Trigger studies for the search of Higgs boson pair production in the ATLAS experiment

被引：1

作者：

Fiacco, D. ^{[1
,2
]}

机构：

[1] Univ Roma La Sapienza, Dipartimento Fis, Rome, Italy

[2] INFN, Sez Roma, Rome, Italy

来源：

NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS | 2024年 / 47卷 / 03期

关键词：

D O I：

10.1393/ncc/i2024-24118-8

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The estimation of the Higgs boson self-coupling is possible at the Large-Hadron Collider studying di-Higgs events. The full Run 2 data-taking period reached an integrated luminosity of 140 fb-1, that is expected to at least double at the end of the ongoing Run 3 of the LHC, but given the small di-Higgs production cross-section, much higher data statistics is expected to be needed to observe this process from the simple extrapolation of the current results. For this reason, improvements in the signal acceptance and efficiency, starting from improvements in the trigger selections, are crucial to reduce the amount of data needed for this measurement. The preliminary results of an ongoing study to find the best tradeoff between acceptance in the bb tau tau channel and the total trigger rate, at both the Level-1 and High Level triggers of the ATLAS experiment will be presented. In particular the latest results of the optimization, and its possible future upgrades, will be discussed as part of the ATLAS global effort to increase the sensitivity to the Higgs boson self-coupling measurements.

引用

页数：4

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