1 / 10

Reconstruction of total muon number in KASCADE-Grande

Reconstruction of total muon number in KASCADE-Grande. Number of charged particles N ch. Number of muons N m. KASCADE-Grande. Area of 0.5km 2 370m 2 of detector surface Threshold of 5MeV for e/ g + m. KASCADE Array. 192 stations 622m 2 detector surface Threshold 230MeV for m.

Download Presentation

Reconstruction of total muon number in KASCADE-Grande

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Reconstruction of total muon number in KASCADE-Grande

  2. Number of charged particles Nch Number of muons Nm KASCADE-Grande • Area of 0.5km2 • 370m2 of detector surface • Threshold of 5MeV for e/g+m KASCADE Array • 192 stations • 622m2 detector surface • Threshold 230MeV for m Jurriaan van Buren for KASCADE-Grande Collaboration

  3. 1·1017eV - 2 ·1017eV Determine composition with Ne and Nm Jurriaan van Buren for KASCADE-Grande Collaboration

  4. KASCADE-Grande reconstruction • Energy deposit of shower particles in scintillation detector • Additional contribution from the conversion of gamma component and hadrons • Lateral Energy Correction Function (LECF) gives average energy deposit per charged lepton • particle densities in detector • Fit of density distribution with Lateral Distribution Functions • shower core and first estimate of particle numbers Ne, (Nm) • arrival times to determine shower direction q, f • combined fit to obtain better results • derive muon number from KASCADE array muon detectors Jurriaan van Buren for the KASCADE-Grande Collaboration

  5. Fiducial area • false reconstructed shower cores at border of Grande Array • definition of fiducial area 600·600m2 • KASCADE Stations mostly between 275 – 625m • measure rm Dr<11m, 11m<Dr<30m, Dr>30m Jurriaan van Buren for KASCADE-Grande Collaboration

  6. Lateral density function for muons 1017eV, p + Fe, 22 ° Modified Lagutin function: with r0=430m NKG-function: with rmol=590m, s=1.2 Jurriaan van Buren for KASCADE-Grande Collaboration

  7. Reconstruction accuracy • Error of ≈ 30% in region of full efficiency • In radius region of most events error of ≈ 20% Jurriaan van Buren for KASCADE-Grande Collaboration

  8. Reconstruction accuracy • Error ≈ 30% in region of full efficiency • In radius region of most events error ≈ 10% Jurriaan van Buren for KASCADE-Grande Collaboration

  9. First data Jurriaan van Buren for KASCADE-Grande Collaboration

  10. Jurriaan van Buren for KASCADE-Grande Collaboration

More Related