论文标题
在四个瘦素中搜索非共振的希格斯玻色子对生产以及$ \ sqrt {s} $ = 13 tev的Proton-Proton碰撞中的两个B射流最终状态
Search for nonresonant Higgs boson pair production in the four leptons plus two b jets final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV
论文作者
论文摘要
首次搜索Higgs Boson对（HH）的非共振产生，其中一个H腐烂成四个Leptons，另一个腐烂成一对B夸克，使用Proton-Proton Collisions通过CMS实验记录在$ \ sqrt {S} $ = 13 TEV的质子质量碰撞中。分析的数据对应于138 fb $^{ - 1} $的集成光度。信号强度修改器$μ$设定了95％的置信度上限为32.4，定义为HH $ \ \ $ \ \ ZZ*B $ \ MATHRM {\ bar {b}} $ $ \ $ $ \ $ \ $ \ $ 4 $ B $ \ b $ \ b $ \ mathrm {candy}的比率研究了相对于标准模型（SM）值的H三线耦合$λ_\ text {hhh} $的可能修改。耦合修饰符$κ_λ$定义为$λ_\ text {hhh} $除以SM预测，在95％的置信度下，被限制在观察到的（预期）范围-8.8（预期）范围-8.8（-9.8）$ <$ <$ <$ <$ <$ <$ <$ <$ <$ <$ <$ <$ <$ <$ <$ 13.4（15.0）。
The first search for nonresonant production of Higgs boson pairs (HH) with one H decaying into four leptons and the other into a pair of b quarks is presented, using proton-proton collisions recorded at a center-of-mass energy of $\sqrt{s}$ = 13 TeV by the CMS experiment. The analyzed data correspond to an integrated luminosity of 138 fb$^{-1}$. A 95% confidence level upper limit of 32.4 is set on the signal strength modifier $μ$, defined as the ratio of the observed HH production rate in the HH $\to$ ZZ*b$\mathrm{\bar{b}}$ $\to$ 4$\ell$b$\mathrm{\bar{b}}$ decay channel to the standard model expectation. Possible modifications of the H trilinear coupling $λ_\text{HHH}$ with respect to the standard model (SM) value are investigated. The coupling modifier $κ_λ$, defined as $λ_\text{HHH}$ divided by its SM prediction, is constrained to be within the observed (expected) range -8.8 (-9.8) $<$ $κ_λ$ $<$ 13.4 (15.0) at 95% confidence level.
