D. Seckel, Univ. of Delaware
Sponsored Links
This presentation is the property of its rightful owner.
1 / 21

Topics PowerPoint PPT Presentation


  • 89 Views
  • Uploaded on
  • Presentation posted in: General

Topics. RF pulses from Showers. Radiation from single particles. ZHS: 2 0.5. Sum over particles/Integrate over shower. Shower Front + Light Cone. Density of Excess Projected Track Length. Separation of Variables & Form Factor. Phase Factors and Rescaling FF. Most MC’s use this.

Download Presentation

Topics

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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


D. Seckel, Univ. of Delaware


Topics

  • RF pulses from Showers


Radiation from single particles

ZHS: 2

0.5


Sum over particles/Integrate over shower

Shower Front + Light Cone

Density of Excess Projected Track Length


Separation of Variables & Form Factor


Phase Factors and Rescaling FF

Most MC’s use this


Normalization and Determination of f, Gy, Gz


AVZ, ZHS, (G4 later)

AVZ Use a Gaussian, and give the half-width of the Cerenkov cone

at 1 GHz as 3.72 ° for a 1 PeV (3.1 m) shower.

Determine Gz as FT of gaussian


Scaling vs AVZ

Field calculation is integral

over shower profile

  • Adapted from Alvarez, Vazquez, Zas

  • “Full sim” is approx a

  • Blue – Gaussian for f(z), AVZ approx c for Gy

  • Red – Griessen for f(z)

Separation of shower profile

Separation of phase factors

Separation of form factors

With scaled frequencies


High frequency


Phases


Scaling with energy and type


Scaling with medium

AVZ scaled

G4


Scaling behavior

Single particle & shower signals

Includes LPM effect

to observer

qc

fractional excess

y

z


Pulse shapes


Scaling model w/Shahid’s G4 10 TeV shower


Multiple showers


Fluctuations


Better shower profiles?


Acoustic (in progress)

  • Same as radio except

    • scalar vs vector

    • total track length

    • v/c is smaller

    • attenuation

    • experiment bandwidth


Summary


  • Login