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Search for New Fermions (“Quirks”) at the Fermilab Tevatron Collider
Baringer, Philip S. Bean, Alice Clutter, Justace Randall McGivern, Carrie Lynne Sekaric, Jadranka Wilson, Graham Wallace Abazov, V. M. Abbott, B. Abolins, M. Acharya, B. S.
Baringer, Philip S.
Bean, Alice
Clutter, Justace Randall
McGivern, Carrie Lynne
Sekaric, Jadranka
Wilson, Graham Wallace
Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
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Abstract
We report results of a search for particles with anomalously high ionization in events with a high transverse energy jet and large missing transverse energy in 2.4 fb(−1) of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron pp-bar collider. Production of such particles (quirks) is expected in scenarios with extra QCD-like SU(N) sectors, and this study is the first dedicated search for such signatures. We find no evidence of a signal and set a lower mass limit of 107, 119, and 133 GeV for the mass of a charged quirk with strong dynamics scale Λ in the range from 10 keV to 1 MeV and N=2, 3, and 5, respectively.
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This is the publisher's version, also available electronically from http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.105.211803.
Date
2010-11-19
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American Physical Society
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V. M. Abazov et al. (D0 Collaboration). (2010). "Search for New Fermions (“Quirks”) at the Fermilab Tevatron Collider." Physical Review Letters, 105(21):211803. http://dx.doi.org/10.1103/PhysRevLett.105.211803.