A hypothetical new particle is produced in proton-proton collisions with a production…

PHYSICS · Subjective · Fermi University Physics · Particle Physics & Quantum Fields · Particles, interactions and experiment · Particles, interactions and experiment

Particle Physics, Ch Detectors, event reconstruction and claiming a discovery

Problem

A hypothetical new particle

X

is produced in proton-proton collisions with a production cross section of

1.0\,\mathrm{pb}

, and decays to a pair of photons with branching ratio

6.0\times10^{-3}

. A detector records an integrated luminosity of

15\,\mathrm{fb}^{-1}

and identifies such diphoton events with an overall selection efficiency of

0.35

. Compute the expected number of signal events recorded in the diphoton channel.

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