High Energy Physics Seminar

Room: B2.38 (Wydział Fizyki UW)

Room: B2.38

Wydział Fizyki UW

Pasteura 5
Aleksander Filip Żarnecki (University of Warsaw), Jan Królikowski (IFD UW), Katarzyna Grzelak (IFD UW)
    • 10:15 AM 11:45 AM
      Reconstructing Air Shower properties with Radio Arrays 1h 30m

      Cosmic rays have been an intriguing field of research since their discovery more than 100 years ago. The origin of these highest energetic particles still remain a mystery. When high-energy cosmic rays impinge upon the atmosphere, they create extensive air showers, which are cascades of secondary particles that are observed with various methods. Measuring the radio emission of air showers is a relatively new but increasingly popular method to extract information about the mass composition of cosmic rays. In this talk I will introduce the principles of radio detection technique focusing on the results obtained with The Low-Frequency Array (LOFAR) radio telescope. I will describe the method of reconstructing the shower maximum Xmax- an important estimator of cosmic ray mass, and ways to enhance the accuray of Xmax estimation by including local atmospheric effects. We will also explore the prospects of other cosmic ray mass estimators in addition to Xmax. I will also explain the prospects of a semi-analytic air shower simulation code for radio emission that is few orders of magnitude faster than the conventional monte carlo counterparts. In the end, I will briefly mention our current research plans with GP300- a prototype for The Giant Radio Array for Neutrino Detection (GRAND).

      Spotkanie odbędzie się za pośrednictwem platformy zoom:

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      Meeting ID: 886 9947 2161,

      Passcode: UW_HEP

      Serdecznie zapraszamy

      dr hab. Katarzyna Grzelak
      prof. dr hab. Jan Królikowski
      prof. dr hab. Aleksander Filip Żarnecki

      Speaker: Dr Pragati Mitra (University of Warsaw (PL))