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Title

Limits on Quark-Lepton Compositeness Scales from Dileptons Produced in 1.8 TeV p¯p Collisions

CollaborationWith : Clark, Allan Geoffrey / Couyoumtzelis, Christian / Kambara, Hisanori / Speer, Thomas / Wu, Xin
Published in Physical Review Letters. 1997, vol. 79, no. 12, p. 2198-2203
Abstract The dilepton mass spectrum in p¯p→l+l−+X interactions is studied using dielectrons (ee) and dimuons (μμ) in 110pb−1 of data collected with the Collider Detector at Fermilab. The data are consistent with standard model predictions. The mass spectrum, being a probe for new physics, is examined for new interactions of quarks and leptons from a common composite structure. Assuming a contact interaction with the conventional coupling g20/4π=1, limits on chiral quark-electron and quark-muon compositeness scales in the range of 2.5 to 4.2 TeV are obtained.
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CDF COLLABORATION. Limits on Quark-Lepton Compositeness Scales from Dileptons Produced in 1.8 TeV p¯p Collisions. In: Physical Review Letters, 1997, vol. 79, n° 12, p. 2198-2203. https://archive-ouverte.unige.ch/unige:112627

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Deposited on : 2019-01-09

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