Search results for "Accelerator"
showing 10 items of 1507 documents
Spatiotemporal Nonlinear Beam Shaping
2016
The reshaping of multimode waves in optical fibers is a process where the spatial and spectral degrees of freedom are inherently coupled. Our experiments demonstrate that pumping a graded-index multimode fiber with sub-ns pulses from a microchip Nd:YAG laser leads to supercontinuum generation with a uniform bell-shaped spatial beam profile.
Spatiotemporal pulse shaping with multimode nonlinear guided waves
2018
We experimentally and theoretically investigate complex temporal pulse reshaping that accompanies Kerr beam self-cleaning in multimode optical fibers. We also study the output beam shape dependence on initial conditions.
Novel in-line fiber-optic filters and polarisers
2005
Novel in-line devices, based on a tapered fiber whose uniform waist has been metal-coated, are reported. The resonant excitation of a surface plasma mode of the metal film allows for the design of wavelength filters and polarisers
Quadrupole moments of odd-A 53−63Mn: Onset of collectivity towards N=40
2016
Physics letters / B 760, 387 - 392 (2016). doi:10.1016/j.physletb.2016.07.016
Search for flavor-changing neutral current and lepton-flavor violating decays of D-0 -> l(+)l(-)
2004
We report on a search for the flavor-changing neutral current decays $\Dz\to e^+e^-$ and $\Dz\to\mu^+\mu^-$, and the lepton-flavor violating decay $\Dz\to e^\pm\mu^\mp$. The measurement is based on $122 {fb}^{-1}$ of data collected by the \babar detector at the PEP-II asymmetric $e^+e^-$ collider. No evidence is found for any of the decays. The upper limits on the branching fractions, at the 90 % confidence level, are $1.2\times 10^{-6}$ for $\Dz\to e^+e^-$, $1.3\times 10^{-6}$ for $\Dz\to\mu^+\mu^-$, and $8.1\times 10^{-7}$ for $\Dz\to e^\pm\mu^\mp$.
"Table 24" of "Measurements of Forward Proton Production with Incident Protons and Charged Pions on Nuclear Targets at the CERN Proton Synchroton"
2010
Differential cross section for proton production with a proton beam and Carbon target in the angular range 0.200 to 0.250 radians. The errors are the square-root of the diagonal elements of the covariant matrix.
"Table 22" of "Measurements of Forward Proton Production with Incident Protons and Charged Pions on Nuclear Targets at the CERN Proton Synchroton"
2010
Differential cross section for proton production with a proton beam and Carbon target in the angular range 0.100 to 0.150 radians. The errors are the square-root of the diagonal elements of the covariant matrix.
"Table 23" of "Measurements of Forward Proton Production with Incident Protons and Charged Pions on Nuclear Targets at the CERN Proton Synchroton"
2010
Differential cross section for proton production with a proton beam and Carbon target in the angular range 0.150 to 0.200 radians. The errors are the square-root of the diagonal elements of the covariant matrix.
"Table 21" of "Measurements of Forward Proton Production with Incident Protons and Charged Pions on Nuclear Targets at the CERN Proton Synchroton"
2010
Differential cross section for proton production with a proton beam and Carbon target in the angular range 0.050 to 0.100 radians. The errors are the square-root of the diagonal elements of the covariant matrix.
"Table 7" of "Forward-backward correlations and charged-particle azimuthal distributions in pp interactions using the ATLAS detector"
2015
$\sqrt{s} = 900$ GeV, $p_T > 500 $ MeV, $|\eta|<1$.