Search for Higgs boson decays into two new low-mass spin-0 particles in the 4b channel with the ATLAS detector using pp collisions at s=13 TeV
Search for Higgs boson decays into two new low-mass spin-0 particles in the 4b channel with the ATLAS detector using pp collisions at s=13 TeV
复制标题
使用 ATLAS 探测器在 s=13–TeV 处使用 pp 碰撞，在 4b 通道中搜索希格斯玻色子衰变成两个新的低质量自旋 0 粒子
DOI：
10.1103/physrevd.102.112006
复制
发表时间：
2020
影响因子：
5
通讯作者：
Abramowicz, H.
中科院分区：
文献类型：
--
作者：
Aad, G.;Abbott, B.;Abbott, D. C.;Abed Abud, A.;Abeling, K.;Abhayasinghe, D. K.;Abidi, S. H.;AbouZeid, O. S.;Abraham, N. L.;Abramowicz, H.
本文描述了利用大型强子对撞机的ATLAS探测器收集的质子-质子碰撞数据，寻找超越标准模型的希格斯玻色子衰变为一对新的自旋为0的粒子，随后衰变为夸克对。这个搜索的重点是范围，在那里衰变产物是准直的；它是对先前在相同最终状态下针对范围的搜索的补充，其中衰变产物被很好地分离。为了提高小分离角拓扑结构的效率，提出了一种新的衰减识别策略。该搜索是在2015年和2016年收集的综合光度下进行的，并设定了希格斯玻色子与玻色子相关联产生的产生截面的上限。
This paper describes a search for beyond the Standard Model decays of the Higgs boson into a pair of new spin-0 particles subsequently decaying into-quark pairs,, using proton-proton collision data collected by the ATLAS detector at the Large Hadron Collider at center-of-mass energy. This search focuses on the range, where the decay products are collimated; it is complementary to a previous search in the same final state targeting the range, where the decay products are well separated. A novel strategy for the identification of thedecays is deployed to enhance the efficiency for topologies with small separation angles. The search is performed withof integrated luminosity collected in 2015 and 2016 and sets upper limits on the production cross section of, where the Higgs boson is produced in association with aboson.