A. Braghieri
Ruhr University Bochum
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by A. Braghieri.
Physical Review Letters | 2001
J. Ahrens; M. Lang; S. Goertz; T. Speckner; F. Klein; A. W. Thomas; W. Meyer; A. Braghieri; K. Hansen; K. Helbing; F. Zapadtka; G. Reicherz; B. Schoch; A. Wakai; V. Lisin; M. Schumacher; G. Zeitler; J. C. McGeorge; B. Seitz; T. Matsuda; Tadahisa Iwata; D. Ryckbosch; S. Hasegawa; N. Takabayashi; Michael Sauer; C. Bradtke; G. Anton; R. Leukel; F. Sadiq; R. Kondratiev
A direct measurement of the helicity dependence of the total photoabsorption cross section on the proton was carried out at MAMI (Mainz) in the energy range 200<E_gamma<800 MeV. The experiment used a 4
Physical Review Letters | 2002
J. Ahrens; S. Altieri; Annand; G. Anton; H. J. Arends; K. Aulenbacher; R. Beck; C. Bradtke; A. Braghieri; N. Degrande; N. d'Hose; D. Drechsel; H. Dutz; S. Goertz; P. Grabmayr; K. Hansen; J. Harmsen; von Harrach D; S. Hasegawa; T. Hasegawa; E. Heid; K. Helbing; H. Holvoet; Van Hoorebeke L; N. Horikawa; Tadahisa Iwata; O. Jahn; P. Jennewein; T. Kageya; S. Kamalov
\pi
Physics Letters B | 2003
J. Ahrens; S. Altieri; J. R. M. Annand; G. Anton; H. J. Arends; K. Aulenbacher; R. Beck; C. Bradtke; A. Braghieri; N. Degrande; N. d'Hose; H. Dutz; S. Goertz; P. Grabmayr; K. Hansen; J. Harmsen; D. von Harrach; S. Hasegawa; T. Hasegawa; E. Heid; K. Helbing; H. Holvoet; L. Van Hoorebeke; N. Horikawa; T. Iwata; O. Jahn; P. Jennewein; T. Kageya; B. Kiel; F. Klein
detection system, a circularly polarized tagged photon beam and a frozen spin target. The contributions to the Gerasimov-Drell-Hearn sum rule and to the forward spin polarizability
Physical Review Letters | 2001
J. Ahrens; S. Altieri; G. Anton; K. Aulenbacher; R. Beck; C. Bradtke; A. Braghieri; N. Degrande; H. Dutz; S. Goertz; P. Grabmayr; K. Hansen; J. Harmsen; D. von Harrach; S. Hasegawa; T. Hasegawa; E. Heid; K. Helbing; H. Holvoet; L. Van Hoorebeke; N. Horikawa; Tadahisa Iwata; P. Jennewein; T. Kageya; B. Kiel; F. Klein; R. Kondratiev; K. Kossert; J. Krimmer; M. Lang
\gamma_0
Physics Letters B | 2003
J. Ahrens; M. Lang; S. Goertz; T. Speckner; F. Klein; A. W. Thomas; W. Meyer; A. Braghieri; K. Hansen; K. Helbing; F. Zapadtka; G. Reicherz; B. Schoch; A. Wakai; V. Lisin; B. Seitz; C. Rovelli; J. C. McGeorge; T. Matsuda; Tadahisa Iwata; D. Ryckbosch; S. Hasegawa; N. Takabayashi; Michael Sauer; C. Bradtke; G. Anton; R. Leukel; K. Aulenbacher; J. Naumann; T. Michel
determined from the data are 226 \pm 5 (stat)\pm 12(sys) \mu b and -187 \pm 8 (stat)\pm 10(sys)10^{-6} fm^4, respectively, for 200<E_\gamma<800 MeV.
Physical Review Letters | 2002
J. Ahrens; S. Altieri; J. R. M. Annand; G. Anton; H. J. Arends; K. Aulenbacher; R. Beck; C. Bradtke; A. Braghieri; N. Degrande; N. d'Hose; D. Drechsel; H. Dutz; S. Goertz; P. Grabmayr; K. Hansen; J. Harmsen; D. von Harrach; S. Hasegawa; T. Hasegawa; E. Heid; K. Helbing; H. Holvoet; L. Van Hoorebeke; N. Horikawa; Tadahisa Iwata; O. Jahn; P. Jennewein; T. Kageya; S. Kamalov
The helicity dependence of the gamma-->p-->-->ppi(0) reaction has been measured for the first time in the photon-energy range from 550 to 790 MeV. The experiment, performed at the Mainz microtron MAMI, used a 4pi-detector system, a circularly polarized, tagged photon beam, and a longitudinally polarized frozen-spin target. These data are predominantly sensitive to the D13(1520) resonance and are used to determine its helicity amplitudes.
Physical Review Letters | 2002
J. Ahrens; S. Altieri; J. R. M. Annand; G. Anton; H. J. Arends; K. Aulenbacher; R. Beck; C. Bradtke; A. Braghieri; N. Degrande; N. d'Hose; D. Drechsel; H. Dutz; S. Goertz; P. Grabmayr; Kurt Hansen; J. Harmsen; D. von Harrach; S. Hasegawa; T. Hasegawa; E. Heid; K. Helbing; H. Holvoet; L. Van Hoorebeke; N. Horikawa; Tadahisa Iwata; O. Jahn; P. Jennewein; T. Kageya; S. Kamalov
The helicity dependence of the total cross section for the (γ) over right arrow(p) over right arrownpi(+) pi(0) reaction has been measured for the first time at incident photon energies from 400 to 800 MeV The measurement was performed with the large acceptance detector DAPHNE at the tagged photon beam facility of the MAMI accelerator in Mainz. This channel is found to be excited predominantly when the photon and proton have a parallel spin orientation, due to the intermediate production of the D-13 resonance
Physical Review Letters | 2002
S. Altieri J. Ahrens; J. R. M. Annand; G. Anton; H. J. Arends; K. Aulenbacher; R. Beck; C. Bradtke; A. Braghieri; N. Degrande; N. D’Hose; D. Drechsel; H. Dutz; S. Goertz; P. Grabmayr; K. Hansen; J. Harmsen; D. von Harrach; S. Hasegawa; T. Hasegawa; E. Heid; K. Helbing; H. Holvoet; L. Van Hoorebeke; N. Horikawa; Tadahisa Iwata; O. Jahn; P. Jennewein; T. Kageya; S. Kamalov; B. Kiel
A direct measurement of the helicity dependence of the total photoabsorption cross section on the proton was carried out at MAMI (Mainz) in the energy range 200<E_gamma<800 MeV. The experiment used a 4
Physical Review Letters | 2001
J. Ahrens; S. Altieri; J. R. M. Annand; G. Anton; H. J. Arends; K. Aulenbacher; R. Beck; C. Bradtke; A. Braghieri; N. Degrande; N. d'Hose; H. Dutz; S. Goertz; P. Grabmayr; K. Hansen; J. Harmsen; D. von Harrach; S. Hasegawa; T. Hasegawa; E. Heid; K. Helbing; H. Holvoet; L. Van Hoorebeke; N. Horikawa; Tadahisa Iwata; P. Jennewein; T. Kageya; B. Kiel; F. Klein; R. Kondratiev
\pi
Physical Review Letters | 2000
J. Ahrens; S. Altieri; J. R. M. Annand; G. Anton; H. J. Arends; K. Aulenbacher; R. Beck; C. Bradtke; A. Braghieri; N. Degrande; N. d'Hose; H. Dutz; S. Goertz; P. Grabmayr; K. Hansen; J. Harmsen; D. von Harrach; S. Hasegawa; T. Hasegawa; E. Heid; K. Helbing; H. Holvoet; L. Van Hoorebeke; N. Horikawa; Tadahisa Iwata; P. Jennewein; T. Kageya; B. Kiel; F. Klein; R. Kondratiev
detection system, a circularly polarized tagged photon beam and a frozen spin target. The contributions to the Gerasimov-Drell-Hearn sum rule and to the forward spin polarizability
