Relativistic electron–positron pair beams in a laboratory

IF 12.9 1区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Nature Astronomy Pub Date : 2024-07-22 DOI:10.1038/s41550-024-02331-7
Bishwanath Gaire
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实验室中的相对论电子-正电子对光束
相对论电子-正电子对可能在黑洞或中子星周围产生。然而,由于实验室实验困难重重,迄今为止对这种对子性质的探索还仅限于理论和模拟研究。最近,查尔斯-阿罗史密斯及其同事报告了相对论质子束与固体靶相互作用产生的高密度、准中性相对论电子-正电子对束。在实验中,欧洲核子研究中心超级质子同步加速器的相对论(440 GeV/c)质子束与由低Z材料(石墨)和高Z转换器(钽)组成的固体靶相互作用。在此过程中,质子束被转换成具有强子级联和电磁级联的对束。测量了质子对光束的能谱,并分析了其幂律指数。对束的其他特征(如束的尺寸、数量密度、束的温度)通过 FLUKA 模拟进行预测。
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来源期刊
Nature Astronomy
Nature Astronomy Physics and Astronomy-Astronomy and Astrophysics
CiteScore
19.50
自引率
2.80%
发文量
252
期刊介绍: Nature Astronomy, the oldest science, has played a significant role in the history of Nature. Throughout the years, pioneering discoveries such as the first quasar, exoplanet, and understanding of spiral nebulae have been reported in the journal. With the introduction of Nature Astronomy, the field now receives expanded coverage, welcoming research in astronomy, astrophysics, and planetary science. The primary objective is to encourage closer collaboration among researchers in these related areas. Similar to other journals under the Nature brand, Nature Astronomy boasts a devoted team of professional editors, ensuring fairness and rigorous peer-review processes. The journal maintains high standards in copy-editing and production, ensuring timely publication and editorial independence. In addition to original research, Nature Astronomy publishes a wide range of content, including Comments, Reviews, News and Views, Features, and Correspondence. This diverse collection covers various disciplines within astronomy and includes contributions from a diverse range of voices.
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