Search for single b*-quark production with the ATLAS detector at root s=7 TeV

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

doi:10.1016/j.physletb.2013.03.016

2013

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ATLAS Collaboration (ukupan broj autora: 2906)

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Abstract

The results of a search for an excited bottom-quark b* in pp collisions at root s = 7 TeV, using 4.7 fb(-1) of data collected by the ATLAS detector at the LHC are presented. In the model studied, a single b*-quark is produced through a chromomagnetic interaction and subsequently decays to a W boson and a top quark. The search is performed in the dilepton and lepton + jets final states, which are combined to set limits on b*-quark couplings for a range of b*-quark masses. For a benchmark with unit size chromomagnetic and Standard Model-like electroweak b* couplings, b* quarks with masses less than 870 GeV are excluded at the 95% credibility level. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.

Keywords:

ATLAS / b* / Single top-quark / Excited quark

Source:
Physics Letters B, 2013, 721, 4-5, 171-189

Projects:

ANPCyT, Argentina, YerPhI, 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, ERC, 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, Switzerland, SNSF, Switzerland, Cantons of Bern, Switzerland, 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.2013.03.016

ISSN: 0370-2693; 1873-2445

WoS: 000318055900001

Scopus: 2-s2.0-85041994694

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	14

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  - Milutinović-Dumbelović, Gordana
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/123456789/5460
AB  - The results of a search for an excited bottom-quark b* in pp collisions at root s = 7 TeV, using 4.7 fb(-1) of data collected by the ATLAS detector at the LHC are presented. In the model studied, a single b*-quark is produced through a chromomagnetic interaction and subsequently decays to a W boson and a top quark. The search is performed in the dilepton and lepton + jets final states, which are combined to set limits on b*-quark couplings for a range of b*-quark masses. For a benchmark with unit size chromomagnetic and Standard Model-like electroweak b* couplings, b* quarks with masses less than 870 GeV are excluded at the 95% credibility level. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.
T2  - Physics Letters B
T1  - Search for single b*-quark production with the ATLAS detector at root s=7 TeV
VL  - 721
IS  - 4-5
SP  - 171
EP  - 189
DO  - 10.1016/j.physletb.2013.03.016
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 Milutinović-Dumbelović, Gordana 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/123456789/5460",
abstract = "The results of a search for an excited bottom-quark b* in pp collisions at root s = 7 TeV, using 4.7 fb(-1) of data collected by the ATLAS detector at the LHC are presented. In the model studied, a single b*-quark is produced through a chromomagnetic interaction and subsequently decays to a W boson and a top quark. The search is performed in the dilepton and lepton + jets final states, which are combined to set limits on b*-quark couplings for a range of b*-quark masses. For a benchmark with unit size chromomagnetic and Standard Model-like electroweak b* couplings, b* quarks with masses less than 870 GeV are excluded at the 95% credibility level. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.",
journal = "Physics Letters B",
title = "Search for single b*-quark production with the ATLAS detector at root s=7 TeV",
volume = "721",
number = "4-5",
pages = "171-189",
doi = "10.1016/j.physletb.2013.03.016"
}

Aad, G., Borjanovic, I., Božović-Jelisavčić, I., Ćirković, P., Agatonović-Jovin, T., Krstić, J., Mamužić, J., Milutinović-Dumbelović, G., Popovic, D. S., Sijacki, D., Simic, L., Vranjes, N., Vranješ Milosavljević, M.,& Zivkovic, L. (2013). Search for single b*-quark production with the ATLAS detector at root s=7 TeV.
Physics Letters B, 721(4-5), 171-189.
https://doi.org/10.1016/j.physletb.2013.03.016

Aad G, Borjanovic I, Božović-Jelisavčić I, Ćirković P, Agatonović-Jovin T, Krstić J, Mamužić J, Milutinović-Dumbelović G, Popovic DS, Sijacki D, Simic L, Vranjes N, Vranješ Milosavljević M, Zivkovic L. Search for single b*-quark production with the ATLAS detector at root s=7 TeV. Physics Letters B. 2013;721(4-5):171-189

Aad G., Borjanovic I., Božović-Jelisavčić Ivanka, Ćirković Predrag, Agatonović-Jovin Tatjana, Krstić Jelena, Mamužić Judita, Milutinović-Dumbelović Gordana, Popovic D. S., Sijacki Dj, Simic Lj, Vranjes N., Vranješ Milosavljević Marija, Zivkovic L., "Search for single b*-quark production with the ATLAS detector at root s=7 TeV" Physics Letters B, 721, no. 4-5 (2013):171-189,
https://doi.org/10.1016/j.physletb.2013.03.016 .