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

ATLAS Collaboration

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    The results of a search for an excited bottom-quark b in pp collisions at 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.

    Original languageEnglish
    Pages (from-to)171-189
    Number of pages19
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume721
    Issue number4-5
    DOIs
    Publication statusPublished - 2013 Apr 25

    Fingerprint

    quarks
    detectors
    electroweak model
    leptons
    bosons
    collisions
    decay
    interactions

    Keywords

    • ATLAS
    • b
    • Excited quark
    • Single top-quark

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Search for single b-quark production with the ATLAS detector at √s=7 TeV. / ATLAS Collaboration.

    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 721, No. 4-5, 25.04.2013, p. 171-189.

    Research output: Contribution to journalArticle

    @article{82967b8ae6ff4a94b04a523302dce087,
    title = "Search for single b⁎-quark production with the ATLAS detector at √s=7 TeV",
    abstract = "The results of a search for an excited bottom-quark b⁎ in pp collisions at 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.",
    keywords = "ATLAS, b, Excited quark, Single top-quark",
    author = "{ATLAS Collaboration} and G. Aad and T. Abajyan and B. Abbott and J. Abdallah and {Abdel Khalek}, S. and Abdelalim, {A. A.} and O. Abdinov and R. Aben and B. Abi and M. Abolins and AbouZeid, {O. S.} and H. Abramowicz and H. Abreu and Ochoa, {M. I.} and Acharya, {B. S.} and L. Adamczyk and Adams, {D. L.} and Addy, {T. N.} and J. Adelman and S. Adomeit and P. Adragna and T. Adye and S. Aefsky and Aguilar-Saavedra, {J. A.} and M. Agustoni and Ahlen, {S. P.} and F. Ahles and A. Ahmad and M. Ahsan and G. Aielli and {\AA}kesson, {T. P.A.} and G. Akimoto and Akimov, {A. V.} and Alam, {M. A.} and J. Albert and S. Albrand and M. Aleksa and Aleksandrov, {I. N.} and F. Alessandria and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and M. Aliev and G. Alimonti and J. Alison and Allbrooke, {B. M.M.} and Allison, {L. J.} and Kohei Yorita",
    year = "2013",
    month = "4",
    day = "25",
    doi = "10.1016/j.physletb.2013.03.016",
    language = "English",
    volume = "721",
    pages = "171--189",
    journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
    issn = "0370-2693",
    publisher = "Elsevier",
    number = "4-5",

    }

    TY - JOUR

    T1 - Search for single b⁎-quark production with the ATLAS detector at √s=7 TeV

    AU - ATLAS Collaboration

    AU - Aad, G.

    AU - Abajyan, T.

    AU - Abbott, B.

    AU - Abdallah, J.

    AU - Abdel Khalek, S.

    AU - Abdelalim, A. A.

    AU - Abdinov, O.

    AU - Aben, R.

    AU - Abi, B.

    AU - Abolins, M.

    AU - AbouZeid, O. S.

    AU - Abramowicz, H.

    AU - Abreu, H.

    AU - Ochoa, M. I.

    AU - Acharya, B. S.

    AU - Adamczyk, L.

    AU - Adams, D. L.

    AU - Addy, T. N.

    AU - Adelman, J.

    AU - Adomeit, S.

    AU - Adragna, P.

    AU - Adye, T.

    AU - Aefsky, S.

    AU - Aguilar-Saavedra, J. A.

    AU - Agustoni, M.

    AU - Ahlen, S. P.

    AU - Ahles, F.

    AU - Ahmad, A.

    AU - Ahsan, M.

    AU - Aielli, G.

    AU - Åkesson, T. P.A.

    AU - Akimoto, G.

    AU - Akimov, A. V.

    AU - Alam, M. A.

    AU - Albert, J.

    AU - Albrand, S.

    AU - Aleksa, M.

    AU - Aleksandrov, I. N.

    AU - Alessandria, F.

    AU - Alexa, C.

    AU - Alexander, G.

    AU - Alexandre, G.

    AU - Alexopoulos, T.

    AU - Alhroob, M.

    AU - Aliev, M.

    AU - Alimonti, G.

    AU - Alison, J.

    AU - Allbrooke, B. M.M.

    AU - Allison, L. J.

    AU - Yorita, Kohei

    PY - 2013/4/25

    Y1 - 2013/4/25

    N2 - The results of a search for an excited bottom-quark b⁎ in pp collisions at 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.

    AB - The results of a search for an excited bottom-quark b⁎ in pp collisions at 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.

    KW - ATLAS

    KW - b

    KW - Excited quark

    KW - Single top-quark

    UR - http://www.scopus.com/inward/record.url?scp=85041994694&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=85041994694&partnerID=8YFLogxK

    U2 - 10.1016/j.physletb.2013.03.016

    DO - 10.1016/j.physletb.2013.03.016

    M3 - Article

    AN - SCOPUS:85041994694

    VL - 721

    SP - 171

    EP - 189

    JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

    JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

    SN - 0370-2693

    IS - 4-5

    ER -