A5063862054- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Dark Matter and Cosmic Phenomena
- Distributed and Parallel Computing Systems
- Particle Detector Development and Performance
- Black Holes and Theoretical Physics
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Particle Accelerators and Free-Electron Lasers
- International Science and Diplomacy
- Superconducting Materials and Applications
- Neutrino Physics Research
Paul Scherrer Institute
2012-2023
Instituto de Física Corpuscular
2022
Universitat de València
2022
Universität Hamburg
1995-2000
European Organization for Nuclear Research
1997-1998
Deutsches Elektronen-Synchrotron DESY
1993-1995
Westfälische Hochschule
1993
RWTH Aachen University
1989-1992
This Report summarizes the results of first 10 months' activities LHC Higgs Cross Sections Working Group. The main goal working group was to present status-of-art on Physics at integrating all new that have appeared in last few years. is more than a mere collection proceedings general meetings. subgroups been different directions. An attempt has made from these complete and homogeneous form. subgroups' contributions correspondingly comprise parts Report. A significant amount work performed...
A bstract Now that the Higgs boson has been observed by ATLAS and CMS experiments at LHC, next important step would be to measure accurately its properties establish details of electroweak symmetry breaking mechanism. Among measurements which need performed, determination self-coupling in processes where is produced pairs utmost importance. In this paper, we discuss various allow for measurement trilinear coupling: double production gluon fusion, vector Higgs-strahlung associated with a top...
Higgs bosons can be searched for in the channels pp macro/pp-->tt macro H + X at Fermilab Tevatron and Cern Large Hadron Collider (LHC). We have calculated QCD corrections to these processes standard model next-to-leading order. The higher-order reduce renormalization factorization scale dependence considerably stabilize theoretical predictions cross sections. At central mu = (2m(t)+M(H))/2 properly defined K factors are slightly below unity (K approximately 0.8) above LHC 1.2).
A Fortran-program for the production cross-sections of squarks and gluinos at hadron colliders is described. It includes full next-to-leading order SUSY-QCD corrections to all possible final states ($\squark\squarkbar, \gluino\gluino, \squark\gluino, \squark\squark$). The program allows calculate total as well differential distributions in transverse momentum p_t rapidity y one outgoing particles. In addition cuts can easily be implemented.
Gluon fusion is the main production mechanism for Higgs bosons with masses up to several hundred GeV in pp collisions at CERN Large Hadron Collider and Superconducting Super Collider. We present QCD corrections cross section arbitrary boson top quark mass values: gg\ensuremath{\rightarrow}H(g), gq\ensuremath{\rightarrow}Hq, qq\ifmmode\bar\else\textasciimacron\fi{}\ensuremath{\rightarrow}Hg. The correc tions are positive they increase \ensuremath{\sigma}(pp\ensuremath{\rightarrow}H) by about...
In this note we discuss the combination of usual renormalization and factorization scale uncertainties Higgs-pair production via gluon fusion with novel originating from scheme choice virtual top mass. Moreover, address related to top-mass definition for different values trilinear Higgs coupling their other uncertainties.
A program for the calculation of total Higgs production cross section via gluon fusion at hadron colliders including next--to--leading order QCD corrections is presented. It suitable especially Standard Model bosons and neutral particles minimal supersymmetric extension. The provides a model--independent scalar [\CP--even] as well pseudoscalar [\CP--odd] contributions virtual top bottom quarks inside loop coupled to particles. relevant input parameters can be chosen from an file. As special...
We have determined the next-to-leading order QCD corrections to production of squark-antisquark pairs in $p\overline{p}$ collisions. The renormalization scale dependence is reduced considerably. cross section at Fermilab Tevatron increases by about a factor 2 if we compare prediction near squark mass with lowest for which, experimental analyses, was identified invariant energy parton subprocesses. This results rise lower bound on from $20$ GeV.
Higgs pair production through gluon fusion is an important process at the LHC to test dynamics underlying electroweak symmetry breaking. sectors beyond Standard Model (SM) can substantially modify this cross section novel couplings not present in SM or on-shell of new heavy bosons that subsequently decay into pairs. CP violation sector for explanation observed matter-antimatter asymmetry baryogenesis. In work we compute next-to-leading order (NLO) QCD corrections top quark limit, including...
In this note we give interim recommendations on how to evaluate LHC cross sections for (neutral) Higgs production and branching ratios in the general (CP-conserving) Two-Higgs-Doublet Model (2HDM). The current status of available higher-order corrections decay model is discussed, existing public codes implementing these calculations are described. Numerical results presented a set reference scenarios, demonstrating very good agreement between obtained using different programs.