Top pair production at next-to-leading order in ATLAS with Powheg
Description
To compete with the expected precision of the LHC experiments, leading-order Monte Carlo simulations for t anti t production are not sufficient any more. Improved predictions can be achieved by generating the hard parton interaction at next-to-leading order. An alternative to the well-established MC rate at NLO program is Powheg, where only the hardest emission is performed at next-to-leading order. It can be interfaced to any pT ordered shower algorithm. We have validated Powheg for heavy flavour production with respect to t anti t at the ATLAS experiment. After a short introduction we present validation results on the event generation and truth jet level. The study shows that Powheg is on par with the MC rate at NLO approach while avoiding several of its deficiencies.
Additional details
Identifiers
Publishing Information
- Journal Title
- Verhandlungen der Deutschen Physikalischen Gesellschaft
- Journal Issue
- Bonn 2010 issue
- Series
- Also available as printed version: Verhandlungen der Deutschen Physikalischen Gesellschaft v. 45(2)
- Journal Page Range
- [1 p.]
- ISSN
- 0420-0195
- CODEN
- VDPEAZ
Conference
- Title
- 74. Annual meeting with ordinary general meeting of the DPG and 2010 Spring meeting with the professional associations extraterrestrial physics, gravitation and theory of relativity, hadrons and nuclei, particle physics, theoretical and mathematical fundamentals of the physics, the working teams equal opportunities, energy, the working groups information, young DPG, philosophy of the physics, physics and disarmament, symposia industry and book exhibition
- Original Conference Title
- 74. Jahrestagung mit Ordentlicher Mitgliederversammlung der DPG und Fruehjahrstagung 2010 mit den Fachverbaenden Extraterrestrische Physik, Gravitation und Relativitaetstheorie, Hadronen und Kerne, Teilchenphysik, Theoretische und Mathematische Grundlagen der Physik, den Arbeitskreisen Chancengleichheit, Energie, den Arbeitsgruppen junge DPG, Information, Philosophie der Physik, Physik und Abruestung, Symposien Industrie- und Buchausstellung
- Dates
- 15-19 Mar 2010
- Place
- Bonn (Germany)
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 42000193
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COMPUTERIZED SIMULATION; HADRONS; JET MODEL; MULTIPLE PRODUCTION; P CODES; PAIR PRODUCTION; PERTURBATION THEORY; PROTON-PROTON INTERACTIONS; QUANTUM CHROMODYNAMICS; T ANTIQUARKS; TRANSVERSE MOMENTUM; VALIDATION
- Descriptors DEC
- ANTIMATTER; ANTIPARTICLES; ANTIQUARKS; BARYON-BARYON INTERACTIONS; COMPUTER CODES; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; HADRON-HADRON INTERACTIONS; INTERACTIONS; LINEAR MOMENTUM; MATHEMATICAL MODELS; MATTER; NUCLEON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; POSTULATED PARTICLES; PROTON-NUCLEON INTERACTIONS; QUANTUM FIELD THEORY; QUARKS; SIMULATION; T QUARKS; TESTING; TOP PARTICLES
Optional Information
- Notes
- Session: T 39.4 Fr 14:45; No further information available