Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at root s=7 TeV

Aad, G.; Borjanovic, I.; Božović-Jelisavčić, Ivanka; Ćirković, Predrag; Agatonović-Jovin, Tatjana; Krstić, Jelena; Mamužić, Judita; Popovic, D. S.; Sijacki, Dj.; Simic, Lj; Vranjes, N.; Vranješ Milosavljević, Marija; Zivkovic, L.

doi:10.1016/j.physletb.2013.02.015

2013

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ATLAS Collaboration (ukupan broj autora: 2905)

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Abstract

A search for long-lived particles is performed using a data sample of 4.7 fb(-1) from proton-proton collisions at a centre-of-mass energy. root s = 7 TeV collected by the ATLAS detector at the LHC. No excess is observed above the estimated background and lower limits, at 95% confidence level, are set on the mass of the long-lived particles in different scenarios, based on their possible interactions in the inner detector, the calorimeters and the muon spectrometer. Long-lived staus in gauge-mediated SUSY-breaking models are excluded up to a mass of 300 GeV for tan beta = 5-20. Directly produced long-lived sleptons are excluded up to a mass of 278 GeV. R-hadrons, composites of gluino (stop, sbottom) and light quarks, are excluded up to a mass of 985 GeV (683 GeV, 612 GeV) when using a generic interaction model. Additionally two sets of limits on R-hadrons are obtained that are less sensitive to the interaction model for R-hadrons. One set of limits is obtained using only the inner detec...

Keywords:

Long-lived / GMSB / Slepton / R-hadron / ATLAS / LHC

Source:
Physics Letters B, 2013, 720, 4-5, 277-308

Projects:

ANPCyT, Argentina, YerPhl, Armenia, ARC, Australia, BMWF, Austria, FWF, Austria, ANAS, Azerbaijan, SSTC, Belarus, CNPq, Brazil, FAPESP, Brazil, NSERC, Canada, NRC, Canada, CFI, Canada, CERN, CONICYT, Chile, CAS, China, MOST, China, NSFC, China, COLCIENCIAS, Colombia, MSMT CR, Czech Republic, MPO CR, Czech Republic, VSC CR, Czech Republic, DNRF, Denmark, DNSRC, Denmark, Lundbeck Foundation, Denmark, EPLANET, European Union, ERC, European Union, NSRF, European Union, IN2P3-CNRS, France, CEA-DSM/IRFU, France, GNSF, Georgia, BMBF, Germany, DFG, Germany, HGF, Germany, MPG, Germany, AvH Foundation, Germany, GSRT, Greece, NSRF, Greece, ISF, Israel, MINERVA, Israel, GIF, Israel, DIP, Israel, Benoziyo Center, Israel, INFN, Italy, MEXT, Japan, JSPS, Japan, CNRST, Morocco, FOM, Netherlands, NWO, Netherlands, BRF, Norway, RCN, Norway, MNiSW, Poland, GRICES, Portugal, FCT, Portugal, MERYS (MECTS), Romania, MES of Russia, ROSATOM, Russian Federation, JINR, MSTD, Serbia, MSSR, Slovakia, ARRS, Slovenia, MVZT, Slovenia, DST/NRF, South Africa, MICINN, Spain, SRC, Sweden, Wallenberg Foundation, Sweden, SER, Canton of Bern, Switzerland, SER, Canton of Geneva, Switzerland, SNSF, Canton of Bern, Switzerland, SNSF, Canton of Geneva, Switzerland, NSC, Taiwan, TAEK, Turkey, STFC, United Kingdom, Royal Society and Leverhulme Trust, United Kingdom, DOE, United States of America, NSF, United States of America, ICREA

DOI: 10.1016/j.physletb.2013.02.015

ISSN: 0370-2693; 1873-2445

WoS: 000317151500002

Scopus: 2-s2.0-85041994732

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TY  - JOUR
AU  - Aad, G.
AU  - Borjanovic, I.
AU  - Božović-Jelisavčić, Ivanka
AU  - Ćirković, Predrag
AU  - Agatonović-Jovin, Tatjana
AU  - Krstić, Jelena
AU  - Mamužić, Judita
AU  - Popovic, D. S.
AU  - Sijacki, Dj.
AU  - Simic, Lj
AU  - Vranjes, N.
AU  - Vranješ Milosavljević, Marija
AU  - Zivkovic, L.
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5401
AB  - A search for long-lived particles is performed using a data sample of 4.7 fb(-1) from proton-proton collisions at a centre-of-mass energy. root s = 7 TeV collected by the ATLAS detector at the LHC. No excess is observed above the estimated background and lower limits, at 95% confidence level, are set on the mass of the long-lived particles in different scenarios, based on their possible interactions in the inner detector, the calorimeters and the muon spectrometer. Long-lived staus in gauge-mediated SUSY-breaking models are excluded up to a mass of 300 GeV for tan beta = 5-20. Directly produced long-lived sleptons are excluded up to a mass of 278 GeV. R-hadrons, composites of gluino (stop, sbottom) and light quarks, are excluded up to a mass of 985 GeV (683 GeV, 612 GeV) when using a generic interaction model. Additionally two sets of limits on R-hadrons are obtained that are less sensitive to the interaction model for R-hadrons. One set of limits is obtained using only the inner detector and calorimeter observables, and a second set of limits is obtained based on the inner detector alone. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.
T2  - Physics Letters B
T1  - Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at root s=7 TeV
VL  - 720
IS  - 4-5
SP  - 277
EP  - 308
DO  - 10.1016/j.physletb.2013.02.015
ER  -

@article{
author = "Aad, G. and Borjanovic, I. and Božović-Jelisavčić, Ivanka and Ćirković, Predrag and Agatonović-Jovin, Tatjana and Krstić, Jelena and Mamužić, Judita and Popovic, D. S. and Sijacki, Dj. and Simic, Lj and Vranjes, N. and Vranješ Milosavljević, Marija and Zivkovic, L.",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5401",
abstract = "A search for long-lived particles is performed using a data sample of 4.7 fb(-1) from proton-proton collisions at a centre-of-mass energy. root s = 7 TeV collected by the ATLAS detector at the LHC. No excess is observed above the estimated background and lower limits, at 95% confidence level, are set on the mass of the long-lived particles in different scenarios, based on their possible interactions in the inner detector, the calorimeters and the muon spectrometer. Long-lived staus in gauge-mediated SUSY-breaking models are excluded up to a mass of 300 GeV for tan beta = 5-20. Directly produced long-lived sleptons are excluded up to a mass of 278 GeV. R-hadrons, composites of gluino (stop, sbottom) and light quarks, are excluded up to a mass of 985 GeV (683 GeV, 612 GeV) when using a generic interaction model. Additionally two sets of limits on R-hadrons are obtained that are less sensitive to the interaction model for R-hadrons. One set of limits is obtained using only the inner detector and calorimeter observables, and a second set of limits is obtained based on the inner detector alone. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.",
journal = "Physics Letters B",
title = "Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at root s=7 TeV",
volume = "720",
number = "4-5",
pages = "277-308",
doi = "10.1016/j.physletb.2013.02.015"
}

Aad G, Borjanovic I, Božović-Jelisavčić I, Ćirković P, Agatonović-Jovin T, Krstić J, Mamužić J, Popovic DS, Sijacki D, Simic L, Vranjes N, Vranješ Milosavljević M, Zivkovic L. Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at root s=7 TeV. Physics Letters B. 2013;720(4-5):277-308

Aad, G., Borjanovic, I., Božović-Jelisavčić, I., Ćirković, P., Agatonović-Jovin, T., Krstić, J., Mamužić, J., Popovic, D. S., Sijacki, Dj., Simic, L., Vranjes, N., Vranješ Milosavljević, M.,& Zivkovic, L. (2013). Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at root s=7 TeV.
Physics Letters B, 720(4-5), 277-308.
https://doi.org/10.1016/j.physletb.2013.02.015

Aad G., Borjanovic I., Božović-Jelisavčić Ivanka, Ćirković Predrag, Agatonović-Jovin Tatjana, Krstić Jelena, Mamužić Judita, Popovic D. S., Sijacki Dj., Simic Lj, Vranjes N., Vranješ Milosavljević Marija, Zivkovic L., "Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at root s=7 TeV" 720, no. 4-5 (2013):277-308,
https://doi.org/10.1016/j.physletb.2013.02.015 .