We report a search for narrow resonances, produced in p anti-p collisions at s**(1/2) = 1.96 TeV, that decay into muon pairs with invariant mass between 6.3 and 9.0 GeV/c2. The data, collected with the CDF II detector at the Fermilab Tevatron collider, correspond to an integrated luminosity of 630 pb-1. We use the dimuon invariant mass distribution to set 90% upper credible limits of about 1% to the ratio of the production cross section times muonic branching fraction of possible narrow resonances to that of the Upsilon (1S) meson.
Search for narrow resonances lighter than ϒ mesons
CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MOGGI, NICCOLO';RIMONDI, FRANCO;ZUCCHELLI, STEFANO;
2009
Abstract
We report a search for narrow resonances, produced in p anti-p collisions at s**(1/2) = 1.96 TeV, that decay into muon pairs with invariant mass between 6.3 and 9.0 GeV/c2. The data, collected with the CDF II detector at the Fermilab Tevatron collider, correspond to an integrated luminosity of 630 pb-1. We use the dimuon invariant mass distribution to set 90% upper credible limits of about 1% to the ratio of the production cross section times muonic branching fraction of possible narrow resonances to that of the Upsilon (1S) meson.File in questo prodotto:
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