{"id":1184,"date":"2026-09-17T21:01:09","date_gmt":"2026-09-18T01:01:09","guid":{"rendered":"https:\/\/canasanta.ca\/?p=1184"},"modified":"2026-09-17T21:01:09","modified_gmt":"2026-09-18T01:01:09","slug":"antimatter-on-wheels","status":"publish","type":"post","link":"https:\/\/canasanta.ca\/en\/al-dia\/antimateria-sobre-ruedas\/","title":{"rendered":"Antimatter on Wheels:"},"content":{"rendered":"

A 7.5-kilometer journey paves the way for studying some of the most difficult-to-preserve particles. The goal is to get closer to answering a fundamental question: Why does a universe full of matter exist?.<\/strong><\/em><\/h4>\n

A truck, a highway, and a cargo that cannot touch the walls of its own container. That was the setting for a CERN experiment that managed to transport 92 antiprotons without losing a single one. The journey was short by any driver\u2019s standards, but it represents a significant breakthrough for those trying to understand the differences between the matter that makes up our world and its counterpart, antimatter.<\/p>\n

The transport took place on March 24, 2026, at the Meyrin facility near Geneva. The latest development is the publication, on September 16, of the scientific study describing its results. The BASE collaboration documented a 7.5-kilometer run during which the particles remained confined and the system maintained the vacuum conditions necessary to protect them. Study in *Nature*<\/a><\/p>\n

To understand this achievement, one must imagine an extraordinary challenge: storing something that disappears upon contact with the right substance. An antiproton is the antiparticle of the proton, one of the components of the atomic nucleus. Both have the same mass but opposite electric charges. When a particle encounters its antiparticle, they can annihilate each other, transforming their mass into other particles and energy.<\/p>\n

For this reason, a conventional container is insufficient. Antimatter must remain separated from the walls and any residual gas. Scientists use electric and magnetic fields to keep it suspended within an extremely empty space. The technical question was whether that delicate balance would survive a journey involving vibrations, movements, and changes in conditions. CERN: What Is Antimatter?<\/a><\/p>\n

The solution came in the form of BASE-STEP, a transportable trap designed to operate outside its usual facility. The team collected the antiprotons, disconnected the device, loaded it onto the vehicle, and kept it running during transport. Once the transfer was complete, they were able to continue working with the particles. The truck\u2019s most striking cargo was invisible; the real spectacle lay in the machinery needed to preserve it.<\/p>\n

According to CERN\u2019s announcement, the device was built to withstand the jolts of transport and fit through standard laboratory doors. That combination matters: an instrument that is too large, fragile, or dependent on permanent connections would be difficult to deploy as a distribution system for other scientific centers. Preserving the particles while everything is in motion was an essential requirement for moving forward. CERN Announcement<\/a><\/p>\n

The reason for removing the antiprotons from their production site may seem paradoxical. CERN has exceptional facilities for producing them, but the activity of its accelerators causes magnetic fluctuations that interfere with the most sensitive measurements. When searching for minute differences, the environment ultimately becomes a limiting factor.<\/p>\n

The BASE collaboration decided to develop a transportable trap precisely to overcome that obstacle. Their strategy involves transporting the particles to locations separate from the accelerators, where they can be compared with protons under more stable conditions. The transport thus bridges two distinct needs: producing antimatter at a specialized facility and studying it in an environment suitable for precision measurements. The team views this result as a step toward collaborating with external laboratories, including those affiliated with Heinrich Heine University in D\u00fcsseldorf. Explanation of the BASE Collaboration<\/a><\/p>\n

Behind that quest lies a problem far greater than the journey itself. Our universe contains stars, planets, gas, and people made of matter. However, physics suggests that the early universe must have produced matter and antimatter in nearly equal amounts. If both had been completely annihilated, the cosmic landscape would be radically different.<\/p>\n

Understanding how a small excess of matter survived remains one of the great scientific challenges. Comparing particles and antiparticles allows us to verify whether their properties match the predictions. An unexpected difference could indicate that current theories need to be expanded. The move does not solve that mystery, but it facilitates experiments capable of examining it in greater detail. CERN: The Problem of Asymmetry<\/a><\/p>\n

Getting to this point required previous tests. In October 2024, the team transported protons as part of the preparation. That test made it possible to evaluate the system\u2019s durability and its performance during transit, before tackling the additional challenges of storing antiprotons. The experiment also brought to light a very common challenge: the length of time a trip can take.<\/p>\n

The device needs to keep its superconducting magnet cool. If the cooling is no longer sufficient, it loses the conditions necessary to confine the particles. That is why a future cross-border route requires much more than just choosing a highway. Power, cooling, and autonomy must be guaranteed throughout the entire journey, including possible delays. CERN: Preliminary Tests<\/a><\/p>\n

The European Research Council explains that the device combines a superconducting magnet, cryogenic cooling, energy reserves, and a vacuum chamber. In its description of the March experiment, the assembly weighed about 850 kilograms. That mass contrasts with the extraordinarily small amount of antimatter it protects.<\/p>\n

The next challenges include extending the system\u2019s operational life and transferring the antiprotons to the instruments at the receiving laboratory. Transporting the trap is one part of the job; delivering the particles in usable condition is another. Researchers are studying power and cooling solutions for longer trips, such as the journey to D\u00fcsseldorf. European Research Council<\/a><\/p>\n

Nor is it a charge capable of causing a spectacular explosion. The amount being transported is minuscule. The main challenge lies in not losing a scientific resource that is complex to produce, capture, and maintain. The value of the experiment lies in precision and control, far more than in the number of particles collected. CERN: Storage and Security<\/a><\/p>\n

This achievement opens up a practical possibility: that more laboratories will be able to study antiprotons without having to set up operations right next to their production source. There are still tests, adjustments, and pathways to be developed. But the result provides a concrete experimental foundation for moving forward. A truck traveled a few kilometers and kept its invisible cargo intact. For physics, that journey opens up a new way to investigate what the universe is made of and why.<\/p>","protected":false},"excerpt":{"rendered":"

Un recorrido de 7,5 kil\u00f3metros abre el camino para estudiar algunas de las part\u00edculas m\u00e1s dif\u00edciles de conservar. El objetivo es acercarse a una pregunta fundamental: por qu\u00e9 existe un universo lleno de materia. Un cami\u00f3n, una carretera y una carga que no puede tocar las paredes de su propio recipiente. Esa fue la escena […]<\/p>\n","protected":false},"author":284226809,"featured_media":1186,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[33205457,3213,33205424],"tags":[33205475,33205474,33205476,33205477],"class_list":["post-1184","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-al-dia","category-ciencia","category-tecnologia","tag-antimateria","tag-cern","tag-fisica-de-particulas","tag-universo"],"acf":{"introduccion":"

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