Scalar excitation with Leggett frequency in 3He-B and the 125 GeV Higgs particle in top quark condensation models as pseudo-Goldstone bosons

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Volovik, Grigory
dc.contributor.author Zubkov, M.A.
dc.date.accessioned 2017-08-03T12:09:16Z
dc.date.available 2017-08-03T12:09:16Z
dc.date.issued 2015
dc.identifier.citation Volovik , G & Zubkov , M A 2015 , ' Scalar excitation with Leggett frequency in 3He-B and the 125 GeV Higgs particle in top quark condensation models as pseudo-Goldstone bosons ' PHYSICAL REVIEW D , vol 92 , no. 5 , 055004 , pp. 1-26 . DOI: 10.1103/PhysRevD.92.055004 en
dc.identifier.issn 1550-7998
dc.identifier.issn 1550-2368
dc.identifier.other PURE UUID: 7c09f416-0539-443f-ab27-8b426b262fcf
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/scalar-excitation-with-leggett-frequency-in-3heb-and-the-125-gev-higgs-particle-in-top-quark-condensation-models-as-pseudogoldstone-bosons(7c09f416-0539-443f-ab27-8b426b262fcf).html
dc.identifier.other PURE LINK: http://dx.doi.org/10.1103/PhysRevD.92.055004
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/14341888/PhysRevD.92.055004.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/27389
dc.description VK: Low Temperature Laboratory
dc.description.abstract We consider the scenario in which the light Higgs scalar boson appears as the pseudo-Goldstone boson. We discuss examples in both condensed matter and relativistic field theory. In 3He−B the symmetry breaking gives rise to four Nambu-Goldstone (NG) modes and 14 Higgs modes. At lower energy one of the four NG modes becomes the Higgs boson with a small mass. This is the mode measured in experiments with the longitudinal NMR, and the Higgs mass corresponds to the Leggett frequency MH=ℏΩB. The formation of the Higgs mass is the result of the violation of the hidden spin-orbit symmetry at low energy. In this scenario the symmetry-breaking energy scale Δ (the gap in the fermionic spectrum) and the Higgs mass scale MH are highly separated: MH≪Δ. On the particle physics side we consider the model inspired by the models of Refs. Cheng et al. [J. High Energy Phys. 08 (014) 095] and Fukano et al. [Phys. Rev. D 90, 055009 (2014)]. At high energies the SU(3) symmetry is assumed which relates the left-handed top and bottomquarks to the additional fermion χL. This symmetry is softly broken at low energies. As a result the only CP-even Goldstone boson acquires a mass and may be considered as a candidate for the 125 GeV scalar boson. We consider a condensation pattern different from that typically used in top-seesaw models, where the condensate ⟨¯tLχR⟩ is off-diagonal. In our case the condensates are mostly diagonal. Unlike the work of Cheng et al. [J. High Energy Phys. 08 (014) 095] and Fukano et al. [Phys. Rev. D 90, 055009 (2014)], the explicit mass terms are absent and the soft breaking of SU(3) symmetry is given solely by the four-fermion terms. This reveals a complete analogy with 3He, where there is no explicit mass term and the spin-orbit interaction has the form of the four-fermion interaction. en
dc.format.extent 1-26
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries PHYSICAL REVIEW D en
dc.relation.ispartofseries Volume 92, issue 5 en
dc.rights openAccess en
dc.subject.other 114 Physical sciences en
dc.subject.other 221 Nanotechnology en
dc.subject.other 214 Mechanical engineering en
dc.subject.other 218 Environmental engineering en
dc.title Scalar excitation with Leggett frequency in 3He-B and the 125 GeV Higgs particle in top quark condensation models as pseudo-Goldstone bosons en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics
dc.contributor.department Institute for Theoretical and Experimental Physics
dc.subject.keyword Higgs amplitude modes
dc.subject.keyword Higgs boson
dc.subject.keyword light Higgs
dc.subject.keyword 114 Physical sciences
dc.subject.keyword 221 Nanotechnology
dc.subject.keyword 214 Mechanical engineering
dc.subject.keyword 218 Environmental engineering
dc.identifier.urn URN:NBN:fi:aalto-201708036357
dc.identifier.doi 10.1103/PhysRevD.92.055004
dc.type.version publishedVersion


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