W.E. Johns
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View article: Measurements of Xi(c)+ branching ratios
Measurements of Xi(c)+ branching ratios Open
Using data collected by the fixed target Fermilab experiment FOCUS, we measure the branching ratios of the Cabibbo favored decays $\\Xi_c^+ \\to \\Sigma^+K^-\\pi^+$, $\\Xi_c^+ \\to \\Sigma^+ \\bar{K}^{*}(892)^0$, and $\\Xi_c^+ \\to \\Lambd…
View article: Probing axionlike particles with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>γ</mml:mi><mml:mi>γ</mml:mi></mml:math> final states from vector boson fusion processes at the LHC
Probing axionlike particles with final states from vector boson fusion processes at the LHC Open
We perform a feasibility study to search for axionlike particles (ALPs) using vector boson fusion (VBF) processes at the LHC. We work in an effective field theory framework with a cutoff scale Λ and ALP mass ma, and assume that ALPs couple…
View article: Anapole dark matter via vector boson fusion processes at the LHC
Anapole dark matter via vector boson fusion processes at the LHC Open
Dark matter that is electrically neutral but couples to the electromagnetic current through higher-dimensional operators constitutes an interesting class of models. We investigate this class of models at the Large Hadron Collider, focusing…
View article: Probing heavy spin-2 bosons with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>γ</mml:mi><mml:mi>γ</mml:mi></mml:math> final states from vector boson fusion processes at the LHC
Probing heavy spin-2 bosons with final states from vector boson fusion processes at the LHC Open
New massive spin-2 particles are predicted in theoretical extensions to the\nStandard Model (SM) attempting to solve the hierarchy problem. Such theories\npostulate that gravity is diluted compared to the other fundamental forces\nbecause …
View article: Probing the stau-neutralino coannihilation region at the LHC with a soft tau lepton and a jet from initial state radiation
Probing the stau-neutralino coannihilation region at the LHC with a soft tau lepton and a jet from initial state radiation Open
We present a feasibility study, to search for dark matter at the LHC, in\nevents with one soft hadronically decaying tau lepton and missing transverse\nenergy recoiling against a hard $p_{T}$ jet from initial state radiation. This\nmethodo…
View article: Probing compressed bottom squarks with boosted jets and shape analysis
Probing compressed bottom squarks with boosted jets and shape analysis Open
A feasibility study is presented for the search of the lightest bottom squark (sbottom) in a compressed scenario, where its mass difference from the lightest neutralino is 5 GeV. Two separate studies are performed: $(1)$ final state contai…
View article: Probing compressed sleptons at the LHC using vector boson fusion processes
Probing compressed sleptons at the LHC using vector boson fusion processes Open
The vector boson fusion (VBF) topology at the Large Hadron Collider at 14 TeV provides an opportunity to search for new physics. A feasibility study for the search of sleptons in a compressed mass spectra scenario is presented in the final…