Published December 1999 | Version v1
Report Metadata-only

Measurement of differential di-jet rates and determination of αs in deep inelastic scattering at HERA

Creators

Description

This analysis covers the measurement of differential di-jet event rates in deep inelastic ep scattering at high momentum transfer Q2. The measurement is based on data taken with the H1 detector in 1995-97 at HERA. In contrast to Monte Carlo models perturbative QCD calculations in O(αs2) describe well the measured distributions, obtained with two different jet algorithms. The value of αs is extracted by comparison of the measurement with these calculations. Using the two jet algorithms the (correlated) results are αs(MZ2)=0.119±0.0110.009 and αs(MZ2)=0.119±0.0100.008, respectively. This is in agreement with the world average value of αs. The measurement also investigates the scale dependence of the strong coupling. The observed dependence confirms the QCD expectation. (orig.)

Availability note (English)

Available from TIB Hannover: RR 8919(1999-038)

Additional details

Additional titles

Original title (German)
Messung differentieller 2-Jet-Raten und Bestimmung der starken Kopplung α

Publishing Information

Imprint Pagination
135 p.
ISSN
1435-8085
Report number
DESY-THESIS--1999-038

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
31049385
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Thesis, Non-conventional Literature
Descriptors DEI
DEEP INELASTIC SCATTERING; ELECTRON-PROTON INTERACTIONS; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; SEMI-INCLUSIVE INTERACTIONS
Descriptors DEC
ELECTRON-NUCLEON INTERACTIONS; FIELD THEORIES; INCLUSIVE INTERACTIONS; INELASTIC SCATTERING; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; QUANTUM FIELD THEORY; SCATTERING
Proposed descriptors and Free-text terms
ELEMENTARY PARTICLE JETS; ELECTRON PROTON INTERACTIONS; ELEMENTARY PARTICLE COUPLING CONSTANTS; SEMI INCLUSIVE INTERACTIONS; ELEMENTARY PARTICLE STRONG INTERACTIONS; DIFFERENTIAL DIJET RATES; DIS; ELECTRON+PROTON PRODUCING ELECTRON'+JET+JET+X; HIGH MOMENTUM TRANSFER; HERA ENERGY; PERTURBATIVE QCD; PERTURBATIVE QUANTUM CHROMODYNAMICS; ALPHA_S; SCALE DEPENDENCE; STRONG COUPLING CONSTANT