Search for signatures of electroweakinos with photons, jets, and large missing transverse momentum in $$ \sqrt{s}=13 $$ TeV pp collisions with the ATLAS detector

A bstract A search for final states characterised by at least one isolated high transverse-momentum photon, jets and large missing transverse momentum is presented. Such a final state might occur in gauge-mediated supersymmetric models where a pair of binos and higgsinos mix to form neutralinos, one of which decays into a photon plus a gravitino while the other decays into a Higgs boson, a Z boson or a photon, plus a gravitino. The search is performed using the full Run-2 data sample of 140 fb − 1 of $$ \sqrt{s}=13 $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>13</mml:mn> </mml:math> TeV proton-proton collisions collected by the ATLAS detector at the Large Hadron Collider. No significant excess of events is observed above the Standard Model prediction and model-dependent exclusion limits at the 95% confidence level are set. These limits are interpreted in terms of the masses of gauginos, which are excluded up to 1.2 TeV depending on their branching ratios, and on their branching ratios as a function of their mass.

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Journal
Journal of High Energy Physics
Published
2026-04-17
DOI
https://doi.org/10.1007/jhep04(2026)150
Primary Topic
Particle physics theoretical and experimental studies
Type
article
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article

Search for signatures of electroweakinos with photons, jets, and large missing transverse momentum in $$ \sqrt{s}=13 $$ TeV pp collisions with the ATLAS detector

A ALOISIO, M ALVIGGI, Y. Afik, H Abramowicz et al.
Journal of High Energy Physics
Particle physics theoretical and experimental studies
article

Search for signatures of electroweakinos with photons, jets, and large missing transverse momentum in $$ \sqrt{s}=13 $$ TeV pp collisions with the ATLAS detector

A ALOISIO, M ALVIGGI, Y. Afik, H Abramowicz, S. Angelidakis, M. Antonelli, K. Abeling, A. Andreazza, M. Aly, F. Alonso, J. S. Allen, S. Aktas, S. Alderweireldt, A. Angerami, Y. Abulaiti, T. Andeen, A. V. Anisenkov, C. Anastopoulos, A. Aikot, B. Aitbenchikh, P. P. Allport, F. Anulli, S. P. Amor Dos Santos, F. Ahmadov, A. Ambler, M. Aoki, M. Algren, S. V. Addepalli, S. Ahuja, N. J. Abicht, P. Albicocco, B. S. Acharya, M. Akbiyik, B. Abbott, C. Allaire, B. M. M. Allbrooke, G. L. Alberghi, T. Alexopoulos, M. Ait Tamlihat, F. Alfonsi, A. Adiguzel, M. Alhroob, D. Akiyama, S. An, A. Amirkhanov, T. Adye, U. Alberti, B. Amini, S. Abdelhameed, A. Alvarez Fernandez, S. W. Alibocus, J. Adelman, I. N. Aleksandrov, K. R. Amos, A. A. Affolder, C. Alpigiani, C. Alexa, E. Aakvaag, A. V. Akimov, A. Annovi, M. Alves Cardoso, M. J. Addison, N. N. Akolkar, Z. M. K. Alsolami, J. F. Allen, B. Ali, C. G. Ames, A. C. Anderson, L. Adamczyk, J. Albert, D. Amperiadou, Z. L. Alegria, M. Aleksa, M. Aliev, C. Amelung, X. Ai, G. L. Albouy, M. Aboelela, T. Amezza, T. P. A. Åkesson, C. Adam Bourdarios, M. Amerl, M. N. Agaras, G. Aielli, A. Ackermann, C. Antel, H. M. J. Ali, J. K. Anders, G. Alimonti, D. Amidei, T. Aoki, A. Aggarwal, S. H. Abidi, E. Antipov, S. Ali, W. Alkakhi, A. Aboulhorma, K. Amirie, G. Aad, C. Agheorghiesei
article en

Abstract

A bstract A search for final states characterised by at least one isolated high transverse-momentum photon, jets and large missing transverse momentum is presented. Such a final state might occur in gauge-mediated supersymmetric models where a pair of binos and higgsinos mix to form neutralinos, one of which decays into a photon plus a gravitino while the other decays into a Higgs boson, a Z boson or a photon, plus a gravitino. The search is performed using the full Run-2 data sample of 140 fb − 1 of $$ \sqrt{s}=13 $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>13</mml:mn> </mml:math> TeV proton-proton collisions collected by the ATLAS detector at the Large Hadron Collider. No significant excess of events is observed above the Standard Model prediction and model-dependent exclusion limits at the 95% confidence level are set. These limits are interpreted in terms of the masses of gauginos, which are excluded up to 1.2 TeV depending on their branching ratios, and on their branching ratios as a function of their mass.

Journal of High Energy PhysicsVol. 2026(4)
Northern Illinois University (US), Institut polytechnique de Grenoble (FR), University of Geneva (CH), University of Rome Tor Vergata (IT), University of Bern (CH), Mohammed V University (MA), Azerbaijan National Academy of Sciences (AZ), Jagiellonian University (PL), California State University System (US), Rutherford Appleton Laboratory (GB), Centre National de la Recherche Scientifique (FR), University of Bonn (DE), Alexandru Ioan Cuza University (RO), High Energy Accelerator Research Organization (JP), University of Liverpool (GB), Waseda University (JP), Consejo Nacional de Investigaciones Científicas y Técnicas (AR), Universitat de València (ES), University of Freiburg (DE), University of Sussex (GB), Tel Aviv University (IL), National Technical University of Athens (GR), Southern Methodist University (US), King's College London (GB), Royal Holloway University of London (GB), University of California, Santa Cruz (US), University of Toronto (CA), Lund University (SE), University of Milan (IT), Johannes Gutenberg University Mainz (DE), TU Dortmund University (DE), National and Kapodistrian University of Athens (GR), Brookhaven National Laboratory (US), University of Washington (US), Université Paris Cité (FR), University of Victoria (CA), Aristotle University of Thessaloniki (GR), Aix-Marseille Université (FR), Heidelberg University (DE), University of Johannesburg (ZA), University of Würzburg (DE), Université Paris-Saclay (FR), University of Michigan (US), LIP - Laboratory of Instrumentation and Experimental Particle Physics (PT), SLAC National Accelerator Laboratory (US), University of Manchester (GB), Zhengzhou University (CN), University of Warwick (GB), Islamic University (BD), University of Chicago (US), Sorbonne Paris Cité (FR), Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering (RO), Istituto Nazionale di Fisica Nucleare, Sezione di Napoli (IT), Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata (IT), FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic (CZ), Oklahoma State University Oklahoma City (US), Barcelona Institute of Science and Technology (ES), Institut National de Physique Nucléaire et de Physique des Particules (FR), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (FR), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (IT), Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Roma I (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Pisa (IT), Institute of Science and Technology, Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Udine, University of Bergen (NO), Czech Technical University in Prague (CZ), McGill University (CA), New York University (US), Stony Brook University (US), European Organization for Nuclear Research (CH), Lancaster University (GB), Istanbul University (TR), AGH University of Krakow (PL), Université Savoie Mont Blanc (FR), University of Göttingen (DE), The University of Tokyo (JP), Columbia University (US), University of Glasgow (GB), University of Birmingham (GB), Ludwig-Maximilians-Universität München (DE), The University of Texas at Austin (US), University of Oklahoma (US), Universidad Nacional de La Plata (AR), Université Grenoble Alpes (FR), University of Sheffield (GB), University of Edinburgh (GB), University of Hassan II Casablanca (MA)
Reduced inequalities
Openalex Percentile: Top 6%
Particle physics theoretical and experimental studies
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