scholarly journals Single Top and Higgs Associated Production in the MinimalB-LModel at the LHC

2016 ◽  
Vol 2016 ◽  
pp. 1-9
Author(s):  
Bingfang Yang ◽  
Zhiyong Liu ◽  
Jinzhong Han ◽  
Guang Yang
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Cross Sections ◽  
Production Cross ◽  
High Luminosity ◽  
Associated Production ◽  
Single Top ◽  
The Standard Model

We study the single top production in association with a Higgs boson in theU(1)B-Lextension of the Standard Model at the LHC. We calculate the production cross sections of the processespp→thX  (h=H1,H2;  X=j,b,W)in this model. We further study the observability of the processpp→tH2jthroughpp→t(→qq-′b)H2(→4l)jand find that it is still challenging for the 14 TeV LHC with high luminosity to detect this signal.

TRIPLE GAUGE BOSON PRODUCTION IN e+e- COLLISIONS

1991 ◽  
Vol 06 (39) ◽  
pp. 3565-3572
Author(s):  
M. H. NOUS ◽  
M. El-KISHEN ◽  
A. M. ALGELANI
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Supersymmetric Standard Model ◽  
Cross Section ◽  
Gauge Boson ◽  
Cross Sections ◽  
Production Cross ◽  
Boson Production ◽  
Production Mechanism ◽  
The Standard Model

The production cross-sections for a triple gauge boson has been investigated in both the standard model and the minimal supersymmetric standard model, via e+e-→W+W-Z0. All events that contain the Higgs-boson seem to have no influence in this process. At [Formula: see text], this process could be detected with a reasonable cross-section, the production mechanism in this case will be e+e-→Z0→W+W-→W+W-Z0.

scholarly journals Single-top and top-antitop cross sections

2018 ◽  
Vol 192 ◽  
pp. 00004
Author(s):  
Nikolaos Kidonakis
Keyword(s):  
Cross Sections ◽  
Top Quark ◽  
Production Cross ◽  
Anomalous Couplings ◽  
Total Cross Sections ◽  
Associated Production ◽  
Single Top ◽  
The Standard Model ◽  
Rapidity Distributions ◽  
Quark Transverse Momentum

I present high-order calculations, including soft-gluon corrections, for single-top and top-antitop production cross sections and differential distributions. For single-top production, results are presented for the three different channels in the Standard Model, for associated production with a charged Higgs, and for processes involving anomalous couplings. For top-antitop pair production, total cross sections and top-quark transverse-momentum and rapidity distributions are presented for various LHC energies.

scholarly journals Measurement of the inclusive and differential Higgs boson production cross sections in the leptonic WW decay mode at $$ \sqrt{s} $$ = 13 TeV

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
A. M. Sirunyan ◽  
◽  
A. Tumasyan ◽  
W. Adam ◽  
F. Ambrogi ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Cross Sections ◽  
Production Cross ◽  
W Bosons ◽  
Final State ◽  
Proton Proton ◽  
Proton Collisions ◽  
The Standard Model ◽  
Proton Proton Collisions

Abstract Measurements of the fiducial inclusive and differential production cross sections of the Higgs boson in proton-proton collisions at $$ \sqrt{s} $$ s = 13 TeV are performed using events where the Higgs boson decays into a pair of W bosons that subsequently decay into a final state with an electron, a muon, and a pair of neutrinos. The analysis is based on data collected with the CMS detector at the LHC during 2016–2018, corresponding to an integrated luminosity of 137 fb−1. Production cross sections are measured as a function of the transverse momentum of the Higgs boson and the associated jet multiplicity. The Higgs boson signal is extracted and simultaneously unfolded to correct for selection efficiency and resolution effects using maximum-likelihood fits to the observed distributions in data. The integrated fiducial cross section is measured to be 86.5 ± 9.5 fb, consistent with the Standard Model expectation of 82.5 ± 4.2 fb. No significant deviation from the Standard Model expectations is observed in the differential measurements.

scholarly journals Mass Reconstruction of MSSM Higgs Boson

2019 ◽  
Vol 64 (8) ◽  
pp. 714
Author(s):  
T. V. Obikhod ◽  
I. A. Petrenko
Keyword(s):  
Experimental Data ◽  
Higgs Boson ◽  
Standard Model ◽  
Top Quark ◽  
Computer Programs ◽  
Higgs Bosons ◽  
Associated Production ◽  
The Standard Model ◽  
The Masses ◽  
Mass Reconstruction

The problems of the Standard Model, as well as questions related to Higgs boson properties led to the need to model the ttH associated production and the Higgs boson decay to a top quark pair within the MSSM model. With the help of computer programs MadGraph, Pythia, and Delphes and using the latest kinematic cuts taken from experimental data obtained at the LHC, we have predicted the masses of MSSM Higgs bosons, A and H.

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 ASSOCIATED PRODUCTION OF THE CHARGED HIGGS BOSON AND SINGLE TOP QUARK AT THE LHC

2009 ◽  
Vol 24 (02) ◽  
pp. 143-150 ◽  
Author(s):  
YAO-BEI LIU ◽  
JIE-FEN SHEN
Keyword(s):  
Higgs Boson ◽  
Cross Section ◽  
Top Quark ◽  
Production Cross ◽  
Hadron Collider ◽  
Charged Higgs Boson ◽  
Cern Large Hadron Collider ◽  
Associated Production ◽  
Single Top ◽  
Charged Higgs

The left–right twin Higgs (LRTH) model predicts the existence of the charged Higgs ϕ±. In this paper, we study the production of the charged Higgs boson ϕ- with single top quark via the process bg → tϕ- at the CERN Large Hadron Collider (LHC). The numerical results show that the production cross-section can reach the level of 10 pb in the reasonable parameter space of the LRTH model. We expect that, as long as it is not too heavy, the possible signatures of the heavy charged Higgs boson ϕ-> might be detected via the decay mode [Formula: see text] at the LHC experiments.

scholarly journals Synthesis on Heavy Higgs from the Standard Model to 2HDM and Beyond

2020 ◽  
Vol 18 ◽  
pp. 110-142
Author(s):  
Abdeljalil Habjia
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Cross Sections ◽  
Particle Physics ◽  
Hadron Collider ◽  
Signal Strength ◽  
Beyond The Standard Model ◽  
Decay Channels ◽  
Higgs Decay ◽  
The Standard Model

In the context of particle physics, within the ATLAS and CMS experiments at large hadron collider (LHC), this work presents the discussion of the discovery of a particle compatible with the Higgs boson by the combination of several decay channels, with a mass of the order of 125.5 GeV. With increased statistics, that is the full set of data collected by the ATLAS and CMS experiments at LHC ( s1/2 = 7GeV and s1/2 = 8GeV ), the particle is also discovered individually in the channel h-->γγ with an observed significance of 5.2σ and 4.7σ, respectively. The analysis dedicated to the measurement of the mass mh and signal strength μ which is defined as the ratio of σ(pp --> h) X Br(h-->X) normalized to its Standard Model where X = WW*; ZZ*; γγ ; gg; ff. The combined results in h-->γγ channel gave the measurements: mh = 125:36 ± 0:37Gev, (μ = 1:17 ± 0:3) and the constraint on the width Γ(h) of the Higgs decay of 4.07 MeV at 95%CL. The spin study rejects the hypothesis of spin 2 at 99 %CL. The odd parity (spin parity 0- state) is excluded at more than 98%CL. Within the theoretical and experimental uncertainties accessible at the time of the analysis, all results: channels showing the excess with respect to the background-only hypothesis, measured mass and signal strength, couplings, quantum numbers (JPC), production modes, total and differential cross-sections, are compatible with the Standard Model Higgs boson at 95%CL. Although the Standard Model is one of the theories that have experienced the greatest number of successes to date, it is imperfect. The inability of this model to describe certain phenomena seems to suggest that it is only an approximation of a more general theory. Models beyond the Standard Model, such as 2HDM, MSSM or NMSSM, can compensate some of its limitations and postulate the existence of additional Higgs bosons.

THE PRODUCTION OF WEAK INTERMEDIATE BOSONS IN e-p REACTIONS

1986 ◽  
Vol 01 (08) ◽  
pp. 465-474 ◽  
Author(s):  
EMIDIO GABRIELLI
Keyword(s):  
Standard Model ◽  
Cross Sections ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Production Cross ◽  
The Standard Model ◽  
Intermediate Bosons ◽  
The Cross

The calculations of production cross sections of W’ s and Z0’ s in e-p reactions at HERA energies and beyond are revised, improved and updated. Comparison with previous calculations show that in some cases the cross sections were considerably overestimated. The effects of a possible deviation of the W anomalous magnetic moment from the standard model value are also discussed.

ASSOCIATED PRODUCTION OF LIGHT PSEUDOSCALAR BOSON η WITH TOP QUARK PAIRS IN THE SLH MODEL AT THE ILC

2011 ◽  
Vol 26 (21) ◽  
pp. 1577-1586 ◽  
Author(s):  
JINZHONG HAN ◽  
DAPENG YANG ◽  
XUELEI WANG
Keyword(s):  
Standard Model ◽  
Cross Section ◽  
Cross Sections ◽  
Top Quark ◽  
Linear Collider ◽  
International Linear Collider ◽  
Quark Pairs ◽  
Associated Production ◽  
The Standard Model ◽  
The Cross

The light pseudoscalar boson η is the typical particle predicted by the Simplest Little Higgs (SLH) model. In this paper, we investigate some processes of the associated production of a light pseudoscalar boson η with a pair of top quarks in the SLH model at the International Linear Collider (ILC), i.e. [Formula: see text] and [Formula: see text]. We find that the cross-sections of these two processes could reach [Formula: see text] fb in the favorite parameter space in the SLH model, which is consistent with the results of the cross-section of [Formula: see text] in the standard model and the cross-section of [Formula: see text] in the minimal supersymmetric standard model. It should be clear that hundreds to thousands of η can be produced at the ILC per year, these processes of [Formula: see text] are really interesting in testing the standard model and searching the signs of the SLH model.

scholarly journals Measurements of Cross Sections and Couplings of the Higgs Boson Using the ATLAS Detector

2018 ◽  
Vol 47 ◽  
pp. 1860098
Author(s):  
B. Stugu
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Cross Sections ◽  
Atlas Detector ◽  
Proton Proton ◽  
Proton Collisions ◽  
The Standard Model ◽  
8 Tev ◽  
Proton Proton Collisions

Measurements of cross sections and couplings of the Higgs boson using the ATLAS detector at CERN’s LHC are presented. Data from proton proton collisions at [Formula: see text], 8 and 13 TeV are discussed. A range of production and decay couplings can be tested with a precision that depends on the generality of the assumptions made. Data at 7 and 8 TeV are also combined with CMS results to enhance the precision. The results are all consistent with predictions of the Standard Model.

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