2 research outputs found

    Search for W and Z bosons in the reaction (p)over-barp -\u3e two jets plus gamma at root s=1.8 TeV

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    We present a study of the dijet invariant mass distribution for the reaction (p) over barp -\u3e jets + gamma + X, at a center of mass energy of 1.8 TeV, using data collected by the CDF experiment. We compare the data to predictions for the production of a photon with two jets, together with the resonant processes (p) over barp -\u3e W/Z + gamma + X, in which the W and Z bosons decay hadronically. A fit is made to the dijet invariant mass distribution combining the nonresonant background and resonant processes. We use the result to establish a limit for the inclusive production cross section of W/Z + gamma with hadronic decay of the W and Z bosons

    Search for the flavor-changing neutral current decay D-0 -\u3emu(+)mu(-) in p(p)over-bar collisions at root s=1.96 TeV

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    We report on a search for the flavor-changing neutral current decay D-0--\u3emu(+)mu(-) in p (p) over bar collisions at roots=1.96 TeV using 65 pb(-1) of data collected by the CDF II experiment at the Fermilab Tevatron Collider. A displaced-track trigger selects long-lived D-0 candidates in the D-0--\u3emu(+)mu(-) search channel, the kinematically similar D-0--\u3epi(+)pi(-) channel used for normalization, the Cabibbo-favored D-0--\u3eK(-)pi(+) channel used to optimize the selection criteria in an unbiased manner, and their charge conjugates. Finding no signal events in the D-0--\u3emu(+)mu(-) search window, we set an upper limit on the branching fraction B(D-0--\u3emu(+)mu(-))less than or equal to2.5x10(-6) (3.3x10(-6)) at the 90% (95%) confidence level
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