1,434 research outputs found
-factorization approach to the Higgs boson production in channel at the LHC
We calculated a differential cross section of the Higgs boson production in
the decay channel within the framework of
-factorization. Results are obtained using an off-shell matrix element for
the process together with
Ciafaloni-Catani-Fiorani-Marchesini (CCFM) evolution equations for an
unintegrated gluon distribution function. We have presented a comparison of our
results with the latest experimental measurements at = 8 TeV and
= 13 TeV from the ATLAS and CMS collaborations at the LHC. In
addition to this, we have compared our results with the results from the
collinear factorization formalism calculated up to next-to-next-to-leading
order plus next-to-next-to-leading logarithm (NNLO + NNLL) accuracy obtained
using the HRes code for the Higgs boson production in the gluon-gluon fusion
process. Our estimates are consistently close to NNLO + NNLL results obtained
using a collinear factorization formalism and are also in agreement with
experimental measurements.Comment: 10 pages, 5 figures updated using TMDli
Minimal Spin-3/2 Dark Matter in a simple -channel model
We consider a spin~-~3/2 fermionic dark matter candidate (DM) interacting
with Standard Model fermions through a vector mediator in the -channel. We
find that for pure vector couplings almost the entire parameter space of the DM
and mediator mass consistent with the observed relic density is ruled out by
the direct detection observations through DM-nucleon elastic scattering
cross-sections. In contrast, for pure axial-vector coupling, the most stringent
constraints are obtained from mono-jet searches at the Large Hadron Collider.Comment: 8 pages, 5 figures, Version accepted for publication in EPJ
Spin-3/2 dark matter in a simple -channel model
We consider a spin-3/2 fermionic dark matter (DM) particle interacting with
the Standard Model quarks through the exchange of a charged and coloured scalar
or vector mediator in a simple -channel model. It is found that for the
vector mediator case, almost the entire parameter space allowed by the observed
relic density is already ruled out by the direct detection LUX data. No such
bounds exist on the interaction mediated by scalar particles. Monojet + missing
energy searches at the Large Hadron Collider provide the most stringent bounds
on the parameters of the model for this case. The collider bounds put a lower
limit on the allowed DM masses.Comment: Published EPJC versio
Probing anomalous couplings using di-Higgs production in electron-proton collisions
A proposed high energy Future Circular Hadron-Electron Collider would provide
sufficient energy in a clean environment to probe di-Higgs production. Using
this channel we show that the azimuthal angle correlation between the missing
transverse energy and the forward jet is a very good probe for the non-standard
and couplings. We give the exclusion limits on these couplings as
a function of integrated luminosity at a \% C.L. using the fiducial cross
sections. With appropriate error fitting methodology we find that the Higgs
boson self coupling could be measured to be of its expected Standard Model value at
TeV for an ultimate 10 ab of integrated luminosity
Identification of rRNA processing gene homologs of yeast in Neurospora crassa
Identification of rRNA processing gene homologs of yeast in Neurospora crass
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