Search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s=7 TeV with 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
January 4, 2013
A search for nonresonant new phenomena, originating from either contact interactions or large extra spatial dimensions, has been carried out using events with two isolated electrons or muons. These events, produced at the LHC in proton-proton collisions at √s=7 TeV, were recorded by the ATLAS detector. The data sample, collected throughout 2011, corresponds to an integrated luminosity of 4.9 and 5.0 fb-1 in the e+e - and μ+μ- channels, respectively. No significant deviations from the Standard Model expectation are observed. Using a Bayesian approach, 95% confidence level lower limits ranging from 9.0 to 13.9 TeV are placed on the energy scale of ℓℓqq contact interactions in the left-left isoscalar model. Lower limits ranging from 2.4 to 3.9 TeV are also set on the string scale in large extra dimension models. After combining these limits with results from a similar search in the diphoton channel, slightly more stringent limits are obtained.
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Published In
Physical Review D - Particles, Fields, Gravitation and Cosmology
DOI
EISSN
1550-2368
ISSN
1550-7998
Publication Date
January 4, 2013
Volume
87
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 contact interactions and large extra dimensions in dilepton events from pp collisions at √s=7 TeV with the ATLAS detector. Physical Review D - Particles, Fields, Gravitation and Cosmology, 87(1). https://doi.org/10.1103/PhysRevD.87.015010
Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, O. Abdinov, et al. “Search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s=7 TeV with the ATLAS detector.” Physical Review D - Particles, Fields, Gravitation and Cosmology 87, no. 1 (January 4, 2013). https://doi.org/10.1103/PhysRevD.87.015010.
Aad G, Abajyan T, Abbott B, Abdallah J, Abdel Khalek S, Abdelalim AA, et al. Search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s=7 TeV with the ATLAS detector. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2013 Jan 4;87(1).
Aad, G., et al. “Search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s=7 TeV with the ATLAS detector.” Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 87, no. 1, Jan. 2013. Scopus, doi:10.1103/PhysRevD.87.015010.
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, Acharya BS, Adamczyk L, Adams DL, Addy TN, Adelman J, Adomeit S, Adragna P, Adye T, Aefsky S, Aguilar-Saavedra JA, Agustoni M, Aharrouche M, Ahlen SP, Ahles F, Ahmad A, Ahsan M, Aielli G, Åkesson TPA, Akimoto G, Akimov AV, Alam MS, Alam MA, Albert J, Albrand S, Aleksa M, Aleksandrov IN, Alessandria F, Alexa C, Alexander G, Alexandre G, Alexopoulos T, Alhroob M, Aliev M, Alimonti G, Alison J, Allbrooke BMM, Allport PP, Allwood-Spiers SE, Almond J, Aloisio A, Alon R, Alonso A, Alonso F, Altheimer A, Alvarez Gonzalez B, Alviggi MG, Amako K, Amelung C, Ammosov VV, Amor Dos Santos SP, Amorim A, Amram N, Anastopoulos C, Ancu LS, Andari N, Andeen T, Anders CF, Anders G, Anderson KJ, Andreazza A, Andrei V, Andrieux ML, 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, Aoun S, Aperio Bella L, Apolle R, Arabidze G, Aracena I, Arai Y, Arce ATH, Arfaoui S, Arguin JF, Argyropoulos S, Arik E. Search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s=7 TeV with the ATLAS detector. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2013 Jan 4;87(1).
Published In
Physical Review D - Particles, Fields, Gravitation and Cosmology
DOI
EISSN
1550-2368
ISSN
1550-7998
Publication Date
January 4, 2013
Volume
87
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