Photons from axial-vector radiative decay in a hadron gas

Details Photons from axial-vector radiative decay in a hadron gas Photons from axial-vector radiative decay in a hadron gas

1994-06-21

arxiv.org/abs/nucl-th/9406026v1

Phys.Rev.C50:1688-1694,1994

Physics

Nuclear Physics

Nuclear Theory

10 pages + 7 figures uuencoded in separate file, MSUCL-926

Scientific paper

10.1103/PhysRevC.50.1688

Strange and non-strange axial-vector meson radiative decays contribute to photon production in hadron gas. One- and two-hadron radiative decay modes of $b_{1}(1235)$, $a_{1}(1260)$ and $K_{1}(1270)$ are studied. At 200 MeV temperature and for a narrow range in photon energies they contribute more to the net thermal photon production rate than $\pi\rho\rightarrow \pi\gamma$, $\pi\pi\rightarrow \rho\gamma$ or $\rho\rightarrow\pi\pi\gamma$. They provide significant contribution to the rate for photon energies as high as 1.5--2.0 GeV. For higher energies they are less important.

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