The S-Channel Single Top Quark Production As a Constraint for W ' Boson Contribution

An analysis is performed to constrain the W ' boson production using the measurement of the s ‑channel single top quark production cross section. Both phenomenological and statistical approaches are examined and results are presented. In the best case, W ' bosons that interact only to the right-handed fermions are excluded below 1390 GeV. To our knowledge, it is the first time that the measured cross section of the s -channel single top quark production from the colliders is used to rule out a part of the phase space of the W ' boson.