2,462 research outputs found
3+1 dimensional Yang-Mills theory as a local theory of evolution of metrics on 3 manifolds
An explicit canonical transformation is constructed to relate the physical
subspace of Yang-Mills theory to the phase space of the ADM variables of
general relativity. This maps 3+1 dimensional Yang-Mills theory to local
evolution of metrics on 3 manifolds.Comment: 7 pages, revte
Drift time measurement in the ATLAS liquid argon electromagnetic calorimeter using cosmic muons
Charged-particle multiplicities in pp interactions at √s = 900 GeV measured with the ATLAS detector at the LHC
The first measurements from proton-proton collisions recorded with the ATLAS detector at the LHC are presented. Data were collected in December 2009 using a minimum-bias trigger during collisions at a centre-of-mass energy of 900 GeV. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity, and the relationship between mean transverse momentum and charged-particle multiplicity are measured for events with at least one charged particle in the kinematic range |η|500 MeV. The measurements are compared to Monte Carlo models of proton-proton collisions and to results from other experiments at the same centre-of-mass energy. The charged-particle multiplicity per event and unit of pseudorapidity at η=0 is measured to be 1.333 ± 0.003(stat.) ± 0.040(syst.), which is 5-15% higher than the Monte Carlo models predict
Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √(sNN) = 2.76 TeV with the ATLAS detector at the LHC
Charged-particle multiplicities in pp interactions at √s = 900 GeV measured with the ATLAS detector at the LHC
Search for new particles in two-jet final states in 7 TeV proton-proton collisions with the ATLAS detector at the LHC
Charged-particle multiplicities in pp interactions measured with the ATLAS detector at the LHC
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