Limits on WWZ and WW couplings from WW and WZ production in pp collisions at s=1.8 TeV
Physical Review Letters 75:6 (1995) 1017-1022
Abstract:
Direct limits are set on WWZ and WW three-boson couplings in a search for WW and WZ production with high transverse momentum in pp» collisions at s=1.8 TeV, using the Collider Detector at Fermilab. The results are in agreement with the SU(2) × U(1) model of electroweak interactions. Assuming standard model WW couplings, the limits are interpreted as direct evidence for a nonzero WWZ coupling at subprocess energies near 500 GeV. Alternatively, assuming identical WWZ and WW couplings, bounds -0.11< <2.27 and -0.81< <0.84 are obtained at 95% C.L. for a form factor scale 1000 GeV. © 1995 The American Physical Society.Limits on Z-photon couplings from p- p interactions at s=1.8 TeV
Physical Review Letters 74:11 (1995) 1941-1945
Abstract:
We report limits on anomalous ZZ and Z couplings derived from an analysis of Z+photon production based upon approximately 20 pb-1 of the pp collision data recorded by the Collider Detector at Fermilab. We observe good agreement with the standard model expectation that all Z couplings are zero. Confidence level intervals for individual couplings and contours for pairs of CP-conserving/violating ZZ and Z couplings are presented. © 1995 The American Physical Society.Measurement of W-photon couplings in p- p collisions at s=1.8 TeV
Physical Review Letters 74:11 (1995) 1936-1940
Abstract:
We report on a study of W + photon production in approximately 20 pb-1 of p-p collisions at s=1.8 TeV recorded with the Collider Detector at Fermilab. Our results are in good agreement with standard model expectations and are used to obtain limits on anomalous CP-conserving WW couplings of -2.3<<2.2 for =0 and -0.7<<0.7 for =0 at 95% C.L. We obtain the same limits for CP-violating couplings. These results provide limits on the higher-order electromagnetic moments of the W boson of 0.8Measurement of the B meson differential cross section dσ/dpT in pp̄ collisions at s = 1.8 TeV
Physical Review Letters 75:8 (1995) 1451-1455
Abstract:
This paper presents the first direct measurement of the B meson differential cross section dσ/dpT in pp̄ collisions at s=1.8 TeV using a sample of 19.3±0.7 pb-1 accumulated by the Collider Detector at Fermilab. The cross section is measured in the central rapidity region |y|<1 for pTB>6.0 GeV /c by fully reconstructing the B meson decays B+→J/ψK+ and B0→J/ψK*0892, where J/ψ→μ+μ- and K*0→K+π-. A comparison is made to the theoretical QCD prediction calculated at next-to-leading order. © 1995 The American Physical Society.Measurement of the Bs meson lifetime
Physical Review Letters 74:25 (1995) 4988-4992