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Explanation of the ...
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Belyaev, A.Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England.;Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England.
(författare)
Explanation of the hints for a 95 GeV Higgs boson within a 2-Higgs Doublet Model
- Artikel/kapitelEngelska2024
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Springer,2024
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LIBRIS-ID:oai:DiVA.org:uu-532263
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-532263URI
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https://doi.org/10.1007/JHEP05(2024)209DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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We suggest an explanation for and explore the consequences of the excess around 95 GeV in the di-photon and di-tau invariant mass distributions recently reported by the CMS collaboration at the Large Hadron Collider (LHC), together with the discrepancy that has long been observed at the Large Electron-Positron (LEP) collider in the b¯¯b invariant mass. Interestingly, the most recent findings announced by the ATLAS collaboration do not contradict, or even support, these intriguing observations. Their search in the di-photon final state similarly reveals an excess of events within the same mass range, albeit with a bit lower significance, thereby corroborating and somewhat reinforcing the observations made by CMS.We demonstrate that the lightest CP-even Higgs boson in the general 2-Higgs Doublet Model (2HDM) Type-III can explain simultaneously the observed excesses at approximately 1.3 σ C.L. while satisfying up-to-date theoretical and experimental constraints. Moreover, the 2HDM Type-III predicts an excess in the pp→t¯tHSM production channel of the 125 GeV Higgs boson, HSM. This effect is caused by a up to 12% enhancement of the HSMtt Yukawa coupling in comparison to that predicted by the Standard Model. Such an effect can be tested at the High Luminosity LHC (HL-LHC), which can either discover or exclude the scenario we suggest. This unique characteristic of the 2HDM Type-III makes this scenario with the 95 GeV resonance very attractive for further theoretical and experimental investigations at the (HL-)LHC and future colliders.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Benbrik, R.Cadi Ayyad Univ, Polydisciplinary Fac, Lab Fundamental & Appl Phys, BP 4162, Sidi Bouzid, Safi, Morocco.
(författare)
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Boukidi, M.Cadi Ayyad Univ, Polydisciplinary Fac, Lab Fundamental & Appl Phys, BP 4162, Sidi Bouzid, Safi, Morocco.
(författare)
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Chakraborti, M.Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England.
(författare)
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Moretti, StefanoUppsala universitet,Högenergifysik,Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England(Swepub:uu)stemo643
(författare)
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Semlali, S.Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England.;Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England.
(författare)
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Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England.;Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England.Cadi Ayyad Univ, Polydisciplinary Fac, Lab Fundamental & Appl Phys, BP 4162, Sidi Bouzid, Safi, Morocco.
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Journal of High Energy Physics (JHEP): Springer:51126-67081029-8479
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