN, Geneva Switzerland (2013).
CMS collaboration, Search for pair-produced vector-like quarks of charge −1/3 in lepton+jets final state in pp collisions at \( \sqrt{s} \) = 8 TeV, CMS-PAS-B2G-12-019, CERN, Geneva Switzerland (2012).
CMS collaboration, Search for pair-produced vector-like quarks of charge −1/3 in dilepton+jets final state in pp collisions at \( \sqrt{s} \) = 8 TeV, CMS-PAS-B2G-12-021, CERN, Geneva Switzerland (2012).
J.R. Espinosa, C. Grojean, M. Muhlleitner and M. Trott, Fingerprinting Higgs suspects at the LHC, JHEP 05 (2012) 097 [arXiv:1202.3697] [INSPIRE].
D. Carmi, A. Falkowski, E. Kuflik, T. Volansky and J. Zupan, Higgs after the discovery: a status report, JHEP 10 (2012) 196 [arXiv:1207.1718] [INSPIRE].
G. Moreau, Constraining extra-fermion(s) from the Higgs boson data, Phys. Rev. D 87 (2013) 015027 [arXiv:1210.3977] [INSPIRE].
C. Delaunay, C. Grojean and G. Perez, Modified Higgs physics from composite light flavors, JHEP 09 (2013) 090 [arXiv:1303.5701] [INSPIRE].
ATLAS collaboration, Differential cross sections of the Higgs boson measured in the diphoton decay channel using 8 TeV pp collisions, ATLAS-CONF-2013-072, CERN, Geneva Switzerland (2013).
A. Alloul, N.D. Christensen, C. Degrande, C. Duhr and B. Fuks, FeynRules 2.0 — a complete toolbox for tree-level phenomenology, arXiv:1310.1921 [INSPIRE].
C. Degrande et al., UFO — the Universal FeynRules Output, Comput. Phys. Commun. 183 (2012) 1201 [arXiv:1108.2040] [INSPIRE].
N. Christensen, B. Fuks and C. Duhr, The Standard Model Feynrules wiki webpage, http://feynrules.irmp.ucl.ac.be/wiki/StandardModel.
C. Duhr, The Higgs effective theory Feynrules wiki webpage, http://feynrules.irmp.ucl.ac.be/wiki/HiggsEffectiveTheory.
LHC Higgs Cross section Working Group collaboration, S. Heinemeyer et al., Handbook of LHC Higgs cross sections: 3. Higgs properties, arXiv:1307.1347 [INSPIRE].
J. Alwall, M. Herquet, F. Maltoni, O. Mattelaer and T. Stelzer, MadGraph 5: going beyond, JHEP 06 (2011) 128 [arXiv:1106.0522] [INSPIRE].
J. Pumplin et al., New generation of parton distributions with uncertainties from global QCD analysis, JHEP 07 (2002) 012 [hep-ph/0201195] [INSPIRE].
T. Sjöstrand, S. Mrenna and P.Z. Skands, PYTHIA 6.4 physics and manual, JHEP 05 (2006) 026 [hep-ph/0603175] [INSPIRE].
DELPHES 3 collaboration, J. de Favereau et al., DELPHES 3, a modular framework for fast simulation of a generic collider experiment, JHEP 02 (2014) 057 [arXiv:1307.6346] [INSPIRE].
M. Cacciari and G.P. Salam, Dispelling the N 3 myth for the k t jet-finder, Phys. Lett. B 641 (2006) 57 [hep-ph/0512210] [INSPIRE].
M. Cacciari, G.P. Salam and G. Soyez, FastJet user manual, Eur. Phys. J. C 72 (2012) 1896 [arXiv:1111.6097] [INSPIRE].
M. Cacciari, G.P. Salam and G. Soyez, The anti-k t jet clustering algorithm, JHEP 04 (2008) 063 [arXiv:0802.1189] [INSPIRE].
CMS collaboration, 2HDM scenario, H → hh and A → Zh, CMS-PAS-HIG-13-025, CERN, Geneva Switzerland (2013).
Open Access
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.
Author information
Authors and Affiliations
Corresponding author
Additional information
ArXiv ePrint: 1312.5316
Rights and permissions
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
About this article
Cite this article
Flacke, T., Kim, J.H., Lee, S.J. et al. Constraints on composite quark partners from Higgs searches. J. High Energ. Phys. 2014, 123 (2014). https://doi.org/10.1007/JHEP05(2014)123
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP05(2014)123