Results 1 to 10 of about 68,067 (147)

Determination of the Strong Coupling \boldmath{\as} from hadronic Event Shapes and NNLO QCD predictions using JADE Data [PDF]

open access: yes, 2009
Event Shape Data from $e^+e^-$ annihilation into hadrons collected by the JADE experiment at centre-of-mass energies between 14 GeV and 44 GeV are used to determine the strong coupling $\alpha_S$. QCD predictions complete to next-to-next-to-leading order
A. Gehrmann-De Ridder   +44 more
core   +2 more sources

Towards a standard jet definition [PDF]

open access: yes, 2003
In a simulated measurement of the $W$-boson mass, evaluation of Fisher's information shows the optimal jet definition to be physically equivalent to the $k_\mathrm{T}$ algorithm while being much faster at large multiplicities.Comment: version to appear ...
D. Yu. Grigoriev   +12 more
core   +2 more sources

Multi-Jet Event Rates in Deep Inelastic Scattering and Determination of the Strong Coupling Constant [PDF]

open access: yes, 1998
Jet event rates in deep inelastic ep scattering at HERA are investigated applying the modified JADE jet algorithm. The analysis uses data taken with the H1 detector in 1994 and 1995.
Adloff, C.   +355 more
core   +2 more sources

Determination of alpha_s using Jet Rates at LEP with the OPAL detector [PDF]

open access: yes, 2005
Hadronic events produced in e+e- collisions by the LEP collider and recorded by the OPAL detector were used to form distributions based on the number of reconstructed jets.
Abbiendi, G.   +213 more
core   +1 more source

On particle--like jets [PDF]

open access: yes, 1995
Under which conditions does a jet appear as a particle--like signal from the hidden realm of quarks and gluons? Motivated by this question jet clustering conditions are formulated, in order to characterize jet clustering algorithms, which can be used for
Hessling, Hermann
core   +2 more sources

LCD ROOT Simulation and Analysis Tools [PDF]

open access: yes, 2001
The North American Linear Collider Detector group has developed a simulation program package based on the ROOT system. The package consists of Fast simulation, the reconstruction of the Full simulated data, and physics analysis utilities.Comment: 5 pages
Abe, Toshinori, Iwasaki, Masako
core   +3 more sources

Differential (2+1) Jet Event Rates and Determination of alpha_s in Deep Inelastic Scattering at HERA [PDF]

open access: yes, 1998
Events with a (2+1) jet topology in deep-inelastic scattering at HERA are studied in the kinematic range 200 < Q^2< 10,000 GeV^2. The rate of (2+1) jet events has been determined with the modified JADE jet algorithm as a function of the jet resolution ...
Adloff, C.   +362 more
core   +2 more sources

A feasibility study of the measurement of Higgs pair creation at a Photon Linear Collider [PDF]

open access: yes, 2012
We studied the feasibility of the measurement of Higgs pair creation at a Photon Linear Collider (PLC). From the sensitivity to the anomalous self-coupling of the Higgs boson, the optimum $\gamma \gamma$ collision energy was found to be around 270 GeV ...
Fujii, Keisuke   +8 more
core   +2 more sources

Fragmentation functions using e+e- data from PETRA and LEP [PDF]

open access: yes, 2002
We investigate fragmentation of charged particles in e+e- annihilation at 22, 35 and 44 GeV in terms of their polar angle and momentum distributions. From the angular distribution the ratio of longitudinal to total hadronic cross-section was determined ...
Ackerstaff   +18 more
core   +3 more sources

Measurement of the strong coupling alpha_S from the three-jet rate in e+e- - annihilation using JADE data [PDF]

open access: yes, 2013
We present a measurement of the strong coupling alpha_S using the three-jet rate measured with the Durham algorithm in e+e- -annihilation using data of the JADE experiment at centre-of-mass energies between 14 and 44 GeV.
A. Gehrmann-De Ridder   +39 more
core   +2 more sources

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