Precise predictions for charged Higgs boson pair production in photon-photon collisions

Demirci, Mehmet

doi:10.1016/j.nuclphysb.2020.115235

Cited by 13 publications

(9 citation statements)

References 58 publications

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“…Technically, the algebraic evaluation of the Feynman amplitudes has been performed in the same way as described in Ref. [15] for γγ → H − H + . Next, squaring the relevant amplitudes, simplifying the fermion chains, and the numerical computation have been performed with help of FormCalc [31].…”

Section: Theoretical Setup For Cross Sectionmentioning

confidence: 99%

“…Because the number of fermion generations is a free parameter in the SM, each generation provides a subset with gauge-invariant of one-loop diagrams created with fermionic loops. This correction come from diagrams (15) and ( 16) of Fig. 4.…”

Section: Smmentioning

confidence: 99%

“…High energy γγ collisions will play an important role as a comprehensive framework for virtually investigating every aspect of the SM and beyond since photon couples directly to all fundamental fields via electromagnetic current, such as leptons, quarks, W 's, and supersymmetric particles. Some recent study regarding this mode have been done for example on describing µ + µ − resonance [11], quarkonium pairs with QCD correction [12], neutralino pair production [13], and also Higgs production [14][15][16]. The relatively clean environment of this collision, in particular, opens an opportunity for further precision tests of the SM which will complement the ones obtained from future e − e + scattering facilities.…”

Section: Introductionmentioning

confidence: 99%

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One-loop electroweak radiative corrections to charged lepton pair production in photon-photon collisions

Demirci,

Mustamin

2021

Preprint

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We provide high-precision predictions for muon-pair and tau-pair productions in a photon-photon collision by considering a complete set of one-loop-level scattering amplitudes, i.e., electroweak (EW) corrections together with soft and hard QED radiation. Accordingly, we present a detailed numerical discussion with particular emphasis on the pure QED corrections as well as genuinely weak corrections. The effects of angular and initial beam polarisation distributions on production rates are also discussed. An improvement is observed by a factor of two with oppositely polarized photons. Our results indicate that the one-loop EW radiative corrections enhance the Born cross section and the total relative correction is typically about ten percent for both production channels. It appears that the full EW corrections to γγ → ℓ − ℓ + are required to match a percent level accuracy.

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Section: Theoretical Setup For Cross Sectionmentioning

confidence: 99%

Section: Smmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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One-loop electroweak radiative corrections to charged lepton pair production in photon-photon collisions

Demirci,

Mustamin

2021

Preprint

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“…The process of 𝛾𝛾 collisions presents an important framework to improve our understanding of the current Standard Model (SM) theory and beyond. It can be virtually investigated every aspect of the SM and beyond as photon couples directly to all fundamental fields via electromagnetic current, such as leptons, quarks, 𝑊's, and even supersymmetric particles [1].…”

Section: Introductionmentioning

confidence: 99%

The full electroweak $\mathcal{O}(\alpha)$ corrections to $\gamma\gamma\rightarrow \ell^- \ell^+$

Demirci¹,

Mustamin²

2022

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2021)

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We provide high-precision predictions for ℓ − ℓ + production (ℓ = 𝜇, 𝜏) at 𝛾𝛾 collisions by considering a complete set of one-loop order scattering amplitudes, i.e., full electroweak (EW) O (𝛼) corrections together with soft and hard QED radiation. We decompose the one-loop EW radiative corrections into the pure QED and Weak parts. The total corrections enhance the Born cross section within ten percent of total relative correction for both processes. Our results show that the full EW corrections must be included to improve a percent level accuracy.

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“…The importance of the bosonic decay model of the H ± has been identified by several studies. The decay of H ± to W ± and a neutral scalar has been studied for type-II and type-I 2HDM model with H ± tb associated production of charged Higgs [21][22][23][24][25][26][27][28][29] and in linear colliders [30,31]. For type-I or fermiophobic case, the H ± tb coupling is tan β suppressed, and for large tan β, the channel becomes irrelevant.…”

mentioning

confidence: 99%

Same sign trilepton as signature of charged Higgs in two Higgs doublet model

Mondal,

Sanyal

2021

Preprint

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We explored the prospect of looking for a fermiophobic charged Higgs via the same sign trilepton signal at the LHC. Such a fermiophobic scenario appears in type-I two Higgs doublet model where the fermionic couplings of the charged Higgs are inversely proportional to tan β. Almost all the experimental searches rely on the fermionic production and decay of the charged Higgs, and the limit on charge Higgs is non-existent unless tan β is small. We show that for a fermiophobic case, the electroweak production is dominant for most of the parameter space, and the subsequent bosonic decay of the charged and neutral Higgs will give rise to the same sign trilepton signal. By doing a thorough phenomenological analysis, we show that the same sign trilepton can be an excellent complementary search and can explore the large tan β regions.

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Precise predictions for charged Higgs boson pair production in photon-photon collisions

Cited by 13 publications

References 58 publications

One-loop electroweak radiative corrections to charged lepton pair production in photon-photon collisions

One-loop electroweak radiative corrections to charged lepton pair production in photon-photon collisions

The full electroweak $\mathcal{O}(\alpha)$ corrections to $\gamma\gamma\rightarrow \ell^- \ell^+$

Same sign trilepton as signature of charged Higgs in two Higgs doublet model

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