22–24 May 2013
Physics Department, University "La Sapienza", Roma, Italy
Europe/Rome timezone

SCIENTIFIC VERIFICATION OF THE HIGH ALTITUDE WATER CHERENKOV OBSERVATORY

23 May 2013, 15:05
15m
Aula Edoardo Amaldi (first floor) (Physics Department, University "La Sapienza", Roma, Italy)

Aula Edoardo Amaldi (first floor)

Physics Department, University "La Sapienza", Roma, Italy

Speaker

Dr Antonio Marinelli (UNAM - Physics Institute)

Description

The High Altitude Water Cherenkov (HAWC) observatory is a TeV gamma-ray and cosmic-ray detector currently under construction at an altitude of 4100 m close to volcano Sierra Negra in the state of Puebla, Mexico. The HAWC observatory is an extensive air-shower array comprised of 300 optically-isolated water Cherenkov detectors (WCDs). Each WCD contains ~200,000 liters of filtered water and four upward-facing photomultiplier tubes. In Fall 2014, when the HAWC observatory will reach an area of 22,000 m^2, the sensitivity will be 15 times higher than its predecessor Milagro. Since September 2012, more than 30 WCDs have been instrumented and taking data. This first commissioning phase has been crucial for the verification of the data acquisition and event reconstruction algorithms. Moreover, with the increasing number of instrumented WCDs, it is important to improve the scientific verification. In this work we present a comparison between Monte Carlo simulation and data for different detector configurations and results of muon discrimination algorithms.

Primary author

Dr Antonio Marinelli (UNAM - Physics Institute)

Co-authors

Prof. Andres Sandoval (UNAM - Physics Institute) Prof. Ernesto Belmont (UNAM - Physics Institute) Prof. Ruben Alfaro (UNAM - Physics Institute) Prof. Varlen Grabski (UNAM - Physics Institute)

Presentation materials