Accurate Test of Chiral Dynamics in the γp→π0p Reaction (CROSBI ID 194142)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Hornidge, D. ; Aguar Bartolome, P. ; Annand, J. R. M. ; Arends, H. J. ; Beck, R. ; Bekrenev, V. ; Berghauser, H. ; Bernstein, A. M. ; Braghieri, A. ; Briscoe, W. J. ; Cherepnya, S. ; Dieterle, M. ; Downie, E. J. ; Drexler, P. ; Fernandez-Ramırez, C. ; Filkov, L.V. ; Glazier, D. I. ; Hall Barrientos, P. ; Heid, E. ; Hilt, M. ; Jaegle, I. ; Jahn, O. ; Jude, T. C. ; Kashevarov, V. L. ; Keshelashvili, I. ; Kondratiev, R. ; Korolija, Milorad ; Koulbardis, A. ; Krambrich, D. ; Kruglov, S. ; Krusche, B. ; Laffoley, A. T. ; Lisin, V. ; Livingston, K. ; MacGregor, I.J.D. ; Mancell, J. ; Manley, D.M. ; McNicoll, E.F. ; Mekterović, Darko ; Metag, V. ; Mićanović, Saša ; Middleton, D.G. ; Moores, K.W. ; Mushkarenkov, A. ; Nefkens, B.M.K. ; Oberle, M. ; Ostrick, M. ; Otte, P.B. ; Oussena, B. ; Pedroni, B. ; Pheron, F. ; Polonski, A. ; Prakhov, S. ; Robinson, J. ; Rostomyan, T. ; Scherer, S. ; Schumann, S. ; Sikora, M.H. ; Starostin, A. ; Supek, Ivan ; Thiel, M. ; Thomas, A. ; Tiator, L. ; Unverzagt, M. ; Watts, D.P. ; Werthmuller, D ; Witthauer, L.
engleski
Accurate Test of Chiral Dynamics in the γp→π0p Reaction
A precision measurement of the differential cross sections dσ/dΩ and the linearly polarized photon asymmetry Σ≡(dσ⊥−dσ|)/(dσ⊥+dσ|) for the γp→π0 p reaction in the near-threshold region has been performed with a tagged photon beam and almost 4π detector at the Mainz Microtron. The Glasgow-Mainz photon tagging facility along with the Crystal Ball/TAPS multiphoton detector system and a cryogenic liquid hydrogen target were used. These data allowed for a precise determination of the energy dependence of the real parts of the S- and all three P-wave amplitudes for the first time and provide the most stringent test to date of the predictions of chiral perturbation theory and its energy region of agreement with experiment.
chiral; dynamics; gamma p reaction; CB; MAMI
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Podaci o izdanju
111 (6)
2013.
062004-1-062004-5
objavljeno
0031-9007
10.1103/PhysRevLett.111.062004
