WFRF:(Belyaev S.)
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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. (author)
Explanation of the hints for a 95 GeV Higgs boson within a 2-Higgs Doublet Model
- Article/chapterEnglish2024
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- Springer,2024
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- LIBRIS-ID:oai:DiVA.org:uu-532263
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-532263URI
- https://doi.org/10.1007/JHEP05(2024)209DOI
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- Language:English
- Summary in:English
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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.
Subject headings and genre
- NATURVETENSKAP Fysik Acceleratorfysik och instrumentering hsv//swe
- NATURAL SCIENCES Physical Sciences Accelerator Physics and Instrumentation hsv//eng
- NATURVETENSKAP Fysik Subatomär fysik hsv//swe
- NATURAL SCIENCES Physical Sciences Subatomic Physics hsv//eng
- Higgs Production
- New Light Particles
Added entries (persons, corporate bodies, meetings, titles ...)
- Benbrik, R.Cadi Ayyad Univ, Polydisciplinary Fac, Lab Fundamental & Appl Phys, BP 4162, Sidi Bouzid, Safi, Morocco. (author)
- Boukidi, M.Cadi Ayyad Univ, Polydisciplinary Fac, Lab Fundamental & Appl Phys, BP 4162, Sidi Bouzid, Safi, Morocco. (author)
- Chakraborti, M.Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England. (author)
- Moretti, StefanoUppsala universitet,Högenergifysik,Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England(Swepub:uu)stemo643 (author)
- Semlali, S.Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England.;Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England. (author)
- 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)
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- In:Journal of High Energy Physics (JHEP): Springer:51126-67081029-8479
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