Publications (19)
Combination of the top-quark mass measurements from the Tevatron collider
The CDF, D0 collaborations, T. Aaltonen +858
The top quark is the heaviest known elementary particle, with a mass about 40 times larger than the mass of its isospin partner, the bottom quark. It decays almost 100% of the time…
Inter-Comparison and Validation of Geant4 Photon Interaction Models
M. Augelli, M. Begalli, M. G. Pia +7
A R&D project, named Nano5, has been recently launched to study an architectural design in view of addressing new experimental issues related to particle transport in high energy p…
Design and performance evaluations of generic programming techniques in a R&D prototype of Geant4 physics
M. G. Pia, P. Saracco, M. Sudhakar +9
A R&D project has been recently launched to investigate Geant4 architectural design in view of addressing new experimental issues in HEP and other related physics disciplines. In t…
Measurement of the differential cross section dÏ/dt in elastic scattering at sqrt(s)=1.96 TeV
D0 Collaboration, V. M. Abazov, B. Abbott +406
We present a measurement of the elastic differential cross section as a function of the four-momentum-transfer squared t. The data sample cor…
Search for pair production of the scalar top quark in the electron-muon final state
V. M. Abazov, B. Abbott, M. Abolins +428
We report the result of a search for the pair production of the lightest supersymmetric partner of the top quark () in collisions at a center-of-mass energy…
Measurement of the W boson helicity in top quark decays using 5.4 fb^-1 of ppbar collision data
V. M. Abazov, B. Abbott, B. S. Acharya +425
We present a measurement of the helicity of the W boson produced in top quark decays using ttbar decays in the l+jets and dilepton final states selected from a sample of 5.4 fb^-1…
Atomic Parameters for Monte Carlo Transport Simulation: Survey, Validation and Induced Systematic Effects
H. Seo, M. G. Pia, L. Quintieri +3
A wide survey has been performed, concerning atomic binding energies and ionization energies used by well- known general purpose Monte Carlo codes and a few specialized electromagn…
Search for pair production of the scalar top quark in muon+tau final states
D0 Collaboration, V. M. Abazov, B. Abbott +407
We present a search for the pair production of scalar top quarks (), the lightest supersymmetric partners of the top quarks, in collisions at a center-of-…
Quantifying the unknown: issues in simulation validation and their experimental impact
M. G. Pia, M. Batic, G. Hoff +10
The assessment of the reliability of Monte Carlo simulations is discussed, with emphasis on uncertainty quantification and the related impact on experimental results. Methods and t…
Research in Geant4 electromagnetic physics design, and its effects on computational performance and quality assurance
M. Augelli, M. Begalli, S. Hauf +9
The Geant4 toolkit offers a rich variety of electromagnetic physics models; so far the evaluation of this Geant4 domain has been mostly focused on its physics functionality, while…
Combination of CDF and D0 W-Boson Mass Measurements
CDF Collaboration, T. Aaltonen, S. Amerio +771
We summarize and combine direct measurements of the mass of the boson in proton-antiproton collision data collected by CDF and D0 experiments at th…
Determination of the width of the top quark
V. M. Abazov, B. Abbott, M. Abolins +428
We extract the total width of the top quark, Gamma_t, from the partial decay width Gamma(t -> W b) measured using the t-channel cross section for single top quark production and fr…
Geant4-related R&D for new particle transport methods
M. Augelli, M. Begalli, T. Evans +11
A R&D project has been launched in 2009 to address fundamental methods in radiation transport simulation and revisit Geant4 kernel design to cope with new experimental requirements…
Precise measurement of the top quark mass in the dilepton channel at D0
D0 Collaboration, V. M. Abazov, B. Abbott +419
We measure the top quark mass (mt) in ppbar collisions at a center of mass energy of 1.96 TeV using dilepton ttbar->W+bW-bbar->l+nubl-nubarbbar events, where l denotes an electron,…
Comparison of and differential elastic cross sections and observation of the exchange of a colorless -odd gluonic compound
V. M. Abazov, B. Abbott, B. S. Acharya +473
We describe an analysis comparing the elastic cross section as measured by the D0 Collaboration at a center-of-mass energy of 1.96 TeV to that in collisions as meas…
R&D on co-working transport schemes in Geant4
M. G. Pia, P. Saracco, M. Sudhakar +9
A research and development (R&D) project related to the extension of the Geant4 toolkit has been recently launched to address fundamental methods in radiation transport simulation.…
Combination of CDF and D0 measurements of the W boson helicity in top quark decays
The CDF, D0 Collaborations, : +864
We report the combination of recent measurements of the helicity of the W boson from top quark decay by the CDF and D0 collaborations, based on data samples corresponding to integr…
Refactoring, reengineering and evolution: paths to Geant4 uncertainty quantification and performance improvement
M. Batic, M. Begalli, M. Han +9
Ongoing investigations for the improvement of Geant4 accuracy and computational performance resulting by refactoring and reengineering parts of the code are discussed. Issues in re…
Environmental Adaptability and Mutants: Exploring New Concepts in Particle Transport for Multi-Scale Simulation
M. Augelli, M. Begalli, M. Han +11
Ongoing investigations to introduce software techniques suitable to support new experimental requirements for multi-scale simulation are discussed.