Scholarlink

<p>We study the impact of the two-loop corrections controlled by the BSM Higgs couplings on the cross section for the production of a pair of SM-like Higgs bosons via gluon fusion in the aligned THDM. To this aim, we reassess the two-loop calculation of <i>λ</i><sub><i>hhh</i></sub>, we compute for the first time the two-loop corrections to <i>λ</i><sub><i>hhH</i></sub>, and we include the relevant corrections to the Higgs-gluon couplings and to the <i>s</i>-channel propagators entering the <i>gg</i> → <i>hh</i> amplitude. We discuss the numerical impact of the two-loop BSM contributions, first on the individual couplings and then on the prediction for the pair-production cross section, in two benchmark scenarios for the aligned THDM.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Two-loop BSM contributions to Higgs pair production in the aligned THDM

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年1月7日

查看全文
  • Giuseppe Degrassi,
  • Ramona Gröber,
  • Pietro Slavich

摘要

We study the impact of the two-loop corrections controlled by the BSM Higgs couplings on the cross section for the production of a pair of SM-like Higgs bosons via gluon fusion in the aligned THDM. To this aim, we reassess the two-loop calculation of λhhh, we compute for the first time the two-loop corrections to λhhH, and we include the relevant corrections to the Higgs-gluon couplings and to the s-channel propagators entering the gg → hh amplitude. We discuss the numerical impact of the two-loop BSM contributions, first on the individual couplings and then on the prediction for the pair-production cross section, in two benchmark scenarios for the aligned THDM.