Simplified template cross sections – Stage 1.1 and 1.2

Berger, Nicolas; Bertella, Claudia; Bonanomi, Matteo; Brahimi, Nihal; Calvet, Thomas P.; Calvetti, Milene; Dao, Valerio; Delmastro, Marco; Duehrssen-Debling, Michael; Francavilla, Paolo; Haddad, Yacine; Heim, Sarah; Jovicevic, Jelena; Kivernyk, Oleh; Moreno Llacer, Maria; Langford, Jonathon M.; Li, Changqiao; Marchiori, Giovanni; McFayden, Josh A.; Michel, Johannes K. L.; Milenovic, Predrag; Pandini, Carlo E.; Scott, Edward; Tackmann, Frank J.; Tackmann, Kerstin; Viliani, Lorenzo; Xiao, Meng; Yang, Hongtao

doi:10.21468/SciPostPhysCommRep.15

SciPost Physics Community Reports

Simplified template cross sections – Stage 1.1 and 1.2

Nicolas Berger, Claudia Bertella, Matteo Bonanomi, Nihal Brahimi, Thomas P. Calvet, Milene Calvetti, Valerio Dao, Marco Delmastro, Michael Duehrssen-Debling, Paolo Francavilla, Yacine Haddad, Sarah Heim, Jelena Jovicevic, Oleh Kivernyk, Maria Moreno Llacer, Jonathon M. Langford, Changqiao Li, Giovanni Marchiori, Josh A. McFayden, Johannes K. L. Michel, Predrag Milenovic, Carlo E. Pandini, Edward Scott, Frank J. Tackmann, Kerstin Tackmann, Lorenzo Viliani, Meng Xiao, Hongtao Yang

SciPost Phys. Comm. Rep. 15 (2026) · published 7 January 2026

Part of the Regular Reports Collection in the LHC Higgs Working Group Reports Series.

doi: 10.21468/SciPostPhysCommRep.15
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Abstract

Simplified Template Cross Sections (STXS) have been adopted by the LHC experiments as a common framework for Higgs measurements. Their purpose is to reduce the theoretical uncertainties that are directly folded into the measurements as much as possible, while at the same time allowing for the combination of the measurements between different decay channels as well as between experiments. We report the complete, revised definition of the STXS kinematic bins (stage 1.1 and stage 1.2), which have been used for the measurements by the ATLAS and CMS experiments using the full LHC Run 2 datasets. The main focus is on the four dominant Higgs production processes, namely gluon-fusion, vector-boson fusion, production in association with a vector boson and in association with a $t\bar t$ pair. We also comment briefly on the treatment of other production modes.

TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysCommRep.15
TI  - Simplified template cross sections – Stage 1.1 and 1.2
PY  - 2026/01/07
UR  - https://scipost.org/SciPostPhysCommRep.15
JF  - SciPost Physics Community Reports
JA  - SciPost Phys. Comm. Rep.
SP  - 15
A1  - Berger, Nicolas
AU  - Bertella, Claudia
AU  - Bonanomi, Matteo
AU  - Brahimi, Nihal
AU  - Calvet, Thomas P.
AU  - Calvetti, Milene
AU  - Dao, Valerio
AU  - Delmastro, Marco
AU  - Duehrssen-Debling, Michael
AU  - Francavilla, Paolo
AU  - Haddad, Yacine
AU  - Heim, Sarah
AU  - Jovicevic, Jelena
AU  - Kivernyk, Oleh
AU  - Moreno Llacer, Maria
AU  - Langford, Jonathon M.
AU  - Li, Changqiao
AU  - Marchiori, Giovanni
AU  - McFayden, Josh A.
AU  - Michel, Johannes K. L.
AU  - Milenovic, Predrag
AU  - Pandini, Carlo E.
AU  - Scott, Edward
AU  - Tackmann, Frank J.
AU  - Tackmann, Kerstin
AU  - Viliani, Lorenzo
AU  - Xiao, Meng
AU  - Yang, Hongtao
AB  - Simplified Template Cross Sections (STXS) have been adopted by the LHC experiments as a common framework for Higgs measurements. Their purpose is to reduce the theoretical uncertainties that are directly folded into the measurements as much as possible, while at the same time allowing for the combination of the measurements between different decay channels as well as between experiments. We report the complete, revised definition of the STXS kinematic bins (stage 1.1 and stage 1.2), which have been used for the measurements by the ATLAS and CMS experiments using the full LHC Run 2 datasets. The main focus is on the four dominant Higgs production processes, namely gluon-fusion, vector-boson fusion, production in association with a vector boson and in association with a $t\bar t$ pair. We also comment briefly on the treatment of other production modes.
ER  -

@Article{10.21468/SciPostPhysCommRep.15,
	title={{Simplified template cross sections – Stage 1.1 and 1.2}},
	author={Nicolas Berger and Claudia Bertella and Matteo Bonanomi and Nihal Brahimi and Thomas P. Calvet and Milene Calvetti and Valerio Dao and Marco Delmastro and Michael Duehrssen-Debling and Paolo Francavilla and Yacine Haddad and Sarah Heim and Jelena Jovicevic and Oleh Kivernyk and Maria Moreno Llacer and Jonathon M. Langford and Changqiao Li and Giovanni Marchiori and Josh A. McFayden and Johannes K. L. Michel and Predrag Milenovic and Carlo E. Pandini and Edward Scott and Frank J. Tackmann and Kerstin Tackmann and Lorenzo Viliani and Meng Xiao and Hongtao Yang},
	journal={SciPost Phys. Comm. Rep.},
	pages={15},
	year={2026},
	publisher={SciPost},
	doi={10.21468/SciPostPhysCommRep.15},
	url={https://scipost.org/10.21468/SciPostPhysCommRep.15},
}

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Higgs boson Large Hadron Collider (LHC)

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¹ Nicolas Berger,
² ³ Claudia Bertella,
⁴ Matteo Bonanomi,
¹ Nihal Brahimi,
⁵ Thomas P. Calvet,
⁶ ⁷ Milene Calvetti,
³ Valerio Dao,
¹ Marco Delmastro,
³ Michael Duehrssen-Debling,
⁶ ⁷ Paolo Francavilla,
⁸ Yacine Haddad,
⁴ ⁹ Sarah Heim,
¹⁰ Jelena Jovicevic,
¹ Oleh Kivernyk,
¹¹ ¹² Maria Moreno Llacer,
¹³ Jonathon M. Langford,
¹⁴ Changqiao Li,
¹⁵ ¹⁶ ¹⁷ ¹⁸ Giovanni Marchiori,
¹⁹ Josh A. McFayden,
²⁰ Johannes K. L. Michel,
³ ²¹ Predrag Milenovic,
³ Carlo E. Pandini,
¹³ Edward Scott,
⁹ Frank J. Tackmann,
⁴ ⁹ Kerstin Tackmann,
²² ²³ Lorenzo Viliani,
²⁴ Meng Xiao,
¹⁴ Hongtao Yang

Funders for the research work leading to this publication