Experiments

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Dir... </span> </a> </h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> At CERN </div> <div class="preview-card__category" style="color:"> Press release </div> <div class="preview-card__date" style="color:"> <time datetime="2024-11-06T11:00:02Z">6 November, 2024</time> </div> </div> </div> </div> </div> </div> <div class="views-row"> <div data-history-node-id="191152" id="preview-card--6" class="component-preview-cards box-pattern story_page" style="background:url('/sites/default/files/styles/large/public/2024-10/ba1938f2-89a3-4bdd-bd79-5b83ed6f3e35.JPG?itok=Lh4ptU3U') no-repeat center center / cover" data-background="/sites/default/files/styles/large/public/2024-10/ba1938f2-89a3-4bdd-bd79-5b83ed6f3e35.JPG?itok=Lh4ptU3U" class="component-preview-cards box-pattern story_page"> <a class="box-link" target="" href="/news/news/cern/estonian-flag-raised-cern"></a> <div 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href="/news/press-release/cern/blowing-out-70-candles-cern-celebrates-seven-decades-discoveries-and-looks" hreflang="en" title="Blowing out 70 candles: CERN celebrates seven decades of discoveries and looks ahead to a brilliant future of science and innovation"> <span> Blowing out 70 candles: CERN celebrates seven... </span> </a> </h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> At CERN </div> <div class="preview-card__category" style="color:"> Press release </div> <div class="preview-card__date" style="color:"> <time datetime="2024-10-01T10:00:00Z">1 October, 2024</time> </div> </div> </div> </div> </div> </div> </div> <div class="view-footer"> <p class="cern-btn"><a class="cern-btn" href="/news?audience=23">Latest news</a></p> </div> </div> </div> </div> <div class="col-xs-0 col-sm-0 col-md-6 col-lg-6 col-item-megamenu"> <div class="row"> <div class="col-xs-12 col-sm-12 col-md-6 col-lg-4 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Scientists from institutes all over the world form experimental collaborations to carry out a diverse <a href="/science/physics">research programme</a>, ensuring that CERN covers a wealth of topics in physics, from the <a href="/science/physics/standard-model">Standard Model</a> to <a href="/science/physics/supersymmetry">supersymmetry</a> and from <a href="/science/experiments/isolde">exotic isotopes</a> to <a href="/science/physics/cosmic-rays-particles-outer-space">cosmic rays</a>.</p> <p>Several collaborations run experiments using the <a href="/science/accelerators/large-hadron-collider">Large Hadron Collider</a> (LHC), the most powerful accelerator in the world. In addition, fixed-target experiments, antimatter experiments and experimental facilities make use of the LHC injector chain.</p> </div> </div> </div> </div> </div> </div> </div> <div class="field--item"> <div class="component-row component-row__display__centered section-navigation effect_none"> <div class="component-row__row"> <div class="component-row__column component-row__center section-has-no-column col-md-12 col-sm-12 col-xs-12"> <div class="box-effects-wrapper "> <div class="text-component text-component-page clearfix"> <h2 class="text-component-title"> LHC experiments </h2> <div class="text-component-text cern_full_html"> <p class="column-left image-align">Nine experiments at the <a href="/science/accelerators/large-hadron-collider">Large Hadron Collider</a> (LHC) use <a href="/science/experiments/how-detector-works">detectors</a> to analyse the myriad of particles produced by collisions in the <a href="/science/accelerators/how-accelerator-works">accelerator</a>. These experiments are run by collaborations of scientists from institutes all over the world. Each experiment is distinct and characterised by its detectors.</p> <figure class="cds-image align-right" id="CERN-EX-0606036-01"><a href="//cds.cern.ch/images/CERN-EX-0606036-01" title="View on CDS"><img alt="Large Hadron Collider,LHC,Magnets,Dipole,Work,Tunnel" src="//cds.cern.ch/images/CERN-EX-0606036-01/file?size=medium"></a> <figcaption>The biggest experiments at CERN operate at the Large Hadron Collider, seen here during the installation of the accelerator's dipole magnets<span> (Image: Maximilien Brice/Claudia Marcelloni/CERN)</span></figcaption></figure> <p class="column-left image-align">The biggest of these experiments, <a href="/science/experiments/atlas">ATLAS</a> and <a href="/science/experiments/cms">CMS</a>, use general-purpose detectors to investigate the largest range of physics possible. Having two independently designed detectors is vital for cross-confirmation of any new discoveries made. <a href="/science/experiments/alice">ALICE</a> and <a href="/science/experiments/lhcb">LHCb</a> have detectors specialised for focussing on specific phenomena. These four detectors sit underground in huge caverns on the LHC ring.</p> <p class="column-left image-align">The smallest experiments on the LHC are <a href="/science/experiments/totem">TOTEM</a> and <a href="/science/experiments/lhcf">LHCf</a>, which focus on "forward particles" – protons or heavy ions that brush past each other rather than meeting head on when the beams collide. TOTEM uses detectors positioned on either side of the CMS interaction point, while LHCf is made up of two detectors which sit along the LHC beamline, at 140 metres either side of the ATLAS collision point. <a href="/science/experiments/moedal">MoEDAL-MAPP</a> uses detectors deployed near LHCb to search for a hypothetical particle called the magnetic monopole. <a href="/science/experiments/faser">FASER</a> and <a href="/science/experiments/sndlhc">SND@LHC</a>, the two newest LHC experiments, are situated close to the ATLAS collision point in order to search for light new particles and to study neutrinos.</p> </div> </div> </div> </div> </div> </div> </div> <div class="field--item"> <div class="component-row component-row__display__fluidcenter section-navigation effect_none"> <div class="background-component background__color" style="background-color:rgba(0,0,0,1); height: 100%;"></div> <div class="component-row__row"> <div class="component-row__column component-row__center section-has-no-column col-md-12 col-sm-12 col-xs-12"> <div class="box-effects-wrapper "> <div id="preview-card--10" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/ALICE-PHO-GEN-2012-001-1/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/ALICE-PHO-GEN-2012-001-1/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/alice"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/alice" title="ALICE"> <span style="color:"> ALICE </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> A Large Ion Collider Experiment </div> </div> </div> </div> </div> <div id="preview-card--11" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-EX-0511013-01/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-EX-0511013-01/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/atlas"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/atlas" title="ATLAS"> <span style="color:"> ATLAS </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> A Toroidal LHC ApparatuS </div> </div> </div> </div> </div> <div id="preview-card--12" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-EX-0712023-01/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-EX-0712023-01/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/cms"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/cms" title="CMS"> <span style="color:"> CMS </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Compact Muon Solenoid </div> </div> </div> </div> </div> <div id="preview-card--13" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-EX-0808017-01/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-EX-0808017-01/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/lhcb"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/lhcb" title="LHCb"> <span style="color:"> LHCb </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Large Hadron Collider beauty </div> </div> </div> </div> </div> <div id="preview-card--14" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-201609-210-4/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-201609-210-4/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/totem"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/totem" title="TOTEM"> <span style="color:"> TOTEM </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Total, elastic and diffractive cross-section measurement </div> </div> </div> </div> </div> <div id="preview-card--15" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/BUL-PHO-2008-075-1/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/BUL-PHO-2008-075-1/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/lhcf"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/lhcf" title="LHCf"> <span style="color:"> LHCf </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Large Hadron Collider forward </div> </div> </div> </div> </div> <div id="preview-card--16" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-201606-135-2/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-201606-135-2/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/moedal-mapp"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/moedal-mapp" title="MoEDAL-MAPP"> <span style="color:"> MoEDAL-MAPP </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Monopole and Exotics Detector at the LHC </div> </div> </div> </div> </div> <div id="preview-card--17" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-202011-156-12/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-202011-156-12/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/faser"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/faser" title="FASER"> <span style="color:"> FASER </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Forward Search Experiment </div> </div> </div> </div> </div> <div id="preview-card--18" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-202203-042-14/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-202203-042-14/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/sndlhc"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/sndlhc" title="SND@LHC"> <span style="color:"> SND@LHC </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Scattering and Neutrino Detector at the LHC </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> <div class="field--item"> <div class="component-row component-row__display__centered section-navigation effect_none"> <div class="component-row__row"> <div class="component-row__column component-row__center section-has-no-column col-md-12 col-sm-12 col-xs-12"> <div class="box-effects-wrapper "> <div class="text-component text-component-page clearfix"> <h2 class="text-component-title"> Fixed-target experiments </h2> <div class="text-component-text cern_full_html"> <p>In “fixed-target” experiments, a beam of accelerated particles is directed at a solid, liquid or gas target, which itself can be part of the detection system. </p> <p><a href="/science/experiments/compass">COMPASS</a>, which looks at the structure of hadrons – particles made of quarks – uses beams from the <a href="/science/accelerators/super-proton-synchrotron">Super Proton Synchrotron</a> (SPS).</p> <p>The SPS also feeds the North Area (NA), which houses a number of experiments. <a href="/science/experiments/na61shine">NA61/SHINE</a> studies a phase transition between hadrons and quark-gluon plasma, and conducts measurements for experiments involving cosmic rays and long-baseline neutrino oscillations. <a href="/science/experiments/na62">NA62</a> uses protons from the SPS to study rare decays of kaons. <a href="/science/experiments/na63">NA63</a> directs beams of electrons and positrons onto a variety of targets to study radiation processes in strong electromagnetic fields. <a href="/science/experiments/na64">NA64</a> is looking for new particles that would mediate an unknown interaction between visible matter and dark matter. <a href="/science/experiments/na65">NA65</a> studies the production of tau neutrinos. <a href="/science/experiments/ua9">UA9</a> is investigating how crystals could help to steer particle beams in high-energy colliders.</p> <p>The <a href="/science/experiments/cloud">CLOUD</a> experiment uses beams from the <a href="/science/accelerators/proton-synchrotron">Proton Synchrotron</a> (PS) to investigate a possible link between cosmic rays and cloud formation. <a href="/science/experiments/dirac">DIRAC</a>, which is now analysing data, is investigating the strong force between quarks.</p> </div> </div> <div id="preview-card--27" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-201810-288-4/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-201810-288-4/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/compass"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/compass" title="COMPASS"> <span style="color:"> COMPASS </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Common Muon and Proton Apparatus for Structure and Spectroscopy </div> </div> </div> </div> </div> <div id="preview-card--28" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-202011-147-2/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-202011-147-2/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/na61shine"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/na61shine" title="NA61/SHINE"> <span style="color:"> NA61/SHINE </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> SPS Heavy Ion and Neutrino Experiment </div> </div> </div> </div> </div> <div id="preview-card--29" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-201909-262-2/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-201909-262-2/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/na62"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/na62" title="NA62"> <span style="color:"> NA62 </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> North area experiment 62 </div> </div> </div> </div> </div> <div id="preview-card--30" class="component-preview-cards box-pattern portrait landing_page" style="background:url('//cds.cern.ch/images/CERN-EX-0911185-11/file?size=large') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-EX-0911185-11/file?size=large" class="component-preview-cards box-pattern portrait landing_page"> <a class="box-link" target="" href="/science/experiments/cloud"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/cloud" title="CLOUD"> <span style="color:"> CLOUD </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Cosmics Leaving Outdoor Droplets </div> </div> </div> </div> </div> <div id="preview-card--31" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('/sites/default/files/2021-03/NA63_image.jpg') no-repeat center center / cover" data-background="/sites/default/files/2021-03/NA63_image.jpg" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/na63"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/na63" title="NA63"> <span style="color:"> NA63 </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> North area experiment 63 </div> </div> </div> </div> </div> <div id="preview-card--32" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-201611-278-2/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-201611-278-2/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/na64"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/na64" title="NA64"> <span style="color:"> NA64 </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> North area experiment 64 </div> </div> </div> </div> </div> <div id="preview-card--33" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-202204-170-8/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-202204-170-8/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/na65"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/na65" title="NA65"> <span style="color:"> NA65 </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> North area experiment 65 </div> </div> </div> </div> </div> <div id="preview-card--34" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-EX-0903238-01/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-EX-0903238-01/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/ua9"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/ua9" title="UA9"> <span style="color:"> UA9 </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Crystal </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> <div class="field--item"> <div class="component-row component-row__display__centered section-navigation effect_none"> <div class="component-row__row"> <div class="component-row__column component-row__center section-has-no-column col-md-12 col-sm-12 col-xs-12"> <div class="box-effects-wrapper "> <div class="text-component text-component-page clearfix"> <h2 class="text-component-title"> Antimatter experiments </h2> <div class="text-component-text cern_full_html"> <p>Currently the <a href="/science/accelerators/antiproton-decelerator">Antiproton Decelerator</a> and <a href="/science/accelerators/antiproton-decelerator">ELENA</a> serve several experiments that are studying <a href="/science/physics/antimatter">antimatter</a> and its properties: <a href="/science/experiments/aegis">AEGIS,</a> <a href="/science/experiments/alpha">ALPHA</a>, <a href="/science/experiments/asacusa">ASACUSA</a>, <a href="/science/experiments/base">BASE</a> and <a href="/science/experiments/gbar">GBAR</a>. <a href="/science/experiments/puma">PUMA</a> is designed to carry antiprotons to <a href="https://home.cern/science/experiments/isolde">ISOLDE</a>. Earlier experiments (<a href="https://greybook.cern.ch/experiment/detail?id=AD-1">ATHENA</a>, <a href="/science/experiments/atrap">ATRAP</a> and <a href="/science/experiments/ace">ACE</a>) are now completed.</p> </div> </div> <div id="preview-card--41" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-201604-080-2/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-201604-080-2/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/aegis"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/aegis" title="AEGIS"> <span style="color:"> AEGIS </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Antihydrogen Experiment: Gravity, Interferometry, Spectroscopy </div> </div> </div> </div> </div> <div id="preview-card--42" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-201603-070-4/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-201603-070-4/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/alpha"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/alpha" title="ALPHA"> <span style="color:"> ALPHA </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Antihydrogen Laser PHysics Apparatus </div> </div> </div> </div> </div> <div id="preview-card--43" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-201401-008-1/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-201401-008-1/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/asacusa"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/asacusa" title="ASACUSA"> <span style="color:"> ASACUSA </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Atomic Spectroscopy And Collisions Using Slow Antiprotons </div> </div> </div> </div> </div> <div id="preview-card--44" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-201701-012-4/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-201701-012-4/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/base"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/base" title="BASE"> <span style="color:"> BASE </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Baryon Antibaryon Symmetry Experiment </div> </div> </div> </div> </div> <div id="preview-card--45" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/OPEN-PHO-LIFE-2018-017-5/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/OPEN-PHO-LIFE-2018-017-5/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/gbar"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/gbar" title="GBAR"> <span style="color:"> GBAR </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Gravitational Behaviour of Antimatter at Rest </div> </div> </div> </div> </div> <div id="preview-card--46" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-202212-214-9/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-202212-214-9/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/puma"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/puma" title="PUMA"> <span style="color:"> PUMA </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> antiProton Unstable Matter Annihilation </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> <div class="field--item"> <div class="component-row component-row__display__centered section-navigation effect_none"> <div class="component-row__row"> <div class="component-row__column component-row__center section-has-no-column col-md-12 col-sm-12 col-xs-12"> <div class="box-effects-wrapper "> <div class="text-component text-component-page clearfix"> <h2 class="text-component-title"> Experimental facilities </h2> <div class="text-component-text cern_full_html"> <p>Experimental facilities at CERN include <a href="/science/experiments/isolde">ISOLDE</a>, <a href="/science/experiments/medicis">MEDICIS</a>, the <a href="/science/experiments/ntof">neutron time-of-flight facility</a> (n_TOF) and the <a href="/science/experiments/cern-neutrino-platform">CERN Neutrino Platform</a>.</p> </div> </div> <div id="preview-card--51" class="component-preview-cards box-pattern landscape landing_page" style="background:url('//cds.cern.ch/images/CERN-EX-0506009-07/file?size=large') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-EX-0506009-07/file?size=large" class="component-preview-cards box-pattern landscape landing_page"> <a class="box-link" target="" href="/science/experiments/isolde"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/isolde" title="ISOLDE"> <span style="color:"> ISOLDE </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Isotope mass Separator On-Line facility </div> </div> </div> </div> </div> <div id="preview-card--52" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-201705-117-18/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-201705-117-18/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/medicis"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/medicis" title="MEDICIS"> <span style="color:"> MEDICIS </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> </div> </div> </div> </div> <div id="preview-card--53" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-201705-122-16/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-201705-122-16/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/n_tof"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/n_tof" title="n_TOF"> <span style="color:"> n_TOF </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Neutron time-of-flight facility </div> </div> </div> </div> </div> <div id="preview-card--54" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-201902-023-1/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-201902-023-1/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/cern-neutrino-platform"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/cern-neutrino-platform" title="CERN Neutrino Platform"> <span style="color:"> CERN Neutrino Platform </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> </div> </div> </div> </div> </div> </div> </div> </div> </div> <div class="field--item"> <div class="component-row component-row__display__centered section-navigation effect_none"> <div class="component-row__row"> <div class="component-row__column component-row__center section-has-no-column col-md-12 col-sm-12 col-xs-12"> <div class="box-effects-wrapper "> <div class="text-component text-component-page clearfix"> <h2 class="text-component-title"> Non-accelerator experiments </h2> <div class="text-component-text cern_full_html"> <p>Not all experiments rely on CERN’s accelerator complex. <a href="/science/experiments/ams">AMS</a>, for example, is a CERN-recognised experiment located on the International Space Station, which has its control centre at CERN. The <a href="/science/experiments/cast">CAST</a> and <a href="/science/experiments/osqar">OSQAR</a> experiments are both looking for hypothetical dark matter particles called axions.</p> </div> </div> <div id="preview-card--58" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('/sites/default/files/2021-03/ams-pic.jpg') no-repeat center center / cover" data-background="/sites/default/files/2021-03/ams-pic.jpg" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/ams"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/ams" title="AMS"> <span style="color:"> AMS </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Alpha Magnetic Spectrometer </div> </div> </div> </div> </div> <div id="preview-card--59" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-PHOTO-201612-318-33/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-PHOTO-201612-318-33/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/cast"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/cast" title="CAST"> <span style="color:"> CAST </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> CERN Axion Solar Telescope </div> </div> </div> </div> </div> <div id="preview-card--60" class="component-preview-cards box-pattern simple-display landing_page" style="background:url('//cds.cern.ch/images/CERN-HOMEWEB-PHO-2017-001-1/file?size=medium') no-repeat center center / cover" data-background="//cds.cern.ch/images/CERN-HOMEWEB-PHO-2017-001-1/file?size=medium" class="component-preview-cards box-pattern simple-display landing_page"> <a class="box-link" target="" href="/science/experiments/osqar"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3><a href="/science/experiments/osqar" title="OSQAR"> <span style="color:"> OSQAR </span> </a></h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Optical Search for QED Vacuum Bifringence, Axions and Photon Regeneration </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> <div class="field--item"> <div class="component-row component-row__display__centered section-navigation effect_none"> <div class="component-row__row"> <div class="component-row__column component-row__center section-has-no-column col-md-12 col-sm-12 col-xs-12"> <div class="box-effects-wrapper "> <div class="text-component text-component-page clearfix"> <h2 class="text-component-title"> Past experiments </h2> <div class="text-component-text cern_full_html"> <p>CERN’s experimental programme has consisted of hundreds of experiments spanning decades.</p> <p>Among these were pioneering experiments for electroweak physics, a branch of physics that <a href="/science/physics/unified-forces">unifies</a> the electromagnetic and weak <a href="/science/physics/standard-model">fundamental forces</a>. In 1958, an experiment at the <a href="/science/accelerators/synchrocyclotron">Synchrocyclotron</a> discovered a rare pion decay that spread CERN’s name around the world. Then in 1973, the <a href="/science/experiments/gargamelle">Gargamelle</a> bubble chamber presented first direct evidence of the weak neutral current. Ten years later, CERN physicists working on the <a href="/science/experiments/ua1">UA1</a> and <a href="/science/experiments/ua2">UA2</a> detectors announced the discovery of the <a href="/science/physics/w-boson-sunshine-and-stardust">W boson</a> in <a href="https://home.cern/news/news/physics/carrying-weak-force-thirty-years-w-boson">January</a> and <a href="/science/physics/z-boson">Z boson</a> in <a href="/news/news/physics/thirty-years-z-boson">June</a> – the two carriers of the electroweak force. Two key scientists behind the discoveries – <a href="/about/who-we-are/our-people/biographies/carlo-rubbia-b1934">Carlo Rubbia</a> and <a href="https://www.nobelprize.org/prizes/physics/1984/meer/facts/">Simon van der Meer</a> – received the <a href="http://www.nobelprize.org/nobel_prizes/physics/laureates/1984/">Nobel prize in physics</a> in 1984.</p> <p>From 1989, the <a href="/science/accelerators/large-electron-positron-collider">Large Electron-Positron collider</a> (LEP) enabled the <a href="/science/experiments/aleph">ALEPH</a>, <a href="/science/experiments/delphi">DELPHI</a>, <a href="/science/experiments/l3">L3</a> and <a href="/science/experiments/opal">OPAL</a> experiments to put the <a href="/science/physics/standard-model">Standard Model</a> of particle physics on a strong experimental basis. In 2000, LEP made way for the construction of the <a href="/science/accelerators/large-hadron-collider">Large Hadron Collider</a> (LHC) in the same tunnel.</p> <p>CERN’s huge contributions to electroweak physics are just some of the <a href="http://public-archive.web.cern.ch/en/Research/PastHighlights-en.html">highlights</a> of the experiments over the years.</p> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </main> <footer role="contentinfo"> <div class="row cern-footer"> <div class="col-xs-12 col-sm-4 col-md-4 col-lg-4 footer-first-col"> <div class="region region-footercolumn1"> <section id="block-followus" class="block block-block-content block-block-content6d2579e3-b650-496f-b854-0c744e176f43 clearfix"> <div class="block-custom-wrapper block-content block-content--type-basic block-content--view-mode-full ds-1col clearfix"> <div class="field field--name-field-visible-title field--type-string field--label-hidden field--item"> <p>Follow Us</p> </div> <div class="field field--name-body field--type-text-with-summary field--label-hidden field--item"><p style="font-size:36px; font-family: CERNIcons, CernIcons, cern-icons; display: flex; gap: 10px;"><a href="http://www.facebook.com/cern"><img alt="Facebook icon" data-entity-type="file" data-entity-uuid="5da97013-d976-42e3-aaf3-c2cdf2683c3d" height="40" src="/sites/default/files/inline-images/lburdych/Facebook.png" width="40" loading="lazy"> </a> <a href="http://www.instagram.com/cern"> <img alt="Instagram icon" data-entity-type="file" data-entity-uuid="e80bf359-c309-4a5e-ae36-a6d4b950b285" height="40" src="/sites/default/files/inline-images/lburdych/Instagram.png" width="40" loading="lazy"> </a> <a href="https://www.tiktok.com/@cern_ontiktok"> <img alt="TikTok icon" data-entity-type="file" data-entity-uuid="8fc6b5aa-066e-4eb5-88de-56b61690e174" height="40" src="/sites/default/files/inline-images/lburdych/TikTok_0.png" width="40" loading="lazy"></a> <a href="https://x.com/CERN"> <img alt="X icon" data-entity-type="file" data-entity-uuid="f1391fcf-1b27-42d5-9712-2052e2fceee5" height="40" src="/sites/default/files/inline-images/lburdych/X.png" width="40" loading="lazy"> </a> <a href="http://www.linkedin.com/company/cern"> <img alt="LinkedIn icon" data-entity-type="file" data-entity-uuid="8674b1e8-b762-48f5-a649-f251a0eb6ad7" height="40" src="/sites/default/files/inline-images/lburdych/LinkedIn.png" width="40" loading="lazy"> </a> <a href="http://www.youtube.com/user/cerntv"> <img alt="Youtube icon" data-entity-type="file" data-entity-uuid="d429f87c-f790-4309-b0be-970374a526f9" height="40" src="/sites/default/files/inline-images/lburdych/Youtube.png" width="40" loading="lazy"></a></p> <p> </p> <p><a href="https://linktr.ee/CERN_official" rel="noopener noreferrer" target="_blank">More Social Media Accounts</a></p> </div> </div> </section> </div> </div> <div class="col-xs-12 col-sm-8 col-md-8 col-lg-8 footer-second-col"> <div class="row">  <div class="col-sm-5 col-md-4 col-md-offset-0 col-lg-4 col-lg-offset-0"> <div class="region region-footercolumn2"> <nav role="navigation" aria-labelledby="block-findusmenu-menu" id="block-findusmenu"> <h2 id="block-findusmenu-menu">Find us</h2> <ul class="menu menu--find-us-menu nav"> <li class="first"> <a href="/contact" data-drupal-link-system-path="node/150">Contact us</a> </li> <li class="last"> <a href="/directions" data-drupal-link-system-path="node/153">Getting here</a> </li> </ul> </nav> <section id="block-contactus" class="block block-block-content block-block-content17426485-662a-41e2-b3c6-3e42f882ec6f clearfix"> <div class="block-custom-wrapper block-content block-content--type-basic block-content--view-mode-full ds-1col clearfix"> <div class="field field--name-body field--type-text-with-summary field--label-hidden field--item"><p> </p> <ul> <li>CERN</li> <li>Esplanade des Particules 1</li> <li>P.O. 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