Search for heavy stable charged particles in pp collisions at √s = 7 TeV

The CMS Collaboration

doi:10.1007/JHEP03(2011)024

Search for heavy stable charged particles in pp collisions at √s = 7 TeV

The CMS Collaboration

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

52 Scopus citations

Abstract

The result of a search at the LHC for heavy stable charged particles produced in pp collisions at √s = 7TeV is described. The data sample was collected with the CMS detector and corresponds to an integrated luminosity of 3:1 pb-1. Momentum and ionization-energy-loss measurements in the inner tracker detector are used to identify tracks compatible with heavy slow-moving particles. Additionally, tracks passing muon identification requirements are also analyzed for the same signature. In each case, no candidate passes the selection, with an expected background of less than 0:1 events. A lower limit at the 95% confidence level on the mass of a stable gluino is set at 398 GeV/c², using a conventional model of nuclear interactions that allows charged hadrons containing this particle to reach the muon detectors. A lower limit of 311 GeV/c² is also set for a stable gluino in a conservative scenario of complete charge suppression, where any hadron containing this particle becomes neutral before reaching the muon detectors.

Original language	English (US)
Article number	24
Journal	Journal of High Energy Physics
Volume	2011
Issue number	3
DOIs	https://doi.org/10.1007/JHEP03(2011)024
State	Published - 2011

Bibliographical note

Funding Information:
Funding: this study was supported by the National Institute of Dental and Craniofacial Research at the National Institute of Health [DE025726 and DE023838 to S. Cha, and T90DE021990 to M. Mona], and the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education [2015R1D1A1A01060468 to Y.J. Lee]. Competing interests: none declared.

Keywords

Hadron-Hadron scattering

Publisher link

10.1007/JHEP03(2011)024

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@article{89b093d357094eb3be0221ba8ef20cd1,

title = "Search for heavy stable charged particles in pp collisions at √s = 7 TeV",

abstract = "The result of a search at the LHC for heavy stable charged particles produced in pp collisions at √s = 7TeV is described. The data sample was collected with the CMS detector and corresponds to an integrated luminosity of 3:1 pb-1. Momentum and ionization-energy-loss measurements in the inner tracker detector are used to identify tracks compatible with heavy slow-moving particles. Additionally, tracks passing muon identification requirements are also analyzed for the same signature. In each case, no candidate passes the selection, with an expected background of less than 0:1 events. A lower limit at the 95% confidence level on the mass of a stable gluino is set at 398 GeV/c2, using a conventional model of nuclear interactions that allows charged hadrons containing this particle to reach the muon detectors. A lower limit of 311 GeV/c2 is also set for a stable gluino in a conservative scenario of complete charge suppression, where any hadron containing this particle becomes neutral before reaching the muon detectors.",

keywords = "Hadron-Hadron scattering",

author = "{The CMS Collaboration} and V. Khachatryan and Sirunyan, {A. M.} and A. Tumasyan and W. Adam and T. Bergauer and M. Dragicevic and J. Er{\"o} and C. Fabjan and M. Friedl and R. Fr{\"u}hwirth and Ghete, {V. M.} and J. Hammer and S. H{\"a}nsel and C. Hartl and M. Hoch and N. H{\"o}rmann and J. Hrubec and M. Jeitler and G. Kasieczka and W. Kiesenhofer and M. Krammer and D. Liko and I. Mikulec and M. Pernicka and H. Rohringer and R. Sch{\"o}fbeck and J. Strauss and A. Taurok and F. Teischinger and W. Waltenberger and G. Walzel and E. Widl and Wulz, {C. E.} and V. Mossolov and N. Shumeiko and {Suarez Gonzalez}, J. and L. Benucci and L. Ceard and K. Cerny and {De Wolf}, {E. A.} and X. Janssen and T. Maes and L. Mucibello and S. Ochesanu and B. Roland and R. Rougny and M. Selvaggi and {Van Haevermaet}, H. and Y. Kubota and J. Mans",

note = "Funding Information: Funding: this study was supported by the National Institute of Dental and Craniofacial Research at the National Institute of Health [DE025726 and DE023838 to S. Cha, and T90DE021990 to M. Mona], and the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education [2015R1D1A1A01060468 to Y.J. Lee]. Competing interests: none declared.",

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doi = "10.1007/JHEP03(2011)024",

language = "English (US)",

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AU - The CMS Collaboration

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Fabjan, C.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hammer, J.

AU - Hänsel, S.

AU - Hartl, C.

AU - Hoch, M.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Kasieczka, G.

AU - Kiesenhofer, W.

AU - Krammer, M.

AU - Liko, D.

AU - Mikulec, I.

AU - Pernicka, M.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Taurok, A.

AU - Teischinger, F.

AU - Waltenberger, W.

AU - Walzel, G.

AU - Widl, E.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Benucci, L.

AU - Ceard, L.

AU - Cerny, K.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Maes, T.

AU - Mucibello, L.

AU - Ochesanu, S.

AU - Roland, B.

AU - Rougny, R.

AU - Selvaggi, M.

AU - Van Haevermaet, H.

AU - Kubota, Y.

AU - Mans, J.

N1 - Funding Information: Funding: this study was supported by the National Institute of Dental and Craniofacial Research at the National Institute of Health [DE025726 and DE023838 to S. Cha, and T90DE021990 to M. Mona], and the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education [2015R1D1A1A01060468 to Y.J. Lee]. Competing interests: none declared.

PY - 2011

Y1 - 2011

N2 - The result of a search at the LHC for heavy stable charged particles produced in pp collisions at √s = 7TeV is described. The data sample was collected with the CMS detector and corresponds to an integrated luminosity of 3:1 pb-1. Momentum and ionization-energy-loss measurements in the inner tracker detector are used to identify tracks compatible with heavy slow-moving particles. Additionally, tracks passing muon identification requirements are also analyzed for the same signature. In each case, no candidate passes the selection, with an expected background of less than 0:1 events. A lower limit at the 95% confidence level on the mass of a stable gluino is set at 398 GeV/c2, using a conventional model of nuclear interactions that allows charged hadrons containing this particle to reach the muon detectors. A lower limit of 311 GeV/c2 is also set for a stable gluino in a conservative scenario of complete charge suppression, where any hadron containing this particle becomes neutral before reaching the muon detectors.

AB - The result of a search at the LHC for heavy stable charged particles produced in pp collisions at √s = 7TeV is described. The data sample was collected with the CMS detector and corresponds to an integrated luminosity of 3:1 pb-1. Momentum and ionization-energy-loss measurements in the inner tracker detector are used to identify tracks compatible with heavy slow-moving particles. Additionally, tracks passing muon identification requirements are also analyzed for the same signature. In each case, no candidate passes the selection, with an expected background of less than 0:1 events. A lower limit at the 95% confidence level on the mass of a stable gluino is set at 398 GeV/c2, using a conventional model of nuclear interactions that allows charged hadrons containing this particle to reach the muon detectors. A lower limit of 311 GeV/c2 is also set for a stable gluino in a conservative scenario of complete charge suppression, where any hadron containing this particle becomes neutral before reaching the muon detectors.

KW - Hadron-Hadron scattering

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IS - 3

M1 - 24

ER -

Search for heavy stable charged particles in pp collisions at √s = 7 TeV

Abstract

Bibliographical note

Keywords

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