Properties of a Higgs boson at 95 GeV at LHC

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dc.audiencegeneralPublic
dc.contributorHernández Juárez, Alan Ignacio
dc.contributorFernández Téllez, Arturo
dc.contributor.advisorHernández Juárez, Alan Ignacio; 0000-0003-0108-7358
dc.contributor.advisorFernández Téllez, Arturo; 0000-0003-0152-4220
dc.contributor.authorVergara Eslava, Oswaldo Alan
dc.date.accessioned2026-04-17T19:56:00Z
dc.date.available2026-04-17T19:56:00Z
dc.date.issued2025-10
dc.description.abstract"After the discovery of the 125 GeV Higgs boson, several small but persistent excesses near 95 GeV in γγ, τ +τ − and ¯bb final states reported by CMS, ATLAS and LEP have revived the search for an additional scalar. Motivated by these anomalies, we study a hypothetical Higgs-like state ϕ at mϕ = 95.4 GeV produced via gluon fusion at the LHC. Using an effective Lagrangian, analytic decay-width formulae are obtained for ϕ → γγ, τ +τ − and ¯bb, introducing CP-even/odd form factors h1, h3 and scalar/pseudoscalar couplings gs, gp. Three production benchmarks (κ = 1, 1 2 , 2) simulate potential variations in the gluon–fusion cross-section. A parameter scan, constrained by the measured signal strengths µγγ, µττ , and µbb, delineates closed annular regions of allowable values for h1, h2 in the ϕ → γγ decay, and gs, gp in the ϕ → τ +τ −, ¯bb decays".
dc.folio20251021102939-0603-TL
dc.formatpdf
dc.identificator1
dc.identifier.urihttps://hdl.handle.net/20.500.12371/32021
dc.language.isoeng
dc.matricula.creator202061341
dc.publisherBenemérita Universidad Autónoma de Puebla
dc.rights.accesopenAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subject.classificationCIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA
dc.subject.lccFísica--Física nuclear y de partículas--Física de partículas elementales--Partículas nucleares y subnucleares especiales, antipartículas y familias de partículas--Bosones
dc.subject.lccBosones de Higgs--Investigación
dc.subject.lccPartículas (Física nuclear)--Decaimiento
dc.thesis.careerLicenciatura en Física
dc.thesis.degreedisciplineÁrea de Ingeniería y Ciencias Exactas
dc.thesis.degreegrantorFacultad de Ciencias Físico Matemáticas
dc.thesis.degreetoobtainLicenciado (a) en Física
dc.titleProperties of a Higgs boson at 95 GeV at LHC
dc.typeTesis de licenciatura
dc.type.conacytbachelorThesis
dc.type.degreeLicenciatura
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