搜索结果: 1-15 共查到“物理学 cross section”相关记录49条 . 查询时间(0.125 秒)
A Measurement of the W/Z Cross Section Ratio as a Function of Hadronic Activity with the ATLAS Detector
ATLAS electroweak bosons lepton+jets pqcd w/z ratio
2014/11/20
Hadronic collisions at the LHC at CERN probe particle interactions at the highest energy scale of any experiment to date. We present a research program measuring Rjet = &sigmaWBR(W&rarr&mu&nu) / (&sig...
Spin-dependent part of $\bar{p}d$ interaction cross section and Nijmegen potential
interaction cross section Nijmegen potential
2011/7/21
Low energy $\bar{p}d$ interaction is considered taking into account the polarization of both particles. The corresponding cross sections are obtained using the Nijmegen nucleon-antinucleon optical pot...
Effect of isospin dependent cross-section on elliptic flow in heavy-ion collision at intermediate energies
heavy-ion collision cross-section isospin dependent
2011/7/20
We study the elliptical flow of fragment in heavy-ion collisions for different systems at incident energies between 40 and 1200 MeV/nucleon using an isospin-dependent quantum molecular dynamics model....
Assessment of hydrocarbon electron-impact ionization cross section measurements for magnetic fusion
electron-impact ionization cross section magnetic fusion
2011/9/9
Partial ionization cross section experiments have been carried out recently at the University of Innsbruck for three types of hydrocarbons, i.e. acetylene, ethylene and propene. Cross section data ts...
Top-quark pair cross-section measurement in the lepton+jets channel
Top-quark pair cross-section measurement lepton+jets channel
2011/9/14
ps =7 TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider (LHC). Events are selected in the lepton+jets topology by requiring a single lepton (electron or muon), ...
An upper bound on the total inelastic cross-section as a function of the total cross-section
the total inelastic cross-section function the total cross-section
2010/12/24
Recently Andr\'e Martin has proved a rigorous upper bound on the inelastic cross-section $\sigma_{inel}$ at high energy which is one-fourth of the known Froissart-Martin-Lukaszuk upper bound on $\sig...
The nn quasi-free nd breakup cross section: discrepancies to theory and implications on the 1S0 nn force
nn quasi-free nd breakup cross section discrepancies theory implications
2011/1/6
Large discrepancies between quasi-free neutron-neutron (nn) cross section data from neutron-deuteron (nd) breakup and theoretical predictions based on standard nucleon-nucleon (NN) and three-nucleon (...
Electron-atom bremsstrahlung: double differential cross section and polarization correlations
Electron-atom bremsstrahlung double differential cross section polarization correlations
2010/11/16
The leading-order electron-atom bremsstrahlung is investigated within the rigorous relativistic approach based on the partial-wave representation of the Dirac wave functions in the external atomic fi...
Flavor-dependent azimuthal modulations in unpolarized SIDIS cross section at HERMES
Flavor-dependent azimuthal modulations unpolarized SIDIS section
2011/1/4
The cos h and cos 2 h azimuthal modulations of the unpolarized hadron Semi-Inclusive Deep Inelastic Scattering cross section are sensitive to the quark intrinsic transverse momentum and transverse sp...
Ultracold Atoms as a Target: Absolute Scattering Cross-Section Measurements
Ultracold Atoms Target Scattering Cross-Section Measurements
2010/11/12
We report on a new experimental platform for the measurement of absolute scattering cross-sections. The target atoms are trapped in an optical dipole trap and are exposed to an incident particle beam...
A comparative study of the neutrino-nucleon cross section at ultra high energies
neutrino-nucleon cross section ultra high energies
2011/1/5
The high energy neutrino cross section is a crucial ingredient in the calculation of the event rate in high energy neutrino telescopes.
Measurement of the energy dependence of the total photon-proton cross section at HERA
Measurement energy dependence total photon-proton
2011/1/4
The energy dependence of the photon-proton total cross section, σγp tot , was determinedfrom e+p scattering data collected with the ZEUS detector at HERA at three values of the center-of-mass energy, ...
Measurement of the two-photon absorption cross-section of liquid argon with a time projection chamber
Measurement two-photon absorption cross-section of liquid argon with a time projection chamber
2011/1/6
This paper reports on laser induced multiphoton ionization at 266 nm of liquid Argon in a Time Projection Chamber (LAr TPC) detector. The electron signal produced by the laser beam is a formidable too...
Large enhancement in hole velocity and mobility in p-type [110] and [111] silicon nanowires by cross section scaling: An atomistic analysis
silicon nanowire mobility p-type holes atomistic bandstructure
2010/11/22
The mobility of p-type nanowires (NWs) of diameters of D=12nm down to D=3nm, in [100], [110], and [111] transport orientations is calculated. An atomistic tightbinding model is used to calculate the N...
Precise measurement of the e+e－→π+π－(γ) cross section with the initial state radiation method at BABAR
pion form factor ISR g-2 BABAR
2010/5/7
We present a precise BABAR measurement on the cross section of the process e+e－→π+π－(γ) from threshold to an energy of 3 GeV with the initial state radiation (ISR) technique, using 232 fb－1 of data co...