Full one-loop electroweak corrections to e + e − → ZHγ at a Higgs factory

Liu, Ning; Ren, Jie; Wu, Lei; Wu, Peiwen; Yang, Jin Min

doi:10.1007/jhep04(2014)189

Cited by 15 publications

(9 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We keep the electron mass and checked that all the UV divergences in the one-loop processes e + e → hZ and e + e → hγ are canceled. The infrared (IR) divergences can appear in the virtual correction of e + e − → hZ, which is removed with the two cutoff phase space slicing method [73] used in our previous works [74][75][76]. To show the impact of the CP-violating top-Higgs couplings, we define the signal strength µ as,…”

Section: Collider Implicationsmentioning

confidence: 99%

Implications of CP -violating top-Higgs couplings at the LHC and Higgs factories

Kobakhidze¹,

Liu²,

Wu³

et al. 2017

Phys. Rev. D

Self Cite

View full text Add to dashboard Cite

We utilise the LHC Run-1 and -2 Higgs data to constrain the CP-violating top-Higgs couplings.In order to satisfy the current full Higgs data sets at 2σ level, the CP-odd component C With the new bound, we explore the impact on the CP-violating top-Higgs couplings in the Higgs production processes pp → tth, thj, hh at 13 TeV LHC, and e + e − → hZ, hγ at future 240 GeV Higgs factories. We find that the cross sections of pp → tth, pp → thj, pp → hh, e + e − → hZ and e + e − → hγ can be enhanced up to 1.41, 1.18, 2.20, 1.001 and 1.09 times as large as the SM predictions, respectively. The future precision measurement of the process e + e − → hγ with an accuracy of 5% will be able to constrain |C p t | < 0.19 at most at a 240 GeV e + e − Higgs factory.

show abstract

Section: Collider Implicationsmentioning

confidence: 99%

Implications of CP -violating top-Higgs couplings at the LHC and Higgs factories

Kobakhidze¹,

Liu²,

Wu³

et al. 2017

Phys. Rev. D

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the SM, the radiative corrections to the Higgs-strahlung production process e + e − → Zh come from the Z boson self-energy, the vertex corrections to Ze + e − , he + e − , ZZh and Zγh interactions, and also box contributions [73,74]. The full calculation of these corrections is quite complex (e.g.…”

Section: Calculations and Numerical Resultsmentioning

confidence: 99%

Higgs-strahlung production process e + e − → Zh at the future Higgs factory in the Minimal Dilaton Model

Cao

Heng

et al. 2014

J. High Energ. Phys.

Self Cite

View full text Add to dashboard Cite

Abstract:We investigate the Higgs-strahlung production process e + e − → Zh at the future Higgs factory such as TLEP by including radiative corrections in the Minimal Dilaton Model (MDM), which extends the SM by one singlet scalar called dilaton. We consider various theoretical and experimental constraints on the model, and perform fits to the Higgs data taken from ATLAS, CMS and CDF+D0. Then for the 1σ surviving samples, we calculate the MDM predictions on the inclusive production rate σ(e + e − → Zh) at the 240-GeV Higgs factory, and also the signal rates of e + e − → Zh with the Higgs boson decaying to bb and γγ. We have following observations: (1) In the heavy dilaton scenario, the deviation of σ(e + e − → Zh) from its SM prediction can vary from −15% to 85%, which mainly arises from the modification of the tree-level hZZ coupling and also the radiative correction induced by possibly large Higgs self-couplings. (2) The processes e + e − → Zh at the Higgs factory and pp → hh at 14-TeV LHC are complementary in limiting the MDM parameter space. Requiring the deviation of σ(e + e − → Zh) from its SM prediction to be less than 1% and that of σ(pp → hh) to be less than 50%, tan θ S in the MDM will be limited to be −0.1 < tan θ S < 0.3, and the deviations of the signal rates are constrained to be |R bb | < 2% and |R γγ | < 7%. Especially, the Higgs self-coupling normalized to its SM prediction is now upper bounded by about 4. (3) In the light dilaton scenario, the deviation of σ(e + e − → Zh) may reach −7%, and requiring its size to be less than 1% will result in 0 < tan θ S < 0.1, and −10% < R bb , R γγ < 1%.

show abstract

“…So, the process pp → tthh opens a new avenue to measure di-Higgs physics at HL-LHC and a future 100 TeV pp-collider. On the other hand, given the limited precision of the LHC, an e + e − collider is crucial to scrutinize the detailed properties of the Higgs boson that might uncover the new physics beyond the SM [86][87][88][89][90][91][92][93][94][95][96]. In e + e − collision, the double Higgs strahlung e + e − → Zhh is considered as the main production process to measure the Higgs self-coupling.…”

Section: Jhep09(2015)008mentioning

confidence: 99%

Enhancing t t ¯ h h $$ t\overline{t}hh $$ production through CP-violating top-Higgs interaction at the LHC and future colliders

Liu

Zhang

Han

et al. 2015

J. High Energ. Phys.

Self Cite

View full text Add to dashboard Cite

The measurement of Higgs self-coupling is one of the most crucial physics goals at the future colliders. At the LHC, the di-Higgs production is a main way to measure the Higgs trilinear coupling. As a complementary to the di-Higgs production, tthh process may open a new avenue to measure di-Higgs physics at the LHC and a future 100 TeV pp collider or a high energy e + e − collider since the extra tt in the final states may efficiently suppress the backgrounds. However, such a kind of process is also controlled by the topHiggs coupling. In this work, we investigate the impact of CP-violating top-Higgs coupling on tthh production at the LHC, e + e − and a 100 TeV hadron collider under the current Higgs data. Within 2σ Higgs data allowed parameter region, we find that the cross section of tthh at the LHC-14 TeV, e + e − -1 TeV and VHE-LHC/SPPC-100 TeV can be enhanced up to 2.1 times the SM predictions. The future precise measurement of Higgs coupling will reveal the nature of top-Higgs interaction and improve the sensitivity of the determination of Higgs self-coupling through tthh production.

show abstract

Full one-loop electroweak corrections to e + e − → ZHγ at a Higgs factory

Cited by 15 publications

References 64 publications

Implications of CP -violating top-Higgs couplings at the LHC and Higgs factories

Implications of CP -violating top-Higgs couplings at the LHC and Higgs factories

Higgs-strahlung production process e + e − → Zh at the future Higgs factory in the Minimal Dilaton Model

Enhancing t t ¯ h h $$ t\overline{t}hh $$ production through CP-violating top-Higgs interaction at the LHC and future colliders

Contact Info

Product

Resources

About