Search for displaced vertices arising from decays of new heavy particles in 7 TeV pp collisions at ATLAS

G. Aad; Mogens Dam; Jørgen Beck Hansen; Peter Henrik Hansen; John Renner Hansen; Jørn Dines Hansen; Simon Johann Franz Heisterkamp; Nele Maria Philomena Boelaert; Morten Dam Jørgensen; Esben Bryndt Klinkby; Sascha Mehlhase; Björn Stefan Nilsson; Troels Christian Petersen; Stefania Xella

doi:10.1016/j.physletb.2011.12.057

Search for displaced vertices arising from decays of new heavy particles in 7 TeV pp collisions at ATLAS

G. Aad, Mogens Dam, Jørgen Beck Hansen, Peter Henrik Hansen, John Renner Hansen, Jørn Dines Hansen, Simon Johann Franz Heisterkamp, Nele Maria Philomena Boelaert, Morten Dam Jørgensen, Esben Bryndt Klinkby, Sascha Mehlhase, Björn Stefan Nilsson, Troels Christian Petersen, Stefania Xella

49 Citationer (Scopus)

Abstract

We present the results of a search for new, heavy particles that decay at a significant distance from their production point into a final state containing charged hadrons in association with a high-momentum muon. The search is conducted in a pp-collision data sample with a center-of-mass energy of 7 TeV and an integrated luminosity of 33 pb^-1 collected in 2010 by the ATLAS detector operating at the Large Hadron Collider. Production of such particles is expected in various scenarios of physics beyond the standard model. We observe no signal and place limits on the production cross-section of supersymmetric particles in an R-parity-violating scenario as a function of the neutralino lifetime. Limits are presented for different squark and neutralino masses, enabling extension of the limits to a variety of other models.

Originalsprog	Engelsk
Tidsskrift	Physics Letters B
Vol/bind	707
Udgave nummer	5
Sider (fra-til)	478-496
Antal sider	18
ISSN	0370-2693
DOI	https://doi.org/10.1016/j.physletb.2011.12.057
Status	Udgivet - 7 feb. 2012

Adgang til dokumentet

10.1016/j.physletb.2011.12.057

Citationsformater

Aad, G., Dam, M., Hansen, J. B., Hansen, P. H., Hansen, J. R., Hansen, J. D., Heisterkamp, S. J. F., Boelaert, N. M. P., Jørgensen, M. D., Klinkby, E. B., Mehlhase, S., Nilsson, B. S., Petersen, T. C., & Xella, S. (2012). Search for displaced vertices arising from decays of new heavy particles in 7 TeV pp collisions at ATLAS. Physics Letters B, 707(5), 478-496. https://doi.org/10.1016/j.physletb.2011.12.057

Aad, G, Dam, M , Hansen, JB , Hansen, PH , Hansen, JR , Hansen, JD, Heisterkamp, SJF, Boelaert, NMP, Jørgensen, MD, Klinkby, EB, Mehlhase, S, Nilsson, BS, Petersen, TC & Xella, S 2012, 'Search for displaced vertices arising from decays of new heavy particles in 7 TeV pp collisions at ATLAS', Physics Letters B, bind 707, nr. 5, s. 478-496. https://doi.org/10.1016/j.physletb.2011.12.057

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abstract = "We present the results of a search for new, heavy particles that decay at a significant distance from their production point into a final state containing charged hadrons in association with a high-momentum muon. The search is conducted in a pp-collision data sample with a center-of-mass energy of 7 TeV and an integrated luminosity of 33 pb-1 collected in 2010 by the ATLAS detector operating at the Large Hadron Collider. Production of such particles is expected in various scenarios of physics beyond the standard model. We observe no signal and place limits on the production cross-section of supersymmetric particles in an R-parity-violating scenario as a function of the neutralino lifetime. Limits are presented for different squark and neutralino masses, enabling extension of the limits to a variety of other models.",

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AU - Aad, G.

AU - Dam, Mogens

AU - Hansen, Jørgen Beck

AU - Hansen, Peter Henrik

AU - Hansen, John Renner

AU - Hansen, Jørn Dines

AU - Heisterkamp, Simon Johann Franz

AU - Boelaert, Nele Maria Philomena

AU - Jørgensen, Morten Dam

AU - Klinkby, Esben Bryndt

AU - Mehlhase, Sascha

AU - Nilsson, Björn Stefan

AU - Petersen, Troels Christian

AU - Xella, Stefania

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N2 - We present the results of a search for new, heavy particles that decay at a significant distance from their production point into a final state containing charged hadrons in association with a high-momentum muon. The search is conducted in a pp-collision data sample with a center-of-mass energy of 7 TeV and an integrated luminosity of 33 pb-1 collected in 2010 by the ATLAS detector operating at the Large Hadron Collider. Production of such particles is expected in various scenarios of physics beyond the standard model. We observe no signal and place limits on the production cross-section of supersymmetric particles in an R-parity-violating scenario as a function of the neutralino lifetime. Limits are presented for different squark and neutralino masses, enabling extension of the limits to a variety of other models.

AB - We present the results of a search for new, heavy particles that decay at a significant distance from their production point into a final state containing charged hadrons in association with a high-momentum muon. The search is conducted in a pp-collision data sample with a center-of-mass energy of 7 TeV and an integrated luminosity of 33 pb-1 collected in 2010 by the ATLAS detector operating at the Large Hadron Collider. Production of such particles is expected in various scenarios of physics beyond the standard model. We observe no signal and place limits on the production cross-section of supersymmetric particles in an R-parity-violating scenario as a function of the neutralino lifetime. Limits are presented for different squark and neutralino masses, enabling extension of the limits to a variety of other models.

U2 - 10.1016/j.physletb.2011.12.057

DO - 10.1016/j.physletb.2011.12.057

M3 - Journal article

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EP - 496

JO - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology

JF - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology

IS - 5

ER -

Search for displaced vertices arising from decays of new heavy particles in 7 TeV pp collisions at ATLAS

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