Experimental limit on the decay W±→π±γ at the CERN >pp collider
Physics Letters B 277:1-2 (1992) 203-208
Abstract:
Results are given on a search for the decay W±→π±γ with the UA2 detector in pp collisions at √s=630 GeV. No signal for such a process is observed and upper limits on the ration R=Γ(W±→π±γ)/ Γ(W±→e±v)<4.9× 10-3 and on the branching ratio BR(W±→π±γ)<5. 4×10-4 are derived at 95% confidence level. © 1992.Study of electron pair production below the Z mass at the CERN pp collider
Physics Letters B 275:1-2 (1992) 202-208
Abstract:
Results on the cross section for the production of electron pairs in pp collisions at √s = 630 GeV are presented. The measured value is σ = 405 ± 51 (syst.) ± 84 (syst.) pb, in the invariant mass interval 10 < m< 70 GeV. The results are compared to recent theoretical calculations which include O(αs2) QCD contributions. The comparison of these data with those of lower energy experiments show approximate scaling as a function of the variable √τ = m √s. © 1992.A search for scalar leptoquarks at the CERN pp collider
Physics Letters B 274:3-4 (1992) 507-512
Abstract:
A search has been made for scalar leptoquark pair production with the upgraded UA2 detector at the CERN pp Collider at √s = 630 GeV, investigating decays of the leptoquark into a quark and either an electron or an electron neutrino. From an event sample corresponding to an integrated luminosity of 13 pb-1 a lower limit has been determined for the mass of first generation leptoquarks, yielding 67 GeV (95% CL) for a scalar leptoquark decaying with a 50% branching ratio into a quark and an electron. © 1992.A MEASUREMENT OF SINGLE AND DOUBLE PROMPT PHOTON PRODUCTION AT THE CERN P(BAR)P COLLIDER
PHYSICS LETTERS B 288:3-4 (1992) 386-394
A MEASUREMENT OF THE W AND Z PRODUCTION CROSS-SECTIONS AND A DETERMINATION OF GAMMA-W AT THE CERN PBARP COLLIDER
PHYSICS LETTERS B 276:3 (1992) 365-374