@article{916c15b9470b40cdb42ac8a97537bbb1,

title = "Helicity dependence of γp → N π below 450 MeV and contribution to the gerasimov-drell-hearn sum rule",

abstract = "The helicity dependence of the single pion photoproduction on the proton has been measured in the energy range from 200 to 450 MeV for the first time. The experiment, performed at the Mainz microtron MAMI, used a 4π-detector system, a circularly polarized, tagged photon beam, and a frozen-spin target. The data obtained provide new information for multipole analyses of pion photoproduction and determine the main contributions to the Gerasimov-Drell-Hearn sum rule and the forward spin polarizability γ0.",

author = "{GDH Collaboration} and {A2 Collaboration} and J. Ahrens and S. Altieri and Annand, {J. R.M.} and G. Anton and Arends, {H. J.} and K. Aulenbacher and R. Beck and C. Bradtke and A. Braghieri and N. Degrande and N. D{\textquoteright}hose and H. Dutz and S. Goertz and P. Grabmayr and K. Hansen and J. Harmsen and {von Harrach}, D. and S. Hasegawa and T. Hasegawa and E. Heid and K. Helbing and H. Holvoet and {Van Hoorebeke}, L. and N. Horikawa and T. Iwata and P. Jennewein and T. Kageya and B. Kiel and F. Klein and R. Kondratiev and K. Kossert and J. Krimmer and M. Lang and B. Lannoy and R. Leukel and V. Lisin and T. Matsuda and McGeorge, {J. C.} and A. Meier and D. Menze and W. Meyer and T. Michel and J. Naumann and Owens, {R. O.} and A. Panzeri and P. Pedroni and T. Pinelli and I. Preobrajenski and E. Radtke and E. Reichert",

year = "2000",

doi = "10.1103/PhysRevLett.84.5950",

language = "English",

volume = "84",

pages = "5950--5954",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "26",

}