Loading...
Please wait, while we are loading the content...
Similar Documents
Parameterization of the Angular Distribution of Gamma Rays Produced by Pp Interaction in Astronomical Environment
| Content Provider | Semantic Scholar |
|---|---|
| Author | Karlsson, Niklas Kamae, Tuneyoshi |
| Copyright Year | 2007 |
| Abstract | We present the angular distribution of gamma rays produced by proton-proton interactions in parameterized formulae to facilitate calculations in astrophysical environments. The parameterization is derived from Monte Carlo simulations of the up-to-date proton-proton interaction model by Kamae et al. (2005) and its extension by Kamae et al. (2006). This model includes the logarithmically rising inelastic cross section, the diffraction dissociation process and Feynman scaling violation. The extension adds two baryon resonance contributions: one representing the ∆(1232) and the other representing multiple resonances around 1600 MeV/c. We demonstrate the use of the formulae by calculating the predicted gamma-ray spectrum for two different cases: the first is a pencil beam of protons following a power law and the second is a fanned proton jet with a Gaussian intensity profile impinging on the surrounding material. In both cases we find that the predicted gamma-ray spectrum to be dependent on the viewing angle. Subject headings: cosmic rays — galaxies: jets — gamma rays: theory — ISM: general — neutrinos — supernovae: general |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.slac.stanford.edu/pubs/slacpubs/12750/slac-pub-12827.pdf |
| Alternate Webpage(s) | http://arxiv.org/pdf/0709.0233v1.pdf |
| Alternate Webpage(s) | http://arxiv.org/pdf/0709.0233v2.pdf |
| Alternate Webpage(s) | http://arxiv.org/pdf/0709.0233v3.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | AngularJS COSMIC Cross section (geometry) Gamma Rays Implicit Shape Model Indolent Systemic Mastocytosis Interaction Interferon Type II Medical Subject Headings Monte Carlo method Normal Statistical Distribution Protons Radiation Rajiformes Recombinant Interferon-gamma Resonance Simulation Viewing angle |
| Content Type | Text |
| Resource Type | Article |
