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Z0 Boson Measurement with the ALICE Central Barrel in pp collisions at 14 TeV

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arxiv 0808.0453 v1 pith:HWZUYZPI submitted 2008-08-04 hep-ex

Z0 Boson Measurement with the ALICE Central Barrel in pp collisions at 14 TeV

classification hep-ex
keywords alicebackgroundbarrelcentralcollisionselectronexpectedorder
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The possibility to detect the Z0 in the ALICE central barrel is studied via the electronic decay channel Z0->e+e-. The signal and the background are simulated with the leading order event generator PYTHIA 6. The total cross-sections are taken from NLO calculations. Based on test beam data, the electron identification performance of the Transition Radiation Detector is extrapolated to high momenta. The expected yields for minimum-bias pp collisions at 14 TeV are presented. An isolation cut on the single electron, together with a minimum transverse momentum cut, allows to obtain a clear signal. The expected background is of the order of 1 % with the main contribution coming from misidentified pions from jets.

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