A Search for Bottomonium-like Resonances at the Collider Detector at Fermilab

Details A Search for Bottomonium-like Resonances at the Collider Detector at Fermilab A Search for Bottomonium-like Resonances at the Collider Detector at Fermilab

Mar 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aps..apr.h9002s&link_type=abstract

American Physical Society, APS April Meeting 2012, March 31-Apr 3, 2012, abstract #H9.002

Physics

Scientific paper

The Belle experiment recently reported evidence for two bottomonium-like charged resonances, (Zb^+(10610)) and (Zb^+(10650)), observed in decays from the (υ(5S)). We present a search for these resonances in CDF data. In contrast to the Belle observation, we search for (Zb) states directly produced in (pp) collisions and decaying to an (υ(1S, 2S, 3S)) plus a charged pion. Since such a state must both be charged and contain a bottom and an anti- bottom quark, it would indicate a new hadronic state, for example, a tetraquark state. Starting from a sample of (υ(1S, 2S, 3S)) candidates selected by their decay to (+circ;-circ;), we add a pion and search for the (Zb) resonances. We check the sensitivity by reconstructing (υ(2S, 3S) ->υ(1S)+circ;-circ;) decay.

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