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  • 1
    Electronic Resource
    Electronic Resource
    New gauge bosons from the littlest Higgs modeland the process $e^{ + }e^{-}\rightarrow t\bar{t}$ (2005)
    Springer
    The European physical journal 40 (2005), S. 251-258 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. In the context of the littlest Higgs (LH) model, we study the process $e^{ + }e^{-}\rightarrow t\bar{t}$ . We find that the new gauge bosons Z H and B H can produce significant correction effects on this process, which can be further enhanced by suitably polarized beams. In most of the parameter space preferred by the electroweak precision data, the absolute value of the relative correction parameter $R_{B_{H}}$ is larger than 5 %. As long as $1 {\mathrm {TeV}} \leq M_{Z_{H}}\leq 1.5 {\mathrm {TeV}} $ and $0.3\leq c\leq 0.5,$ the absolute value of the relative correction parameter $R_{Z_{H}}$ is larger than $5\%$ . With reasonable values of the parameters of the LH model, the possible signals of the new gauge bosons B H and Z H can be detected via the process $e^{ + }e^{-}\rightarrow t\bar{t}$ in the future LC experiments with the CM energy $\sqrt{S} = 800 {\mathrm {GeV}} $ . B H exchange and Z H exchange can generate significantly corrections to the forward-backward asymmetry $A_{\mathrm {{FB}}}(t\bar{t})$ only in a small part of the parameter space.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjc/s2005-02131-3
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  • 2
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    Production and decay of the 125 GeV Higgs boson in the littlest Higgs model with T -parity (2013)
    Institute of Physics (IOP)
    Details
    Publication Date: 2013-05-16
    Description: Motivated by recent search results for the standard model (SM) Higgs boson at the Large Hadron Collider (LHC), we revisit the Higgs phenomenology in the littlest Higgs model with T -parity (LHT). We present the signal strength modifier μ, respectively, for the main search channels qq' → jjh → jjγγ, qq' → Vh → Vγγ, qq' → Vh → Vbb, gg → h → γγ, and gg → h → VV in the LH T model. It is found that an enhancement factor of 1.09–1.56 in the qq' → jjh → jjγγ channel can be obtained for this model in Case B with parameter f in the range 500–1000 GeV. However, the rates for bb̄, ττ̄ are significantly suppressed relative to the SM predictions, which are still consistent with the current sensitivity. It is hoped that this will be further tested with larger integrated luminosity at the LHC.
    Print ISSN: 1674-1137
    Topics: Physics
    Published by Institute of Physics (IOP)
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  • 3
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    Pair production of neutral Higgs bosons from the left-right twin Higgs model via γγ collisions (2011)
    Institute of Physics (IOP)
    Details
    Publication Date: 2011-04-15
    Description: The left-right twin Higgs (LRTH) model predicts the existence of the neutral Higgs bosons (h, ##IMG## [http://ej.iop.org/icons/Entities/varphi.gif] {varphi} 0 ), which can be produced in pairs ( ##IMG## [http://ej.iop.org/icons/Entities/varphi.gif] {varphi} 0 ##IMG## [http://ej.iop.org/icons/Entities/varphi.gif] {varphi} 0 , hh, ##IMG## [http://ej.iop.org/icons/Entities/varphi.gif] {varphi} 0 h) via γγ collisions at the next generation e + e − International Linear Collider (ILC). Our numerical results show that the production cross section of the neutral Higgs boson pair ##IMG## [http://ej.iop.org/icons/...] {varphi}
    Print ISSN: 1674-1137
    Topics: Physics
    Published by Institute of Physics (IOP)
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  • 4
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    Production of a neutral scalar associated with a photon at the LHC in the topcolor-assisted technicolor model (2012)
    Institute of Physics (IOP)
    Details
    Publication Date: 2012-06-16
    Description: In the context of the topcolor-assisted technicolor (TC2) model, we consider the production of the neutral scalar S(π 0 t or h 0 t ) associated with a photon at the LHC and compare our results with those given by the minimal supersymmetric extension of the Standard Model (MSSM). We find that its production cross section is larger or smaller than that of the scalar particle predicted by the MSSM model, depending on the values of the relevant free parameters.
    Print ISSN: 1674-1137
    Topics: Physics
    Published by Institute of Physics (IOP)
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