Published March 2, 2009
| Version v1
Journal article
On the macroscopic formation length for GeV photons
Creators
- 1. Department of Physics and Astronomy, University of Aarhus (Denmark)
- 2. University of Florence, Florence (Italy)
- 3. LIP, Universidade de Coimbra (Portugal)
- 4. Free University, Amsterdam (Netherlands)
- 5. University of Istanbul, Istanbul (Turkey)
- 6. University of Johannesburg, Johannesburg (South Africa)
Description
Experimental results for the radiative energy loss of 206 and 234 GeV electrons in 5-10 μm thin Ta targets are presented. An increase in radiation emission probability at low photon energies compared to a 100 μm thick target is observed. This increase is due to the formation length of the GeV photons exceeding the thickness of the thin foils, the so-called Ternovskii-Shul'ga-Fomin (TSF) effect. The formation length of GeV photons from a multi-hundred GeV projectile is through the TSF effect shown directly to be a factor 1010 longer than their wavelength
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physletb.2009.01.053Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2009.01.053;
- PII
- S0370-2693(09)00102-6;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 672
- Journal Issue
- 4-5
- Journal Page Range
- p. 323-327
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40050573
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ELECTRONS; ENERGY LOSSES; FOILS; GEV RANGE 100-1000; PHOTON EMISSION; PHOTONS; PROBABILITY
- Descriptors DEC
- BOSONS; ELEMENTARY PARTICLES; EMISSION; ENERGY RANGE; FERMIONS; GEV RANGE; LEPTONS; LOSSES; MASSLESS PARTICLES
Optional Information
- Copyright
- Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.