Trigger Correlation Schemes and Projected Sensitivity of the Low Frequency Instrument of the PUEO Experiment

The Payload for Ultrahigh Energy Observations (PUEO) is a long duration balloon experiment designed to observe ultra-high energy neutrinos (UHEN) with energies above EeV. PUEO's primary mechanism of detection will be the use radio antennas to receive signals emitted by Askaryan radiation that UHEN produce while passing through the ice shelf of Antarctica, in addition to signals emitted by Exentsive Air Shower (EAS) events of a UHEN causing a particle shower in the Earth's atmosphere. PUEO will have two detectors, the Main Instrument (MI) which consists of 256 horn atennas operating at 300-1200 MHz, and the Low Frequency (LF) Instrument which consists of 8 antennas operating at 50-300 MHz. Simulation studies have been ongoing to estimate the expected performance of the LF Instrument in its sensitivity to EAS and Askaryan signals. Computational efforts have made use of monte-carlo event generators in conjunction with detailed models of the various components of the LF antenna array to predict the sensitivity it may add to PUEO. In addition to the individual LF sensitivity, great consideration has been made to the various trigger schemes possible to correlate the LF array trigger with the MI array trigger. Use of AND schemes (Both detectors triggered), OR schemes, and others have been evaluated to decide which may be most significant in increasing overall UHEN sensitivity, in addition to providing the most information to aid in event reconstruction efforts.