Welcome to the website of the Compact Muon Solenoid (CMS) group from CIEMAT, a Public Research Agency for excellence in energy, environment, technology and fundamental research.

CMS is one of the leading high energy physics experiments associated to the LHC (Large Hadron Collider), a proton-proton collider under construction in the European Laboratory for Particle Physics (CERN) located in Geneva (Switzerland).

CMS is composed of an international collaboration of above 2500 scientists from more than 180 different institutions. The CIEMAT High Energy Physics group joined this collaboration in the early stages of the experiment, and remained involved in several subprojects ever since. In particular the group took a leading role in the design and assembly of the central muon detector. Almost 30 % of the drift tube chambers from the muon spectrometer were assembled in Madrid. Currently our main activities are:

1) Commissioning and calibration of the central muon detector before the startup of LHC.

2) Participation in the alignment system, responsible for the measurement of relative positions between the different subdetectors.

3) Simulation and reconstruction codes for CMS data. Data analysis of relevant physics channels.

4) Monte Carlo production.

5) Design and assembly of readout electronics for the DT muon system.

Currently the group is composed of more than 30 members, including a core of senior physicists, post-docs, graduate PhD students, engineers, technicians and support staff.