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Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC

Publication ,  Journal Article
Aad, G; Abbott, B; Abdallah, J; Abdelalim, AA; Abdesselam, A; Abdinov, O; Abi, B; Abolins, M; Abramowicz, H; Abreu, H; Acerbi, E; Acharya, BS ...
Published in: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
June 27, 2011
Published version (DOI)

Hitherto unobserved long-lived massive particles with electric and/or colour charge are predicted by a range of theories which extend the Standard Model. In this Letter a search is performed at the ATLAS experiment for slow-moving charged particles produced in proton–proton collisions at 7 TeV centre-of-mass energy at the LHC, using a data-set corresponding to an integrated luminosity of 34 pb−1. No deviations from Standard Model expectations are found. This result is interpreted in a framework of supersymmetry models in which coloured sparticles can hadronise into long-lived bound hadronic states, termed R-hadrons, and 95% CL limits are set on the production cross-sections of squarks and gluinos. The influence of R-hadron interactions in matter was studied using a number of different models, and lower mass limits for stable sbottoms and stops are found to be 294 and 309 GeV respectively. The lower mass limit for a stable gluino lies in the range from 562 to 586 GeV depending on the model assumed. Each of these constraints is the most stringent to date.

Duke Scholars

Ayana T. Arce
Author Ayana T. Arce Physics
Seog Oh
Author Seog Oh Physics
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Published In

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

DOI

10.1016/j.physletb.2011.05.010

ISSN

0370-2693

Publication Date

June 27, 2011

Volume

701

Issue

1

Start / End Page

1 / 19

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
  • 0105 Mathematical Physics
 

Citation

APA
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ICMJE
MLA
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Aad, G., Abbott, B., Abdallah, J., Abdelalim, A. A., Abdesselam, A., Abdinov, O., … Åsman, B. (2011). Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 701(1), 1–19. https://doi.org/10.1016/j.physletb.2011.05.010
Aad, G., B. Abbott, J. Abdallah, A. A. Abdelalim, A. Abdesselam, O. Abdinov, B. Abi, et al. “Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 701, no. 1 (June 27, 2011): 1–19. https://doi.org/10.1016/j.physletb.2011.05.010.
Aad G, Abbott B, Abdallah J, Abdelalim AA, Abdesselam A, Abdinov O, et al. Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2011 Jun 27;701(1):1–19.
Aad, G., et al. “Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 701, no. 1, June 2011, pp. 1–19. Scopus, doi:10.1016/j.physletb.2011.05.010.
Aad G, Abbott B, Abdallah J, Abdelalim AA, Abdesselam A, Abdinov O, Abi B, Abolins M, Abramowicz H, Abreu H, Acerbi E, Acharya BS, Adams DL, Addy TN, Adelman J, Aderholz M, Adomeit S, Adragna P, Adye T, Aefsky S, Aguilar-Saavedra JA, Aharrouche M, Ahlen SP, Ahles F, Ahmad A, Ahsan M, Aielli G, Akdogan T, Åkesson TP, Akimoto G, Akimov AV, Alam MS, Alam MA, Albrand S, Aleksa M, Aleksandrov IN, Aleppo M, Alessandria F, Alexa C, Alexander G, Alexandre G, Alexopoulos T, Alhroob M, Aliev M, Alimonti G, Alison J, Aliyev M, Allport PP, Allwood-Spiers SE, Almond J, Aloisio A, Alon R, Alonso A, Alviggi MG, Amako K, Amaral P, Amelung C, Ammosov VV, Amorim A, Amorós G, Amram N, Anastopoulos C, Andeen T, Anders CF, Anderson KJ, Andreazza A, Andrei V, Andrieux ML, Anduaga XS, Angerami A, Anghinolfi F, Anjos N, Annovi A, Antonaki A, Antonelli M, Antonelli S, Antos J, Anulli F, Aoun S, Bella LA, Apolle R, Arabidze G, Aracena I, Arai Y, Arce ATH, Archambault JP, Arfaoui S, Arguin JF, Arik E, Arik M, Armbruster AJ, Arnaez O, Arnault C, Artamonov A, Artoni G, Arutinov D, Asai S, Asfandiyarov R, Ask S, Åsman B. Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2011 Jun 27;701(1):1–19.
Journal cover image

Published In

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

DOI

10.1016/j.physletb.2011.05.010

ISSN

0370-2693

Publication Date

June 27, 2011

Volume

701

Issue

1

Start / End Page

1 / 19

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
  • 0105 Mathematical Physics