| Title: |
Search for Beyond the Standard Model physics with anomaly detection in multilepton final states in pp collisions at s=13TeV with the ATLAS detector |
| Authors: |
Aad, G; Aakvaag, E; Abbott, B; Abdelhameed, S; Abeling, K; Abicht, NJ; Abidi, SH; Aboelela, M; Aboulhorma, A; Abramowicz, H; Abulaiti, Y; Acharya, BS; Ackermann, A; Bourdarios, C Adam; Adamczyk, L; Addepalli, SV; Addison, MJ; Adelman, J; Adiguzel, A; Adye, T; Affolder, AA; Afik, Y; Agaras, MN; Aggarwal, A; Agheorghiesei, C; Ahmadov, F; Ahuja, S; Ai, X; Aielli, G; Aikot, A; Tamlihat, M Ait; Aitbenchikh, B; Akbiyik, M; Åkesson, TPA; Akimov, AV; Akiyama, D; Akolkar, NN; Aktas, S; Alberghi, GL; Albert, J; Alberti, U; Albicocco, P; Albouy, GL; Alderweireldt, S; Alegria, ZL; Aleksa, M; Aleksandrov, IN; Alexa, C; Alexopoulos, T; Alfonsi, F; Algren, M; Alhroob, M; Ali, B; Ali, HMJ; Ali, S; Alibocus, SW; Aliev, M; Alimonti, G; Alkakhi, W; Allaire, C; Allbrooke, BMM; Allen, DR; Allen, JS; Allen, JF; Allport, PP; Aloisio, A; Alonso, F; Alpigiani, C; Alsolami, ZMK; Fernandez, A Alvarez; Cardoso, M Alves; Alviggi, MG; Aly, M; Coutinho, Y Amaral; Ambler, A; Amelung, C; Amerl, M; Ames, CG; Amezza, T; Amidei, D; Amini, B; Amirie, K; Amirkhanov, A; Dos Santos, SP Amor; Amos, KR; Amperiadou, D; An, S; Anastopoulos, C; Andeen, T; Anders, JK; Anderson, AC; Andreazza, A; Angelidakis, S; Angerami, A; Anisenkov, AV; Annovi, A; Antel, C; Antipov, E; Antonelli, M |
| Source: |
European Physical Journal C, vol 86, iss 3 |
| Publisher Information: |
eScholarship, University of California |
| Publication Year: |
2026 |
| Collection: |
University of California: eScholarship |
| Subject Terms: |
5106 Nuclear and Plasma Physics (for-2020); 5107 Particle and High Energy Physics (for-2020); 51 Physical Sciences (for-2020); Networking and Information Technology R&D (NITRD) (rcdc); Machine Learning and Artificial Intelligence (rcdc); 0202 Atomic; Molecular; Nuclear; Particle and Plasma Physics (for); 0206 Quantum Physics (for); Nuclear & Particles Physics (science-metrix); 5101 Astronomical sciences (for-2020); 5102 Atomic; molecular and optical physics (for-2020) |
| Description: |
A model-agnostic search for Beyond the Standard Model physics is presented, targeting final states with at least four light leptons (electrons or muons). The search regions are separated by event topology and unsupervised machine learning is used to identify anomalous events in the full 140fb-1$$^{-1}$$ of proton–proton collision data collected with the ATLAS detector during Run 2. No significant excess above the Standard Model background expectation is observed. Model-agnostic limits are presented in each topology, along with limits on several benchmark models including vector-like leptons, wino-like charginos and neutralinos, or smuons. Limits are set on the flavourful vector-like lepton model for the first time. |
| Document Type: |
article in journal/newspaper |
| Language: |
unknown |
| Relation: |
qt5bq0x1w6; https://escholarship.org/uc/item/5bq0x1w6 |
| DOI: |
10.1140/epjc/s10052-025-15218-2 |
| Availability: |
https://escholarship.org/uc/item/5bq0x1w6; https://doi.org/10.1140/epjc/s10052-025-15218-2 |
| Rights: |
CC-BY-NC |
| Accession Number: |
edsbas.B64B7DA8 |
| Database: |
BASE |