arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.12291hep-phastro-ph.COhep-th
收藏

特胡夫特异常匹配中的暗物质

Dark Matter from 't Hooft Anomaly Matching

Michele Redi

摘要:

在限制规范理论中作为复合态出现的轻费米子由于费米子数守恒而稳定。这导致了暗物质候选者的行为类似于基本DM,但宇宙学稳定性自动产生于理论的偶然对称性。我们提出了明确的模型的基础上的特胡夫特异常匹配条件下,DM是负责SM。例如,在SU(2)$_L$的伴随代表和三重态中含有费米子的SU(N)规范理论产生了由多个“Wino”三重态组成的DM,而带有$N_F=N-4$味道的SO(N)规范理论产生了类中性子系统或SM五重态。复合效应是决定现象学的关键。

英文摘要:

Light fermions that arise as composite states in confining gauge theories are stable due to fermion number conservation. This leads to Dark Matter candidates that behave similarly to elementary DM but where the cosmological stability arises automatically from the accidental symmetries of the theory. We present explicit models based on 't Hooft anomaly matching conditions where DM is charged under the SM. For example an SU(N) gauge theory with fermions in the adjoint rep and triplet of SU(2)$_L$ gives rise to DM made of multiple "Wino" triplets, while SO(N) gauge theories with $N_F=N-4$ flavors produce neutralino-like systems or SM quintuplets. Compositeness effects are crucial to determine the phenomenology.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑