Results 81 to 90 of about 1,477,419 (252)

Generalised Known Kinematics (GKK): an approach for kinematic observables in pair production events with decays involving invisible particles

open access: yesJournal of High Energy Physics, 2023
Missing kinematic information of known invisible particles, such as neutrinos, limit several high-energy physics analysis. The undetected particle carries away momentum and energy information, preventing the total reconstruction of such an event.
Thomas M. G. Kraetzschmar   +6 more
doaj   +1 more source

Spectroscopy, Interactions and Level Splittings in Au Nanoparticles [PDF]

open access: yes, 1999
We have measured the electronic energy spectra of nm-scale Au particles using a new tunneling spectroscopy configuration. The particle diameters ranged from 5nm to 9nm, and at low energies the spectrum is discrete, as expected by the electron-in-a-box model.
arxiv   +1 more source

Constraining spin-one color-octet resonances using CDF and ATLAS data [PDF]

open access: yesThe European Physical Journal C, 2010
In this paper, we study the production of spin-one color-octet resonances (colorons) at hadron colliders in a model independent way. We use dijets data measured by CDF (at \sqrt{s}=1.96 TeV and L=1.13$ 1/pb) and ATLAS (at \sqrt{s}=7$ TeV and L=315 1/nb) collaborations at the Tevatron and the LHC respetively to impose limits on the coupling of colorons ...
openaire   +5 more sources

The LHC diphoton resonance and dark matter

open access: yesPhysics Letters B, 2016
A resonance with a mass of approximately 750 GeV has recently been “observed” at the LHC in its diphoton decay. If this state is not simply a statistical fluctuation which will disappear with more data, it could have important implications not only for ...
Yann Mambrini   +2 more
doaj  

Fast control of interactions in an ultracold two atom system: Managing correlations and irreversibility

open access: yesSciPost Physics, 2019
We design and explore a shortcut to adiabaticity (STA) for changing the interaction strength between two ultracold, harmonically trapped bosons. Starting from initially uncorrelated, non-interacting particles, we assume a time-dependent tuning of the ...
Thomás Fogarty, Lewis Ruks, Jing Li, Thomas Busch
doaj   +1 more source

Spillway preheating

open access: yesJournal of High Energy Physics, 2021
In traditional models only an order one fraction of energy is transferred from the inflaton to radiation through nonperturbative resonance production in preheating immediately after inflation, due to backreaction effects. We propose a particle production
JiJi Fan, Kaloian D. Lozanov, Qianshu Lu
doaj   +1 more source

Photon strength distributions in stable even-even molybdenum isotopes

open access: yes, 2007
Electromagnetic dipole-strength distributions up to the particle separation energies are studied for the stable even-even nuclides $^{92,94,96,98,100}$Mo in photon scattering experiments at the superconducting electron accelerator ELBE of the ...
A R Junghans   +19 more
core   +1 more source

On a possible large width 750 GeV diphoton resonance at ATLAS and CMS [PDF]

open access: yes, 2015
A bstractThe ATLAS and CMS experiments at the LHC have reported an excess of diphoton events with invariant mass around 750 GeV, with local significance of about 3.6 σ and 2.6 σ, respectively.
Daniel Aloni   +4 more
semanticscholar   +1 more source

Effective field theory after a new-physics discovery [PDF]

open access: yesJournal of High Energy Physics, 2018
When a new heavy particle is discovered at the LHC or at a future high-energy collider, it will be interesting to study its decays into Standard Model particles using an effective field-theory framework. We point out that the proper effective theory must
Stefan Alte, M. König, M. Neubert
semanticscholar   +1 more source

Central exclusive production of J/ψ and ψ(2S) mesons in pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV

open access: yesJournal of High Energy Physics, 2018
Measurements are reported of the central exclusive production of J/ψ and ψ(2S) mesons in pp collisions at a centre-of-mass energy of 13 TeV. Backgrounds are significantly reduced compared to previous measurements made at lower energies through the use of
The LHCb collaboration   +811 more
doaj   +1 more source

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