Crunching Dilaton, Hidden Naturalness
Crunching Dilaton, Hidden Naturalness
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DOI：
10.1103/physrevlett.126.091801
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发表时间：
2021-03-01
影响因子：
8.6
通讯作者：
Ismail, Ameen
中科院分区：
文献类型：
--
作者：
Csaki, Csaba;D'Agnolo, Raffaele Tito;Ismail, Ameen
我们介绍了一种新的方法来希格斯自然性问题。希格斯玻色子与共形场论（CFT）扇区的介子混合，其真实基态具有很大的负真空能量。如果希格斯真空期望值不为零，并且低于O（TeV），CFT允许第二个亚稳真空，宇宙的膨胀历史是传统的。因此，只有那些希格斯粒子质量值小得不自然的哈勃补丁不会立即碎裂。这一机制的主要实验预测是一个0.1-10 GeV范围内的介子，它与希格斯粒子混合，可以在未来的对撞机和寻找弱耦合粒子的实验中被检测到。
We introduce a new approach to the Higgs naturalness problem. The Higgs mixes with the dilaton of a conformal field theory (CFT) sector whose true ground state has a large negative vacuum energy. If the Higgs vacuum expectation value is nonzero and below O(TeV), the CFT admits a second metastable vacuum, where the expansion history of the Universe is conventional. As a result, only Hubble patches with unnaturally small values of the Higgs mass do not immediately crunch. The main experimental prediction of this mechanism is a dilaton in the 0.1-10 GeV range that mixes with the Higgs and can be detected at future colliders and experiments searching for weakly coupled particles.