37 Result(s)
within
Tao han
Classical and Quantum Gravitation, Relativity Theory
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Article
QCD corrections to scalar diquark production at hadron colliders
We calculate the next-to-leading order QCD corrections to quark-quark annihilation to a scalar resonant state (“diquark”) in a color representation of antitriplet or sextet at the Tevatron and LHC energies. At...
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Article
New physics signals in longitudinal gauge boson scattering at the LHC
We introduce a novel technique designed to look for signatures of new physics in vector boson fusion processes at the TeV scale. This functions by measuring the polarization of the vector bosons to determine the
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μτ production at hadron colliders
Motivated by large \(\nu_{\mu} - \nu_{\tau} \) flavor mixing, we consider μτ production at hadron colliders via dime...
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Article
Top quarks as a window to string resonances
We study the discovery potential of string resonances decaying to \( t\bar{t} \) final state at the LHC. We point out t...
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Article
Colored resonant signals at the LHC: largest rate and simplest topology
We study the colored resonance production at the LHC in a most general approach. We classify the possible colored resonances based on group theory decomposition, and construct their effective interactions with...
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Article
Lepton number violation from colored states at the LHC
The possibility to search for lepton number violating signals at the Large Hadron Collider (LHC) in the colored seesaw scenario is investigated. In this context the fields that generate neutrino masses at the ...
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Open AccessModel-independent searches for new quarks at the LHC
New vector-like quarks can have sizable couplings to first generation quarks without conflicting with current experimental constraints. The coupling with valence quarks and unique kinematics make single produc...
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Article
New physics from the top at the LHC
The top quark may hold the key to new physics associated with the electroweak symmetry-breaking sector, given its large mass and enhanced coupling to the Higgs sector. We systematically categorize generic inte...
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Low-mass Higgs bosons in the NMSSM and their LHC implications
We study the Higgs sector of the Next to Minimal Supersymmetric Standard Model (NMSSM) in light of the discovery of the SM-like Higgs boson at the LHC. We perform a broad scan over the NMSSM parameter space an...
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Dark matter and Higgs bosons in the MSSM
We investigate dark matter (DM) in the context of the minimal supersymmetric extension of the standard model (MSSM). We scan through the MSSM parameter space and search for solutions that (a) are consistent wi...
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Article
Non-decoupling MSSM Higgs sector and light superpartners
In the “non-decoupling” region of the Higgs sector in MSSM, the heavier CP-even Higgs boson (H 0) is Standard-Model-like and close to the charged Higgs bosons (H ±)...
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Article
Open AccessLight neutralino dark matter: direct/indirect detection and collider searches
We study the neutralino being the Lightest Supersymmetric Particle (LSP) as a cold Dark Matter (DM) candidate with a mass less than 40 GeV in the framework of the Next-to-Minimal-Supersymmetric-Standard-Model ...
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Article
Open AccessHeavy Majorana neutrinos from Wγ fusion at hadron colliders
Vector boson fusion processes become increasingly more important at higher collider energies and for probing larger mass scales due to collinear logarithmic enhancements of the cross section. In this context, ...
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Open AccessTop-quark initiated processes at high-energy hadron colliders
In hadronic collisions at high energies, the top-quark may be treated as a parton inside a hadron. Top-quark initiated processes become increasingly important since the top-quark luminosity can reach a few per...
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Article
Open AccessHeavy color-octet particles at the LHC
Many new-physics models, especially those with a color-triplet top-quark partner, contain a heavy color-octet state. The “naturalness” argument for a light Higgs boson requires that the color-octet state be no...
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Open AccessMuon g − 2 in the aligned two Higgs doublet model
We study the Two-Higgs-Doublet Model with the aligned Yukawa sector (A2HDM) in light of the observed excess measured in the muon anomalous magnetic moment. We take into account the existing theoretical and exp...
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Open AccessUnblinding the dark matter blind spots
The dark matter (DM) blind spots in the Minimal Supersymmetric Standard Model (MSSM) refer to the parameter regions where the couplings of the DM particles to the Z-boson or the Higgs boson are almost zero, leadi...
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Article
Open AccessMeasuring the CP property of Higgs coupling to tau leptons in the VBF channel at the LHC
We study the prospects of measuring the CP property of the Higgs (h) coupling to tau leptons using the vector boson fusion (VBF) production mode at the high-luminosity LHC. Utilizing the previously proposed angle...
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Open AccessRadiative decays of the Higgs boson to a pair of fermions
We revisit the radiative decays of the Higgs boson to a fermion pair h ...
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Open AccessElectroweak splitting functions and high energy showering
We derive the electroweak (EW) collinear splitting functions for the Standard Model, including the massive fermions, gauge bosons and the Higgs boson. We first present the splitting functions in the limit of u...
