scholarly journals Search for the standard model Higgs boson in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV

2007 ◽  
Author(s):  
Viktor Veszpremi
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Center Of Mass ◽  
Standard Model Higgs Boson ◽  
Mass Energy ◽  
Proton Antiproton ◽  
Center Of Mass Energy ◽  
The Standard Model

SEARCH FOR THE STANDARD MODEL HIGGS BOSON WITH THE ALEPH DETERCTOR AT LEP2

2001 ◽  
Vol 16 (supp01a) ◽  
pp. 302-304
Author(s):  
JASON NIELSEN
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Center Of Mass ◽  
Higgs Bosons ◽  
Higgs Production ◽  
Standard Model Higgs Boson ◽  
Center Of Mass Energy ◽  
Aleph Detector ◽  
The Standard Model ◽  
Firm Evidence

As the LEP collider at CERN has increased its maximum center-of-mass energy to 209 GeV, a total integrated luminosity of 99.8 pb -1 has been collected in the ALEPH detector. The ALEPH searches for Higgs bosons have been updated, But no firm evidence for Higgs production has been observed. Standard Model Higgs boson production is excluded at 95% confidence level for Higgs masses less than 111.1 GeV/c 2, and the combined LEP results exclude Higgs masses below 113.3 GeV/c 2. The recently-granted LEP extension will allow the a currently 2σ fluctuation from background expectation at m H = 115 GeV/c 2 to become more significant if it is truly due to Higgs production.

High(est) energy lepton colliders

2021 ◽  
pp. 2142016
Author(s):  
Roberto Franceschini
Keyword(s):  
Standard Model ◽  
Center Of Mass ◽  
High Energy ◽  
New Physics ◽  
Mass Energy ◽  
Center Of Mass Energy ◽  
Lepton Colliders ◽  
The Standard Model

We discuss the physics opportunities and challenges presented by high energy lepton colliders in the range of center-of-mass energy between few and several tens of TeV. The focus is on the progress attainable on the study of weak and Higgs interactions in connection with new physics scenarios motivated by the shortcomings of the Standard Model.

scholarly journals AFTER THE STANDARD MODEL: NEW RESONANCES AT THE LHC

2009 ◽  
Vol 24 (01) ◽  
pp. 1-15 ◽  
Author(s):  
GUSTAAF BROOIJMANS
Keyword(s):  
Large Hadron Collider ◽  
Standard Model ◽  
Hadron Collider ◽  
Center Of Mass ◽  
New Physics ◽  
Mass Energy ◽  
High Expectations ◽  
Center Of Mass Energy ◽  
Energy Regime ◽  
The Standard Model

Experiments will soon start taking data at CERN's Large Hadron Collider (LHC) with high expectations for discovery of new physics phenomena. Indeed, the LHC's unprecedented center-of-mass energy will allow the experiments to probe an energy regime where the standard model is known to break down. Here, the experiments' capability to observe new resonances in various channels is reviewed.

scholarly journals HIGGS SEARCHES AT THE TEVATRON

2010 ◽  
Vol 25 (27n28) ◽  
pp. 5097-5104
Author(s):  
◽  
KAZUHIRO YAMAMOTO
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Cross Section ◽  
Mass Range ◽  
Higgs Bosons ◽  
Beyond The Standard Model ◽  
Standard Model Higgs Boson ◽  
Significant Excess ◽  
Proton Antiproton ◽  
The Standard Model

We present the latest results on searches for the standard and beyond-the-standard model Higgs bosons in proton-antiproton collisions at [Formula: see text] by the CDF and DØ experiments at the Fermilab Tevatron. No significant excess is observed above the expected background, and the cross section limits for the Higgs bosons are calculated. It is noticed that the standard model Higgs boson in the mass range 163 – 166 GeV/c2 is excluded at the 95% C.L.

scholarly journals Observability of Production of tttt quarks at pp-colliders in new physics models

2020 ◽  
Vol 18 ◽  
pp. 66-77
Author(s):  
Abdeljali Habjial
Keyword(s):  
Standard Model ◽  
Production Process ◽  
Background Noise ◽  
Center Of Mass ◽  
Top Quarks ◽  
New Physics ◽  
Atlas Detector ◽  
Mass Energy ◽  
Center Of Mass Energy ◽  
The Standard Model

The Standard Model production of four top quarks in the process pp --> tttt at a center-of-mass energy s1/2=13 Tev. The data collected by the ATLAS detector represents an impressive study potential, with an integrated luminosity of around 139 fb-1. In this manuscript, we present the production process of four top quarks at the LHC as well as some new physics models associated with this process. These models are studied in analysis carried. Some preliminary results are presented, in particular those of a new method for estimating background noise due to false leptons developed.

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