Study of the B+ ->J/Psi K decay at LHCb - High Energy Physics
Study of the B+ ->J/Psi K decay at LHCb - High Energy Physics
Study of the B+ ->J/Psi K decay at LHCb - High Energy Physics
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Integr<strong>at</strong>ed luminosity and annual<br />
yield<br />
• Let us make a quick calcul<strong>at</strong>ion <strong>of</strong> <strong>the</strong> B + cross section.<br />
• For <strong>the</strong> process B u ->J/<strong>Psi</strong> K:<br />
– Visible branching fraction BR = 6x10 -5<br />
– Gener<strong>at</strong>or-level efficiency ε gen = 0.1630<br />
– Average selection efficiency ε sel = 0.330<br />
• The MC d<strong>at</strong>aset (277k gener<strong>at</strong>ed events) corresponds an<br />
integr<strong>at</strong>ed luminosity <strong>of</strong> L int = 0.12 fb -1 .<br />
• Taking bin 3
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