Cross-section measurements of the Higgs boson decaying to a pair of tau leptons in proton-proton collisions at √s=13 TeV with the ATLAS detector
Cross-section measurements of the Higgs boson decaying to a pair of tau leptons in proton-proton collisions at √s=13 TeV with the ATLAS detector
复制标题
使用 ATLAS 探测器在 s=13 TeV 的质子-质子碰撞中衰变为一对 tau 轻子的希格斯玻色子的横截面测量
DOI：
10.1103/physrevd.99.072001
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
ATLAS Collaboration
中科院分区：
文献类型：
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作者：
ATLAS Collaboration
在衰变通道中测量了质子-质子碰撞中Higgs玻色子的产生截面。分析是使用大型强子对撞机上ATLAS实验记录的数据进行的，质心能量为。轻子衰变和强子衰变的所有组合都被考虑。在其他标准模型过程的预期背景上建立信号，观察（预期）显著性为4.4（4.1）标准差。结合使用在7和8 TeV的质心能量的数据获得的结果，观察到的（预期）的显着性的金额为6.4（5.4）标准偏差，并构成观察ofdecays。使用的数据，总的截面在thecaday测量为，希格斯玻色子的质量为125 GeV，假设其生产模式的相对贡献的标准模型的预测。分别确定了矢量-玻色子熔合产生和胶子-胶子熔合产生的衰变道总截面为σH→ττVBF=0.28±0.09（stat）-0.09+0.11（syst）pb和.类似地，拟合的结果在简化的模板横截面的框架中报告。所有测量结果均符合标准模型的预期。
A measurement of production cross sections of the Higgs boson in proton-proton collisions is presented in thedecay channel. The analysis is performed usingof data recorded by the ATLAS experiment at the Large Hadron Collider at a center-of-mass energy of. All combinations of leptonic (with) and hadronic ()decays are considered. Thesignal over the expected background from other Standard Model processes is established with an observed (expected) significance of 4.4 (4.1) standard deviations. Combined with results obtained using data taken at 7 and 8 TeV center-of-mass energies, the observed (expected) significance amounts to 6.4 (5.4) standard deviations and constitutes an observation ofdecays. Using the data taken at, the total cross section in thedecay channel is measured to be, for a Higgs boson of mass 125 GeV assuming the relative contributions of its production modes as predicted by the Standard Model. Total cross sections in thedecay channel are determined separately for vector-boson-fusion production and gluon-gluon-fusion production to be σH→ττVBF=0.28±0.09 (stat) -0.09+0.11 (syst) pb and, respectively. Similarly, results of a fit are reported in the framework of simplified template cross sections. All measurements are in agreement with Standard Model expectations.