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

G Aad; Hardeep Bansil; Juraj Bracinik; David Charlton; Christopher Curtis; John Dowell; John Garvey; David Hadley; Karl Harrison; Christopher Hawkes; Simon Head; Stephen Hillier; G Mahout; Timothy Martin; Thomas McLaughlan; Paul Newman; Jody Palmer; Mark Slater; Jurgen Thomas; Paul Thompson; Peter Watkins; Alan Watson; Miriam Watson; John Wilson; NJ Collins; JN Lilley

doi:10.1016/j.physletb.2011.05.010

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

G Aad, Hardeep Bansil, Juraj Bracinik, David Charlton, Christopher Curtis, John Dowell, John Garvey, David Hadley, Karl Harrison, Christopher Hawkes, Simon Head, Stephen Hillier, G Mahout, Timothy Martin, Thomas McLaughlan, Paul Newman, Jody Palmer, Mark Slater, Jurgen Thomas, Paul ThompsonPeter Watkins, Alan Watson, Miriam Watson, John Wilson, NJ Collins, JN Lilley

Physics and Astronomy

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Abstract

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. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	1-19
Number of pages	19
Journal	Physics Letters B
Volume	701
Issue number	1
DOIs	https://doi.org/10.1016/j.physletb.2011.05.010
Publication status	Published - 1 Jun 2011

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10.1016/j.physletb.2011.05.010

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Aad, G., Bansil, H., Bracinik, J., Charlton, D., Curtis, C., Dowell, J., Garvey, J., Hadley, D., Harrison, K., Hawkes, C., Head, S., Hillier, S., Mahout, G., Martin, T., McLaughlan, T., Newman, P., Palmer, J., Slater, M., Thomas, J., ... Lilley, JN. (2011). Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC. Physics Letters B, 701(1), 1-19. https://doi.org/10.1016/j.physletb.2011.05.010

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title = "Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC",

abstract = "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. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.",

author = "G Aad and Hardeep Bansil and Juraj Bracinik and David Charlton and Christopher Curtis and John Dowell and John Garvey and David Hadley and Karl Harrison and Christopher Hawkes and Simon Head and Stephen Hillier and G Mahout and Timothy Martin and Thomas McLaughlan and Paul Newman and Jody Palmer and Mark Slater and Jurgen Thomas and Paul Thompson and Peter Watkins and Alan Watson and Miriam Watson and John Wilson and NJ Collins and JN Lilley",

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doi = "10.1016/j.physletb.2011.05.010",

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Aad, G, Bansil, H, Bracinik, J , Charlton, D, Curtis, C, Dowell, J, Garvey, J, Hadley, D, Harrison, K, Hawkes, C, Head, S, Hillier, S, Mahout, G, Martin, T, McLaughlan, T, Newman, P, Palmer, J, Slater, M , Thomas, J , Thompson, P, Watkins, P, Watson, A , Watson, M, Wilson, J, Collins, NJ & Lilley, JN 2011, 'Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC', Physics Letters B, vol. 701, no. 1, pp. 1-19. https://doi.org/10.1016/j.physletb.2011.05.010

TY - JOUR

T1 - Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC

AU - Aad, G

AU - Bansil, Hardeep

AU - Bracinik, Juraj

AU - Charlton, David

AU - Curtis, Christopher

AU - Dowell, John

AU - Garvey, John

AU - Hadley, David

AU - Harrison, Karl

AU - Hawkes, Christopher

AU - Head, Simon

AU - Hillier, Stephen

AU - Mahout, G

AU - Martin, Timothy

AU - McLaughlan, Thomas

AU - Newman, Paul

AU - Palmer, Jody

AU - Slater, Mark

AU - Thomas, Jurgen

AU - Thompson, Paul

AU - Watkins, Peter

AU - Watson, Alan

AU - Watson, Miriam

AU - Wilson, John

AU - Collins, NJ

AU - Lilley, JN

PY - 2011/6/1

Y1 - 2011/6/1

N2 - 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. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.

AB - 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. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.

U2 - 10.1016/j.physletb.2011.05.010

DO - 10.1016/j.physletb.2011.05.010

M3 - Article

VL - 701

SP - 1

EP - 19

JO - Physics Letters B

JF - Physics Letters B

IS - 1

ER -

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

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