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

G. Aad, T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, O. Abdinov, R. Aben, B. Abi, M. Abolins, O. S. AbouZeid, H. Abramowicz, H. Abreu, M. I. Ochoa, B. S. Acharya, L. Adamczyk, D. L. Adams, T. N. Addy, J. Adelman, S. AdomeitP. Adragna, T. Adye, S. Aefsky, J. A. Aguilar-Saavedra, M. Agustoni, S. P. Ahlen, F. Ahles, A. Ahmad, M. Ahsan, G. Aielli, T. P.A. Åkesson, G. Akimoto, A. V. Akimov, M. A. Alam, J. Albert, S. Albrand, M. Aleksa, I. N. Aleksandrov, F. Alessandria, C. Alexa, G. Alexander, G. Alexandre, T. Alexopoulos, M. Alhroob, M. Aliev, G. Alimonti, J. Alison, K. Kawagoe, S. Oda, J. Tojo, ATLAS Collaboration

研究成果: ジャーナルへの寄稿学術誌査読

20 被引用数 (Scopus)

抄録

The results of a search for an excited bottom-quark b*in pp collisions at s=7 TeV, using 4.7 fb-1of 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.

本文言語英語
ページ(範囲)171-189
ページ数19
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
721
4-5
DOI
出版ステータス出版済み - 4月 25 2013

!!!All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学

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