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US particle physicists are inching closer to determining why the Universe exists in its current form, made overwhelmingly of matter.ÃÀ¹úµÄÁ£×ÓÎïÀíѧ¼ÒÔÚ̽Ë÷ΪºÎÏÖÐеÄÓîÖæÖ÷ÒªÓÉÕýÎïÖÊ×é³ÉµÄ¹ý³ÌÖÐÓÖ½øÁËÒ»²½¡£
Physics suggests equal amounts of matter and antimatter should have been made in the Big Bang.ÎïÀíѧ¼ÒÈÏΪµÈÁ¿µÄÕýÎïÖʺͷ´ÎïÖÊÓ¦¸ÃÔÚÓîÖæ´ó±¬Õ¨µÄ¹ý³ÌÖÐÐγɡ£
In 2010, researchers at the Tevatron accelerator claimed preliminary results showing a small excess of matter over antimatter as particles decayed.2010Ä꣬Ñо¿ÈËÔ±ÔÚÁ£×Ó¶Ôײ»úµÄ³õ²½ÊÔÑéÖз¢ÏÖÔÚÕýÎïÖÊÁ£×ÓË¥±äµÄ¹ý³Ìµ±ÖÐÓÐÉÙÁ¿µÄ·´ÎïÖʳöÏÖ¡£
The team has submitted a paper showing those results are on a firmer footing.Õâ¸öÑо¿ÍŶÓÒѾ·¢±íÁËһƪÂÛÎÄÀ´ËµÃ÷Õâ¸öÊÔÑé½á¹ûµÄÕæÊµÐÔ¡£
Each of the fundamental particles known has an antimatter cousin, with identical properties but opposite electric charge.ÎïÀíѧ¼ÒÈÏΪÈκεĻù´¡ÎïÖʶ¼ÓÐÒ»¸ö·´ÎïÖÊ¡°±íÐÖ¡±£¬·´ÎïÖÊÓëÕýÎïÖʵÄÓµÓÐÒ»ÖµÄÎïÀíÌØÐÔ£¬µ«ÊÇ´øÓÐÍêÈ«Ïà·´µÄµçÐÔ¡£
When a particle encounters its antiparticle, they "annihilate" each other, disappearing in a high-energy flash of light. µ±Ò»¸öÁ£×ÓÓöµ½ËüµÄ·´ÎïÖʵÄʱºò£¬ËûÃÇ»áäÎÃð±Ë´Ë£¬Í¬Ê±·Å³ö¶áÄ¿µÄ¸ßÄÜÉÁ¹â¡£
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