Complete tree-level calculation of the reaction e+e-→μ+μ-b anti b and the Higgs boson signal at LEP200 and NLC energies
- 1. Nuclear Physics Inst., Moscow State Univ. (Russian Federation)
- 2. DESY - Inst. fuer Hochenergiephysik, Zeuthen (Germany)
- 3. DESY -Inst. fuer Hochenergiephysik, Zeuthen (Germany)
- 4. Inst. for High Energy Physics, Protvino (Russian Federation)
Description
A complete tree-level calculation of the reaction e+e-→μ+μ-b anti b in the electroweak standard theory for the energy range of LEP 200 and the next linear collider is presented. The matrix elements have been calculated by employing the computer program CompHEP, the phase space integrals by the Monte Carlo integrator and event generator BASES/SPRING. The dependence of the 4-fermion cross section on energy and the Higgs boson mass is studied in detail. Interference contributions between the various diagrams are found not to alter significantly the production and decay properties of the Higgs boson. It is shown that already the counting rate of the reaction e+e-→μ+μ-b anti b at LEP 200 can provide evidence for the existence of the Higgs boson. (orig.)
Additional details
Publishing Information
- Journal Title
- Zeitschrift fuer Physik. C, Particles and Fields
- Journal Volume
- 61
- Journal Issue
- 4
- Journal Page Range
- p. 675-681.
- ISSN
- 0170-9739
- CODEN
- ZPCFD2
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 25067937
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ANGULAR DISTRIBUTION; ANNIHILATION; BEAUTY PARTICLES; EFFECTIVE MASS; ELECTROMAGNETIC INTERACTIONS; ELECTRON-POSITRON INTERACTIONS; ENERGY DEPENDENCE; EXCITATION FUNCTIONS; FEYNMAN DIAGRAM; GEV RANGE 100-1000; HIGGS BOSONS; HIGGS MODEL; INTEGRAL CROSS SECTIONS; INTERFERENCE; LEPTONIC DECAY; MASS SPECTRA; MATRIX ELEMENTS; MUON PAIRS; MUONS MINUS; MUONS PLUS; NEUTRAL-CURRENT INTERACTIONS; PAIR PRODUCTION; QUARKS; REST MASS; STANDARD MODEL; SU-2 GROUPS; U-1 GROUPS; UNIFIED GAUGE MODELS; WEAK HADRONIC DECAY; WEAK INTERACTIONS; WEINBERG LEPTON MODEL; Z NEUTRAL BOSONS
- Descriptors DEC
- ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BASIC INTERACTIONS; BOSONS; CROSS SECTIONS; DECAY; DIAGRAMS; DISTRIBUTION; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FIELD THEORIES; GEV RANGE; GRAND UNIFIED THEORY; INFORMATION; INTERACTIONS; INTERMEDIATE BOSONS; INTERMEDIATE VECTOR BOSONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; LIE GROUPS; MASS; MATHEMATICAL MODELS; MATTER; MUONS; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; POSTULATED PARTICLES; QUANTUM FIELD THEORY; SPECTRA; SU GROUPS; SYMMETRY GROUPS; U GROUPS; WEAK PARTICLE DECAY