论文标题
在最终状态下，在$ \ sqrt {s} = $ 13 TEV中搜索最终状态下的非共振HIGGS BOSON对生产。
Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at $\sqrt{s} =$ 13 TeV
论文作者
论文摘要
在最终状态下，搜索了通过Gluon-Gluon和Vector Boson融合过程的Higgs Boson对的非共振产生，并提供了两个底部夸克和两个光子。该搜索在$ \ sqrt {s} = $ 13 tev的质量中心能量中使用来自质子 - 普罗顿碰撞的数据，该数据与LHC的CMS检测器记录了$ 13 TEV，对应于137 fb $^{ - 1} $的集成光度。没有观察到与仅背景假设的显着偏差。 Higgs Boson对生产横截面的乘积设置了95％置信度的上限，并将分支分支为$γγ\ Mathrm {B \ overline {b}} $。观察到的（预期）上限确定为0.67（0.45）Fb，对应于标准模型预测的7.7（5.2）倍。迄今为止，此搜索对希格斯玻色子对生产的敏感性最高。假设所有其他Higgs玻色子耦合都等于其在标准模型中的值，则观察到的三线性higgs higgs玻色子自耦合$κ_λ$的耦合修饰符以及一对higgs boson和一对higgs boson和一对vector bosons $ c_ $ c_ $ c_ {$ c} $ 3. $ \ltκ_λ\ lt $ 8.5和$ - $ 1.3 $ \ lt c_ {2 \ mathrm {v}}} \ lt $ 3.5在95％的置信度下。还通过将此分析与搜索单个希格斯玻色子衰减到两个光子的搜索，以及与顶级夸克 - 易夸克对产生的单个希格斯玻色子的搜索，并同时进行$κ__λ$和顶级Quark Yukawa Coupling修饰$κ_t$。
A search for nonresonant production of Higgs boson pairs via gluon-gluon and vector boson fusion processes in final states with two bottom quarks and two photons is presented. The search uses data from proton-proton collisions at a center-of-mass energy of $\sqrt{s} =$ 13 TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb$^{-1}$. No significant deviation from the background-only hypothesis is observed. An upper limit at 95% confidence level is set on the product of the Higgs boson pair production cross section and branching fraction into $γγ\mathrm{b\overline{b}}$. The observed (expected) upper limit is determined to be 0.67 (0.45) fb, which corresponds to 7.7 (5.2) times the standard model prediction. This search has the highest sensitivity to Higgs boson pair production to date. Assuming all other Higgs boson couplings are equal to their values in the standard model, the observed coupling modifiers of the trilinear Higgs boson self-coupling $κ_λ$ and the coupling between a pair of Higgs bosons and a pair of vector bosons $c_{2\mathrm{V}}$ are constrained within the ranges $-$3.3 $\ltκ_λ\lt$ 8.5 and $-$1.3 $\lt c_{2\mathrm{V}}\lt$ 3.5 at 95% confidence level. Constraints on $κ_λ$ are also set by combining this analysis with a search for single Higgs bosons decaying to two photons, produced in association with top quark-antiquark pairs, and by performing a simultaneous fit of $κ_λ$ and the top quark Yukawa coupling modifier $κ_t$.
