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arXiv 0903.3941hep-phhep-ex
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在低能e + e对撞机上探测暗力和暗区

Probing Dark Forces and Light Hidden Sectors at Low-Energy e+e- Colliders

Rouven Essig, Philip Schuster, Natalia Toro

摘要:

一个暗区--一个新的非阿贝尔规范群,被希格斯或限制在GeV尺度附近--可以在低能e + e碰撞中被探测到。低质量暗扇区可以解释DAMA/LIBRA和PAMELA,ATIC和INTEGRAL观测报告的年度调制信号,通过产生小的质量分裂和弱尺度暗物质的新相互作用。其中一些观测结果可能是对撞机搜索可以明确确认的低质量暗区的第一个迹象。O(GeV)质量暗态的产生和衰变是由希格斯德阿贝尔规范玻色子与超荷动力学混合介导的。来自BaBar、BELLE、CLEO-c和KLOE的现有数据可能包含数千个引人注目的暗区事件,这些事件具有高度多样性的轻子,可以重建质量共振和可能的位移顶点。我们讨论了Higgsed和受限暗区的产生和衰变现象,并提出了e + e-对撞机的搜索策略。我们还使用DAMA/LIBRA信号来估计暗扇区态的产生截面和衰变寿命。

英文摘要:

A dark sector -- a new non-Abelian gauge group Higgsed or confined near the GeV scale -- can be spectacularly probed in low-energy e+e- collisions. A low-mass dark sector can explain the annual modulation signal reported by DAMA/LIBRA and the PAMELA, ATIC, and INTEGRAL observations by generating small mass splittings and new interactions for weak-scale dark matter. Some of these observations may be the first signs of a low-mass dark sector that collider searches can definitively confirm. Production and decay of O(GeV)-mass dark states is mediated by a Higgsed Abelian gauge boson that mixes kinetically with hypercharge. Existing data from BaBar, BELLE, CLEO-c, and KLOE may contain thousands of striking dark-sector events with a high multiplicity of leptons that reconstruct mass resonances and possibly displaced vertices. We discuss the production and decay phenomenology of Higgsed and confined dark sectors and propose e+e- collider search strategies. We also use the DAMA/LIBRA signal to estimate the production cross-sections and decay lifetimes for dark-sector states.

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。

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