http://arxiv.org/abs/1512.00952

We study pion production by proton synchrotron radiation in the presence of a strong magnetic field of several $10^{17}$G. In this case the Landau numbers of the initial and final protons, $n_i$, are $n_{i.f} \sim 10^4 – 10^5$. We find the new result that the decay width satisfies a robust scaling law, and that the polar angular distribution of emitted pion momenta is very narrow and can be easily obtained. This scaling implies that one can infer the decay width in more realistic magnetic fields of $10^{15}$G, where $n_{i,f} \sim 10^{12} – 10^{13}$, from the results for $n_{i,f} \sim 10^3 – 10^4$.

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T. Maruyama, M. Cheoun, T. Kajino, et. al.

Fri, 4 Dec 15

4/64

Comments: 10 pages, 3 figures. arXiv admin note: text overlap with arXiv:1503.05635

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