Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
1999-09-14
Phys.Rev.Lett.84:835-840,2000
Physics
High Energy Physics
High Energy Physics - Experiment
12 pages, 2 figures, submitted to Phys. Rev. Letters on 9/12/99
Scientific paper
10.1103/PhysRevLett.84.835
We present the results of a search for pair production of a fourth-generation charge -1/3 quark (b') in sqrt(s)=1.8 TeV ppbar collisions using 88 pb^(-1) of data obtained with the Collider Detector at Fermilab. We assume that both quarks decay via the flavor-changing neutral current process b' -> bZ and that the b' mass is greater than m_Z + m_b. We studied the decay mode b'b'bar -> ZZ b bbar where one Z0 decays into e^+e^- or mu^+ mu^- and the other decays hadronically, giving a signature of two leptons plus jets. An upper limit on the cross section of ppbar -> b'b'bar times [BR (b' -> bZ)]^2 is established as a function of the b' mass. We exclude at 95% confidence level a b' quark with mass between 100 and 199 GeV/c^2 for BR(b' -> bZ) = 100%.
Affolder T.
CDF Collaboration
No associations
LandOfFree
Search for a Fourth-Generation Quark More Massive than the Z0 Boson in ppbar Collisions at sqrt(s) = 1.8 TeV does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Search for a Fourth-Generation Quark More Massive than the Z0 Boson in ppbar Collisions at sqrt(s) = 1.8 TeV, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Search for a Fourth-Generation Quark More Massive than the Z0 Boson in ppbar Collisions at sqrt(s) = 1.8 TeV will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-197566