scholarly journals Search for the Higgs Boson Decaying to Two Tau Leptons in $p\bar{p}$ Collisions at a Center of Mass Energy of 1.96 Tev

2011 ◽  
Author(s):  
Andrey Lvovich Elagin
Keyword(s):  
Higgs Boson ◽  
Center Of Mass ◽  
Tau Leptons ◽  
Mass Energy ◽  
Center Of Mass Energy ◽  
Higgs Boson Decaying

scholarly journals Measuring the quartic Higgs self-coupling at a multi-TeV muon collider

2020 ◽  
Vol 2020 (9) ◽  
Author(s):  
M. Chiesa ◽  
F. Maltoni ◽  
L. Mantani ◽  
B. Mele ◽  
F. Piccinini ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Center Of Mass ◽  
Mass Energy ◽  
Simple Analysis ◽  
Proton Proton ◽  
Coupling Interaction ◽  
Center Of Mass Energy ◽  
Muon Collider ◽  
Better Than

Abstract Measuring the shape of the Higgs boson potential is of paramount importance, and will be a challenging task at current as well as future colliders. While the expectations for the measurement of the trilinear Higgs self-coupling are rather promising, an accurate measurement of the quartic self-coupling interaction is presently considered extremely challenging even at a future 100 TeV proton-proton collider. In this work we explore the sensitivity that a muon collider with a center of mass energy in the multi-TeV range and luminosities of the order of 1035cm−2s−1, as presently under discussion, might provide, thanks to a rather large three Higgs-boson production and to a limited background. By performing a first and simple analysis, we find a clear indication that a muon collider could provide a determination of the quartic Higgs self-coupling that is significantly better than what is currently considered attainable at other future colliders.

scholarly journals Measuring Higgs self-couplings in the presence of V V H and V V HH at the ILC

2019 ◽  
Vol 34 (18) ◽  
pp. 1950094 ◽  
Author(s):  
Satendra Kumar ◽  
Poulose Poulose ◽  
Rafiqul Rahaman ◽  
Ritesh K. Singh
Keyword(s):  
Higgs Boson ◽  
Strong Dependence ◽  
Center Of Mass ◽  
Electroweak Symmetry ◽  
Mass Energy ◽  
Center Of Mass Energy ◽  
Lagrangian Framework ◽  
Effective Lagrangian ◽  
Gauge Boson Couplings ◽  
Two Parameter

The recent discovery of a Higgs boson at LHC, while establishing the Higgs mechanism as the way of electroweak symmetry breaking, started an era of precision measurements involving the Higgs boson. In an effective Lagrangian framework, we consider the [Formula: see text] process, at an ILC running at a center-of-mass energy of 500 GeV to investigate the effect of the [Formula: see text] and [Formula: see text] couplings on the sensitivity of [Formula: see text] coupling on this process. Our results show that the sensitivity of the trilinear Higgs self-couplings on this process has somewhat strong dependence on the Higgs-gauge boson couplings. Single- and two-parameter reaches of ILC with integrated luminosity of 1000 fb[Formula: see text] are obtained on all the effective couplings indicating how these limits are affected by the presence of anomalous [Formula: see text] and [Formula: see text] couplings. The kinematic distributions studied to understand the effect of the anomalous couplings, again, show strong influence of [Formula: see text]–[Formula: see text] couplings on the dependence of these distributions on [Formula: see text] coupling. Similar results are indicated in the case of the process, [Formula: see text], considered at a center-of-mass energy of 2 TeV, where the cross-section is large enough. The effect of [Formula: see text] and [Formula: see text] couplings on the sensitivity of [Formula: see text] coupling is clearly established through our analyses in this process.

scholarly journals Possible Impact of the Fourth-Generation Quarks on Production of a Charged Higgs Boson at the LHC

2012 ◽  
Vol 2012 ◽  
pp. 1-8
Author(s):  
R. Çiftçi ◽  
A. K. Çiftçi ◽  
S. Sultansoy
Keyword(s):  
Higgs Boson ◽  
Hadron Collider ◽  
Center Of Mass ◽  
Mass Range ◽  
Charged Higgs Boson ◽  
Fourth Generation ◽  
Mass Energy ◽  
Center Of Mass Energy ◽  
Charged Higgs ◽  
The Impact

We investigate the impact of the fourth-generation quarks on production and decays of the charged Higgs boson at CERN Large Hadron Collider (LHC) with 14 TeV center of mass energy. The signal is the process gg→u4¯u4, followed by u4¯→W−b¯ and u4→h+b decays with subsequent h+→tb̅ and corresponding hermitic conjugates. It is shown that if mu4=400 GeV, then considered process will provide unique opportunity to discover charged Higgs boson with mass range of 200 to 350 GeV at the LHC.

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