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SUMMARY:Towards a hybrid optical-acoustic deep-sea neutrino detector
DTSTART;VALUE=DATE-TIME:20251120T084500Z
DTEND;VALUE=DATE-TIME:20251120T090000Z
DTSTAMP;VALUE=DATE-TIME:20260421T044235Z
UID:indico-contribution-28895@indico.ific.uv.es
DESCRIPTION:Speakers: Miguel Ardid (Universitat Politècnica de València)
 \nNowadays\, deep-sea neutrino telescopes\, e.g. KM3NeT\, are based on the
  detection of the Cherenkov light produced after a neutrino interaction by
  a large 3D array of optical sensors. These detectors also have an acousti
 c system associated for monitoring the position of optical sensors. In thi
 s paper\, we discuss the possibility of using the acoustic sensors of the 
 positioning system for the detection of the thermo-acoustic pulse produced
  after the interaction of an ultra-high energy neutrino\, to explore the p
 ossibility of having a hybrid optical–acoustic detector. This has become
  even more relevant after the observation of a very high-energy neutrino i
 n KM3NeT/ARCA detector. We consider that the main limitation for the hybri
 d detector comes in the difficulty of triggering interesting acoustic even
 ts\, which is due to the characteristics of the signature: a very weak and
  short bipolar pulse and of the large separation between acoustic sensors.
  To overcome these difficulties\, we are working in two research topics. F
 irstly\, we are developing an acoustic antenna formed by an array of 4 clo
 se hydrophones that complements the hydrophones of the telescope. Secondly
 \, we are working on the deep-sea acoustic monitoring and data analysis\, 
 proposing a new triggering method based on spectrogram analysis. As it wil
 l be presented\, this method is more appropriate for finding the weak shor
 t signal than the cross-correlation method used for acoustic positioning.\
 n\nhttps://indico.ific.uv.es/event/8035/contributions/28895/
LOCATION:
URL:https://indico.ific.uv.es/event/8035/contributions/28895/
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