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本文由反物质得到启发,仿照生物学进化论中“适者生存”的观点,大胆提出物理体系及与之适应的物理定律的演化、淘汰过程,力求解释反物质和暗物质的存在问题,并对演化过程做出了详细分析. 相似文献
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反物质稀缺之谜有望被揭开 总被引:1,自引:0,他引:1
一般认为,约在140亿年前宇宙诞生时,应该产生同等数量的粒子和反粒子,两者的质量相同,但电荷的正、负相反,按理说两者相遇就会湮灭生成光而消失. 相似文献
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In-medium effects and neutrino trapping on K^ and K^- production and K^- condensation in supernova matter are investigated in a chiral hadronic model. Our results show that neutrino trapping shifts the critical density for K^- condensation to higher density, the Q values for K^ and K^- production are not sensitive to neutrino trapping, in-medium effects decrease the Q values for NN→NNK^ K^- and AN→NNK^- and increase those for NN→NAK^ , K^- p→Aπ^0 and K^-n→Aπ^- as the density of supernova matter increases. Moreover, it is shown that neutrino trapping decreases the maximum masses of protoneutron stars compared with the neutrino-free case. 相似文献
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