Marcel Merk : Research
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Updated:
Nov 20, 2009
Particle Physics Experiments
I participated in the following particle physics experiments:- 1986 - 1987: As an undergradraduate student I was involved in multiparticle production studies using the European Hybrid Spectrometer (EHS) NA22 collaboration.
- 1987 - 1993: During the era of the LEP-1 I worked at the L3 experiment. The main result was the determination of the number of light neutrino generations. 1994-1995: During LEP-2 I joined the Delphi experiment, wherte I got involved for the first time with B-physics.
- 1997-1999: The HERA-B experiment aimed to perform the first CP violation measurement with B mesons, but was beaten by the B-factories BaBar at SLAC and Belle at KEK.
- 1994 - present: I am a member of the LHCb experiment since the day it was founded out of three proposed experiments: Cobex, Gajet and LHB.
The LHCb Experiment
The LHCb Detector is a precision measurement designed to study the decays of B-particles.
The Construction of the VErtex LOcator is a DVD document that summarizes the 10 year project of designing, constructing and installing the Velo detector up to and including the observation of the first LHC tracks.
The LHC Status
The machine status of the LHC can be followed via LHC operation page and in particular LHC Page1 and SPS Page1. The status of LHCb can be followed via the LHCb electronic logbook. The LHC electronic logbook can only be seen from a browser at CERN. Event displays of beam gas events in LHCb can be seen here.
The following plots show the reconstructed vertex position for collision tracks and for beam-gas tracks and here is a the comparison between the two.
