Phenomenology of a little Higgs pseudoaxion

Cheung, Kingman; He, Shi-Ping; Mao, Y.; Tseng, Po-Yan; Zhang, Chen

doi:10.1103/physrevd.98.075023

Cited by 6 publications

(9 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Besides the VLQs, we can also plus a real gauge singlet scalar [22][23][24], a Higgs doublet [25], and even both the singlet-doublet scalars at the same time [25,26]. In these models, other decay channels can exist [27,28].…”

Section: Framework Of Flavor-changing Neutral Couplingsmentioning

confidence: 99%

See 1 more Smart Citation

Higgs boson to γZ decay as a probe of flavor-changing neutral Yukawa couplings

2020

Phys. Rev. D

Self Cite

View full text Add to dashboard Cite

With the deeper study of Higgs particle, Higgs precision measurements can be served to probe new physics indirectly. In many new physics models, vectorlike quarks T L , T R occur naturally. It is important to probe their couplings with standard model particles. In this work, we consider the singlet T L , T R extended models and show how to constrain the Tth couplings through the h → γZ decay at high-luminosity LHC. First, we derive the perturbative unitarity bounds on jy tT L;R j with other couplings set to be zeros simply. To optimize the situation, we take m T ¼ 400 GeV and s L ¼ 0.2 considering the experimental constraints. Under this benchmark point, we find that the future bounds from h → γZ decay can limit the real parts of y tT L;R in the positive direction to be O(1) because of the double enhancement. For the real parts of y tT L;R in the negative direction, it is always surpassed by the perturbative unitarity. Moreover, we find that the top quark electric dipole moment can give stronger bounds (especially the imaginary parts of y tT L;R) than the perturbative unitarity and h → γZ decay in the off-axis regions for some scenarios.

show abstract

Section: Framework Of Flavor-changing Neutral Couplingsmentioning

confidence: 99%

“…For example, we can also introduce a real gauge singlet scalar [14,15], a Higgs doublet [16], and even both the singlet-doublet scalars at the same time [16,17]. In these models, the T quark can exist other decay channels [18,19]. Here, we will adopt a general framework [20].…”

Section: Ii2 Simplified Modelmentioning

confidence: 99%

Higgs boson to γZ decay as a probe of flavor-changing neutral Yukawa couplings

2020

Phys. Rev. D

Self Cite

View full text Add to dashboard Cite

show abstract

“…The prompt J/ψ p T -differential cross section (Fig. 2 left) is compared with ICEM [2] and several NRQCD based models (see corresonding Refs. in [12]).…”

Section: Resultsmentioning

confidence: 99%

“…Results in pp collisions are also crucial for studying perturbative and non-perturbative quantum chromodynamics (QCD) aspects in vacuum [1]. Notably, pp collisions allow constraining theoretical models describing charmonium production, including the non-prompt contribution, originating from beauty hadron decays [1][2][3]. In addition, measurements of multiplicity-dependent quarkonium production shed light on multiple parton-parton interactions (MPI).…”

Section: Introductionmentioning

confidence: 99%

Quarkonium production and elliptic flow in small systems measured with ALICE

Finot¹

2023

EPJ Web Conf.

View full text Add to dashboard Cite

Abstract. Quarkonium production in hadronic collisions provides a unique testing ground for understanding quantum chromodynamics (QCD) since it involves both perturbative and non-perturbative regimes of this theory. A variety of experimental observables, such as the production cross-section, polarization, particle correlations, serve as insights into the phenomenology of the quarkonium production and help constrain the theoretical models. Measurements of quarkonia as a function of multiplicity probe multiple parton interactions (MPI), i.e., several parton-parton interactions occurring in a single hadron-hadron collision. Finally, measurements of the azimuthal correlation structure of emitted particles in high multiplicity pp collisions can probe the existence of collective behaviour in small systems. The ALICE detector can reconstruct inclusive quarkonia over a broad kinematical range, spanning from mid-rapidity up to forward rapidity, and down to zero transverse momentum. In addition, at midrapidity, the non-prompt charmonium contribution can be separated from the prompt contribution. In these proceedings, we present new results on the inclusive, prompt and non-prompt J/ψ production cross sections measured by ALICE in pp collisions at different collision energies. The self-normalized ψ(2S)-to-J/ψ yield ratio measurement is investigated as a function of the charged particle multiplicity in pp collisions at √S = 13. TeV. Finally, the first measurement of the J/ψ elliptic flow (v2) in high multiplicity pp collisions at √S = 13. TeV is presented. Results will be compared to theoretical models.

show abstract

“…the Little Higgs Models [30,31], etc. In experiment, many searches for heavy neutral Higgs have been carried out in τ + τ − [32,33], t t, b b, µ + µ − , ZZ, W W , hh, hV channels, which are reviewed in [34,35].…”

Section: Introductionmentioning

confidence: 99%

Heavy Higgs bosons at a 100 TeV hadron collider

Wang¹,

Tian²,

Jian³

2021

Preprint

View full text Add to dashboard Cite

In this work, we consider two heavy Higgs bosons (H and A) of about 2.4 ∼ 4.8 TeV in the semi-constrained NMSSM (scNMSSM) in our previous work. We study them in the pp → b bH/A → b bt t channel at a 100 TeV hardon collider. We calculate their cross section of production and branching ratios of decay, and compare the signal with the simulation result in a reference. We finally find that it is hard to detect the heavy Higgs bosons in this channel at the 100 TeV collider with an integrated luminosity of 3 ab −1 , because their branching ratio to SM particles including t t are seriously suppressed by the decay to SUSY particles. We will add discussions about detecting in other channels later.

show abstract

Phenomenology of a little Higgs pseudoaxion

Cited by 6 publications

References 40 publications

Higgs boson to γZ decay as a probe of flavor-changing neutral Yukawa couplings

Higgs boson to γZ decay as a probe of flavor-changing neutral Yukawa couplings

Quarkonium production and elliptic flow in small systems measured with ALICE

Heavy Higgs bosons at a 100 TeV hadron collider

Contact Info

Product

Resources

About