TASI lectures on Future Colliders

Mangano, M.

doi:10.22323/1.333.0008

Cited by 2 publications

(1 citation statement)

References 90 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The choice for the future collider after the LHC is a delicate balance between physics return, technological challenges and feasibility, time scales for completion and exploitation as well as financial and political realities [6]. Each option has its pros and cons: (1) Hadron colliders have a (direct) larger mass reach but suffers from a signal-over-background ratio of order 10 −10 that can be raised to 10 −2 ÷ 10 −1 after carefully triggering on specific characteristics of the expected signal events (thus leaving little room for discovery by serendipity).…”

Section: Which Machine?mentioning

confidence: 99%

FCC-ee: physics motivations

Grojean

2022

Eur. Phys. J. Plus

View full text Add to dashboard Cite

show abstract

Section: Which Machine?mentioning

confidence: 99%

FCC-ee: physics motivations

Grojean

2022

Eur. Phys. J. Plus

View full text Add to dashboard Cite

show abstract

Vetoing all the Higgs imposters in $$H\rightarrow \ell ^-\ell ^+ Z$$

Choi,

Jeong,

Kang

2024

Eur. Phys. J. C

View full text Add to dashboard Cite

We develop an effective and methodical algorithm for the construction of general covariant four-point $$H\ell \ell Z$$ H ℓ ℓ Z vertices, accommodating leptons $$\ell =e, \mu $$ ℓ = e , μ , and designed to handle a boson H of any integer spin, not merely confined to spins up to 2. While our numerical analysis assumes the H-boson mass to be $$m_H=125\,\textrm{GeV}$$ m H = 125 GeV , the analytical framework we propose is versatile, enabling the examination of various mass as well as spin scenarios. These meticulously devised general covariant four-point $$H\ell \ell Z$$ H ℓ ℓ Z vertices are pivotal in vetoing all the imposters of the Standard Model Higgs boson holding the spin-0 and even-parity quantum numbers, especially in one of its primary decay channels, the three-body decay process $$H\rightarrow \ell ^-\ell ^+ Z$$ H → ℓ - ℓ + Z , observable at the Large Hadron Collider. Our innovative strategy encompasses the analysis of all the effectively allowed scenarios, extending beyond the limitations of previous investigations on the Higgs spin and parity determinations in the decay $$H \rightarrow \ell ^-\ell ^+ Z$$ H → ℓ - ℓ + Z . Based on the significantly expanded scheme, we demonstrate that the Higgs boson imposter of any spin and parity can be definitively vetoed by leveraging angular and invariant mass distributions focusing on threshold effects. Even though achieving such conclusive results in practical and exhaustive analyses may necessitate high event rates, especially in the spin-0 contact-interaction case.

show abstract

TASI lectures on Future Colliders

Cited by 2 publications

References 90 publications

FCC-ee: physics motivations

FCC-ee: physics motivations

Vetoing all the Higgs imposters in $$H\rightarrow \ell ^-\ell ^+ Z$$

Contact Info

Product

Resources

About