单词 | photomeson |
释义 | photomesonn. Nuclear Physics. A meson emitted from a nucleus as a result of interaction with a gamma-ray photon. ΘΚΠ the world > matter > physics > atomic physics > particle physics > particle participating in strong interaction > meson > [noun] > type of tau1949 photomeson1950 theta1954 eta1961 omega meson1961 rho1961 phi meson1962 bottomonium1976 quarkonium1977 upsilon1977 1950 A. S. Bishop Photoproduction of Mesons from Hydrogen (Univ. of Calif. Radiation Lab., UCRL-874) 40 By definition, σ(Eph), the excitation function at 90° for photo-meson production from protons, constitutes the probability that a photon of energy Eph, interacting with a proton, will produce a meson at 90° in the laboratory system. 1969 Physical Rev. 177 2500 Predictions are made for high-energy charged photomeson production cross sections in which the bombarding photon is polarized. 2003 Astrophysical Jrnl. 595 346 Young, rapidly rotating magnetars whose spin and magnetic moment point in opposite directions emit high-energy neutrinos from their polar caps through photomeson interactions. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < |
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