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Explanation of the ...
Explanation of the hints for a 95 GeV Higgs boson within a 2-Higgs Doublet Model
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- Belyaev, A. (författare)
- Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England.;Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England.
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- Benbrik, R. (författare)
- Cadi Ayyad Univ, Polydisciplinary Fac, Lab Fundamental & Appl Phys, BP 4162, Sidi Bouzid, Safi, Morocco.
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- Boukidi, M. (författare)
- Cadi Ayyad Univ, Polydisciplinary Fac, Lab Fundamental & Appl Phys, BP 4162, Sidi Bouzid, Safi, Morocco.
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- Chakraborti, M. (författare)
- Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England.
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- Moretti, Stefano (författare)
- Uppsala universitet,Högenergifysik,Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England
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- Semlali, S. (författare)
- Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England.;Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England.
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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)
- Springer, 2024
- 2024
- Engelska.
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Ingår i: Journal of High Energy Physics (JHEP). - : Springer. - 1126-6708 .- 1029-8479. ; :5
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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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.
Ämnesord
- 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)
Nyckelord
- Higgs Production
- New Light Particles
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