scholarly journals Double elementary Goldstone Higgs boson production in future linear colliders

2018 ◽  
Vol 33 (08) ◽  
pp. 1850038
Author(s):  
Yu-Chen Guo ◽  
Chong-Xing Yue ◽  
Zhi-Cheng Liu
Keyword(s):  
Higgs Boson ◽  
Cross Sections ◽  
New Physics ◽  
Boson Production ◽  
Linear Electron ◽  
Higgs Boson Production ◽  
Electron Positron ◽  
The Standard Model ◽  
Linear Colliders ◽  
The Cross

The Elementary Goldstone Higgs (EGH) model is a perturbative extension of the Standard Model (SM), which identifies the EGH boson as the observed Higgs boson. In this paper, we study pair production of the EGH boson in future linear electron positron colliders. The cross-sections in the TeV region can be changed to about −27%, 163% and −34% for the [Formula: see text], [Formula: see text] and [Formula: see text] processes with respect to the SM predictions, respectively. According to the expected measurement precisions, such correction effects might be observed in future linear colliders. In addition, we compare the cross-sections of double SM-like Higgs boson production with the predictions in other new physics models.

scholarly journals POLARIZATION ASYMMETRY AND THE HIGGS BOSON PRODUCTION MECHANISMS

1998 ◽  
Vol 13 (23) ◽  
pp. 4011-4021 ◽  
Author(s):  
M. DUBININ ◽  
Y. KURIHARA ◽  
Y. SHIMIZU
Keyword(s):  
Higgs Boson ◽  
Cross Sections ◽  
Beam Polarization ◽  
Boson Production ◽  
Higgs Boson Production ◽  
The Standard Model ◽  
Model Scheme ◽  
Complete Set ◽  
Left And Right ◽  
Production Mechanisms

We calculate the cross-section of Higgs boson production in the reaction [Formula: see text] for the case of left and right longitudinally polarized initial electron beam. A complete set of signal and irreducible background diagrams is considered. It is shown that the ratio of cross-sections with left and right initial beam polarization provides a sensitive critical test since it exhibits the interplay of bremsstrahlung and fusion mechanisms of Higgs boson production inherent to the Standard Model scheme.

scholarly journals W-boson production in the high energy electron-photon collisions

2019 ◽  
pp. 41-50
Author(s):  
Ivan A. Shershan ◽  
Tatiana V. Shishkina
Keyword(s):  
Standard Model ◽  
Cross Sections ◽  
W Boson ◽  
High Energy ◽  
New Physics ◽  
Coupling Constants ◽  
Boson Production ◽  
The Standard Model ◽  
Electron Photon ◽  
W Boson Production

In this paper the analysis of W-boson production process in high-energy electron-photon collisions as a tool to search for deviations from the Standard Model is considered. In particular, a set of extended gauge models, including anomalous multi-boson interactions, are discussed as a promising way for «new physics» study. A numerical analysis of the total cross sections of the processes was carried out. The lowest order radiative corrections in the soft-photon approximation within the Standard Model are taken into account. Calculations beyond the Standard Model was performed, the kinematic features of the cross sections were identified. The restrictions on the anomalous triple gauge boson coupling constants were analyzed and the kinematic areas to the search for their manifestations were obtained during the experiments at the International Linear Collider. The paper shows that the search for «new physics» effects based on electron-photon collisions around the W-boson production peak is the maximal promising. It was also shown that future experiments at high luminosity linear colliders will significantly clarify the constraints on anomalous gauge coupling constants.

scholarly journals Higgs boson production in association with a single top quark at the LHC

2019 ◽  
Vol 201 ◽  
pp. 04003 ◽  
Author(s):  
Oksana A. Koval ◽  
Igor R. Boyko ◽  
Nazim Huseynov
Keyword(s):  
Monte Carlo ◽  
Higgs Boson ◽  
Standard Model ◽  
Top Quark ◽  
Monte Carlo Study ◽  
Boson Production ◽  
Model Case ◽  
Higgs Boson Production ◽  
Single Top ◽  
The Standard Model

Higgs boson production in association with a single top quark is the only process sensitive to the sign of the Top Yukawa coupling. We present a Monte-Carlo study of the pp → tHqb process and discuss the esperimental signatures that can help to discover it at the LHC. Two scenarios have been considered, the Standard Model case and the Inverted Top Coupling scenario.

scholarly journals Higgs boson production cross-section measurements and their EFT interpretation in the $$4\ell $$ decay channel at $$\sqrt{s}=$$13 TeV with the ATLAS detector

2020 ◽  
Vol 80 (10) ◽  
Author(s):  
G. Aad ◽  
◽  
B. Abbott ◽  
D. C. Abbott ◽  
A. Abed Abud ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Cross Section ◽  
Decay Channel ◽  
Branching Ratio ◽  
Proton Collision ◽  
Boson Production ◽  
Theory Approach ◽  
Higgs Boson Production ◽  
The Standard Model

AbstractHiggs boson properties are studied in the four-lepton decay channel (where lepton = e, $$\mu $$ μ ) using 139 $$\hbox {fb}^{-1}$$ fb - 1 of proton–proton collision data recorded at $$\sqrt{s}=$$ s = 13 TeV by the ATLAS experiment at the Large Hadron Collider. The inclusive cross-section times branching ratio for $$H\rightarrow ZZ^*$$ H → Z Z ∗ decay is measured to be $$1.34 \pm 0.12$$ 1.34 ± 0.12  pb for a Higgs boson with absolute rapidity below 2.5, in good agreement with the Standard Model prediction of $$1.33 \pm 0.08$$ 1.33 ± 0.08  pb. Cross-sections times branching ratio are measured for the main Higgs boson production modes in several exclusive phase-space regions. The measurements are interpreted in terms of coupling modifiers and of the tensor structure of Higgs boson interactions using an effective field theory approach. Exclusion limits are set on the CP-even and CP-odd ‘beyond the Standard Model’ couplings of the Higgs boson to vector bosons, gluons and top quarks.

scholarly journals NLO corrections to differential cross sections for pseudo-scalar Higgs boson production

2003 ◽  
Vol 551 (1-2) ◽  
pp. 137-145 ◽  
Author(s):  
B. Field ◽  
J. Smith ◽  
M.E. Tejeda-Yeomans ◽  
W.L. van Neerven
Keyword(s):  
Higgs Boson ◽  
Cross Sections ◽  
Differential Cross ◽  
Boson Production ◽  
Differential Cross Sections ◽  
Higgs Boson Production ◽  
Pseudo Scalar

scholarly journals Multi-Higgs boson production in the standard model and beyond

2006 ◽  
Vol 74 (11) ◽  
Author(s):  
T. Binoth ◽  
S. Karg ◽  
N. Kauer ◽  
R. Rückl
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Boson Production ◽  
Higgs Boson Production ◽  
The Standard Model

scholarly journals ANOMALOUS HIGGS COUPLINGS

1999 ◽  
Vol 14 (20) ◽  
pp. 3121-3156 ◽  
Author(s):  
M. C. GONZALEZ-GARCIA
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Higgs Doublet ◽  
New Physics ◽  
Boson Production ◽  
Gauge Bosons ◽  
Effective Interactions ◽  
Decay Modes ◽  
Effective Lagrangian ◽  
The Standard Model

We review the effects of new effective interactions on Higgs-boson phenomenology. New physics in the electroweak bosonic sector is expected to induce additional interactions between the Higgs doublet field and the electroweak gauge bosons, leading to anomalous Higgs couplings as well as anomalous gauge-boson self-interactions. Using a linearly realized SU (2)L× U (1)Y invariant effective Lagrangian to describe the bosonic sector of the Standard Model, we review the effects of the new effective interactions on the Higgs-boson production rates and decay modes. We summarize the results from searches for the new Higgs signatures induced by the anomalous interactions in order to constrain the scale of new physics, in particular at CERN LEP and Fermilab Tevatron colliders.

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