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Accurate Test of Chiral Dynamics in the γp→π0p Reaction


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. et al.
Accurate Test of Chiral Dynamics in the γp→π0p Reaction // Physical Review Letters, 111 (2013), 6; 062004-1 doi:10.1103/PhysRevLett.111.062004 (međunarodna recenzija, članak, znanstveni)


Naslov
Accurate Test of Chiral Dynamics in the γp→π0p Reaction

Autori
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.

Izvornik
Physical Review Letters (0031-9007) 111 (2013), 6; 062004-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Chiral; dynamics; gamma p reaction; CB; MAMI

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
098-0982887-2888 - Hadronska fizika i QCD (Ivan Supek, )

Ustanove
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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