Production and hadronic decays of Higgs bosons in heavy ion collisions
Production and hadronic decays of Higgs bosons in heavy ion collisions
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重离子碰撞中希格斯玻色子的产生和强子衰变
DOI：
10.1103/physrevlett.122.041803
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发表时间：
2019
影响因子：
8.6
通讯作者：
Zhang Hao
中科院分区：
文献类型：
--
作者：
Berger Edmond L.;Gao Jun;Jueid Adil;Zhang Hao
我们在大型强子对撞机和未来的对撞机上研究了重离子碰撞中希格斯玻色子的产生和衰变。由于希格斯玻色子的长寿命，它的强子衰变可能很少或根本不会受到热而密集的夸克-胶子等离子体的屏蔽，而来自硬散射过程的喷注以及来自弱电弱规范玻色子和顶夸克衰变的喷注则遭受显著的能量损失。这种区别可以提高强子衰变通道中的信号背景比，因此，例如，提供了另一种方法来探测希格斯玻色子与底夸克的汤川耦合及其寿命。
We examine Higgs boson production and decay in heavy-ion collisions at the LHC and future colliders. Owing to the long lifetime of the Higgs boson, its hadronic decays may experience little or no screening from the hot and dense quark-gluon plasma, whereas jets from hard scattering processes and from decays of the electroweak gauge bosons and the top quark suffer significant energy loss. This distinction can lead to enhanced signal to background ratios in hadronic decay channels and thus, for example, provide alternative ways to probe the Yukawa coupling of the Higgs boson to the bottom quark and its lifetime.