Aveleira Benjamin Campillo, Ridder Aude Gehrmann-De, Preuss Christian T
Institute for Theoretical Physics, ETH, 8093 Zurich, Switzerland.
Institute for Theoretical Physics, KIT, 76131 Karlsruhe, Germany.
Eur Phys J C Part Fields. 2024;84(8):789. doi: 10.1140/epjc/s10052-024-13127-4. Epub 2024 Aug 9.
Jet production from hadronic Higgs decays at future lepton colliders will have significantly different phenomenological implications than jet production via off-shell photon and -boson decays, owing to the fact that Higgs bosons decay to both pairs of quarks and gluons. We compute observables involving flavoured jets in hadronic Higgs decays to three partons at Born level including next-to-leading order corrections in QCD (i.e., up to . The calculation is performed in the framework of an effective theory in which the Higgs boson couples directly to gluons and massless -quarks retaining a non-vanishing Yukawa coupling. For the energy of the leading and subleading flavoured jet, the angular separation and the invariant mass of the leading - pair, we contrast the results obtained in both Higgs-decay categories and using either of the infrared-safe flavoured jet algorithms flavour- and flavour-dressing.
在未来的轻子对撞机中，强子型希格斯玻色子衰变产生的喷注与通过离壳光子和玻色子衰变产生的喷注相比，具有显著不同的唯象学意义，这是因为希格斯玻色子会衰变成夸克对和胶子对。我们计算了在领头阶包括 QCD 次领头阶修正（即高达 ）的情况下，强子型希格斯玻色子衰变到三个部分子过程中涉及带味喷注的可观测量。计算是在一个有效理论框架内进行的，其中希格斯玻色子直接与胶子和无质量夸克耦合，并保留非零的汤川耦合。对于领头和次领头带味喷注的能量、角分离以及领头夸克对的不变质量，我们对比了在两种希格斯衰变类别中以及使用两种红外安全的带味喷注算法（味 和味修饰）所得到的结果。
