Steven Schramm

Malte Algren, Mario Alves Cardoso, Claire Antel, Konstantinos Axiotis, Léon Bozianu, Vilius Cepaitis, Allan Geoffrey Clark, Domenico Della Volpe, Mariia Drozdova, Lukas Ehrke, Didier Ferrere, Stefano Franchellucci, Alexander Froch, Tobias Golling, Sergio Gonzalez Sevilla, Daigo Harada, Giuseppe Iacobucci, Samuel Klein, Pantelis Kontaxakis, Matthew Leigh, Carlos Moreno Martinez, Ivan Oleksiyuk, Lorenzo Paolozzi, Antti Pietari Pirttikoski, Guillaume Quetant, Johnny Raine, Jorge Sabater Iglesias, Steven Schramm, Tomke Schroeer, Debajyoti Sengupta, Anna Sfyrla, Ondrej Theiner, Yusong Tian, Xin Wu and Stefano Zambito

Journal of instrumentation 20 03, P03002 (2025)

In 2022 and 2023, the Large Hadron Collider produced approximately two billion hadronic interactions each second from bunches of protons that collide at a rate of 40 MHz. The ATLAS trigger system is used to reduce this rate to a few kHz for recording. Selections based on hadronic jets, their...

Malte Algren, Mario Alves Cardoso, Claire Antel, Konstantinos Axiotis, Vilius Cepaitis, Allan Geoffrey Clark, Domenico Della Volpe, Mariia Drozdova, Lukas Ehrke, Didier Ferrere, Stefano Franchellucci, Tobias Golling, Sergio Gonzalez Sevilla, Manuel Guth, Daigo Harada, Giuseppe Iacobucci, Merve Lezki, Samuel Klein, Pantelis Kontaxakis, Matthew Leigh, Carlos Moreno Martinez, Herjuno Rah Nindhito, Lorenzo Paolozzi, Antti Pietari Pirttikoski, Guillaume Quetant, Johnny Raine, Jorge Sabater Iglesias, Anuranjan Sarkar, Steven Schramm, Tomke Schroeer, Debajyoti Sengupta, Anna Sfyrla, Ondrej Theiner, Xin Wu and Stefano Zambito

Journal of instrumentation 19 06, P06029 (2024)

The ATLAS trigger system is a crucial component of the ATLAS experiment at the LHC.It is responsible for selecting events in line with the ATLAS physics programme. This paper presentsan overview of the changes to the trigger and data acquisition system during the second longshutdown of the LHC,and...

Malte Algren, Mario Alves Cardoso, Claire Antel, Konstantinos Axiotis, Vilius Cepaitis, Allan Geoffrey Clark, Domenico Della Volpe, Mariia Drozdova, Lukas Ehrke, Didier Ferrere, Stefano Franchellucci, Tobias Golling, Sergio Gonzalez Sevilla, Manuel Guth, Daigo Harada, Giuseppe Iacobucci, Merve Lezki, Samuel Klein, Pantelis Kontaxakis, Matthew Leigh, Carlos Moreno Martinez, Herjuno Rah Nindhito, Lorenzo Paolozzi, Antti Pietari Pirttikoski, Guillaume Quetant, Johnny Raine, Jorge Sabater Iglesias, Steven Schramm, Tomke Schroeer, Debajyoti Sengupta, Anna Sfyrla, Shohei Shirabe, Ondrej Theiner, Xin Wu and Stefano Zambito

The journal of high energy physics 2024, 3 (2024)

A search for R-parity-violating supersymmetry in final states with high jet multiplicity is presented. The search uses 140 fb⁻¹ of proton-proton collision data at √s = 13 TeV collected by the ATLAS experiment during Run 2 of the Large Hadron Collider. The results are interpreted in...

Stefano Bagnasco, Antonella Bozzi, Anastasios Fragkos, Alba Gonzalvez, Steffen Hahn, Gary Hemming, Lia Lavezzi, Paul Laycock, Gonzalo Merino, Silvio Pardi, Steven Schramm, Achim Stahl, Andres Tanasijczuk, Nadia Tonello, Sara Vallero, John Veitch and Patrice Verdier

26th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2023), 04015 (2024)

The discovery of gravitational waves, first observed in September 2015 following the merger of a binary black hole system, has already revolutionised our understanding of the Universe. This was further enhanced in August 2017, when the coalescence of a binary neutron star system was observed both...

Physics letters. B 848, 138400 (2024)

This letter reports the observation of W(ℓν)γγ production in proton-proton collisions. This measurement uses the full Run 2 sample of events recorded at a center-of-mass energy of s=13 TeV by the ATLAS detector at the LHC, corresponding to an integrated luminosity of 140 fb⁻¹....

Physics letters. B 848, 138376 (2024)

The inclusive top-quark-pair production cross section σtt¯ and its ratio to the Z-boson production cross section have been measured in proton–proton collisions at s=13.6 TeV, using 29 fb⁻¹ of data collected in 2022 with the ATLAS experiment at the Large Hadron Collider. Using...

Physics letters. B 848, 138324 (2024)

Semi-visible jets, with a significant contribution to the event's missing transverse momentum, can arise in strongly interacting dark sectors. This results in an event topology where one of the jets can be aligned with the direction of the missing transverse momentum. The first search for...

Physics letters. B 848, 138394 (2024)

This letter presents a search for narrow, high-mass resonances in the Zγ final state with the Z boson decaying into a pair of electrons or muons. The s=13 TeV pp collision data were recorded by the ATLAS detector at the CERN Large Hadron Collider and have an integrated luminosity of 140...