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Ultimate Precision Generation of Recursive Events AT the LHC

Objective

Particle phenomenology has entered the precision era. After the landmark discovery of a Higgs particle at CERN's Large Hadron Collider (LHC), which completes the Standard Model (SM), particle physics stands at a new frontier. Lacking any clear signs of physics beyond the SM (BSM), precision tests have become our best chance to discover new physics at the LHC.

The observation of small deviations from SM predictions demands precision that can be achieved only by highest-accuracy calculations in perturbation theory. Experimental analyses, however, often have to rely on low-accuracy generators to simulate exclusive events as measured in their detectors. The inclusion of state-of-the-art corrections in event simulations is extremely challenging, but it is mandatory to fully exploit LHC data. With innovative theoretical techniques I will master this task with UPGREAT-LHC, achieving the following goals:

- Formulate a new approach to recursively include perturbative corrections in the event generation applicable to any process and at any order in perturbation theory.
- Developing the first next-to-next-to-leading order (NNLO) QCD event simulations that preserve the all-order accuracy of modern parton showers by recursively matching the structure of the shower radiation.
- Achieving, for the first time, state-of-the-art perturbative accuracy in event simulations, by including EW corrections and pushing towards next-to-NNLO (N3LO) in QCD.
- Using these cutting-edge technologies to obtain unprecedented precision in simulations of principal LHC reactions, such as top-quark pair production and decay, Higgs, Drell-Yan and multi-boson production.

UPGREAT-LHC covers a wide range of highly relevant theoretical and phenomenological collider aspects, including precision QCD, resummation, event generation, and LHC phenomenology. Besides its pivotal importance for SM precision tests and indirect searches, UPGREAT-LHC will substantially advance our understanding of collider theory.

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Funding Scheme

HORIZON-ERC - HORIZON ERC Grants

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Call for proposal

(opens in new window) ERC-2025-COG

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Host institution

TECHNISCHE UNIVERSITAT DORTMUND
Net EU contribution
€ 1 998 875,00
Address
AUGUST SCHMIDT STRASSE 4
44227 Dortmund
Germany
Region
Nordrhein-Westfalen Arnsberg Dortmund, Kreisfreie Stadt
Activity type
Higher or Secondary Education Establishments
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Total cost
€ 1 998 875,00

Beneficiaries (1)