Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector
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, Journal Article
Aad, G; Abajyan, T; Abbott, B; Abdallah, J; Abdel Khalek, S; Abdelalim, AA; Abdinov, O; Aben, R; Abi, B; Abolins, M; Abouzeid, OS; Abreu, H ...
Published in: Physical Review D - Particles, Fields, Gravitation and Cosmology
July 1, 2013
A search has been performed for photons originating in the decay of a neutral long-lived particle, exploiting the capabilities of the ATLAS electromagnetic calorimeter to make precise measurements of the flight direction of photons, as well as the calorimeter's excellent time resolution. The search has been made in the diphoton plus missing transverse energy final state, using the full data sample of 4.8 fb-1 of 7 TeV proton-proton collisions collected in 2011 with the ATLAS detector at the LHC. No excess is observed above the background expected from Standard Model processes. The results are used to set exclusion limits in the context of gauge mediated supersymmetry breaking models, with the lightest neutralino being the next-to-lightest supersymmetric particle and decaying with a lifetime in excess of 0.25 ns into a photon and a gravitino. © 2013 CERN.
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Published In
Physical Review D - Particles, Fields, Gravitation and Cosmology
DOI
EISSN
1550-2368
ISSN
1550-7998
Publication Date
July 1, 2013
Volume
88
Issue
1
Related Subject Headings
- Nuclear & Particles Physics
- 5107 Particle and high energy physics
- 5101 Astronomical sciences
- 4902 Mathematical physics
- 0206 Quantum Physics
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0201 Astronomical and Space Sciences
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Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdelalim, A. A., … Arik, E. (2013). Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector. Physical Review D - Particles, Fields, Gravitation and Cosmology, 88(1). https://doi.org/10.1103/PhysRevD.88.012001
Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, O. Abdinov, et al. “Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector.” Physical Review D - Particles, Fields, Gravitation and Cosmology 88, no. 1 (July 1, 2013). https://doi.org/10.1103/PhysRevD.88.012001.
Aad G, Abajyan T, Abbott B, Abdallah J, Abdel Khalek S, Abdelalim AA, et al. Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2013 Jul 1;88(1).
Aad, G., et al. “Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector.” Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 88, no. 1, July 2013. Scopus, doi:10.1103/PhysRevD.88.012001.
Aad G, Abajyan T, Abbott B, Abdallah J, Abdel Khalek S, Abdelalim AA, Abdinov O, Aben R, Abi B, Abolins M, Abouzeid OS, Abramowicz H, Abreu H, Abulaiti Y, Acharya BS, Adamczyk L, Adams DL, Addy TN, Adelman J, Adomeit S, Adye T, Aefsky S, Aguilar-Saavedra JA, Agustoni M, Ahlen SP, Ahles F, Ahmad A, Ahsan M, Aielli G, Åkesson TPA, Akimoto G, Akimov AV, Alam MA, Albert J, Albrand S, Alconada Verzini MJ, Aleksa M, Aleksandrov IN, Alessandria F, Alexa C, Alexander G, Alexandre G, Alexopoulos T, Alhroob M, Aliev M, Alimonti G, Alison J, Allbrooke BMM, Allison LJ, Allport PP, Allwood-Spiers SE, Almond J, Aloisio A, Alon R, Alonso A, Alonso F, Altheimer A, Alvarez Gonzalez B, Alviggi MG, Amako K, Amaral Coutinho Y, Amelung C, Ammosov VV, Amor Dos Santos SP, Amorim A, Amoroso S, Amram N, Anastopoulos C, Ancu LS, Andari N, Andeen T, Anders CF, Anders G, Anderson KJ, Andreazza A, Andrei V, Anduaga XS, Angelidakis S, Anger P, Angerami A, Anghinolfi F, Anisenkov A, Anjos N, Annovi A, Antonaki A, Antonelli M, Antonov A, Antos J, Anulli F, Aoki M, Aperio Bella L, Apolle R, Arabidze G, Aracena I, Arai Y, Arce ATH, Arfaoui S, Arguin JF, Argyropoulos S, Arik E. Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2013 Jul 1;88(1).
Published In
Physical Review D - Particles, Fields, Gravitation and Cosmology
DOI
EISSN
1550-2368
ISSN
1550-7998
Publication Date
July 1, 2013
Volume
88
Issue
1
Related Subject Headings
- Nuclear & Particles Physics
- 5107 Particle and high energy physics
- 5101 Astronomical sciences
- 4902 Mathematical physics
- 0206 Quantum Physics
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0201 Astronomical and Space Sciences