Cms cern, ch1211 geneva 23, switzerland conference report 16 may 2008 design and performance of the alignment system for the cms muon endcaps marcus hohlmann 1, gyongyi baksay. Wilt submitted to the department of physics on may 11, 2007, in partial fulfillment of the requirements for the degree of bachelor of science in physics abstract. Compact muon solenoid discovery potential for the minimal supergravity model. The compact muon solenoid experiment mailing address.
Compact muon solenoid this experiment was not only designed to detect muons but a wide. Although it has the same scientific goals as the atlas experiment. Highlights from the compact muon solenoid cms experiment mdpi. The caltech group at the compact muon solenoid cms of the cern large hadron collider, invites you to attend a seminar on tuesday december at 1 pm at lauritsen 269. The crystals are cut as pyramid frustum and the light produced in each of them is readout by two avalanche photodiodes apds, glued to the major base of the crystal. R, b, g 3 colors the particle drawings are simple artistic representations. The compact muon solenoid cms experiment is constructed as a generalpurpose experiment with excellent particle identi cation capability able to capitalize on the rich physics program of the lhc, and its design is described in more detail in 1. Compact muon solenoid other wise known as cms cms is a high energy physics experiment, that detects particles. The compact muon solenoid cms is one of the experiments at the large hadron collider lhc. Compact muon solenoid detector zoltan szillasi, noemi beni cms collaboration. Cms cern, ch1211 geneva 23, switzerland cms note 18 july 1998 a simpli. The compact muon solenoid experiment conference report.
The compact muon solenoid cms detector is one of the two general purpose particle detectors being constructed at cerns large hadron collider lhc outside geneva, switzerland. Cosmic rays detected in the muon chambers were used to trigger the readout of all cms subdetectors. Cms cr 2009100 the compact muon solenoid experiment. Cms cern, ch1211 geneva 23, switzerland cms note 24 january 1999 dimuon reconstruction in heavy ion collisions using a detailed description of cms geometry o. All structured data from the file and property namespaces is available under the creative commons cc0 license. Plato said,look to the perfection of the heavens for truth, while aristotle said look around you at what is, if you would know the truth to remember. The compact muon solenoid cms experiment is one of two large generalpurpose particle physics detectors built on the large hadron collider lhc at cern in switzerland and france. The cms collaboration brings together members of the particle physics community from across the globe in a quest to advance humanitys knowledge of the very basic laws of our universe. The compact muon solenoid cms is a generalpurpose detector at the large hadron collider lhc. The compact muon solenoid or cms detector sits at one of these four collision points. Although it has the same scientific goals as the atlas experiment, it uses different technical solutions and a. The cms experiment had a very successful physics program during the. Pdf the compact muon solenoid experiment at the cern large hadron collider will study protonproton collisions at unprecedented.
We show the number of events versus jet multiplicity along with ratios of. Ken bloom unl cyberinfrastructure workshop august 15, 2005 computing demands cms must provide computing to handle huge data rates and sizes, and strenuous demands on processing. Cms cr2008045 the compact muon solenoid experiment. The full commissioning of the calibration procedure has been deployed in year 2008 with the cms computing, software and analysis challenge csa08, which has tested the full workflow needed for cms datataking. The highlights of the recent activities and physics results leading up to the summer of 2018 from the compact muon solenoid cms. Files are available under licenses specified on their description page. The silicon sensors for the compact muon solenoid tracker. The goal of cms experiment is to investigate a wide range of physics, including the search for the higgs boson, extra dimensions, and particles that could make up dark matter. In order to sustain such a rate, a high granularity detector is built around the 3. Media in category compact muon solenoid the following 200 files are in this category, out of 226 total.
The phaseii upgrades to the large hadron collider will introduce a variety of new measurement devices to the cms, including the highgranularity calorimeter hgcal. Muon electron tau neutrino muon neutrino electron neutrino bottom strange down top charm up particles leptons111 0 0 0 23 23 23 electric charge electric charge electric charge electric charge quarks each quark. Tsesmelis, cern, geneva, switzerland abstract cms is one of the two high luminosity and high energy experiments at the lhc. The compact muon solenoid is one of the two multipurpose experiments at the cern large hadron collider. Highlights from the compact muon solenoid cms experiment. Timebased vertex reconstruction in the compact muon solenoid. Preparation cms the compact muon solenoid armenia, cis yerevan, yerevan physics institute g.
The compact muon solenoid cms experiment 1 is one of the four large experiments at the cern large hadron collider lhc with a wide range of physics goals. The conceptual design of cms started taking shape 16 years ago with physicists trying to work out how to build such a large detector and install it underground. Compact muon solenoid magnet reaches full field september 2006 weighing in at more than,000 tons, the compact muon solenoid experiments magnet is built around a. Kodolova moscow state university, moscow, russia m. Cms cern, ch1211 geneva 23, switzerland cms note may 12, 2006 detection of z0 gauge bosons in the dimuon decay mode in cms robert cousins, jason mumford, viatcheslav valuev university of. The performance of the compact muon solenoid detector for measuring missing transverse energy is evaluated using fully simulated pp collisions at a centerofmass energy of 14 tev at the large hadron collider. The solenoid resting on muon ring 0, along with one calorimetermuon endcap assembly of ecal, solenoid, and 2 muon rings. Approximately 3,600 people, representing 183 scientific institutes and 38 countries, form the cms collaboration who built and now operate the detector. Cms has over 4000 particle physicists, engineers, computer scientists, technicians and students from around 200 institutes and universities from more than 40 countries. Compact muon solenoid discovery potential for the minimal. The compact muon solenoid cms experiment at cerns large hadron collider lhc how cms works some of cmss motivations the higgs searches at cms experiment hcal. The compact muon solenoid experiment at the lhc cms docdb. Theoretical and experimental approaches to dark energy and the cosmological constant problem. The compact muon solenoid cms trigger and data acquisition 34 16 million channels charge time pattern 40 mhz collision rate 100 khz level1 trigger 1.
Charged multiplicity measurement for simulated events in. Calibration techniques for the forward hadron calorimeter of the compact muon solenoid a thesis submitted to the faculty of the graduate school of the university of minnesota by perrie leon cole in partial fulfillment of the requirements for the degree of master of science dr. Cms cern, ch1211 geneva 23, switzerland conference report 29 september 2017 v3, 15 november 2017 search for rare and exotic higgs boson decay modes junquan tao for the cms collaboration abstract the latest results in the search for rare and exotic higgs boson decays in protonproton. Cms cern, ch121 gene1 va 23, switzerland conference report 20190814 nuclear modi. Cms cr 2017315 the compact muon solenoid experiment. The cms superconducting solenoid provided a magnetic. The barrel part of the electromagnetic calorimeter of the compact muon solenoid cms at the large hadron collider of cern 1 will consist of 61,200 pbwo4 pwo crystals. Letter of intent for a general purpose detector at the lhc. It will be largely assembled and tested on the surface before being lowered into a speciallyconstructed cavern at point 5 of the lhc. Like a cylindrical onion, different layers of detectors measure the different particles, and use this key data to build up a picture of events at the heart of the collision. It has a broad physics programme ranging from studying the standard model including the higgs boson to searching for extra dimensions and particles that could make up dark matter. Cms acts as a giant, highspeed camera, taking 3d photographs of particle collisions from all directions up to 40 million times. This page was last edited on 22 october 2016, at 07. Calibration techniques for the forward hadron calorimeter.
For minimum bias events without pileup, a resolution of 6. Charged multiplicity measurement for simulated pp events in the compact muon solenoid cms detector by brian a. The compact muon solenoid cms experiment is one of two large generalpurpose particle physics detectors built on the protonproton large hadron collider lhc at cern in switzerland and france. The reasonable agreement between data and predictions from madgraph monte carlo provides con dence in using madgraph for new physics searches that involve photons and. Cms is a particle detector that is designed to see a wide range of particles and phenomena produced in highenergy collisions in the lhc. The increase in luminosity from these upgrades will also have the undesired side effect of vastly increasing pileup to a level at which the current machine learning vertex reconstruction vertexing algorithms cease to be effective.