حل لغز الميون بفضل حسابات جديدة دقيقة

19 مايو، 2026

من إعداد الذكاء الاصطناعي

أثبت فريق دولي أن التباين طويل الأمد في السلوك المغناطيسي للميون ناتج عن قيود في الحسابات السابقة وليس عن فيزياء غير معروفة. ويدعم هذا العمل النموذج القياسي ويزيل مؤشراً رئيسياً على احتمال وجود قوة خامسة للطبيعة.

أمضى باحثون بقيادة الفيزيائي زولتان فودور من جامعة بنسلفانيا أكثر من عقد من الزمن في استخدام الديناميكا اللونية الكمومية على الشبكة عبر حواسيب فائقة لإعادة حساب العزم المغناطيسي الشاذ للميون. ودمجت طريقتهم الهجينة بين المحاكاة النظرية للمسافات القصيرة والمتوسطة وبين البيانات التجريبية على نطاقات أوسع، مما أدى إلى تحقيق توافق بين النظرية والتجربة ضمن أقل من نصف انحراف معياري.

Researchers discover contactless magnetic friction

22 مارس، 2026 من إعداد الذكاء الاصطناعي صورة مولدة بواسطة الذكاء الاصطناعي

Scientists at the University of Konstanz have identified a new type of sliding friction that occurs without physical contact, driven by magnetic interactions. This phenomenon breaks Amontons' law, a 300-year-old physics principle, by showing friction peaks at certain distances rather than increasing steadily with load. The findings appear in Nature Materials.

Physicists observe evidence of exotic η′-mesic nucleus

An international team of researchers has detected signs of a rare η′-mesic nucleus, a fleeting particle trapped inside an atomic nucleus. This exotic state, observed in a high-precision experiment, suggests the η′ meson's mass decreases in dense nuclear matter. The finding could shed light on how matter acquires mass through the structure of space's vacuum.

Particles emerge from vacuum in proton collisions for first time

8 أبريل، 2026 من إعداد الذكاء الاصطناعي

Physicists with the STAR collaboration have observed particles emerging directly from empty space during high-energy proton collisions at Brookhaven National Laboratory. The experiment provides strong evidence that mass can arise from vacuum fluctuations, as predicted by quantum chromodynamics. Quark-antiquark pairs promoted to real particles retained spin correlations tracing back to the vacuum.

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Physicists link extreme neutrino to exploding primordial black hole

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Physicists confirm predicted magnetic vortices in atom-thin material

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Physicists uncover island of inversion in balanced molybdenum nucleus

University of Hamburg students build axion dark matter detector

Undergraduate students at the University of Hamburg have constructed a simple cavity detector to search for axions, hypothetical particles that may constitute dark matter. Despite limited resources, their experiment set new limits on axion properties, as detailed in a recent study. The project demonstrates that small-scale efforts can contribute to major physics challenges.

Scientists reveal three discoveries in nuclear process creating gold

13 مارس، 2026 من إعداد الذكاء الاصطناعي

Nuclear physicists at the University of Tennessee have made three key findings about the rapid neutron-capture process that forms heavy elements like gold in stellar events. Their research, conducted at CERN's ISOLDE facility, clarifies how unstable atomic nuclei decay. The results, published in Physical Review Letters, could refine models of element formation in the universe.

Researchers uncover diagonal reversal in Milky Way's magnetic field

Astronomers have produced a detailed map of the Milky Way's magnetic field, revealing a surprising diagonal reversal in the Sagittarius Arm. The findings, based on new radio telescope data, help explain how this invisible force structures the galaxy. Led by scientists at the University of Calgary, the studies were published this month in The Astrophysical Journal.

14 مايو 2026 11:51