PMID- 28943782 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220219 IS - 1434-6044 (Print) IS - 1434-6052 (Electronic) IS - 1434-6044 (Linking) VI - 77 IP - 4 DP - 2017 TI - The BSM-AI project: SUSY-AI-generalizing LHC limits on supersymmetry with machine learning. PG - 257 LID - 10.1140/epjc/s10052-017-4814-9 [doi] LID - 257 AB - A key research question at the Large Hadron Collider is the test of models of new physics. Testing if a particular parameter set of such a model is excluded by LHC data is a challenge: it requires time consuming generation of scattering events, simulation of the detector response, event reconstruction, cross section calculations and analysis code to test against several hundred signal regions defined by the ATLAS and CMS experiments. In the BSM-AI project we approach this challenge with a new idea. A machine learning tool is devised to predict within a fraction of a millisecond if a model is excluded or not directly from the model parameters. A first example is SUSY-AI, trained on the phenomenological supersymmetric standard model (pMSSM). About 300, 000 pMSSM model sets - each tested against 200 signal regions by ATLAS - have been used to train and validate SUSY-AI. The code is currently able to reproduce the ATLAS exclusion regions in 19 dimensions with an accuracy of at least [Formula: see text]. It has been validated further within the constrained MSSM and the minimal natural supersymmetric model, again showing high accuracy. SUSY-AI and its future BSM derivatives will help to solve the problem of recasting LHC results for any model of new physics. SUSY-AI can be downloaded from http://susyai.hepforge.org/. An on-line interface to the program for quick testing purposes can be found at http://www.susy-ai.org/. FAU - Caron, Sascha AU - Caron S AD - Institute for Mathematics, Astro- and Particle Physics IMAPP, Radboud Universiteit, Nijmegen, The Netherlands. ISNI: 0000000122931605. GRID: grid.5590.9 AD - Nikhef, Amsterdam, The Netherlands. ISNI: 0000 0004 0646 2193. GRID: grid.420012.5 FAU - Kim, Jong Soo AU - Kim JS AD - Instituto de Fisica Teorica, UAM/CSIC, Madrid, Spain. FAU - Rolbiecki, Krzysztof AU - Rolbiecki K AD - Instituto de Fisica Teorica, UAM/CSIC, Madrid, Spain. AD - Faculty of Physics, University of Warsaw, Warsaw, Poland. ISNI: 0000 0004 1937 1290. GRID: grid.12847.38 FAU - de Austri, Roberto Ruiz AU - de Austri RR AD - Instituto de Fisica Corpuscular, IFIC-UV/CSIC, Valencia, Spain. FAU - Stienen, Bob AU - Stienen B AD - Institute for Mathematics, Astro- and Particle Physics IMAPP, Radboud Universiteit, Nijmegen, The Netherlands. ISNI: 0000000122931605. GRID: grid.5590.9 LA - eng PT - Journal Article DEP - 20170424 PL - France TA - Eur Phys J C Part Fields JT - The European physical journal. C, Particles and fields JID - 101622319 PMC - PMC5586744 EDAT- 2017/09/26 06:00 MHDA- 2017/09/26 06:01 PMCR- 2017/04/24 CRDT- 2017/09/26 06:00 PHST- 2016/06/22 00:00 [received] PHST- 2017/04/07 00:00 [accepted] PHST- 2017/09/26 06:00 [entrez] PHST- 2017/09/26 06:00 [pubmed] PHST- 2017/09/26 06:01 [medline] PHST- 2017/04/24 00:00 [pmc-release] AID - 4814 [pii] AID - 10.1140/epjc/s10052-017-4814-9 [doi] PST - ppublish SO - Eur Phys J C Part Fields. 2017;77(4):257. doi: 10.1140/epjc/s10052-017-4814-9. Epub 2017 Apr 24.