Explanipedia

Expected Performance of Vertex Reconstruction in the ATLAS Experiment at the LHC Open

E. V. Bouhova-Thacker, V. V. Kostyukhin, T. Koffas, Wolfgang Liebig, M. Limper , et al. · 2010

In the harsh environment of the Large Hadron Collider at CERN (design luminosity of 10(34) cm-2s-1) efficient reconstruction of vertices is crucial for many physics analyses. Described in this paper is the expected performance of the verte…

A framework for vertex reconstruction in the ATLAS experiment at LHC Open

E. V. Bouhova-Thacker, Th Koffas, V. V. Kostyukhin, W. Liebig, M. Limper , et al. · 2010

In anticipation of the first LHC data to come, a considerable effort has been devoted to ensure the efficient reconstruction of vertices in the ATLAS detector. This includes the reconstruction of photon conversions, long lived particles, s…

Averages of b-hadron and c-hadron Properties at the End of 2007 Open

E. L. Barberio, S. Tosi, R. Harr, G. Gomez Ceballos, D. Lopes Pegna , et al. · 2008

This article reports world averages for measurements of b-hadron and c-hadron properties obtained by the Heavy Flavor Averaging Group (HFAG) using the results available at the end of 2007. For the averaging, common input parameters used in…

A new inclusive secondary vertex algorithm for b-jet tagging in ATLAS Open

G. Piacquadio, C. Weiser · 2008

A new inclusive secondary vertex reconstruction algorithm which exploits the topological structure of weak b- and c-hadron decays inside jets is presented. The primary goal is the application to b-jet tagging. The fragmentation of a b-quar…

Observability of Higgs produced with top quarks and decaying to bottom quarks Open

D. Benedetti, S. Cucciarelli, C. Hill, J. Incandela, S. A. Koay , et al. · 2007

The decay, H → bb, is dominant for a Standard Model Higgs boson in the mass range just above the exclusion limit of 114.4 GeV/c 2 reported by the LEP experiments. Unfortunately, an overwhelming abundance of b¯ b events arising from more mu…

Les Houches Physics at TeV Colliders 2005, Standard Model and Higgs working group: Summary report Open

C. M. Buttar, S. Lehti, M.R. Nolten, S. Bondarenko, T. Kaneko , et al. · 2006

This Report summarises the activities of the "SM and Higgs" working group for the Workshop "Physics at TeV Colliders", Les Houches, France, 2-20 May, 2005. On the one hand, we performed a variety of experimental and theoretical studies on …

Heavy Quarks: Summary Report Open

J. T. Baines, S. P. Baranov, Olaf Behnke, J. Braciník, Matteo Cacciari , et al. · 2006

The present status of the heavy-quark production theory is critically reviewed in the first contribution. The second contribution summarises the present heavy flavour data from HERA and gives an outlook of what can be expected from HERA-II…

A Combined Secondary Vertex Based B-Tagging Algorithm in CMS Open

C. Weiser · 2006

This Note describes a b-tagging algorithm based on inclusive secondary vertex reconstruction in jets. Several topological and kinematical secondary vertex related variables as well as information from track impact parameters are combined i…

Top Physics at the LHC Open

C. Weiser · 2005

Top quark physics will be a prominent topic in Standard Model physics at the LHC. The enormous amount of top quarks expected to be produced will allow to perform a wide range of precision measurements. An overview of the planned top physic…

Introduction to heavy quarks (charm and beauty) Open

Olaf Behnke, A. Geiser, M. Corradi, U. Uwer, M. Smizanska , et al. · 2005

Perturbative QCD is expected to provide reliable predictions for the production of bottom and (to a lesser extent) charm quarks since their masses are large enough to assure the applicability of perturbative calculations. A direct comparis…

New Applications of PAX in Physics Analyses at Hadron Colliders Open

A. Schmidt, T. Walter, M. Kirsch, C. K. Jung, G. Quast , et al. · 2005

Experimental aspects of heavy flavour production at the LHC Open

J. T. Baines, A. Morsch, M. Smižanská, C. Weiser, Th. Lagouri , et al. · 2004

We review selected aspects of the experimental techniques being prepared to study heavy flavour production in the four LHC experiments (ALICE, ATLAS, CMS and LHCb) and we present the expected performance for some of the most significative …

Physics Analysis Expert PAX: First Applications Open

M. Erdmann, D. Hirschbuehl, Christopher Jung, S. Kappler, Y. Kemp , et al. · 2003

PAX (Physics Analysis Expert) is a novel, C++ based toolkit designed to assist teams in particle physics data analysis issues. The core of PAX are event interpretation containers, holding relevant information about and possible interpretat…

Workshop on the CKM Matrix and the Unitarity Triangle Open

D. Abbaneo, F. Le Diberder, M. Margoni, H. G. Moser, G. Eigen , et al. · 2003

This report contains the results of the Workshop on the CKM Unitarity Triangle, held at CERN on 13-16 February 2002 to study the determination of the CKM matrix from the available data of K, D, and B physics. This is a coherent document wi…

Wissenschaftlicher Zwischenbericht. BMBF Fördervorhaben Fortführung des DELPHI-Experiments bei LEP. Januar 2002 - Dezember 2002 [online] Open

Z. Albrecht, Thomas Allmendinger, W.-D. Apel, Gary Barker, Willem de Boer , et al. · 2003

CKM elements from K and B Meson mixing Open

J. M. Flynn, M. Paulini, S. Willocq, D. Abbaneo, C. Bozzi , et al. · 2003

This report contains the results of the Workshop on the CKM Unitarity Triangle, held at CERN on 13-16 February 2002 to study the determination of the CKM matrix from the available data of K, D, and B physics. This is a coherent document wi…

Bose-Einstein correlations in $e^{+}e^{-} \\to W^{+}W^{-}$ events Open

N. Van Remortel, C. Weiser, T. Adye, Kartik Sheth, B. Tomé , et al. · 2002

Measurements are presented on correlations between pairs of particles from dieren t W’s in the fully hadronic decay channel e + e ! W + W ! q1 q2q3 q4. The hadronic parts of the semi-leptonic channels e + e ! W + W ! q q‘ are used to const…

Studies of B_s oscillations at LEP Open

C. Weiser · 2001

A review of B s Bs mixing results from LEP is given, putting emphasis on recent measurements presented for the first time at this conference.Combined results from the B Oscillations Working Group are also presented.The LEP experiments excl…

$\Lambda$(1520) production in hadronic Z decays Open

F. Seemann, K. Hamacher, E. Schyns, C. Weiser · 1999

Magnetic deflection analysis of supersonic metastable atom beams Open

C. Weiser, P. E. Siska · 1987

Deflection of 3S1 and 3P2 metastable rare-gas atoms in an electron-impact-excited thermal supersonic expansion by an inhomogeneous magnetic field produces well-defined daughter beams for each M state. The deflection patterns are spatially …

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